The problem was caused by not setting the CUDA_VISIBLE_DEVICES
variable within the shell correctly.
To specify CUDA device 1
for example, you would set the CUDA_VISIBLE_DEVICES
using
export CUDA_VISIBLE_DEVICES=1
or
CUDA_VISIBLE_DEVICES=1 ./cuda_executable
The former sets the variable for the life of the current shell, the latter only for the lifespan of that particular executable invocation.
If you want to specify more than one device, use
export CUDA_VISIBLE_DEVICES=0,1
or
CUDA_VISIBLE_DEVICES=0,1 ./cuda_executable
You may use it with like the following.
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:layout_marginTop="15dp">
<Space
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Save"/>
<Space
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Reset"/>
<Space
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="cancel"/>
<Space
android:layout_weight="1"
android:layout_height="wrap_content"
android:layout_width="wrap_content"/>
</LinearLayout>
Open CMD with administrative access(Right click then run as administrator) then type the following command there:
set PYTHONPATH=%PYTHONPATH%;C:\My_python_lib
Replace My_python_lib with the folder name of your installed python like for me it was C:\python27
.
Then to check if the path variable is set, type echo %PATH%
you'll see your python part in the end. Hence now python
is accessible.
From this tutorial
In your html you can pass in an array for the name i.e
<input type="text" name="address[]" />
This way php will receive an array of addresses.
This is the code I use within the EntityFramework Reverse POCO Generator
(available here)
Table SQL:
SELECT c.TABLE_SCHEMA AS SchemaName,
c.TABLE_NAME AS TableName,
t.TABLE_TYPE AS TableType,
c.ORDINAL_POSITION AS Ordinal,
c.COLUMN_NAME AS ColumnName,
CAST(CASE WHEN IS_NULLABLE = 'YES' THEN 1
ELSE 0
END AS BIT) AS IsNullable,
DATA_TYPE AS TypeName,
ISNULL(CHARACTER_MAXIMUM_LENGTH, 0) AS [MaxLength],
CAST(ISNULL(NUMERIC_PRECISION, 0) AS INT) AS [Precision],
ISNULL(COLUMN_DEFAULT, '') AS [Default],
CAST(ISNULL(DATETIME_PRECISION, 0) AS INT) AS DateTimePrecision,
ISNULL(NUMERIC_SCALE, 0) AS Scale,
CAST(COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)), c.COLUMN_NAME, 'IsIdentity') AS BIT) AS IsIdentity,
CAST(CASE WHEN COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)), c.COLUMN_NAME, 'IsIdentity') = 1 THEN 1
WHEN COLUMNPROPERTY(OBJECT_ID(QUOTENAME(c.TABLE_SCHEMA) + '.' + QUOTENAME(c.TABLE_NAME)), c.COLUMN_NAME, 'IsComputed') = 1 THEN 1
WHEN DATA_TYPE = 'TIMESTAMP' THEN 1
ELSE 0
END AS BIT) AS IsStoreGenerated,
CAST(CASE WHEN pk.ORDINAL_POSITION IS NULL THEN 0
ELSE 1
END AS BIT) AS PrimaryKey,
ISNULL(pk.ORDINAL_POSITION, 0) PrimaryKeyOrdinal,
CAST(CASE WHEN fk.COLUMN_NAME IS NULL THEN 0
ELSE 1
END AS BIT) AS IsForeignKey
FROM INFORMATION_SCHEMA.COLUMNS c
LEFT OUTER JOIN (SELECT u.TABLE_SCHEMA,
u.TABLE_NAME,
u.COLUMN_NAME,
u.ORDINAL_POSITION
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE u
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
ON u.TABLE_SCHEMA = tc.CONSTRAINT_SCHEMA
AND u.TABLE_NAME = tc.TABLE_NAME
AND u.CONSTRAINT_NAME = tc.CONSTRAINT_NAME
WHERE CONSTRAINT_TYPE = 'PRIMARY KEY') pk
ON c.TABLE_SCHEMA = pk.TABLE_SCHEMA
AND c.TABLE_NAME = pk.TABLE_NAME
AND c.COLUMN_NAME = pk.COLUMN_NAME
LEFT OUTER JOIN (SELECT DISTINCT
u.TABLE_SCHEMA,
u.TABLE_NAME,
u.COLUMN_NAME
FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE u
INNER JOIN INFORMATION_SCHEMA.TABLE_CONSTRAINTS tc
ON u.TABLE_SCHEMA = tc.CONSTRAINT_SCHEMA
AND u.TABLE_NAME = tc.TABLE_NAME
AND u.CONSTRAINT_NAME = tc.CONSTRAINT_NAME
WHERE CONSTRAINT_TYPE = 'FOREIGN KEY') fk
ON c.TABLE_SCHEMA = fk.TABLE_SCHEMA
AND c.TABLE_NAME = fk.TABLE_NAME
AND c.COLUMN_NAME = fk.COLUMN_NAME
INNER JOIN INFORMATION_SCHEMA.TABLES t
ON c.TABLE_SCHEMA = t.TABLE_SCHEMA
AND c.TABLE_NAME = t.TABLE_NAME
WHERE c.TABLE_NAME NOT IN ('EdmMetadata', '__MigrationHistory')
Foreign Key SQL:
SELECT FK.name AS FK_Table,
FkCol.name AS FK_Column,
PK.name AS PK_Table,
PkCol.name AS PK_Column,
OBJECT_NAME(f.object_id) AS Constraint_Name,
SCHEMA_NAME(FK.schema_id) AS fkSchema,
SCHEMA_NAME(PK.schema_id) AS pkSchema,
PkCol.name AS primarykey,
k.constraint_column_id AS ORDINAL_POSITION
FROM sys.objects AS PK
INNER JOIN sys.foreign_keys AS f
INNER JOIN sys.foreign_key_columns AS k
ON k.constraint_object_id = f.object_id
INNER JOIN sys.indexes AS i
ON f.referenced_object_id = i.object_id
AND f.key_index_id = i.index_id
ON PK.object_id = f.referenced_object_id
INNER JOIN sys.objects AS FK
ON f.parent_object_id = FK.object_id
INNER JOIN sys.columns AS PkCol
ON f.referenced_object_id = PkCol.object_id
AND k.referenced_column_id = PkCol.column_id
INNER JOIN sys.columns AS FkCol
ON f.parent_object_id = FkCol.object_id
AND k.parent_column_id = FkCol.column_id
ORDER BY FK_Table, FK_Column
Extended Properties:
SELECT s.name AS [schema],
t.name AS [table],
c.name AS [column],
value AS [property]
FROM sys.extended_properties AS ep
INNER JOIN sys.tables AS t
ON ep.major_id = t.object_id
INNER JOIN sys.schemas AS s
ON s.schema_id = t.schema_id
INNER JOIN sys.columns AS c
ON ep.major_id = c.object_id
AND ep.minor_id = c.column_id
WHERE class = 1
ORDER BY t.name
I know that it is very late to answer the question, but it may help someone like me who spent lots off time to fetch data using hql
So the thing is you just have to write a query
Query query = session.createQuery("from Employee");
it will give you all the data list but to fetch data from this you have to write this line.
List<Employee> fetchedData = query.list();
As simple as it looks.
To troubleshoot from developer (item 1) and system admin (item 2 and 3) perspective:
-Djavax.net.debug=ssl:handshake:verbose
.sudo apt install ssldump
or compile from source by following this link if you observe Unknown value
in cipher when you run below step.sudo ssldump -k <your-private-key> -i <your-network-interface>
Example of not working handshake of ssldump log:
New TCP connection #1: 10.1.68.86(45308) <-> 10.1.68.83(5671)
1 1 0.0111 (0.0111) C>S Handshake
ClientHello
Version 3.3
cipher suites
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
TLS_DHE_DSS_WITH_AES_256_GCM_SHA384
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
TLS_RSA_WITH_AES_128_GCM_SHA256
TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
TLS_DHE_DSS_WITH_AES_128_GCM_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
TLS_RSA_WITH_AES_256_CBC_SHA256
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
TLS_DHE_DSS_WITH_AES_256_CBC_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_AES_256_CBC_SHA
TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
TLS_DHE_DSS_WITH_AES_256_CBC_SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
TLS_RSA_WITH_AES_128_CBC_SHA256
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
TLS_DHE_DSS_WITH_AES_128_CBC_SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_DSS_WITH_AES_128_CBC_SHA
TLS_EMPTY_RENEGOTIATION_INFO_SCSV
compression methods
NULL
1 2 0.0122 (0.0011) S>C Alert
level fatal
value insufficient_security
1 0.0126 (0.0004) S>C TCP RST
Example of successful handshake of ssldump log
New TCP connection #1: 10.1.68.86(56558) <-> 10.1.68.83(8443)
1 1 0.0009 (0.0009) C>S Handshake
ClientHello
Version 3.3
cipher suites
TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
Unknown value 0xcca9
Unknown value 0xcca8
Unknown value 0xccaa
TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
TLS_DHE_RSA_WITH_AES_256_CBC_SHA
TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
TLS_DHE_RSA_WITH_AES_128_CBC_SHA
TLS_RSA_WITH_AES_256_GCM_SHA384
TLS_RSA_WITH_AES_128_GCM_SHA256
TLS_RSA_WITH_AES_256_CBC_SHA256
TLS_RSA_WITH_AES_128_CBC_SHA256
TLS_RSA_WITH_AES_256_CBC_SHA
TLS_RSA_WITH_AES_128_CBC_SHA
TLS_EMPTY_RENEGOTIATION_INFO_SCSV
compression methods
NULL
1 2 0.0115 (0.0106) S>C Handshake
ServerHello
Version 3.3
session_id[0]=
cipherSuite TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
compressionMethod NULL
1 3 0.0115 (0.0000) S>C Handshake
Certificate
1 4 0.0115 (0.0000) S>C Handshake
ServerKeyExchange
Not enough data. Found 294 bytes (expecting 32767)
1 5 0.0115 (0.0000) S>C Handshake
ServerHelloDone
1 6 0.0141 (0.0025) C>S Handshake
ClientKeyExchange
Not enough data. Found 31 bytes (expecting 16384)
1 7 0.0141 (0.0000) C>S ChangeCipherSpec
1 8 0.0141 (0.0000) C>S Handshake
1 9 0.0149 (0.0008) S>C Handshake
1 10 0.0149 (0.0000) S>C ChangeCipherSpec
1 11 0.0149 (0.0000) S>C Handshake
Example of not working Java log
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.778 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.779 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.779 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.780 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_RSA_WITH_AES_256_GCM_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.780 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.780 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.781 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.781 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.781 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.782 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_RSA_WITH_AES_128_GCM_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.782 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.782 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.782 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.783 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.783 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.783 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.783 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.783 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.784 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.784 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: T LS_DHE_RSA_WITH_AES_256_CBC_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.784 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 for TLS11
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.784 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.784 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.784 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.784 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_RSA_WITH_AES_256_GCM_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_RSA_WITH_AES_128_GCM_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.785 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_RSA_WITH_AES_256_CBC_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384 for TLS10 javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.786 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 for TLS10
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.787 MYT|HandshakeContext.java:294|Ignore unsupported cipher suite: TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 for TLS10
javax.net.ssl|WARNING|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.818 MYT|SignatureScheme.java:282|Signature algorithm, ed25519, is not supported by the underlying providers
javax.net.ssl|WARNING|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.818 MYT|SignatureScheme.java:282|Signature algorithm, ed448, is not supported by the underlying providers
javax.net.ssl|ALL|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.822 MYT|SignatureScheme.java:358|Ignore disabled signature sheme: rsa_md5
javax.net.ssl|INFO|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.822 MYT|AlpnExtension.java:161|No available application protocols
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.823 MYT|SSLExtensions.java:256|Ignore, context unavailable extension: application_layer_protocol_negotiation
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.823 MYT|SSLExtensions.java:256|Ignore, context unavailable extension: renegotiation_info
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.825 MYT|ClientHello.java:651|Produced ClientHello handshake message (
"ClientHello": {
"client version" : "TLSv1.2",
"random" : "FB BC CD 7C 17 65 86 49 3E 1C 15 37 24 94 7D E7 60 44 1B B8 F4 18 21 D0 E1 B1 31 0D E1 80 D6 A7",
"session id" : "",
"cipher suites" : "[TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384(0xC02C), TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256(0xC02B), TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384(0xC030), TLS_RSA_WITH_AES_256_GCM_SHA384(0x009D), TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384(0xC02E), TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384(0xC032), TLS_DHE_RSA_WITH_AES_256_GCM_SHA384(0x009F), TLS_DHE_DSS_WITH_AES_256_GCM_SHA384(0x00A3), TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256(0xC02F), TLS_RSA_WITH_AES_128_GCM_SHA256(0x009C), TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256(0xC02D), TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256(0xC031), TLS_DHE_RSA_WITH_AES_128_GCM_SHA256(0x009E), TLS_DHE_DSS_WITH_AES_128_GCM_SHA256(0x00A2), TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384(0xC024), TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384(0xC028), TLS_RSA_WITH_AES_256_CBC_SHA256(0x003D), TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384(0xC026), TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384(0xC02A), TLS_DHE_RSA_WITH_AES_256_CBC_SHA256(0x006B), TLS_DHE_DSS_WITH_AES_256_CBC_SHA256(0x006A), TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA(0xC00A), TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA(0xC014), TLS_RSA_WITH_AES_256_CBC_SHA(0x0035), TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA(0xC005), TLS_ECDH_RSA_WITH_AES_256_CBC_SHA(0xC00F), TLS_DHE_RSA_WITH_AES_256_CBC_SHA(0x0039), TLS_DHE_DSS_WITH_AES_256_CBC_SHA(0x0038), TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256(0xC023), TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256(0xC027), TLS_RSA_WITH_AES_128_CBC_SHA256(0x003C), TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256(0xC025), TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256(0xC029), TLS_DHE_RSA_WITH_AES_128_CBC_SHA256(0x0067), TLS_DHE_DSS_WITH_AES_128_CBC_SHA256(0x0040), TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA(0xC009), TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA(0xC013), TLS_RSA_WITH_AES_128_CBC_SHA(0x002F), TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA(0xC004), TLS_ECDH_RSA_WITH_AES_128_CBC_SHA(0xC00E), TLS_DHE_RSA_WITH_AES_128_CBC_SHA(0x0033), TLS_DHE_DSS_WITH_AES_128_CBC_SHA(0x0032), TLS_EMPTY_RENEGOTIATION_INFO_SCSV(0x00FF)]",
"compression methods" : "00", "extensions" : [
"server_name (0)": {
type=host_name (0), value=mq.tpc-ohcis.moh.gov.my
},
"status_request (5)": {
"certificate status type": ocsp
"OCSP status request": {
"responder_id": <empty>
"request extensions": {
<empty>
}
}
},
"supported_groups (10)": {
"versions": [secp256r1, secp384r1, secp521r1, sect283k1, sect283r1, sect409k1, sect409r1, sect571k1, sect571r1, secp256k1, ffdhe2048, ffdhe3072, ffdhe4096, ffdhe6144, ffdhe8192]
},
"ec_point_formats (11)": {
"formats": [uncompressed]
},
"signature_algorithms (13)": {
"signature schemes": [ecdsa_secp256r1_sha256, ecdsa_secp384r1_sha384, ecdsa_secp512r1_sha512, rsa_pss_rsae_sha256, rsa_pss_rsae_sha384, rsa_pss_rsae_sha512, rsa_pss_pss_sha256, rsa_pss_pss_sha384, rsa_pss_pss_sha512, rsa_pkcs1_sha256, rsa_pkcs1_sha384, rsa_pkcs1_sha512, dsa_sha256, ecdsa_sha224, rsa_sha224, dsa_sha224, ecdsa_sha1, rsa_pkcs1_sha1, dsa_sha1]
},
"signature_algorithms_cert (50)": {
"signature schemes": [ecdsa_secp256r1_sha256, ecdsa_secp384r1_sha384, ecdsa_secp512r1_sha512, rsa_pss_rsae_sha256, rsa_pss_rsae_sha384, rsa_pss_rsae_sha512, rsa_pss_pss_sha256, rsa_pss_pss_sha384, rsa_pss_pss_sha512, rsa_pkcs1_sha256, rsa_pkcs1_sha384, rsa_pkcs1_sha512, dsa_sha256, ecdsa_sha224, rsa_sha224, dsa_sha224, ecdsa_sha1, rsa_pkcs1_sha1, dsa_sha1]
},
"status_request_v2 (17)": {
"cert status request": {
"certificate status type": ocsp_multi
"OCSP status request": {
"responder_id": <empty>
"request extensions": {
<empty>
}
} }
},
"extended_master_secret (23)": {
<empty>
},
"supported_versions (43)": {
"versions": [TLSv1.2, TLSv1.1, TLSv1]
}
]
}
)
javax.net.ssl|DEBUG|43|SimpleAsyncTaskExecutor-1|2019-07-03 17:35:01.829 MYT|Alert.java:238|Received alert message (
"Alert": {
"level" : "fatal",
"description": "insufficient_security"
}
)
also, for syndicated content "Authors are encouraged to use the article element instead of the section element when it would make sense to syndicate the contents of the element."
This bug seem to have resurfaced (Noticed it November 2010)
I think the WebKit bug reports involved are this one and this. Essentially it boils down to incorrect cache handling when doing an If-Modified-Since
which get a 304
response.
This can be done just using Copy-Item. No need to use Get-Childitem. I think you are just overthinking it.
Copy-Item -Path C:\MyFolder -Destination \\Server\MyFolder -recurse -Force
I just tested it and it worked for me.
edit: included suggestion from the comments
# Add wildcard to source folder to ensure consistent behavior
Copy-Item -Path $sourceFolder\* -Destination $targetFolder -Recurse
If you are interested in a performance comparison of Mercurial and Git have a look at this article. The conclusion is:
Git and Mercurial both turn in good numbers but make an interesting trade-off between speed and repository size. Mercurial is fast with both adds and modifications, and keeps repository growth under control at the same time. Git is also fast, but its repository grows very quickly with modified files until you repack — and those repacks can be very slow. But the packed repository is much smaller than Mercurial's.
Set table-layout
to auto
and define an extreme width on .absorbing-column
.
Here I have set the width
to 100%
because it ensures that this column will take the maximum amount of space allowed, while the columns with no defined width will reduce to fit their content and no further.
This is one of the quirky benefits of how tables behave. The table-layout: auto
algorithm is mathematically forgiving.
You may even choose to define a min-width
on all td
elements to prevent them from becoming too narrow and the table will behave nicely.
table {_x000D_
table-layout: auto;_x000D_
border-collapse: collapse;_x000D_
width: 100%;_x000D_
}_x000D_
table td {_x000D_
border: 1px solid #ccc;_x000D_
}_x000D_
table .absorbing-column {_x000D_
width: 100%;_x000D_
}
_x000D_
<table>_x000D_
<thead>_x000D_
<tr>_x000D_
<th>Column A</th>_x000D_
<th>Column B</th>_x000D_
<th>Column C</th>_x000D_
<th class="absorbing-column">Column D</th>_x000D_
</tr>_x000D_
</thead>_x000D_
<tbody>_x000D_
<tr>_x000D_
<td>Data A.1 lorem</td>_x000D_
<td>Data B.1 ip</td>_x000D_
<td>Data C.1 sum l</td>_x000D_
<td>Data D.1</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Data A.2 ipsum</td>_x000D_
<td>Data B.2 lorem</td>_x000D_
<td>Data C.2 some data</td>_x000D_
<td>Data D.2 a long line of text that is long</td>_x000D_
</tr>_x000D_
<tr>_x000D_
<td>Data A.3</td>_x000D_
<td>Data B.3</td>_x000D_
<td>Data C.3</td>_x000D_
<td>Data D.3</td>_x000D_
</tr>_x000D_
</tbody>_x000D_
</table>
_x000D_
if all you want is simple notifications, many carriers support SMS via email; see SMS through E-Mail
Create a File
object, passing the directory path to the constructor. Use the listFiles()
to retrieve an array of File
objects for each file in the directory, and then call the getName()
method to get the filename.
List<String> results = new ArrayList<String>();
File[] files = new File("/path/to/the/directory").listFiles();
//If this pathname does not denote a directory, then listFiles() returns null.
for (File file : files) {
if (file.isFile()) {
results.add(file.getName());
}
}
I would use the "Responsive Design View" available under Tools -> Web Developer -> Responsive Design View. It will let you test your CSS against different screen sizes.
I too got this error, when developing a Backbone application using HTML5 push state in conjunction with an .htaccess which redirects any unknown files to index.html.
It turns out that when visiting a URL such as /something/5
, my /index.html
was effectively being served at /something/index.html
(thanks to my .htaccess). This had the effect of breaking all the relative URLs to my JavaScript files (from inside the index.html ), which meant that they should have 404'd on me.
However, again due to my htaccess, instead of 404'ing when attempting to retrieve the JS files, they instead returned my index.html. Thus the browser was given an index.html for every JavaScript file it tried to pull in, and when it evaluated the HTML as if it were JavaScript, it returned a JS error due to the leading < (from my tag in index.html).
The fix in my case (as I was serving the site from inside a subdirectory) was to add a base tag in my html head.
<base href="/my-app/">
To add multiples params or headers you can do the following:
constructor(private _http: HttpClient) {}
//....
const url = `${environment.APP_API}/api/request`;
let headers = new HttpHeaders().set('header1', hvalue1); // create header object
headers = headers.append('header2', hvalue2); // add a new header, creating a new object
headers = headers.append('header3', hvalue3); // add another header
let params = new HttpParams().set('param1', value1); // create params object
params = params.append('param2', value2); // add a new param, creating a new object
params = params.append('param3', value3); // add another param
return this._http.get<any[]>(url, { headers: headers, params: params })
No, unlike in a lot of other languages, XSLT variables cannot change their values after they are created. You can however, avoid extraneous code with a technique like this:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output method="xml" indent="yes" omit-xml-declaration="yes"/>
<xsl:variable name="mapping">
<item key="1" v1="A" v2="B" />
<item key="2" v1="X" v2="Y" />
</xsl:variable>
<xsl:variable name="mappingNode"
select="document('')//xsl:variable[@name = 'mapping']" />
<xsl:template match="....">
<xsl:variable name="testVariable" select="'1'" />
<xsl:variable name="values" select="$mappingNode/item[@key = $testVariable]" />
<xsl:variable name="variable1" select="$values/@v1" />
<xsl:variable name="variable2" select="$values/@v2" />
</xsl:template>
</xsl:stylesheet>
In fact, once you've got the values
variable, you may not even need separate variable1
and variable2
variables. You could just use $values/@v1
and $values/@v2
instead.
If do_something
is a simple function or can be wrapped in one, a simple map()
can do_something
range(some_number)
times:
# Py2 version - map is eager, so it can be used alone
map(do_something, xrange(some_number))
# Py3 version - map is lazy, so it must be consumed to do the work at all;
# wrapping in list() would be equivalent to Py2, but if you don't use the return
# value, it's wastefully creating a temporary, possibly huge, list of junk.
# collections.deque with maxlen 0 can efficiently run a generator to exhaustion without
# storing any of the results; the itertools consume recipe uses it for that purpose.
from collections import deque
deque(map(do_something, range(some_number)), 0)
If you want to pass arguments to do_something
, you may also find the itertools repeatfunc
recipe reads well:
To pass the same arguments:
from collections import deque
from itertools import repeat, starmap
args = (..., my args here, ...)
# Same as Py3 map above, you must consume starmap (it's a lazy generator, even on Py2)
deque(starmap(do_something, repeat(args, some_number)), 0)
To pass different arguments:
argses = [(1, 2), (3, 4), ...]
deque(starmap(do_something, argses), 0)
This will show you the table name and column name
select table_name,column_name from information_schema.columns
where column_name like '%breakfast%'
Maintaining order:
# oneliners
# slow -> . --- 14.417 seconds ---
[x for i, x in enumerate(array) if x not in array[0:i]]
# fast -> . --- 0.0378 seconds ---
[x for i, x in enumerate(array) if array.index(x) == i]
# multiple lines
# fastest -> --- 0.012 seconds ---
uniq = []
[uniq.append(x) for x in array if x not in uniq]
uniq
Order doesn't matter:
# fastest-est -> --- 0.0035 seconds ---
list(set(array))
You can use 'True' or 'False' strings for simulate bolean type data.
Select *
From <table>
Where <columna> = 'True'
I think this way maybe slow than just put 1 because it's resolved with Convert_implicit function.
urls.py:
#...
url(r'element/update/(?P<pk>\d+)/$', 'element.views.element_update', name='element_update'),
views.py:
from django.shortcuts import redirect
from .models import Element
def element_info(request):
# ...
element = Element.object.get(pk=1)
return redirect('element_update', pk=element.id)
def element_update(request, pk)
# ...
You don't need ANY of these other fancy answers. Below is a simplistic example that doesn't have all the Margin
, Height
, Width
properties set in the XAML, but should be enough to show how to get this done at a basic level.
XAML
Build a Window
page like you would normally and add your fields to it, say a Label
and TextBox
control inside a StackPanel
:
<StackPanel Orientation="Horizontal">
<Label Name="lblUser" Content="User Name:" />
<TextBox Name="txtUser" />
</StackPanel>
Then create a standard Button
for Submission ("OK" or "Submit") and a "Cancel" button if you like:
<StackPanel Orientation="Horizontal">
<Button Name="btnSubmit" Click="btnSubmit_Click" Content="Submit" />
<Button Name="btnCancel" Click="btnCancel_Click" Content="Cancel" />
</StackPanel>
Code-Behind
You'll add the Click
event handler functions in the code-behind, but when you go there, first, declare a public variable where you will store your textbox value:
public static string strUserName = String.Empty;
Then, for the event handler functions (right-click the Click
function on the button XAML, select "Go To Definition", it will create it for you), you need a check to see if your box is empty. You store it in your variable if it is not, and close your window:
private void btnSubmit_Click(object sender, RoutedEventArgs e)
{
if (!String.IsNullOrEmpty(txtUser.Text))
{
strUserName = txtUser.Text;
this.Close();
}
else
MessageBox.Show("Must provide a user name in the textbox.");
}
Calling It From Another Page
You're thinking, if I close my window with that this.Close()
up there, my value is gone, right? NO!! I found this out from another site: http://www.dreamincode.net/forums/topic/359208-wpf-how-to-make-simple-popup-window-for-input/
They had a similar example to this (I cleaned it up a bit) of how to open your Window
from another and retrieve the values:
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void btnOpenPopup_Click(object sender, RoutedEventArgs e)
{
MyPopupWindow popup = new MyPopupWindow(); // this is the class of your other page
//ShowDialog means you can't focus the parent window, only the popup
popup.ShowDialog(); //execution will block here in this method until the popup closes
string result = popup.strUserName;
UserNameTextBlock.Text = result; // should show what was input on the other page
}
}
Cancel Button
You're thinking, well what about that Cancel button, though? So we just add another public variable back in our pop-up window code-behind:
public static bool cancelled = false;
And let's include our btnCancel_Click
event handler, and make one change to btnSubmit_Click
:
private void btnCancel_Click(object sender, RoutedEventArgs e)
{
cancelled = true;
strUserName = String.Empty;
this.Close();
}
private void btnSubmit_Click(object sender, RoutedEventArgs e)
{
if (!String.IsNullOrEmpty(txtUser.Text))
{
strUserName = txtUser.Text;
cancelled = false; // <-- I add this in here, just in case
this.Close();
}
else
MessageBox.Show("Must provide a user name in the textbox.");
}
And then we just read that variable in our MainWindow
btnOpenPopup_Click
event:
private void btnOpenPopup_Click(object sender, RoutedEventArgs e)
{
MyPopupWindow popup = new MyPopupWindow(); // this is the class of your other page
//ShowDialog means you can't focus the parent window, only the popup
popup.ShowDialog(); //execution will block here in this method until the popup closes
// **Here we find out if we cancelled or not**
if (popup.cancelled == true)
return;
else
{
string result = popup.strUserName;
UserNameTextBlock.Text = result; // should show what was input on the other page
}
}
Long response, but I wanted to show how easy this is using public static
variables. No DialogResult
, no returning values, nothing. Just open the window, store your values with the button events in the pop-up window, then retrieve them afterwards in the main window function.
I improved Salselvaprabu's answer in several ways:
Call it like this:
Test-Port example.com 999
Test-Port 192.168.0.1 80
function Test-Port($hostname, $port)
{
# This works no matter in which form we get $host - hostname or ip address
try {
$ip = [System.Net.Dns]::GetHostAddresses($hostname) |
select-object IPAddressToString -expandproperty IPAddressToString
if($ip.GetType().Name -eq "Object[]")
{
#If we have several ip's for that address, let's take first one
$ip = $ip[0]
}
} catch {
Write-Host "Possibly $hostname is wrong hostname or IP"
return
}
$t = New-Object Net.Sockets.TcpClient
# We use Try\Catch to remove exception info from console if we can't connect
try
{
$t.Connect($ip,$port)
} catch {}
if($t.Connected)
{
$t.Close()
$msg = "Port $port is operational"
}
else
{
$msg = "Port $port on $ip is closed, "
$msg += "You may need to contact your IT team to open it. "
}
Write-Host $msg
}
Edit: since you meant GOPATH, see fasmat's answer (upvoted)
As mentioned in "How do I make go find my package?", you need to put a package xxx
in a directory xxx
.
See the Go language spec:
package math
A set of files sharing the same
PackageName
form the implementation of a package.
An implementation may require that all source files for a package inhabit the same directory.
The Code organization mentions:
When building a program that imports the package "
widget
" thego
command looks forsrc/pkg/widget
inside the Go root, and then—if the package source isn't found there—it searches forsrc/widget
inside each workspace in order.
(a "workspace" is a path entry in your GOPATH
: that variable can reference multiple paths for your 'src, bin, pkg
' to be)
(Original answer)
You also should set GOPATH
to ~/go, not GOROOT
, as illustrated in "How to Write Go Code".
The Go path is used to resolve import statements. It is implemented by and documented in the go/build package.
The
GOPATH
environment variable lists places to look for Go code.
On Unix, the value is a colon-separated string.
On Windows, the value is a semicolon-separated string.
On Plan 9, the value is a list.
That is different from GOROOT
:
The Go binary distributions assume they will be installed in
/usr/local/go
(orc:\Go
under Windows), but it is possible to install them in a different location.
If you do this, you will need to set theGOROOT
environment variable to that directory when using the Go tools.
You're looking for iotop
(assuming you've got kernel >2.6.20 and Python 2.5). Failing that, you're looking into hooking into the filesystem. I recommend the former.
Now in Android Studio v1.1.0 should be:
Run
> Run <your app>
<your app>\build\outputs\apk
Since static function is only visible in this file. Actually, compiler can do some optimization for you if you declare "static" to some function.
Here is a simple example.
main.c
#include <stdio.h>
static void test()
{
ghost(); // This is an unexist function.
}
int main()
{
int ret = 0;
#ifdef TEST
#else
test();
#endif
return (ret);
}
And compile with
gcc -o main main.c
You will see it failed. Because you even not implement ghost() function.
But what if we use following command.
gcc -DTEST -O2 -o main main.c
It success, and this program can be execute normally.
Why? There are 3 key points.
Only if these 3 conditions are all true, you can pass compilation. Because of this "static" declaration, compiler can confirm that test() will NEVER be called in other file. Your compiler can remove test() when compiling. Since we don't need test(), it does not matter whether ghost() is defined or implemented.
From WebService returns XML even when ResponseFormat set to JSON:
Make sure that the request is a POST request, not a GET. Scott Guthrie has a post explaining why.
Though it's written specifically for jQuery, this may also be useful to you:
Using jQuery to Consume ASP.NET JSON Web Services
dynamic psd = DBNull.Value;
if (schedule.pushScheduleDate > DateTime.MinValue)
{
psd = schedule.pushScheduleDate;
}
sql.DBController.RunGeneralStoredProcedureNonQuery("SchedulePush",
new string[] { "@PushScheduleDate"},
new object[] { psd }, 10, "PushCenter");
<div class="d-flex justify-content-center align-items-center container ">
<div class="row ">
<form action="">
<div class="form-group">
<label for="inputUserName" class="control-label">Enter UserName</label>
<input type="email" class="form-control" id="inputUserName" aria-labelledby="emailnotification">
<small id="emailnotification" class="form-text text-muted">Enter Valid Email Id</small>
</div>
<div class="form-group">
<label for="inputPassword" class="control-label">Enter Password</label>
<input type="password" class="form-control" id="inputPassword" aria-labelledby="passwordnotification">
</div>
</form>
</div>
</div>
The below command will work if you want create a new user give him all the access to a specific database(not all databases in your Mysql) on your localhost.
GRANT ALL PRIVILEGES ON test_database.* TO 'user'@'localhost' IDENTIFIED BY 'password';
This will grant all privileges to one database test_database
(in your case dbTest
) to that user on localhost.
Check what permissions that above command issued to that user by running the below command.
SHOW GRANTS FOR 'user'@'localhost'
Just in case, if you want to limit the user access to only one single table
GRANT ALL ON mydb.table_name TO 'someuser'@'host';
Finally I did a small test and while I was programming it it came to my mind, that without the setNull(..) method there would be no way to set null values for the Java primitives. For Objects both ways
setNull(..)
and
set<ClassName>(.., null))
behave the same way.
In my case, it was different! But I think sharing my experience might help someone!
In MAC, the 'keychain access' has saved my previous 'Github' password. I was trying with a new GitHub repository, and it never worked. When I removed the old GitHub password from 'keychain access' from my MAC machine it worked! I hope it helps someone.
Okay, of course the question has been answered, but no-one seems to notice the third line of your code. It continuosly bugged me.
<?php
mysqli_connect("localhost","root","","web_table");
mysql_select_db("web_table") or die(mysql_error());
for some reason, you made a mysqli connection to server, but you are trying to make a mysql connection to database.To get going, rather use
$link = mysqli_connect("localhost","root","","web_table");
mysqli_select_db ($link , "web_table" ) or die.....
or for where i began
<?php $connection = mysqli_connect("localhost","root","","web_table");
global $connection; // global connection to databases - kill it once you're done
or just query with a $connection parameter as the other argument like above. Get rid of that third line.
Yes, the list
type is a good approximation. You can use names()
on your list to set and retrieve the 'keys':
> foo <- vector(mode="list", length=3)
> names(foo) <- c("tic", "tac", "toe")
> foo[[1]] <- 12; foo[[2]] <- 22; foo[[3]] <- 33
> foo
$tic
[1] 12
$tac
[1] 22
$toe
[1] 33
> names(foo)
[1] "tic" "tac" "toe"
>
As far as I know, this is the C++ Runtime Library. So it depends on the compiler you use to create your program (A new version will include some C++0x stuff, an older version will probably not for instance. It depends of the compiler and of its version).
If you use MinGW then you should use the libstdc++-6.dll found into the folder of this compiler. MinGW/bin folder should be the place to search for it on your computer.
If you copy this file in the same directory as your executable, it should be OK.
I got this error message when I entered a number (999999) that was out of the range I'd set for the form.
<input type="number" ng-model="clipInMovieModel" id="clipInMovie" min="1" max="10000">
I would be careful with setting the display
of the element to block. Different elements have the standard display as different things. For example setting display to block for a table row in firefox causes the width of the cells to be incorrect.
Is the name of the element actually test1. I know that .NET can add extra things onto the start or end. The best way to find out if your selector is working properly is by doing this.
alert($('#text1').length);
You might just need to remove the visibility attribute
$('#text1').removeAttr('visibility');
To animate your 3D object, use the code:
<script>
$(document).ready(function(){
var x = 100;
var y = 0;
setInterval(function(){
x += 1;
y += 1;
var element = document.getElementById('cube');
element.style.webkitTransform = "translateZ(-100px) rotateY("+x+"deg) rotateX("+y+"deg)"; //for safari and chrome
element.style.MozTransform = "translateZ(-100px) rotateY("+x+"deg) rotateX("+y+"deg)"; //for firefox
},50);
//for other browsers use: "msTransform", "OTransform", "transform"
});
</script>
This error might occur when you return an object instead of a string in your __unicode__
method. For example:
class Author(models.Model):
. . .
name = models.CharField(...)
class Book(models.Model):
. . .
author = models.ForeignKey(Author, ...)
. . .
def __unicode__(self):
return self.author # <<<<<<<< this causes problems
To avoid this error you can cast the author instance to unicode:
class Book(models.Model):
. . .
def __unicode__(self):
return unicode(self.author) # <<<<<<<< this is OK
This works on keyup and paste, it colors the text red when you are almost up to the limit, truncates it when you go over and alerts you to edit your text, which you can do.
var t2= /* textarea reference*/
t2.onkeyup= t2.onpaste= function(e){
e= e || window.event;
var who= e.target || e.srcElement;
if(who){
var val= who.value, L= val.length;
if(L> 175){
who.style.color= 'red';
}
else who.style.color= ''
if(L> 180){
who.value= who.value.substring(0, 175);
alert('Your message is too long, please shorten it to 180 characters or less');
who.style.color= '';
}
}
}
If you are using 'docker-compose' as the method to spin up your container(s), there is actually a useful way to pass an environment variable defined on your server to the Docker container.
In your docker-compose.yml
file, let's say you are spinning up a basic hapi-js container and the code looks like:
hapi_server:
container_name: hapi_server
image: node_image
expose:
- "3000"
Let's say that the local server that your docker project is on has an environment variable named 'NODE_DB_CONNECT' that you want to pass to your hapi-js container, and you want its new name to be 'HAPI_DB_CONNECT'. Then in the docker-compose.yml
file, you would pass the local environment variable to the container and rename it like so:
hapi_server:
container_name: hapi_server
image: node_image
environment:
- HAPI_DB_CONNECT=${NODE_DB_CONNECT}
expose:
- "3000"
I hope this helps you to avoid hard-coding a database connect string in any file in your container!
Send Mail using phpMailer library through Gmail Please donwload library files from Github
<?php
/**
* This example shows settings to use when sending via Google's Gmail servers.
*/
//SMTP needs accurate times, and the PHP time zone MUST be set
//This should be done in your php.ini, but this is how to do it if you don't have access to that
date_default_timezone_set('Etc/UTC');
require '../PHPMailerAutoload.php';
//Create a new PHPMailer instance
$mail = new PHPMailer;
//Tell PHPMailer to use SMTP
$mail->isSMTP();
//Enable SMTP debugging
// 0 = off (for production use)
// 1 = client messages
// 2 = client and server messages
$mail->SMTPDebug = 2;
//Ask for HTML-friendly debug output
$mail->Debugoutput = 'html';
//Set the hostname of the mail server
$mail->Host = 'smtp.gmail.com';
// use
// $mail->Host = gethostbyname('smtp.gmail.com');
// if your network does not support SMTP over IPv6
//Set the SMTP port number - 587 for authenticated TLS, a.k.a. RFC4409 SMTP submission
$mail->Port = 587;
//Set the encryption system to use - ssl (deprecated) or tls
$mail->SMTPSecure = 'tls';
//Whether to use SMTP authentication
$mail->SMTPAuth = true;
//Username to use for SMTP authentication - use full email address for gmail
$mail->Username = "[email protected]";
//Password to use for SMTP authentication
$mail->Password = "yourpassword";
//Set who the message is to be sent from
$mail->setFrom('[email protected]', 'First Last');
//Set an alternative reply-to address
$mail->addReplyTo('[email protected]', 'First Last');
//Set who the message is to be sent to
$mail->addAddress('[email protected]', 'John Doe');
//Set the subject line
$mail->Subject = 'PHPMailer GMail SMTP test';
//Read an HTML message body from an external file, convert referenced images to embedded,
//convert HTML into a basic plain-text alternative body
$mail->msgHTML(file_get_contents('contents.html'), dirname(__FILE__));
//Replace the plain text body with one created manually
$mail->AltBody = 'This is a plain-text message body';
//Attach an image file
$mail->addAttachment('images/phpmailer_mini.png');
//send the message, check for errors
if (!$mail->send()) {
echo "Mailer Error: " . $mail->ErrorInfo;
} else {
echo "Message sent!";
}
Since this answer still gets voted up, I want to point out that you should almost never need to look in the header files. If you want to write reliable code, you're much better served by looking in the standard. A better question than "how is off_t
defined on my machine" is "how is off_t
defined by the standard?". Following the standard means that your code will work today and tomorrow, on any machine.
In this case, off_t
isn't defined by the C standard. It's part of the POSIX standard, which you can browse here.
Unfortunately, off_t
isn't very rigorously defined. All I could find to define it is on the page on sys/types.h
:
blkcnt_t
andoff_t
shall be signed integer types.
This means that you can't be sure how big it is. If you're using GNU C, you can use the instructions in the answer below to ensure that it's 64 bits. Or better, you can convert to a standards defined size before putting it on the wire. This is how projects like Google's Protocol Buffers work (although that is a C++ project).
So, I think "where do I find the definition in my header files" isn't the best question. But, for completeness here's the answer:
On my machine (and most machines using glibc) you'll find the definition in bits/types.h
(as a comment says at the top, never directly include this file), but it's obscured a bit in a bunch of macros. An alternative to trying to unravel them is to look at the preprocessor output:
#include <stdio.h>
#include <sys/types.h>
int main(void) {
off_t blah;
return 0;
}
And then:
$ gcc -E sizes.c | grep __off_t
typedef long int __off_t;
....
However, if you want to know the size of something, you can always use the sizeof()
operator.
Edit: Just saw the part of your question about the __
. This answer has a good discussion. The key point is that names starting with __
are reserved for the implementation (so you shouldn't start your own definitions with __
).
Since it's just false and json object, why don't you check whether it's false, otherwise it must be json.
if(ret == false || ret == "false") {
// json
}
When a search engine spider finds 301 status code in the response header of a webpage, it understands that this webpage no longer exists, it searches for location header in response pick the new URL and replace the indexed URL with the new one and also transfer pagerank.
So search engine refreshes all indexed URL that no longer exist (301 found) with the new URL, this will retain your old webpage traffic, pagerank and divert it to the new one (you will not lose you traffic of old webpage).
Browser: if a browser finds 301 status code then it caches the mapping of the old URL with the new URL, the client/browser will not attempt to request the original location but use the new location from now on unless the cache is cleared.
When a search engine spider finds 302 status for a webpage, it will only redirect temporarily to the new location and crawl both of the pages. The old webpage URL still exists in the search engine database and it always attempts to request the old location and crawl it. The client/browser will still attempt to request the original location.
Read more about how to implement it in asp.net c# and what is the impact on search engines - http://www.dotnetbull.com/2013/08/301-permanent-vs-302-temporary-status-code-aspnet-csharp-Implementation.html
An easy way to do:
function toggleButton(ref,bttnID){
document.getElementById(bttnID).disabled= ((ref.value !== ref.defaultValue) ? false : true);
}
<input ... onkeyup="toggleButton(this,'bttnsubmit');">
<input ... disabled='disabled' id='bttnsubmit' ... >
You templatize your class based on an 'unsigned int'.
Example:
template <unsigned int N>
class MyArray
{
public:
private:
double data[N]; // Use N as the size of the array
};
int main()
{
MyArray<2> a1;
MyArray<2> a2;
MyArray<4> b1;
a1 = a2; // OK The arrays are the same size.
a1 = b1; // FAIL because the size of the array is part of the
// template and thus the type, a1 and b1 are different types.
// Thus this is a COMPILE time failure.
}
Based on my experience, in a more recent version of Android, I believe it only allows Broadcast messages for Alarm wake up, not starting services directly. See this link: https://developer.android.com/training/scheduling/alarms, it says:
Alarms have these characteristics:
The operative word in the second sentence is "conjunction." What it explicitly states is that alarms are design for Broadcast (which implies not for starting services directly). I tried for several hours to use a PendingIntent with getService(), but could not get it to work, even though I confirmed the pending intent was working correctly simply using:
pendingIntent.send(0);
For "targetSdkVersion 29" this did not work .. [would not fire onStartCommand()]:
Intent launchIntent = new Intent(context, MyService.class);
launchIntent.putExtra(Type.KEY, SERVER_QUERY);
PendingIntent pendingIntent =
PendingIntent.getService(context, 0, launchIntent, 0);
I could validate the alarm was running using:
adb shell dumpsys alarm | grep com.myapp
However, this did work:
public static class AlarmReceiverWakeup extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
Log.i(TAG, "onReceive Alarm wakeup");
startService(context);
}
}
public static void scheduleAlarmWakeup(Context context) {
Intent broadcastIntent = new Intent(context, AlarmReceiverWakeup.class);
broadcastIntent.putExtra(Type.KEY, SERVER_QUERY);
PendingIntent pendingIntent =
PendingIntent.getBroadcast(context, 0, broadcastIntent, 0);
AlarmManager alarmManager =
(AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
// NOTE: using System.currentTimeMillis() fails w/ELAPSED_REALTIME_WAKEUP
// use SystemClock.elapsedRealtime() instead
alarmManager.setRepeating(
AlarmManager.ELAPSED_REALTIME_WAKEUP,
SystemClock.elapsedRealtime()+5000,
AlarmManager.INTERVAL_FIFTEEN_MINUTES/4,
getAlarmPendingIntent(context)
);
}
BTW, this is the AndroidManifest.xml entry for the Broadcast Receiver:
<receiver android:name=".ServerQueryService$AlarmReceiverWakeup"
android:enabled="true">
<intent-filter>
<category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</receiver>
To build on the answers above, it's often useful to get the column data type in the same format that you need to declare columns.
For example, varchar(50)
, varchar(max)
, decimal(p, s)
.
This allows you to do that:
SELECT
[Name] = c.[name]
, [Type] =
CASE
WHEN tp.[name] IN ('varchar', 'char') THEN tp.[name] + '(' + IIF(c.max_length = -1, 'max', CAST(c.max_length AS VARCHAR(25))) + ')'
WHEN tp.[name] IN ('nvarchar','nchar') THEN tp.[name] + '(' + IIF(c.max_length = -1, 'max', CAST(c.max_length / 2 AS VARCHAR(25)))+ ')'
WHEN tp.[name] IN ('decimal', 'numeric') THEN tp.[name] + '(' + CAST(c.[precision] AS VARCHAR(25)) + ', ' + CAST(c.[scale] AS VARCHAR(25)) + ')'
WHEN tp.[name] IN ('datetime2') THEN tp.[name] + '(' + CAST(c.[scale] AS VARCHAR(25)) + ')'
ELSE tp.[name]
END
, [RawType] = tp.[name]
, [MaxLength] = c.max_length
, [Precision] = c.[precision]
, [Scale] = c.scale
FROM sys.tables t
JOIN sys.schemas s ON t.schema_id = s.schema_id
JOIN sys.columns c ON t.object_id = c.object_id
JOIN sys.types tp ON c.user_type_id = tp.user_type_id
WHERE s.[name] = 'dbo' AND t.[name] = 'MyTable'
A Turing complete language is one that can perform any computation. The Church-Turing Thesis states that any performable computation can be done by a Turing machine. A Turing machine is a machine with infinite random access memory and a finite 'program' that dictates when it should read, write, and move across that memory, when it should terminate with a certain result, and what it should do next. The input to a Turing machine is put in its memory before it starts.
A Turing machine can make decisions based on what it sees in memory - The 'language' that only supports +
, -
, *
, and /
on integers is not Turing complete because it can't make a choice based on its input, but a Turing machine can.
A Turing machine can run forever - If we took Java, Javascript, or Python and removed the ability to do any sort of loop, GOTO, or function call, it wouldn't be Turing complete because it can't perform an arbitrary computation that never finishes. Coq is a theorem prover that can't express programs that don't terminate, so it's not Turing complete.
A Turing machine can use infinite memory - A language that was exactly like Java but would terminate once it used more than 4 Gigabytes of memory wouldn't be Turing complete, because a Turing machine can use infinite memory. This is why we can't actually build a Turing machine, but Java is still a Turing complete language because the Java language has no restriction preventing it from using infinite memory. This is one reason regular expressions aren't Turing complete.
A Turing machine has random access memory - A language that only lets you work with memory through push
and pop
operations to a stack wouldn't be Turing complete. If I have a 'language' that reads a string once and can only use memory by pushing and popping from a stack, it can tell me whether every (
in the string has its own )
later on by pushing when it sees (
and popping when it sees )
. However, it can't tell me if every (
has its own )
later on and every [
has its own ]
later on (note that ([)]
meets this criteria but ([]]
does not). A Turing machine can use its random access memory to track ()
's and []
's separately, but this language with only a stack cannot.
A Turing machine can simulate any other Turing machine - A Turing machine, when given an appropriate 'program', can take another Turing machine's 'program' and simulate it on arbitrary input. If you had a language that was forbidden from implementing a Python interpreter, it wouldn't be Turing complete.
If your language has infinite random access memory, conditional execution, and some form of repeated execution, it's probably Turing complete. There are more exotic systems that can still achieve everything a Turing machine can, which makes them Turing complete too:
Since this is a popular error, check out the PHPMailer Wiki on troubleshooting.
Also this worked for me
$mailer->Port = '587';
First, open your application module build.gradle file.
Check the classpath according to your project dependency. If not change the version of this classpath.
from:
classpath 'com.android.tools.build:gradle:1.0.0'
To:
classpath 'com.android.tools.build:gradle:2.3.2'
or higher version according to your gradle of android studio.
If its still problem, then change buildToolsVersion:
From:
buildToolsVersion '21.0.0'
To:
buildToolsVersion '25.0.0'
then hit 'Try again' and gradle will automatically sync. This will solve it.
You do cls.isFilled = True
. That overwrites the method called isFilled
and replaces it with the value True. That method is now gone and you can't call it anymore. So when you try to call it again you get an error, since it's not there anymore.
The solution is use a different name for the variable than you do for the method.
The difference between factory and service is just like the difference between a function and an object
Factory Provider
Gives us the function's return value ie. You just create an object, add properties to it, then return that same object.When you pass this service into your controller, those properties on the object will now be available in that controller through your factory. (Hypothetical Scenario)
Singleton and will only be created once
Reusable components
Factory are a great way for communicating between controllers like sharing data.
Can use other dependencies
Usually used when the service instance requires complex creation logic
Cannot be injected in .config()
function.
Used for non configurable services
If you're using an object, you could use the factory provider.
Syntax: module.factory('factoryName', function);
Service Provider
Gives us the instance of a function (object)- You just instantiated with the ‘new’ keyword and you’ll add properties to ‘this’ and the service will return ‘this’.When you pass the service into your controller, those properties on ‘this’ will now be available on that controller through your service. (Hypothetical Scenario)
Singleton and will only be created once
Reusable components
Services are used for communication between controllers to share data
You can add properties and functions to a service object by using the this
keyword
Dependencies are injected as constructor arguments
Used for simple creation logic
Cannot be injected in .config()
function.
If you're using a class you could use the service provider
Syntax: module.service(‘serviceName’, function);
In below example I have define MyService
and MyFactory
. Note how in .service
I have created the service methods using this.methodname.
In .factory
I have created a factory object and assigned the methods to it.
AngularJS .service
module.service('MyService', function() {
this.method1 = function() {
//..method1 logic
}
this.method2 = function() {
//..method2 logic
}
});
AngularJS .factory
module.factory('MyFactory', function() {
var factory = {};
factory.method1 = function() {
//..method1 logic
}
factory.method2 = function() {
//..method2 logic
}
return factory;
});
Also Take a look at this beautiful stuffs
Confused about service vs factory
You can look up an object's keys and values by either invoking JavaScript's native for in
loop:
var obj = {
foo: 'bar',
base: 'ball'
};
for(var key in obj) {
alert('key: ' + key + '\n' + 'value: ' + obj[key]);
}
or using jQuery's .each()
method:
$.each(obj, function(key, element) {
alert('key: ' + key + '\n' + 'value: ' + element);
});
With the exception of six primitive types, everything in ECMA-/JavaScript is an object. Arrays; functions; everything is an object. Even most of those primitives are actually also objects with a limited selection of methods. They are cast into objects under the hood, when required. To know the base class name, you may invoke the Object.prototype.toString
method on an object, like this:
alert(Object.prototype.toString.call([]));
The above will output [object Array]
.
There are several other class names, like [object Object]
, [object Function]
, [object Date]
, [object String]
, [object Number]
, [object Array]
, and [object Regex]
.
Building on Joan-Diego Rodriguez's routine with Jordi's approach and some of Jacek Kotowski's code - This function converts any table name for the active workbook into a usable address for SQL queries.
Note to MikeL: Addition of "[#All]" includes headings avoiding problems you reported.
Function getAddress(byVal sTableName as String) as String
With Range(sTableName & "[#All]")
getAddress= "[" & .Parent.Name & "$" & .Address(False, False) & "]"
End With
End Function
Stacks for threads are often smaller. You can change the default at link time, or change at run time also. For reference, some defaults are:
When you make your URL /about-us/
(with the trailing slash), it's easy to start with a single file index.html
and then later expand it and add more files (e.g. our-CEO-john-doe.jpg
) or even build a hierarchy under it (e.g. /about-us/company/
, /about-us/products/
, etc.) as needed, without changing the published URL. This gives you a great flexibility.
try instead this,
var dealer = from d in Dealer
join dc in DealerContact on d.DealerID equals dc.DealerID
select d;
Addressing Vicky Ronnen's head up, considering the following code:
function use_global
{
eval "$1='changed using a global var'"
}
function capture_output
{
echo "always changed"
}
function test_inside_a_func
{
local _myvar='local starting value'
echo "3. $_myvar"
use_global '_myvar'
echo "4. $_myvar"
_myvar=$( capture_output )
echo "5. $_myvar"
}
function only_difference
{
local _myvar='local starting value'
echo "7. $_myvar"
local use_global '_myvar'
echo "8. $_myvar"
local _myvar=$( capture_output )
echo "9. $_myvar"
}
declare myvar='global starting value'
echo "0. $myvar"
use_global 'myvar'
echo "1. $myvar"
myvar=$( capture_output )
echo "2. $myvar"
test_inside_a_func
echo "6. $_myvar" # this was local inside the above function
only_difference
will give
0. global starting value
1. changed using a global var
2. always changed
3. local starting value
4. changed using a global var
5. always changed
6.
7. local starting value
8. local starting value
9. always changed
Maybe the normal scenario is to use the syntax used in the test_inside_a_func
function, thus you can use both methods in the majority of cases, although capturing the output is the safer method always working in any situation, mimicking the returning value from a function that you can find in other languages, as Vicky Ronnen
correctly pointed out.
In order to execute multiple programs, I also needed a profiles
section:
<profiles>
<profile>
<id>traverse</id>
<activation>
<property>
<name>traverse</name>
</property>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<configuration>
<executable>java</executable>
<arguments>
<argument>-classpath</argument>
<argument>org.dhappy.test.NeoTraverse</argument>
</arguments>
</configuration>
</plugin>
</plugins>
</build>
</profile>
</profiles>
This is then executable as:
mvn exec:exec -Ptraverse
If the original poster was actually wanting to set an existing column to be a PRIMARY KEY
for the table and actually did not need the column to be an IDENTITY
column (two different things) then this can be done via t-SQL with:
ALTER TABLE [YourTableName]
ADD CONSTRAINT [ColumnToSetAsPrimaryKey] PRIMARY KEY ([ColumnToSetAsPrimaryKey])
Note the parenthesis around the column name after the PRIMARY KEY
option.
Although this post is old and I am making an assumption about the requestors need, I felt this additional information could be helpful to users encountering this thread as I believe the conversation could lead one to believe that an existing column can not be set to be a primary key without adding it as a new column first which would be incorrect.
Well ya you can do that in this way.
<input type="text" name="address" id="address">
<div id="map_canvas" style="width: 500px; height: 300px"></div>
<input type="button" onclick="showAddress(address.value)" value="ShowMap"/>
Java Script
function showAddress(address){
alert("This is address :"+address)
}
That is one example for the same. and that will run.
This is easy (as per HTML below)
The trick is to NOT use top or left on the element (div) with "position: fixed;". If these are not specified, the "fixed content" element will appear RELATIVE to the enclosing element (the div with "position:relative;") INSTEAD OF relative to the browser window!!!
<div id="divTermsOfUse" style="width:870px; z-index: 20; overflow:auto;">
<div id="divCloser" style="position:relative; left: 852px;">
<div style="position:fixed; z-index:22;">
<a href="javascript:hideDiv('divTermsOfUse');">
<span style="font-size:18pt; font-weight:bold;">X</span>
</a>
</div>
</div>
<div> <!-- container for... -->
lots of Text To Be Scrolled vertically...
bhah! blah! blah!
</div>
</div>
Above allowed me to locate a closing "X" button at the top of a lot of text in a div with vertical scrolling. The "X" sits in place (does not move with scrolled text and yet it does move left or right with the enclosing div container when the user resizes the width of the browser window! Thus it is "fixed" vertically, but positioned relative to the enclosing element horizontally!
Before I got this working the "X" scrolled up and out of sight when I scrolled the text content down.
Apologies for not providing my javascript hideDiv() function, but it would needlessly make this post longer. I opted to keep it as short as possible.
Lazy notes in comments.
#include <stdio.h>
// for malloc
#include <stdlib.h>
// you need the prototype
char *substring(int i,int j,char *ch);
int main(void /* std compliance */)
{
int i=0,j=2;
char s[]="String";
char *test;
// s points to the first char, S
// *s "is" the first char, S
test=substring(i,j,s); // so s only is ok
// if test == NULL, failed, give up
printf("%s",test);
free(test); // you should free it
return 0;
}
char *substring(int i,int j,char *ch)
{
int k=0;
// avoid calc same things several time
int n = j-i+1;
char *ch1;
// you can omit casting - and sizeof(char) := 1
ch1=malloc(n*sizeof(char));
// if (!ch1) error...; return NULL;
// any kind of check missing:
// are i, j ok?
// is n > 0... ch[i] is "inside" the string?...
while(k<n)
{
ch1[k]=ch[i];
i++;k++;
}
return ch1;
}
This happened to me when I forgot a , in the arguments for a locally defined macro. Spent hours trying to figure it out (barely acquainted with autotools)...
AC_CHECK_MACRO([Foo]
AC_LOCAL_DO([......
should have been
AC_CHECK_MACRO([Foo], # <-- Notice comma, doh!
AC_LOCAL_DO([......
Seems like it should have given me an error or such, but I suppose being a macro processor it can only do what its told.
A covered query is a query where all the columns in the query's result set are pulled from non-clustered indexes.
A query is made into a covered query by the judicious arrangement of indexes.
A covered query is often more performant than a non-covered query in part because non-clustered indexes have more rows per page than clustered indexes or heap indexes, so fewer pages need to be brought into memory in order to satisfy the query. They have more rows per page because only part of the table row is part of the index row.
A covering index is an index which is used in a covered query. There is no such thing as an index which, in and of itself, is a covering index. An index may be a covering index with respect to query A, while at the same time not being a covering index with respect to query B.
If your lines are multiple points instead, you can use this version.
import numpy as np
import matplotlib.pyplot as plt
"""
Sukhbinder
5 April 2017
Based on:
"""
def _rect_inter_inner(x1,x2):
n1=x1.shape[0]-1
n2=x2.shape[0]-1
X1=np.c_[x1[:-1],x1[1:]]
X2=np.c_[x2[:-1],x2[1:]]
S1=np.tile(X1.min(axis=1),(n2,1)).T
S2=np.tile(X2.max(axis=1),(n1,1))
S3=np.tile(X1.max(axis=1),(n2,1)).T
S4=np.tile(X2.min(axis=1),(n1,1))
return S1,S2,S3,S4
def _rectangle_intersection_(x1,y1,x2,y2):
S1,S2,S3,S4=_rect_inter_inner(x1,x2)
S5,S6,S7,S8=_rect_inter_inner(y1,y2)
C1=np.less_equal(S1,S2)
C2=np.greater_equal(S3,S4)
C3=np.less_equal(S5,S6)
C4=np.greater_equal(S7,S8)
ii,jj=np.nonzero(C1 & C2 & C3 & C4)
return ii,jj
def intersection(x1,y1,x2,y2):
"""
INTERSECTIONS Intersections of curves.
Computes the (x,y) locations where two curves intersect. The curves
can be broken with NaNs or have vertical segments.
usage:
x,y=intersection(x1,y1,x2,y2)
Example:
a, b = 1, 2
phi = np.linspace(3, 10, 100)
x1 = a*phi - b*np.sin(phi)
y1 = a - b*np.cos(phi)
x2=phi
y2=np.sin(phi)+2
x,y=intersection(x1,y1,x2,y2)
plt.plot(x1,y1,c='r')
plt.plot(x2,y2,c='g')
plt.plot(x,y,'*k')
plt.show()
"""
ii,jj=_rectangle_intersection_(x1,y1,x2,y2)
n=len(ii)
dxy1=np.diff(np.c_[x1,y1],axis=0)
dxy2=np.diff(np.c_[x2,y2],axis=0)
T=np.zeros((4,n))
AA=np.zeros((4,4,n))
AA[0:2,2,:]=-1
AA[2:4,3,:]=-1
AA[0::2,0,:]=dxy1[ii,:].T
AA[1::2,1,:]=dxy2[jj,:].T
BB=np.zeros((4,n))
BB[0,:]=-x1[ii].ravel()
BB[1,:]=-x2[jj].ravel()
BB[2,:]=-y1[ii].ravel()
BB[3,:]=-y2[jj].ravel()
for i in range(n):
try:
T[:,i]=np.linalg.solve(AA[:,:,i],BB[:,i])
except:
T[:,i]=np.NaN
in_range= (T[0,:] >=0) & (T[1,:] >=0) & (T[0,:] <=1) & (T[1,:] <=1)
xy0=T[2:,in_range]
xy0=xy0.T
return xy0[:,0],xy0[:,1]
if __name__ == '__main__':
# a piece of a prolate cycloid, and am going to find
a, b = 1, 2
phi = np.linspace(3, 10, 100)
x1 = a*phi - b*np.sin(phi)
y1 = a - b*np.cos(phi)
x2=phi
y2=np.sin(phi)+2
x,y=intersection(x1,y1,x2,y2)
plt.plot(x1,y1,c='r')
plt.plot(x2,y2,c='g')
plt.plot(x,y,'*k')
plt.show()
You must create two key hashes, one for Debug and one for Release.
For the Debug key hash:
On OS X, run:
keytool -exportcert -alias androiddebugkey -keystore ~/.android/debug.keystore | openssl sha1 -binary | openssl base64
On Windows, run:
keytool -exportcert -alias androiddebugkey -keystore %HOMEPATH%\.android\debug.keystore | openssl sha1 -binary | openssl
base64
For the Release key hash:
On OS X, run (replace what is between <>
with your values):
keytool -exportcert -alias <RELEASE_KEY_ALIAS> -keystore <RELEASE_KEY_PATH> | openssl sha1 -binary | openssl base64
On Windows, use (replace what is between <>
with your values):
keytool -exportcert -alias <RELEASE_KEY_ALIAS> -keystore <RELEASE_KEY_PATH> | openssl sha1 -binary | openssl base64
Although the concept of virtual constructors does not fit in well since object type is pre-requisite for object creation, its not completly over-ruled.
GOF's 'factory method' design pattern makes use of the 'concept' of virtual constructor, which is handly in certain design situations.
This worked for me and covers most edge cases :)
function toFloat(num) {
const cleanStr = String(num).replace(/[^0-9.,]/g, '');
let dotPos = cleanStr.indexOf('.');
let commaPos = cleanStr.indexOf(',');
if (dotPos < 0) dotPos = 0;
if (commaPos < 0) commaPos = 0;
const dotSplit = cleanStr.split('.');
const commaSplit = cleanStr.split(',');
const isDecimalDot = dotPos
&& (
(commaPos && dotPos > commaPos)
|| (!commaPos && dotSplit[dotSplit.length - 1].length === 2)
);
const isDecimalComma = commaPos
&& (
(dotPos && dotPos < commaPos)
|| (!dotPos && commaSplit[commaSplit.length - 1].length === 2)
);
let integerPart = cleanStr;
let decimalPart = '0';
if (isDecimalComma) {
integerPart = commaSplit[0];
decimalPart = commaSplit[1];
}
if (isDecimalDot) {
integerPart = dotSplit[0];
decimalPart = dotSplit[1];
}
return parseFloat(
`${integerPart.replace(/[^0-9]/g, '')}.${decimalPart.replace(/[^0-9]/g, '')}`,
);
}
toFloat('USD 1,500.00'); // 1500
toFloat('USD 1,500'); // 1500
toFloat('USD 500.00'); // 500
toFloat('USD 500'); // 500
toFloat('EUR 1.500,00'); // 1500
toFloat('EUR 1.500'); // 1500
toFloat('EUR 500,00'); // 500
toFloat('EUR 500'); // 500
You really need to use a memory profiler that tracks allocations. Take a look at JProfiler - their "heap walker" feature is great, and they have integration with all of the major Java IDEs. It's not free, but it isn't that expensive either ($499 for a single license) - you will burn $500 worth of time pretty quickly struggling to find a leak with less sophisticated tools.
Why not store it as an array of prices instead of object?
prices = []
$(allProducts).each(function () {
var price = parseFloat($(this).data('price'));
prices.push(price);
});
prices.sort(function(a, b) { return a - b }); //this is the magic line which sort the array
That way you can just
prices[0]; // cheapest
prices[prices.length - 1]; // most expensive
Note that you can do shift()
and pop()
to get min and max price respectively, but it will take off the price from the array.
Even better alternative is to use Sergei solution below, by using Math.max
and min
respectively.
EDIT:
I realized that this would be wrong if you have something like [11.5, 3.1, 3.5, 3.7]
as 11.5
is treated as a string, and would come before the 3.x
in dictionary order, you need to pass in custom sort function to make sure they are indeed treated as float:
prices.sort(function(a, b) { return a - b });
Even shorter variant is to use
$(()=>{
});
where $
stands for jQuery and ()=>{}
is so called 'arrow function' that inherits this
from the closure. (So that in this
you'll probably have window
instead of document
.)
I used a similar way to solve this problem using the animescm sugestion, indeed we can obtain the specific cells values from a group of selected cells using an auxiliar list:
private void dataGridCase_SelectionChanged(object sender, SelectedCellsChangedEventArgs e)
{
foreach (var item in e.AddedCells)
{
var col = item.Column as DataGridColumn;
var fc = col.GetCellContent(item.Item);
lstTxns.Items.Add((fc as TextBlock).Text);
}
}
Using the builtin Date.parse
function which accepts input in ISO8601 format and directly returns the desired integer return value:
var dates_as_int = dates.map(Date.parse);
It will be proxy configuration of your browser.
In NetWork Setting, use no proxy
For Manual proxy configuration
add exception(No Proxy for in Firefox) like localhost:8080, localhost
.
it will print log messages in your developer console (firebug/webkit dev tools/ie dev tools)
Here is a cross browser solution with pure JavaScript (Source):
var width = window.innerWidth
|| document.documentElement.clientWidth
|| document.body.clientWidth;
var height = window.innerHeight
|| document.documentElement.clientHeight
|| document.body.clientHeight;
For anybody that wants a quick solution here is how I removed Decimal from my queries in Django
total_development_cost_var = process_assumption_objects.values('total_development_cost').aggregate(sum_dev = Sum('total_development_cost', output_field=FloatField()))
total_development_cost_var = list(total_development_cost_var.values())
Hope it helps
Change the Compile SDK version,Target SDK version to Build Tools version to 24.0.0 in build.gradle if u face issue in request Feature
To get all the records where record created date is today's date Use the code after WHERE clause
WHERE CAST(Submission_date AS DATE) = CAST( curdate() AS DATE)
I hope you can find the following brief example helpful:
<!DOCTYPE html>
<html>
<head>
<script>
function checkGender(){
if(document.getElementById('male').checked) {
alert("Selected gender: "+document.getElementById('male').value)
}else if(document.getElementById('female').checked) {
alert("Selected gender: "+document.getElementById('female').value)
}
else{
alert("Please choose your gender")
}
}
</script>
</head>
<body>
<h1>Select your gender:</h1>
<form>
<input type="radio" id="male" name="gender" value="male">Male<br>
<input type="radio" id="female" name="gender" value="female">Female<br>
<button onclick="checkGender()">Check gender</button>
</form>
</body>
</html>
In the code, note that both 'name' attributes are the same to define optionality between 'male' or 'female', but the 'id's are not equals to differentiate them.
Can I use a field of the type ... and retrieve it after the GET / POST method ...
Yes (haven't you tried?)
Are there any other ways of using hidden fields in PHP?
You mean other ways of retrieving the value? No.
Of course you can use hidden fields for what ever you want.
Btw. input
fiels have no end tag. So write either just <input ...>
or as self-closing tag <input .../>
.
Right-click on the function, select "Document this" and
private bool FindTheFoo(int numberOfFoos)
becomes
/// <summary>
/// Finds the foo.
/// </summary>
/// <param name="numberOfFoos">The number of foos.</param>
/// <returns></returns>
private bool FindTheFoo(int numberOfFoos)
(yes, it is all autogenerated).
It has support for C#, VB.NET and C/C++. It is per default mapped to Ctrl+Shift+D.
Remember: you should add information beyond the method signature to the documentation. Don't just stop with the autogenerated documentation. The value of a tool like this is that it automatically generates the documentation that can be extracted from the method signature, so any information you add should be new information.
That being said, I personally prefer when methods are totally selfdocumenting, but sometimes you will have coding-standards that mandate outside documentation, and then a tool like this will save you a lot of braindead typing.
I would say to add a paragraph with a period in it and style it like so:
<p class="center">.</p>
<style>
.center {font-size: 0px; margin-bottom: anyPercentage%;}
</style>
You may need to toy around with the percentages to get it right
SELECT CONVERT(CHAR(10),GETDATE(),103) + ' ' + RIGHT(CONVERT(CHAR(26),GETDATE(),109),14)
I had this, but not sure if this is correct. Could try this out also.
mysql_query("START TRANSACTION");
$flag = true;
$query = "INSERT INTO testing (myid) VALUES ('test')";
$query2 = "INSERT INTO testing2 (myid2) VALUES ('test2')";
$result = mysql_query($query) or trigger_error(mysql_error(), E_USER_ERROR);
if (!$result) {
$flag = false;
}
$result = mysql_query($query2) or trigger_error(mysql_error(), E_USER_ERROR);
if (!$result) {
$flag = false;
}
if ($flag) {
mysql_query("COMMIT");
} else {
mysql_query("ROLLBACK");
}
Idea from here: http://www.phpknowhow.com/mysql/transactions/
You may check the following command
sp_configure 'show advanced options', 1;
RECONFIGURE;
GO --Added
sp_configure 'Ad Hoc Distributed Queries', 1;
RECONFIGURE;
GO
SELECT a.*
FROM OPENROWSET('SQLNCLI', 'Server=Seattle1;Trusted_Connection=yes;',
'SELECT GroupName, Name, DepartmentID
FROM AdventureWorks2012.HumanResources.Department
ORDER BY GroupName, Name') AS a;
GO
Or this documentation link
Express.js is a Node.js web application server framework, designed for building single-page, multi-page, and hybrid web applications. It is the de facto standard server framework for node.js.
Frameworks built on Express.
Several popular Node.js frameworks are built on Express:
LoopBack: Highly-extensible, open-source Node.js framework for quickly creating dynamic end-to-end REST APIs.
Sails: MVC framework for Node.js for building practical, production-ready apps.
Kraken: Secure and scalable layer that extends Express by providing structure and convention.
MEAN: Opinionated fullstack JavaScript framework that simplifies and accelerates web application development.
Express adds dead simple routing and support for Connect middleware, allowing many extensions and useful features.
For example,
Code:
var date = new Date('2011', '01', '02');_x000D_
alert('the original date is ' + date);_x000D_
var newdate = new Date(date);_x000D_
_x000D_
newdate.setDate(newdate.getDate() - 7); // minus the date_x000D_
_x000D_
var nd = new Date(newdate);_x000D_
alert('the new date is ' + nd);
_x000D_
Using Datepicker:
$("#in").datepicker({
minDate: 0,
onSelect: function(dateText, inst) {
var actualDate = new Date(dateText);
var newDate = new Date(actualDate.getFullYear(), actualDate.getMonth(), actualDate.getDate()+1);
$('#out').datepicker('option', 'minDate', newDate );
}
});
$("#out").datepicker();?
Extra stuff that might come handy:
getDate() Returns the day of the month (from 1-31)
getDay() Returns the day of the week (from 0-6)
getFullYear() Returns the year (four digits)
getHours() Returns the hour (from 0-23)
getMilliseconds() Returns the milliseconds (from 0-999)
getMinutes() Returns the minutes (from 0-59)
getMonth() Returns the month (from 0-11)
getSeconds() Returns the seconds (from 0-59)
Good link: MDN Date
Tag ids must be unique. You are updating the span with ID 'ItemCostSpan' of which there are two. Give the span a class and get it using find.
$("legend").each(function() {
var SoftwareItem = $(this).text();
itemCost = GetItemCost(SoftwareItem);
$("input:checked").each(function() {
var Component = $(this).next("label").text();
itemCost += GetItemCost(Component);
});
$(this).find(".ItemCostSpan").text("Item Cost = $ " + itemCost);
});
Looks like Firebug (Firefox add-on) has the answer:
Log Events
Closed
(manually)there will be something like this in Console tab:
...
mousemove clientX=1097, clientY=292
popupshowing
mousedown clientX=1097, clientY=292
focus
mouseup clientX=1097, clientY=292
click clientX=1097, clientY=292
mousemove clientX=1096, clientY=293
...
Source: Firebug Tip: Log Events
Write your first unit test
Write a JUnit test -- here's mine:
import org.junit.Assert;
import org.junit.Test;
public class MyFirstTest {
@Test
public void firstTest() {
Assert.assertTrue(true);
}
}
Or you can use an alternative:
https://github.com/kint-php/kint
It works with zero set up and has much more features than Xdebug's var_dump anyway. To bypass the nested limit on the fly with Kint, just use
+d( $variable ); // append `+` to the dump call
I got some invalid length errors. So i made this function, this should not give any length problems. Also when you do not find the searched text it will return a NULL.
CREATE FUNCTION [FN].[SearchTextGetBetweenStartAndStop](@string varchar(max),@SearchStringToStart varchar(max),@SearchStringToStop varchar(max))
RETURNS varchar(max)
BEGIN
SET @string = CASE
WHEN CHARINDEX(@SearchStringToStart,@string) = 0
OR CHARINDEX(@SearchStringToStop,RIGHT(@string,LEN(@string) - CHARINDEX(@SearchStringToStart,@string) + 1 - LEN(@SearchStringToStart))) = 0
THEN NULL
ELSE SUBSTRING(@string
,CHARINDEX(@SearchStringToStart,@string) + LEN(@SearchStringToStart) + 1
,(CHARINDEX(@SearchStringToStop,RIGHT(@string,LEN(@string) - CHARINDEX(@SearchStringToStart,@string) + 1 - LEN(@SearchStringToStart)))-2)
)
END
RETURN @string
END
I am also looking for an answer to this question, (to clarify, I want to be able to draw an image with user defined opacity such as how you can draw shapes with opacity) if you draw with primitive shapes you can set fill and stroke color with alpha to define the transparency. As far as I have concluded right now, this does not seem to affect image drawing.
//works with shapes but not with images
ctx.fillStyle = "rgba(255, 255, 255, 0.5)";
I have concluded that setting the globalCompositeOperation
works with images.
//works with images
ctx.globalCompositeOperation = "lighter";
I wonder if there is some kind third way of setting color so that we can tint images and make them transparent easily.
EDIT:
After further digging I have concluded that you can set the transparency of an image by setting the globalAlpha
parameter BEFORE you draw the image:
//works with images
ctx.globalAlpha = 0.5
If you want to achieve a fading effect over time you need some kind of loop that changes the alpha value, this is fairly easy, one way to achieve it is the setTimeout
function, look that up to create a loop from which you alter the alpha over time.
If you're already in conflicted state, and do not want to checkout path one by one. You may try
git merge --abort
git pull -X theirs
Go to file "settings.json" and disable the Python pydocstyle
:
"python.linting.pydocstyleEnabled": false
I'd like to report a bug regarding the section Source of data to search in the first answer when using en dash (–) or em dash (—) within the filename.
More specifically, if you are about to use the first option - filenames specified as arguments, the file won't be found. As soon as you use either option 2 - stdin via redirection or 3 - data stream from a pipe, findstr will find the file.
For example, this simple batch script:
echo off
chcp 1250 > nul
set INTEXTFILE1=filename with – dash.txt
set INTEXTFILE2=filename with — dash.txt
rem 3 way of findstr use with en dashed filename
echo.
echo Filename with en dash:
echo.
echo 1. As argument
findstr . "%INTEXTFILE1%"
echo.
echo 2. As stdin via redirection
findstr . < "%INTEXTFILE1%"
echo.
echo 3. As datastream from a pipe
type "%INTEXTFILE1%" | findstr .
echo.
echo.
rem The same set of operations with em dashed filename
echo Filename with em dash:
echo.
echo 1. As argument
findstr . "%INTEXTFILE2%"
echo.
echo 2. As stdin via redirection
findstr . < "%INTEXTFILE2%"
echo.
echo 3. As datastream from a pipe
type "%INTEXTFILE2%" | findstr .
echo.
pause
will print:
Filename with en dash:
As argument
FINDSTR: Cannot open filename with - dash.txt
As stdin via redirection
I am the file with an en dash.
As datastream from a pipe
I am the file with an en dash.
Filename with em dash:
As argument
FINDSTR: Cannot open filename with - dash.txt
As stdin via redirection
I am the file with an em dash.
As datastream from a pipe
I am the file with an em dash.
Hope it helps.
M.
I suspect wpis.entry.lastChangeDate
has been somehow transformed into a string in the view, before arriving to the template.
In order to verify this hypothesis, you may just check in the view if it has some property/method that only strings have - like for instance wpis.entry.lastChangeDate.upper
, and then see if the template crashes.
You could also create your own custom filter, and use it for debugging purposes, letting it inspect the object, and writing the results of the inspection on the page, or simply on the console. It would be able to inspect the object, and check if it is really a DateTimeField.
On an unrelated notice, why don't you use models.DateTimeField(
auto_now_add
=True)
to set the datetime on creation?
From PEP-8: Package and Module Names:
Modules should have short, all-lowercase names. Underscores can be used in the module name if it improves readability.
Python packages should also have short, all-lowercase names, although the use of underscores is discouraged.
When an extension module written in C or C++ has an accompanying Python module that provides a higher level (e.g. more object oriented) interface, the C/C++ module has a leading underscore (e.g. _socket).
You could map the strings to function pointer using a standard collection; executing the function when a match is found.
EDIT: Using the example in the article I gave the link to in my comment, you can declare a function pointer type:
typedef void (*funcPointer)(int);
and create multiple functions to match the signature:
void String1Action(int arg);
void String2Action(int arg);
The map would be std::string
to funcPointer
:
std::map<std::string, funcPointer> stringFunctionMap;
Then add the strings and function pointers:
stringFunctionMap.add("string1", &String1Action);
I've not tested any of the code I have just posted, it's off the top of my head :)
You can pass an InputStream to the Property, so your file can pretty much be anywhere, and called anything.
Properties properties = new Properties();
try {
properties.load(new FileInputStream("path/filename"));
} catch (IOException e) {
...
}
Iterate as:
for(String key : properties.stringPropertyNames()) {
String value = properties.getProperty(key);
System.out.println(key + " => " + value);
}
GlobalConfiguration
class is part of Microsoft.AspNet.WebApi.WebHost
nuget package...Have you upgraded this package to Web API 2?
storing peoples like this
{"Anna" : {
"age": 18,
"profession": "student"},
"Ben" : {
"age" : "nineteen",
"profession": "mechanic"}
}
will cause problems, particularly if differents peoples have same name..
rather use array storing objects like this
{
"peoples":[
{
"name":"Anna",
"age": 18,
"profession": "student"
},
{
"name":"Ben",
"age" : "nineteen",
"profession": "mechanic"
}
]
}
like this, you can enumerates objects, or acces objects by numerical index. remember that json is storage structure, not dynamically sorter or indexer. use data stored in json to build indexes as you need and acces data.
As an alternative to Activator.CreateInstance, FastObjectFactory in the linked url preforms better than Activator (as of .NET 4.0 and significantly better than .NET 3.5. No tests/stats done with .NET 4.5). See StackOverflow post for stats, info and code:
How to pass ctor args in Activator.CreateInstance or use IL?
You can update with a join if you only affect one table like this:
UPDATE table1
SET table1.name = table2.name
FROM table1, table2
WHERE table1.id = table2.id
AND table2.foobar ='stuff'
But you are trying to affect multiple tables with an update statement that joins on multiple tables. That is not possible.
However, updating two tables in one statement is actually possible but will need to create a View using a UNION that contains both the tables you want to update. You can then update the View which will then update the underlying tables.
But this is a really hacky parlor trick, use the transaction and multiple updates, it's much more intuitive.
<ul id="category-tabs">
<li><a href="javascript:void"><i class="fa fa-plus-circle"></i>Category 1</a>
<ul>
<li><a href="javascript:void">item 1</a></li>
<li><a href="javascript:void">item 2</a></li>
<li><a href="javascript:void">item 3</a></li>
</ul>
</li> </ul>
//Jquery
$(document).ready(function() {
$('li').click(function() {
$('i').toggleClass('fa-plus-square fa-minus-square');
});
});
what I'd call a hack, but given that you're only processing hour values, you can do
hour=08
echo $(( ${hour#0} +1 ))
9
hour=10
echo $(( ${hour#0} +1))
11
with little risk.
IHTH.
For Swift 5
Remove Cell
let indexPath = [NSIndexPath(row: yourArray-1, section: 0)]
yourArray.remove(at: buttonTag)
self.tableView.beginUpdates()
self.tableView.deleteRows(at: indexPath as [IndexPath] , with: .fade)
self.tableView.endUpdates()
self.tableView.reloadData()// Not mendatory, But In my case its requires
Add new cell
yourArray.append(4)
tableView.beginUpdates()
tableView.insertRows(at: [
(NSIndexPath(row: yourArray.count-1, section: 0) as IndexPath)], with: .automatic)
tableView.endUpdates()
NSMutableParagraphStyle *paragraphStyle = NSMutableParagraphStyle.new;
paragraphStyle.alignment = NSTextAlignmentCenter;
NSAttributedString *attributedString =
[NSAttributedString.alloc initWithString:@"someText"
attributes:
@{NSParagraphStyleAttributeName:paragraphStyle}];
Swift 4.2
let paragraphStyle: NSMutableParagraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = NSTextAlignment.center
let attributedString = NSAttributedString(string: "someText", attributes: [NSAttributedString.Key.paragraphStyle : paragraphStyle])
For clean code, you might make use of the javascript file here: http://rafael.adm.br/css_browser_selector/ By including the line:
<script src="css_browser_selector.js" type="text/javascript"></script>
You can write subsequent css with the following simple pattern:
.ie7 [thing] {
background-color: orange
}
.chrome [thing] {
background-color: gray
}
No Go doesn't have a ternary operator, using if/else syntax is the idiomatic way.
Why does Go not have the ?: operator?
There is no ternary testing operation in Go. You may use the following to achieve the same result:
if expr { n = trueVal } else { n = falseVal }
The reason
?:
is absent from Go is that the language's designers had seen the operation used too often to create impenetrably complex expressions. Theif-else
form, although longer, is unquestionably clearer. A language needs only one conditional control flow construct.— Frequently Asked Questions (FAQ) - The Go Programming Language
As mentioned above if you wish to as a new element your queried collection you can use:
$items = DB::select(DB::raw('SELECT * FROM items WHERE items.id = '.$id.' ;'));
foreach($items as $item){
$product = DB::select(DB::raw(' select * from product
where product_id = '. $id.';' ));
$items->push($product);
// or
// $items->put('products', $product);
}
but if you wish to add new element to each queried element you need to do like:
$items = DB::select(DB::raw('SELECT * FROM items WHERE items.id = '.$id.' ;'));
foreach($items as $item){
$product = DB::select(DB::raw(' select * from product
where product_id = '. $id.';' ));
$item->add_whatever_element_you_want = $product;
}
add_whatever_element_you_want
can be whatever you wish that your element is named (like product for example).
In HTML page:
<script>
function insert_tag()
{
$.ajax({
url: "aaa.php",
type: "POST",
data: {
ssd: "yes",
data: $("#form_insert").serialize()
},
dataType: "JSON",
success: function (jsonStr) {
$("#result1").html(jsonStr['back_message']);
}
});
}
</script>
<form id="form_insert">
<input type="text" name="f1" value="a"/>
<input type="text" name="f2" value="b"/>
<input type="text" name="f3" value="c"/>
<input type="text" name="f4" value="d"/>
<div onclick="insert_tag();"><b>OK</b></div>
<div id="result1">...</div>
</form>
on PHP page:
<?php
if(isset($_POST['data']))
{
parse_str($_POST['data'], $searcharray);
$data = array(
"back_message" => $searcharray['f1']
);
echo json_encode($data);
}
?>
on this php code, return f1
field.
I thought Activity was deprecated
No.
So for API Level 22 (with a minimum support for API Level 15 or 16), what exactly should I use both to host the components, and for the components themselves? Are there uses for all of these, or should I be using one or two almost exclusively?
Activity
is the baseline. Every activity inherits from Activity
, directly or indirectly.
FragmentActivity
is for use with the backport of fragments found in the support-v4
and support-v13
libraries. The native implementation of fragments was added in API Level 11, which is lower than your proposed minSdkVersion
values. The only reason why you would need to consider FragmentActivity
specifically is if you want to use nested fragments (a fragment holding another fragment), as that was not supported in native fragments until API Level 17.
AppCompatActivity
is from the appcompat-v7
library. Principally, this offers a backport of the action bar. Since the native action bar was added in API Level 11, you do not need AppCompatActivity
for that. However, current versions of appcompat-v7
also add a limited backport of the Material Design aesthetic, in terms of the action bar and various widgets. There are pros and cons of using appcompat-v7
, well beyond the scope of this specific Stack Overflow answer.
ActionBarActivity
is the old name of the base activity from appcompat-v7
. For various reasons, they wanted to change the name. Unless some third-party library you are using insists upon an ActionBarActivity
, you should prefer AppCompatActivity
over ActionBarActivity
.
So, given your minSdkVersion
in the 15-16 range:
If you want the backported Material Design look, use AppCompatActivity
If not, but you want nested fragments, use FragmentActivity
If not, use Activity
Just adding from comment as note: AppCompatActivity
extends FragmentActivity
, so anyone who needs to use features of FragmentActivity
can use AppCompatActivity
.
You can use either "=" or "==" operators for string comparison in bash. The important factor is the spacing within the brackets. The proper method is for brackets to contain spacing within, and operators to contain spacing around. In some instances different combinations work; however, the following is intended to be a universal example.
if [ "$1" == "something" ]; then ## GOOD
if [ "$1" = "something" ]; then ## GOOD
if [ "$1"="something" ]; then ## BAD (operator spacing)
if ["$1" == "something"]; then ## BAD (bracket spacing)
Also, note double brackets are handled slightly differently compared to single brackets ...
if [[ $a == z* ]]; then # True if $a starts with a "z" (pattern matching).
if [[ $a == "z*" ]]; then # True if $a is equal to z* (literal matching).
if [ $a == z* ]; then # File globbing and word splitting take place.
if [ "$a" == "z*" ]; then # True if $a is equal to z* (literal matching).
I hope that helps!
This question has been thoroughly answered already, but I want to add for the less experienced python developers that you might find the *
operator helpful in conjunction with view()
.
For example if you have a particular tensor size that you want a different tensor of data to conform to, you might try:
img = Variable(tensor.randn(20,30,3)) # tensor with goal shape
flat_size = 20*30*3
X = Variable(tensor.randn(50, flat_size)) # data tensor
X = X.view(-1, *img.size()) # sweet maneuver
print(X.size()) # size is (50, 20, 30, 3)
This works with numpy shape
too:
img = np.random.randn(20,30,3)
flat_size = 20*30*3
X = Variable(tensor.randn(50, flat_size))
X = X.view(-1, *img.shape)
print(X.size()) # size is (50, 20, 30, 3)
To actually cover your pattern, i.e, valid file names according to your rules, I think that you need a little more. Note this doesn't match legal file names from a system perspective. That would be system dependent and more liberal in what it accepts. This is intended to match your acceptable patterns.
^([a-zA-Z0-9]+[_-])*[a-zA-Z0-9]+\.[a-zA-Z0-9]+$
Explanation:
^
Match the start of a string. This (plus the end match) forces the string to conform to the exact expression, not merely contain a substring matching the expression.([a-zA-Z0-9]+[_-])*
Zero or more occurrences of one or more letters or numbers followed by an underscore or dash. This causes all names that contain a dash or underscore to have letters or numbers between them.[a-zA-Z0-9]+
One or more letters or numbers. This covers all names that do not contain an underscore or a dash.\.
A literal period (dot). Forces the file name to have an extension and, by exclusion from the rest of the pattern, only allow the period to be used between the name and the extension. If you want more than one extension that could be handled as well using the same technique as for the dash/underscore, just at the end.[a-zA-Z0-9]+
One or more letters or numbers. The extension must be at least one character long and must contain only letters and numbers. This is typical, but if you wanted allow underscores, that could be addressed as well. You could also supply a length range {2,3}
instead of the one or more +
matcher, if that were more appropriate.$
Match the end of the string. See the starting character.I really hate forms which don't tell me what input(s) is/are missing. So I improve the Dominic's answer - thanks for this.
In the css file set the "borderR" class to border has red color.
$('#<form_id>').submit(function () {
var allIsOk = true;
// Check if empty of not
$(this).find( 'input[type!="hidden"]' ).each(function () {
if ( ! $(this).val() ) {
$(this).addClass('borderR').focus();
allIsOk = false;
}
});
return allIsOk
});
You are trying to join Person_Fear.PersonID
onto Person_Fear.FearID
- This doesn't really make sense. You probably want something like:
SELECT Persons.Name, Persons.SS, Fears.Fear FROM Persons
LEFT JOIN Person_Fear
INNER JOIN Fears
ON Person_Fear.FearID = Fears.FearID
ON Person_Fear.PersonID = Persons.PersonID
This joins Persons
onto Fears
via the intermediate table Person_Fear
. Because the join between Persons
and Person_Fear
is a LEFT JOIN
, you will get all Persons
records.
Alternatively:
SELECT Persons.Name, Persons.SS, Fears.Fear FROM Persons
LEFT JOIN Person_Fear ON Person_Fear.PersonID = Persons.PersonID
LEFT JOIN Fears ON Person_Fear.FearID = Fears.FearID
Just use JSONObject.toString();
method.
And have a look at OkHttp's tutorial:
public static final MediaType JSON
= MediaType.parse("application/json; charset=utf-8");
OkHttpClient client = new OkHttpClient();
String post(String url, String json) throws IOException {
RequestBody body = RequestBody.create(JSON, json); // new
// RequestBody body = RequestBody.create(JSON, json); // old
Request request = new Request.Builder()
.url(url)
.post(body)
.build();
Response response = client.newCall(request).execute();
return response.body().string();
}
As hadley mentioned there are more effective ways of communicating your message than labels in stacked bar charts. In fact, stacked charts aren't very effective as the bars (each Category) doesn't share an axis so comparison is hard.
It's almost always better to use two graphs in these instances, sharing a common axis. In your example I'm assuming that you want to show overall total and then the proportions each Category contributed in a given year.
library(grid)
library(gridExtra)
library(plyr)
# create a new column with proportions
prop <- function(x) x/sum(x)
Data <- ddply(Data,"Year",transform,Share=prop(Frequency))
# create the component graphics
totals <- ggplot(Data,aes(Year,Frequency)) + geom_bar(fill="darkseagreen",stat="identity") +
xlab("") + labs(title = "Frequency totals in given Year")
proportion <- ggplot(Data, aes(x=Year,y=Share, group=Category, colour=Category))
+ geom_line() + scale_y_continuous(label=percent_format())+ theme(legend.position = "bottom") +
labs(title = "Proportion of total Frequency accounted by each Category in given Year")
# bring them together
grid.arrange(totals,proportion)
This will give you a 2 panel display like this:
If you want to add Frequency values a table is the best format.
Though this question is a bit old...I was in a similar situation and my answer here helped me fix a similar issue I had
First try with push -f
or force option
If that did not work it is possible that (as in my case) the remote repositories (or rather the references to remote repositories that show up on git remote -v
) might not be getting updated.
Outcome of above being your push synced your local/branch with your remote/branch however, the cache in your local repo still shows previous commit (of local/branch ...provided only single commit was pushed) as HEAD.
To confirm the above clone the repo at a different location and try to compare local/branch HEAD and remote/branch HEAD. If they both are same then you are probably facing the issue I did.
Solution:
$ git remote -v
github [email protected]:schacon/hw.git (fetch)
github [email protected]:schacon/hw.git (push)
$ git remote add origin git://github.com/pjhyett/hw.git
$ git remote -v
github [email protected]:schacon/hw.git (fetch)
github [email protected]:schacon/hw.git (push)
origin git://github.com/pjhyett/hw.git (fetch)
origin git://github.com/pjhyett/hw.git (push)
$ git remote rm origin
$ git remote -v
github [email protected]:schacon/hw.git (fetch)
github [email protected]:schacon/hw.git (push)
Now do a push -f
as follows
git push -f github master
### Note your command does not have origin
anymore!
Do a git pull
now
git pull github master
on git status
receive
# On branch master
nothing to commit (working directory clean)
I hope this useful for someone as the number of views is so high that searching for this error almost always lists this thread on the top
Also refer gitref for details
String query = "INSERT INTO ....";
PreparedStatement preparedStatement = connection.prepareStatement(query, PreparedStatement.RETURN_GENERATED_KEYS);
preparedStatement.setXXX(1, VALUE);
preparedStatement.setXXX(2, VALUE);
....
preparedStatement.executeUpdate();
ResultSet rs = preparedStatement.getGeneratedKeys();
int key = rs.next() ? rs.getInt(1) : 0;
if(key!=0){
System.out.println("Generated key="+key);
}
A somewhat different flavour of the Accepted Answer.
Swift 4
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1 + .milliseconds(500) +
.microseconds(500) + .nanoseconds(1000)) {
print("Delayed by 0.1 second + 500 milliseconds + 500 microseconds +
1000 nanoseconds)")
}
You can use the maven help plugin to tell you the contents of your user and global settings files.
mvn help:effective-settings
will ask maven to spit out the combined global and user settings.
Think of HTTP as a person(A) who has SHORT TERM MEMORY LOSS and forgets every person as soon as that person goes out of sight.
Now, to remember different persons, A takes a photo of that person and keeps it. Each Person's pic has an ID number. When that person comes again in sight, that person tells it's ID number to A and A finds their picture by ID number. And voila !!, A knows who is that person.
Same is with HTTP. It is suffering from SHORT TERM MEMORY LOSS. It uses Sessions to record everything you did while using a website, and then, when you come again, it identifies you with the help of Cookies(Cookie is like a token). Picture is the Session here, and ID is the Cookie here.
All these answers are explaining the scenario of your second activity needs to be finish after sending the data.
But in case if you don't want to finish the second activity and want to send the data back in to first then for that you can use BroadCastReceiver.
In Second Activity -
Intent intent = new Intent("data");
intent.putExtra("some_data", true);
LocalBroadcastManager.getInstance(this).sendBroadcast(intent);
In First Activity-
private BroadcastReceiver tempReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
// do some action
}
};
Register the receiver in onCreate()-
LocalBroadcastManager.getInstance(this).registerReceiver(tempReceiver,new IntentFilter("data"));
Unregister it in onDestroy()
When you create an object in a .Net framework application, you don't need to think about how the data is stored in memory. Because the .Net Framework takes care of that for you. However, if you want to store the contents of an object to a file, send an object to another process or transmit it across the network, you do have to think about how the object is represented because you will need to convert to a different format. This conversion is called SERIALIZATION.
Serialization allows the developer to save the state of an object and recreate it as needed, providing storage of objects as well as data exchange. Through serialization, a developer can perform actions like sending the object to a remote application by means of a Web Service, passing an object from one domain to another, passing an object through a firewall as an XML string, or maintaining security or user-specific information across applications.
Apply SerializableAttribute
to a type to indicate that instances of this type can be serialized. Apply the SerializableAttribute
even if the class also implements the ISerializable
interface to control the serialization process.
All the public and private fields in a type that are marked by the SerializableAttribute
are serialized by default, unless the type implements the ISerializable
interface to override the serialization process. The default serialization process excludes fields that are marked with NonSerializedAttribute
. If a field of a serializable type contains a pointer, a handle, or some other data structure that is specific to a particular environment, and cannot be meaningfully reconstituted in a different environment, then you might want to apply NonSerializedAttribute
to that field.
See MSDN for more details.
Edit 1
Any reason to not mark something as serializable
When transferring or saving data, you need to send or save only the required data. So there will be less transfer delays and storage issues. So you can opt out unnecessary chunk of data when serializing.
It's very annoying. I'm not sure why Google places it there - no one needs these trash from emulator at all; we know what we are doing. I'm using pidcat
and I modified it a bit
BUG_LINE = re.compile(r'.*nativeGetEnabledTags.*')
BUG_LINE2 = re.compile(r'.*glUtilsParamSize.*')
BUG_LINE3 = re.compile(r'.*glSizeof.*')
and
bug_line = BUG_LINE.match(line)
if bug_line is not None:
continue
bug_line2 = BUG_LINE2.match(line)
if bug_line2 is not None:
continue
bug_line3 = BUG_LINE3.match(line)
if bug_line3 is not None:
continue
It's an ugly fix and if you're using the real device you may need those OpenGL errors, but you got the idea.
While Andriy's proposal will work well for INSERTs of a small number of records, full table scans will be done on the final join as both 'enumerated' and '@new_super' are not indexed, resulting in poor performance for large inserts.
This can be resolved by specifying a primary key on the @new_super table, as follows:
DECLARE @new_super TABLE (
row_num INT IDENTITY(1,1) PRIMARY KEY CLUSTERED,
super_id int
);
This will result in the SQL optimizer scanning through the 'enumerated' table but doing an indexed join on @new_super to get the new key.
I think structuring the project by functionalities is a practical method. It makes the project scalable and maintainable easily. And it makes each part of the project working in a total autonomy. Let me know what you think about this structure below: ANGULAR TYPESCRIPT PROJECT STRUCTURE – ANGULAR 2
source : http://www.angulartypescript.com/angular-typescript-project-structure/
This also works
SELECT *
FROM tableB
WHERE ID NOT IN (
SELECT ID FROM tableA
);
Big task, chances are you shouldn't reinvent the wheel rather using an existing wheel (such as paypal).
However, if you insist on continuing. Start small, you can use a credit card processing facility (Moneris, Authorize.NET) to process credit cards. Most providers have an API you can use. Be wary that you may need to use different providers depending on the card type (Discover, Visa, Amex, Mastercard) and Country (USA, Canada, UK). So build it so that you can communicate with multiple credit card processing APIs.
Security is essential if you are storing credit cards and payment details. Ensure that you are encrypting things properly.
Again, don't reinvent the wheel. You are better off using an existing provider and focussing your development attention on solving an problem that can't easily be purchase.
If someone reads the original question to mean that they want to dynamically change the hover css and not just change the base css rule for the element, I've found this to work:
I have a dynamically loaded page that requires me to find out how high the container becomes after data is loaded. Once loaded, I want to change the hover effect of the css so that an element covers the resulting container. I need to change the css .daymark:hover rule to have a new height. This is how...
function changeAttr(attrName,changeThis,toThis){
var mysheet=document.styleSheets[1], targetrule;
var myrules=mysheet.cssRules? mysheet.cssRules: mysheet.rules;
for (i=0; i<myrules.length; i++){
if(myrules[i].selectorText.toLowerCase()==".daymark:hover"){ //find "a:hover" rule
targetrule=myrules[i];
break;
}
}
switch(changeThis)
{
case "height":
targetrule.style.height=toThis+"px";
break;
case "width":
targetrule.style.width=toThis+"px";
break;
}
}
In IntelliJ 14, the path to the settings for Auto Import has changed. The path is
IntelliJ IDEA->Preferences->Editor->General->Auto Import
then follow the instructions above, clicking Add unambiguous imports on the fly
I can't imagine why this wouldn't be set by default.
I have tried different kinds of maps and the Conversion Box worked. I have used your map and have pasted an example below with some inner maps. Hope it is helpful to you ....
import java.util.HashMap;
import java.util.Map;
import cjm.component.cb.map.ToMap;
import cjm.component.cb.xml.ToXML;
public class Testing
{
public static void main(String[] args)
{
try
{
Map<String, Object> map = new HashMap<String, Object>(); // ORIGINAL MAP
map.put("name", "chris");
map.put("island", "faranga");
Map<String, String> mapInner = new HashMap<String, String>(); // SAMPLE INNER MAP
mapInner.put("a", "A");
mapInner.put("b", "B");
mapInner.put("c", "C");
map.put("innerMap", mapInner);
Map<String, Object> mapRoot = new HashMap<String, Object>(); // ROOT MAP
mapRoot.put("ROOT", map);
System.out.println("Map: " + mapRoot);
System.out.println();
ToXML toXML = new ToXML();
String convertedXML = String.valueOf(toXML.convertToXML(mapRoot, true)); // CONVERTING ROOT MAP TO XML
System.out.println("Converted XML: " + convertedXML);
System.out.println();
ToMap toMap = new ToMap();
Map<String, Object> convertedMap = toMap.convertToMap(convertedXML); // CONVERTING CONVERTED XML BACK TO MAP
System.out.println("Converted Map: " + convertedMap);
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
Output:
Map: {ROOT={name=chris, innerMap={b=B, c=C, a=A}, island=faranga}}
-------- Map Detected --------
-------- XML created Successfully --------
Converted XML: <ROOT><name>chris</name><innerMap><b>B</b><c>C</c><a>A</a></innerMap><island>faranga</island></ROOT>
-------- XML Detected --------
-------- Map created Successfully --------
Converted Map: {ROOT={name=chris, innerMap={b=B, c=C, a=A}, island=faranga}}
private static UserService userService = ApplicationContextHolder.getContext().getBean(UserService.class);
Python 3's range
type works just like Python 2's xrange
. I'm not sure why you're seeing a slowdown, since the iterator returned by your xrange
function is exactly what you'd get if you iterated over range
directly.
I'm not able to reproduce the slowdown on my system. Here's how I tested:
Python 2, with xrange
:
Python 2.7.3 (default, Apr 10 2012, 23:24:47) [MSC v.1500 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> import timeit
>>> timeit.timeit("[x for x in xrange(1000000) if x%4]",number=100)
18.631936646865853
Python 3, with range
is a tiny bit faster:
Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 10:57:17) [MSC v.1600 64 bit (AMD64)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> import timeit
>>> timeit.timeit("[x for x in range(1000000) if x%4]",number=100)
17.31399508687869
I recently learned that Python 3's range
type has some other neat features, such as support for slicing: range(10,100,2)[5:25:5]
is range(20, 60, 10)
!
Add "bDestroy": true in your dataTable Like:-
$('#example').dataTable({
....
stateSave: true,
"bDestroy": true
});
It Will Work.
If nobody has pulled it, you can probably do something like
git push remote +branch^1:remotebranch
which will forcibly update the remote branch to the last but one commit of your branch.
That worked
<audio src="${ song.url }" id="audio"></audio>
<i class="glyphicon glyphicon-play-circle b-play" id="play" onclick="play()"></i>
<script>
function play() {
var audio = document.getElementById('audio');
if (audio.paused) {
audio.play();
$('#play').removeClass('glyphicon-play-circle')
$('#play').addClass('glyphicon-pause')
}else{
audio.pause();
audio.currentTime = 0
$('#play').addClass('glyphicon-play-circle')
$('#play').removeClass('glyphicon-pause')
}
}
</script>
In the controller, you need to add the login object as an attribute of the model:
model.addAttribute("login", new Login());
Like this:
@RequestMapping(value = "/", method = RequestMethod.GET)
public String displayLogin(Model model) {
model.addAttribute("login", new Login());
return "login";
}
This prints all elements that contain sub:
for s in filter (lambda x: sub in x, list): print (s)
Alternatively if one does not see "Untrust App Developer" dialog:
Go to your iPhone > Settings > General > Profile > "[email protected]" > Trust
Interestingly most other answers suffer from these two problems:
I've recently written an article on the topic: A Probably Incomplete, Comprehensive Guide to the Many Different Ways to JOIN Tables in SQL, which I'll summarise here.
This is why Venn diagrams explain them so inaccurately, because a JOIN creates a cartesian product between the two joined tables. Wikipedia illustrates it nicely:
The SQL syntax for cartesian products is CROSS JOIN
. For example:
SELECT *
-- This just generates all the days in January 2017
FROM generate_series(
'2017-01-01'::TIMESTAMP,
'2017-01-01'::TIMESTAMP + INTERVAL '1 month -1 day',
INTERVAL '1 day'
) AS days(day)
-- Here, we're combining all days with all departments
CROSS JOIN departments
Which combines all rows from one table with all rows from the other table:
Source:
+--------+ +------------+
| day | | department |
+--------+ +------------+
| Jan 01 | | Dept 1 |
| Jan 02 | | Dept 2 |
| ... | | Dept 3 |
| Jan 30 | +------------+
| Jan 31 |
+--------+
Result:
+--------+------------+
| day | department |
+--------+------------+
| Jan 01 | Dept 1 |
| Jan 01 | Dept 2 |
| Jan 01 | Dept 3 |
| Jan 02 | Dept 1 |
| Jan 02 | Dept 2 |
| Jan 02 | Dept 3 |
| ... | ... |
| Jan 31 | Dept 1 |
| Jan 31 | Dept 2 |
| Jan 31 | Dept 3 |
+--------+------------+
If we just write a comma separated list of tables, we'll get the same:
-- CROSS JOINing two tables:
SELECT * FROM table1, table2
An INNER JOIN
is just a filtered CROSS JOIN
where the filter predicate is called Theta
in relational algebra.
For instance:
SELECT *
-- Same as before
FROM generate_series(
'2017-01-01'::TIMESTAMP,
'2017-01-01'::TIMESTAMP + INTERVAL '1 month -1 day',
INTERVAL '1 day'
) AS days(day)
-- Now, exclude all days/departments combinations for
-- days before the department was created
JOIN departments AS d ON day >= d.created_at
Note that the keyword INNER
is optional (except in MS Access).
(look at the article for result examples)
A special kind of Theta-JOIN is equi JOIN, which we use most. The predicate joins the primary key of one table with the foreign key of another table. If we use the Sakila database for illustration, we can write:
SELECT *
FROM actor AS a
JOIN film_actor AS fa ON a.actor_id = fa.actor_id
JOIN film AS f ON f.film_id = fa.film_id
This combines all actors with their films.
Or also, on some databases:
SELECT *
FROM actor
JOIN film_actor USING (actor_id)
JOIN film USING (film_id)
The USING()
syntax allows for specifying a column that must be present on either side of a JOIN operation's tables and creates an equality predicate on those two columns.
Other answers have listed this "JOIN type" separately, but that doesn't make sense. It's just a syntax sugar form for equi JOIN, which is a special case of Theta-JOIN or INNER JOIN. NATURAL JOIN simply collects all columns that are common to both tables being joined and joins USING()
those columns. Which is hardly ever useful, because of accidental matches (like LAST_UPDATE
columns in the Sakila database).
Here's the syntax:
SELECT *
FROM actor
NATURAL JOIN film_actor
NATURAL JOIN film
Now, OUTER JOIN
is a bit different from INNER JOIN
as it creates a UNION
of several cartesian products. We can write:
-- Convenient syntax:
SELECT *
FROM a LEFT JOIN b ON <predicate>
-- Cumbersome, equivalent syntax:
SELECT a.*, b.*
FROM a JOIN b ON <predicate>
UNION ALL
SELECT a.*, NULL, NULL, ..., NULL
FROM a
WHERE NOT EXISTS (
SELECT * FROM b WHERE <predicate>
)
No one wants to write the latter, so we write OUTER JOIN
(which is usually better optimised by databases).
Like INNER
, the keyword OUTER
is optional, here.
OUTER JOIN
comes in three flavours:
LEFT [ OUTER ] JOIN
: The left table of the JOIN
expression is added to the union as shown above.RIGHT [ OUTER ] JOIN
: The right table of the JOIN
expression is added to the union as shown above.FULL [ OUTER ] JOIN
: Both tables of the JOIN
expression are added to the union as shown above.All of these can be combined with the keyword USING()
or with NATURAL
(I've actually had a real world use-case for a NATURAL FULL JOIN
recently)
There are some historic, deprecated syntaxes in Oracle and SQL Server, which supported OUTER JOIN
already before the SQL standard had a syntax for this:
-- Oracle
SELECT *
FROM actor a, film_actor fa, film f
WHERE a.actor_id = fa.actor_id(+)
AND fa.film_id = f.film_id(+)
-- SQL Server
SELECT *
FROM actor a, film_actor fa, film f
WHERE a.actor_id *= fa.actor_id
AND fa.film_id *= f.film_id
Having said so, don't use this syntax. I just list this here so you can recognise it from old blog posts / legacy code.
OUTER JOIN
Few people know this, but the SQL standard specifies partitioned OUTER JOIN
(and Oracle implements it). You can write things like this:
WITH
-- Using CONNECT BY to generate all dates in January
days(day) AS (
SELECT DATE '2017-01-01' + LEVEL - 1
FROM dual
CONNECT BY LEVEL <= 31
),
-- Our departments
departments(department, created_at) AS (
SELECT 'Dept 1', DATE '2017-01-10' FROM dual UNION ALL
SELECT 'Dept 2', DATE '2017-01-11' FROM dual UNION ALL
SELECT 'Dept 3', DATE '2017-01-12' FROM dual UNION ALL
SELECT 'Dept 4', DATE '2017-04-01' FROM dual UNION ALL
SELECT 'Dept 5', DATE '2017-04-02' FROM dual
)
SELECT *
FROM days
LEFT JOIN departments
PARTITION BY (department) -- This is where the magic happens
ON day >= created_at
Parts of the result:
+--------+------------+------------+
| day | department | created_at |
+--------+------------+------------+
| Jan 01 | Dept 1 | | -- Didn't match, but still get row
| Jan 02 | Dept 1 | | -- Didn't match, but still get row
| ... | Dept 1 | | -- Didn't match, but still get row
| Jan 09 | Dept 1 | | -- Didn't match, but still get row
| Jan 10 | Dept 1 | Jan 10 | -- Matches, so get join result
| Jan 11 | Dept 1 | Jan 10 | -- Matches, so get join result
| Jan 12 | Dept 1 | Jan 10 | -- Matches, so get join result
| ... | Dept 1 | Jan 10 | -- Matches, so get join result
| Jan 31 | Dept 1 | Jan 10 | -- Matches, so get join result
The point here is that all rows from the partitioned side of the join will wind up in the result regardless if the JOIN
matched anything on the "other side of the JOIN". Long story short: This is to fill up sparse data in reports. Very useful!
Seriously? No other answer got this? Of course not, because it doesn't have a native syntax in SQL, unfortunately (just like ANTI JOIN below). But we can use IN()
and EXISTS()
, e.g. to find all actors who have played in films:
SELECT *
FROM actor a
WHERE EXISTS (
SELECT * FROM film_actor fa
WHERE a.actor_id = fa.actor_id
)
The WHERE a.actor_id = fa.actor_id
predicate acts as the semi join predicate. If you don't believe it, check out execution plans, e.g. in Oracle. You'll see that the database executes a SEMI JOIN operation, not the EXISTS()
predicate.
This is just the opposite of SEMI JOIN (be careful not to use NOT IN
though, as it has an important caveat)
Here are all the actors without films:
SELECT *
FROM actor a
WHERE NOT EXISTS (
SELECT * FROM film_actor fa
WHERE a.actor_id = fa.actor_id
)
Some folks (especially MySQL people) also write ANTI JOIN like this:
SELECT *
FROM actor a
LEFT JOIN film_actor fa
USING (actor_id)
WHERE film_id IS NULL
I think the historic reason is performance.
OMG, this one is too cool. I'm the only one to mention it? Here's a cool query:
SELECT a.first_name, a.last_name, f.*
FROM actor AS a
LEFT OUTER JOIN LATERAL (
SELECT f.title, SUM(amount) AS revenue
FROM film AS f
JOIN film_actor AS fa USING (film_id)
JOIN inventory AS i USING (film_id)
JOIN rental AS r USING (inventory_id)
JOIN payment AS p USING (rental_id)
WHERE fa.actor_id = a.actor_id -- JOIN predicate with the outer query!
GROUP BY f.film_id
ORDER BY revenue DESC
LIMIT 5
) AS f
ON true
It will find the TOP 5 revenue producing films per actor. Every time you need a TOP-N-per-something query, LATERAL JOIN
will be your friend. If you're a SQL Server person, then you know this JOIN
type under the name APPLY
SELECT a.first_name, a.last_name, f.*
FROM actor AS a
OUTER APPLY (
SELECT f.title, SUM(amount) AS revenue
FROM film AS f
JOIN film_actor AS fa ON f.film_id = fa.film_id
JOIN inventory AS i ON f.film_id = i.film_id
JOIN rental AS r ON i.inventory_id = r.inventory_id
JOIN payment AS p ON r.rental_id = p.rental_id
WHERE fa.actor_id = a.actor_id -- JOIN predicate with the outer query!
GROUP BY f.film_id
ORDER BY revenue DESC
LIMIT 5
) AS f
OK, perhaps that's cheating, because a LATERAL JOIN
or APPLY
expression is really a "correlated subquery" that produces several rows. But if we allow for "correlated subqueries", we can also talk about...
This is only really implemented by Oracle and Informix (to my knowledge), but it can be emulated in PostgreSQL using arrays and/or XML and in SQL Server using XML.
MULTISET
produces a correlated subquery and nests the resulting set of rows in the outer query. The below query selects all actors and for each actor collects their films in a nested collection:
SELECT a.*, MULTISET (
SELECT f.*
FROM film AS f
JOIN film_actor AS fa USING (film_id)
WHERE a.actor_id = fa.actor_id
) AS films
FROM actor
As you have seen, there are more types of JOIN than just the "boring" INNER
, OUTER
, and CROSS JOIN
that are usually mentioned. More details in my article. And please, stop using Venn diagrams to illustrate them.
You can't set CURRENT_TIMESTAMP as default value with DATETIME.
But you can do it with TIMESTAMP.
See the difference here.
Words from this blog
The DEFAULT value clause in a data type specification indicates a default value for a column. With one exception, the default value must be a constant; it cannot be a function or an expression.
This means, for example, that you cannot set the default for a date column to be the value of a function such as NOW() or CURRENT_DATE.
The exception is that you can specify CURRENT_TIMESTAMP as the default for a TIMESTAMP column.
Figured it out, folks! for the NAME of the text box, you have to use "q". I had "g" just for my own personal preferences. But apparently it has to be "q".
Anyone know why?
As another answer alludes to under newer versions of Windows it seems to be necessary to read the standard output and/or standard error streams otherwise it will stall between commands. A neater way to do that instead of using delays is to use an async callback to consume output from the stream:
static void RunCommands(List<string> cmds, string workingDirectory = "")
{
var process = new Process();
var psi = new ProcessStartInfo();
psi.FileName = "cmd.exe";
psi.RedirectStandardInput = true;
psi.RedirectStandardOutput = true;
psi.RedirectStandardError = true;
psi.UseShellExecute = false;
psi.WorkingDirectory = workingDirectory;
process.StartInfo = psi;
process.Start();
process.OutputDataReceived += (sender, e) => { Console.WriteLine(e.Data); };
process.ErrorDataReceived += (sender, e) => { Console.WriteLine(e.Data); };
process.BeginOutputReadLine();
process.BeginErrorReadLine();
using (StreamWriter sw = process.StandardInput)
{
foreach (var cmd in cmds)
{
sw.WriteLine (cmd);
}
}
process.WaitForExit();
}
In React or any Javascript modules that internally use Webpack, if the src attribute value of img is given as a path in string format as given below
e.g. <img src={'/src/images/logo.png'} /> or <img src='/src/images/logo.png' />
then during build, the final HTML page built contains src='/src/images/logo.png'. This path is not read during build time, but is read during rendering in browser. At the rendering time, if the logo.png is not found in the /src/images directory, then the image would not render. If you open the console in browser, you can see the 404 error for the image. I believe you meant to use ./src directory instead of /src directory. In that case, the development directory ./src is not available to the browser. When the page is loaded in browser only the files in the 'public' directory are available to the browser. So, the relative path ./src is assumed to be public/src directory and if the logo.png is not found in public/src/images/ directory, it would not render the image.
So, the solution for this problem is either to put your image in the public directory and reference the relative path from public directory or use import
or require
keywords in React or any Javascript module to inform the Webpack to read this path during build phase and include the image in the final build output. The details of both these methods has been elaborated by Dan Abramov in his answer, please refer to it or use the link: https://create-react-app.dev/docs/adding-images-fonts-and-files/
If you wanted to search some elements based on a regex, you can use the filter
function. For example, say you wanted to make sure that in all the input boxes, the user has only entered numbers, so let's find all the inputs which don't match and highlight them.
$("input:text")
.filter(function() {
return this.value.match(/[^\d]/);
})
.addClass("inputError")
;
Of course if it was just something like this, you could use the form validation plugin, but this method could be applied to any sort of elements you like. Another example to show what I mean: Find all the elements whose id
matches /[a-z]+_\d+/
$("[id]").filter(function() {
return this.id.match(/[a-z]+_\d+/);
});
You need the :not()
selector:
$('div[class^="first-"]:not(.first-bar)')
or, alternatively, the .not()
method:
$('div[class^="first-"]').not('.first-bar');
Published by Microsoft in Standard Date and Time Format Strings:
dataGrid.Columns[2].DefaultCellStyle.Format = "d"; // Short date
That should format the date according to the person's location settings.
This is part of Microsoft's larger collection of Formatting Types in .NET.
Note, adding
$.support.cors = true;
was sufficient to force $.ajax calls to work on IE8
In UTC:
Instant.now().minus( 1 , ChronoUnit.HOURS )
Or, zoned:
Instant.now()
.atZone( ZoneId.of ( "America/Montreal" ) )
.minusHours( 1 )
Java 8 and later has the new java.time framework built-in.
Instant
If you only care about UTC (GMT), then use the Instant
class.
Instant instant = Instant.now ();
Instant instantHourEarlier = instant.minus ( 1 , ChronoUnit.HOURS );
Dump to console.
System.out.println ( "instant: " + instant + " | instantHourEarlier: " + instantHourEarlier );
instant: 2015-10-29T00:37:48.921Z | instantHourEarlier: 2015-10-28T23:37:48.921Z
Note how in this instant happened to skip back to yesterday’s date.
ZonedDateTime
If you care about a time zone, use the ZonedDateTime
class. You can start with an Instant and the assign a time zone, a ZoneId
object. This class handles the necessary adjustments for anomalies such as Daylight Saving Time (DST).
Instant instant = Instant.now ();
ZoneId zoneId = ZoneId.of ( "America/Montreal" );
ZonedDateTime zdt = ZonedDateTime.ofInstant ( instant , zoneId );
ZonedDateTime zdtHourEarlier = zdt.minus ( 1 , ChronoUnit.HOURS );
Dump to console.
System.out.println ( "instant: " + instant + "\nzdt: " + zdt + "\nzdtHourEarlier: " + zdtHourEarlier );
instant: 2015-10-29T00:50:30.778Z
zdt: 2015-10-28T20:50:30.778-04:00[America/Montreal]
zdtHourEarlier: 2015-10-28T19:50:30.778-04:00[America/Montreal]
The old java.util.Date/.Calendar classes are now outmoded. Avoid them. They are notoriously troublesome and confusing.
When you must use the old classes for operating with old code not yet updated for the java.time types, call the conversion methods. Here is example code going from an Instant or a ZonedDateTime to a java.util.Date.
java.util.Date date = java.util.Date.from( instant );
…or…
java.util.Date date = java.util.Date.from( zdt.toInstant() );
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
/proc/net/tcp -a list of open tcp sockets
/proc/net/udp -a list of open udp sockets
/proc/net/raw -a list all the 'raw' sockets
These are the files, use cat
command to view them. For example:
cat /proc/net/tcp
You can also use the lsof
command.
lsof is a command meaning "list open files", which is used in many Unix-like systems to report a list of all open files and the processes that opened them.
I guess you can install it via Parallel or in any other Virtual machine with windows in it
You should be using DATEADD
is Sql server so if try this simple select you will see the affect
Select DATEADD(Month, -1, getdate())
Result
2013-04-20 14:08:07.177
in your case try this query
SELECT name
FROM (
SELECT name FROM
Hist_answer
WHERE id_city='34324' AND datetime >= DATEADD(month,-1,GETDATE())
UNION ALL
SELECT name FROM
Hist_internet
WHERE id_city='34324' AND datetime >= DATEADD(month,-1,GETDATE())
) x
GROUP BY name ORDER BY name
One way is to: (Assumes index column begins at A1)
MsgBox Range("A1").End(xlDown).Row
Which is looking for the 1st unoccupied cell downwards from A1 and showing you its ordinal row number.
You can select the next empty cell with:
Range("A1").End(xlDown).Offset(1, 0).Select
If you need the end of a dataset (including blanks), try: Range("A:A").SpecialCells(xlLastCell).Row
#include<stdio.h>
#define n 3
struct body
{
double p[3];//position
double v[3];//velocity
double a[3];//acceleration
double radius;
double mass;
};
struct body bodies[n];
int main()
{
int a, b;
for(a = 0; a < n; a++)
{
for(b = 0; b < 3; b++)
{
bodies[a].p[b] = 0;
bodies[a].v[b] = 0;
bodies[a].a[b] = 0;
}
bodies[a].mass = 0;
bodies[a].radius = 1.0;
}
return 0;
}
this works fine. your question was not very clear by the way, so match the layout of your source code with the above.
In addition what others mentioned here, note that combining the Application.DispatcherUnhandledException
(and its similars) with
<configuration>
<runtime>
<legacyUnhandledExceptionPolicy enabled="1" />
</runtime>
</configuration>
in the app.config
will prevent your secondary threads exception from shutting down the application.
You can't select a sheet in a non-active workbook.
You must first activate the workbook, then you can select the sheet.
workbooks("A").activate
workbooks("A").worksheets("B").select
When you use Activate it automatically activates the workbook.
Note you can select >1 sheet in a workbook:
activeworkbook.sheets(array("sheet1","sheet3")).select
but only one sheet can be Active, and if you activate a sheet which is not part of a multi-sheet selection then those other sheets will become un-selected.
I enabled "Offline-Work" under File -> Settings ->Build,Deploy, Exec -> Gradle And this finally resolved the issue for me.
Sounds like autocomplete is being called before the library that defines it is actually loaded - if that makes sense?
If your script is inline, rather than referenced, move it to the bottom of the page. Or (my preferred option) place the script in an external .js file and then reference it:
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<script src="yourNewJSFile"></script>
Edit: if you externalise your script, ensure it is referenced AFTER any JQuery libraries it relies on :)
WAMP server generally provide addond for different php/mysql versions. However you mentioned you have downloaded latest wamp server. As of now, latest Wamp server v2.5 provide PHP version 5.5.12
So you need to upgrade it manually as follow:
Although not asked, I'd recommend to vagrant/puppet or docker for local development. Check puphpet.com for details. It has slight learning curve but it will give you much better control of different versions of every tool.
Try function eval().
data.newScript = '<script type="text/javascript">//my script...</script>'
var element = document.getElementById('elementToRefresh');
element.innerHTML = data.newScript;
eval(element.firstChild.innerHTML);
This is a real example from a project that i am developing. Thanks to this post
The use of line system("PAUSE")
will fix that problem and also include the pre processor directory #include<stdlib.h>
.
Maybe it will be helpfull for you. You could use "DirectoryInfo.EnumerateFiles" method and handle UnauthorizedAccessException as you need.
using System;
using System.IO;
class Program
{
static void Main(string[] args)
{
DirectoryInfo diTop = new DirectoryInfo(@"d:\");
try
{
foreach (var fi in diTop.EnumerateFiles())
{
try
{
// Display each file over 10 MB;
if (fi.Length > 10000000)
{
Console.WriteLine("{0}\t\t{1}", fi.FullName, fi.Length.ToString("N0"));
}
}
catch (UnauthorizedAccessException UnAuthTop)
{
Console.WriteLine("{0}", UnAuthTop.Message);
}
}
foreach (var di in diTop.EnumerateDirectories("*"))
{
try
{
foreach (var fi in di.EnumerateFiles("*", SearchOption.AllDirectories))
{
try
{
// Display each file over 10 MB;
if (fi.Length > 10000000)
{
Console.WriteLine("{0}\t\t{1}", fi.FullName, fi.Length.ToString("N0"));
}
}
catch (UnauthorizedAccessException UnAuthFile)
{
Console.WriteLine("UnAuthFile: {0}", UnAuthFile.Message);
}
}
}
catch (UnauthorizedAccessException UnAuthSubDir)
{
Console.WriteLine("UnAuthSubDir: {0}", UnAuthSubDir.Message);
}
}
}
catch (DirectoryNotFoundException DirNotFound)
{
Console.WriteLine("{0}", DirNotFound.Message);
}
catch (UnauthorizedAccessException UnAuthDir)
{
Console.WriteLine("UnAuthDir: {0}", UnAuthDir.Message);
}
catch (PathTooLongException LongPath)
{
Console.WriteLine("{0}", LongPath.Message);
}
}
}
You can use the strip() to remove trailing and leading spaces.
>>> s = ' abd cde '
>>> s.strip()
'abd cde'
Note: the internal spaces are preserved
For me, this issue was slightly different than other answers, as I was only receiving 404s on OPTIONS, yet I already had OPTIONS specifically stated in my Integrated Extensionless URL Handler options. Very confusing.
By adding the following security node to the web.config was necessary to knock that out - full system.webserver included for context:
<system.webServer>
<modules runAllManagedModulesForAllRequests="true">
<remove name="WebDAVModule" />
</modules>
<handlers>
<remove name="ExtensionlessUrlHandler-Integrated-4.0" />
<remove name="OPTIONSVerbHandler" />
<remove name="TRACEVerbHandler" />
<remove name="WebDAV" />
<add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="*" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />
</handlers>
<security>
<requestFiltering>
<verbs>
<remove verb="OPTIONS" />
</verbs>
</requestFiltering>
</security>
</system.webServer>
Although it's not the perfect answer for this question, it is the first result for "IIS OPTIONS 404" on Google, so I hope this helps someone out; cost me an hour today.
This should work:
IDTSVariables100 vars = null;
VariableDispenser.LockForRead("System::TaskName");
VariableDispenser.GetVariables(vars);
string TaskName = vars("System::TaskName").Value.ToString();
vars.Unlock();
Your initial code lacks call of the GetVariables() method.
To answer the question. stringstream
basically allows you to treat a string
object like a stream
, and use all stream
functions and operators on it.
I saw it used mainly for the formatted output/input goodness.
One good example would be c++
implementation of converting number to stream object.
Possible example:
template <class T>
string num2str(const T& num, unsigned int prec = 12) {
string ret;
stringstream ss;
ios_base::fmtflags ff = ss.flags();
ff |= ios_base::floatfield;
ff |= ios_base::fixed;
ss.flags(ff);
ss.precision(prec);
ss << num;
ret = ss.str();
return ret;
};
Maybe it's a bit complicated but it is quite complex. You create stringstream
object ss
, modify its flags, put a number into it with operator<<
, and extract it via str()
. I guess that operator>>
could be used.
Also in this example the string
buffer is hidden and not used explicitly. But it would be too long of a post to write about every possible aspect and use-case.
Note: I probably stole it from someone on SO and refined, but I don't have original author noted.
Options +FollowSymLinks
RewriteEngine On
RewriteBase /
## hide .html extension
# To externally redirect /dir/foo.html to /dir/foo
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+).html
RewriteRule ^ %1 [R=301,L]
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)/\s
RewriteRule ^ %1 [R=301,L]
## To internally redirect /dir/foo to /dir/foo.html
RewriteCond %{REQUEST_FILENAME}.html -f
RewriteRule ^([^\.]+)$ $1.html [L]
<Files ~"^.*\.([Hh][Tt][Aa])">
order allow,deny
deny from all
satisfy all
</Files>
This removes html code or php if you supplement it. Allows you to add trailing slash and it come up as well as the url without the trailing slash all bypassing the 404 code. Plus a little added security.
When I'm teaching someone programming (just about any language) I introduce for
loops with terminology similar to this code example:
for eachItem in someList:
doSomething(eachItem)
... which, conveniently enough, is syntactically valid Python code.
The Python range()
function simply returns or generates a list of integers from some lower bound (zero, by default) up to (but not including) some upper bound, possibly in increments (steps) of some other number (one, by default).
So range(5)
returns (or possibly generates) a sequence: 0, 1, 2, 3, 4 (up to but not including the upper bound).
A call to range(2,10)
would return: 2, 3, 4, 5, 6, 7, 8, 9
A call to range(2,12,3)
would return: 2, 5, 8, 11
Notice that I said, a couple times, that Python's range()
function returns or generates a sequence. This is a relatively advanced distinction which usually won't be an issue for a novice. In older versions of Python range()
built a list (allocated memory for it and populated with with values) and returned a reference to that list. This could be inefficient for large ranges which might consume quite a bit of memory and for some situations where you might want to iterate over some potentially large range of numbers but were likely to "break
" out of the loop early (after finding some particular item in which you were interested, for example).
Python supports more efficient ways of implementing the same semantics (of doing the same thing) through a programming construct called a generator. Instead of allocating and populating the entire list and return it as a static data structure, Python can instantiate an object with the requisite information (upper and lower bounds and step/increment value) ... and return a reference to that.
The (code) object then keeps track of which number it returned most recently and computes the new values until it hits the upper bound (and which point it signals the end of the sequence to the caller using an exception called "StopIteration"). This technique (computing values dynamically rather than all at once, up-front) is referred to as "lazy evaluation."
Other constructs in the language (such as those underlying the for
loop) can then work with that object (iterate through it) as though it were a list.
For most cases you don't have to know whether your version of Python is using the old implementation of range()
or the newer one based on generators. You can just use it and be happy.
If you're working with ranges of millions of items, or creating thousands of different ranges of thousands each, then you might notice a performance penalty for using range()
on an old version of Python. In such cases you could re-think your design and use while
loops, or create objects which implement the "lazy evaluation" semantics of a generator, or use the xrange()
version of range()
if your version of Python includes it, or the range()
function from a version of Python that uses the generators implicitly.
Concepts such as generators, and more general forms of lazy evaluation, permeate Python programming as you go beyond the basics. They are usually things you don't have to know for simple programming tasks but which become significant as you try to work with larger data sets or within tighter constraints (time/performance or memory bounds, for example).
[Update: for Python3 (the currently maintained versions of Python) the range()
function always returns the dynamic, "lazy evaluation" iterator; the older versions of Python (2.x) which returned a statically allocated list of integers are now officially obsolete (after years of having been deprecated)].
I use this:
use YourDB;
SELECT
object_name(object_id),
last_execution_time,
last_elapsed_time,
execution_count
FROM
sys.dm_exec_procedure_stats ps
where
lower(object_name(object_id)) like 'Appl-Name%'
order by 1
Try this:
SELECT @@VERSION[server], SERVERPROPERTY('productversion'), SERVERPROPERTY ('productlevel'), SERVERPROPERTY ('edition')
You can do use
$(dialogElement).empty();
$(dialogElement).remove();
Yep.
// FakeChart.cs
// ------------------------------------------------------------------
//
// A Winforms app that produces a contrived chart using
// DataVisualization (MSChart). Requires .net 4.0.
//
// Author: Dino
//
// ------------------------------------------------------------------
//
// compile: \net4.0\csc.exe /t:winexe /debug+ /R:\net4.0\System.Windows.Forms.DataVisualization.dll FakeChart.cs
//
using System;
using System.Windows.Forms;
using System.Windows.Forms.DataVisualization.Charting;
namespace Dino.Tools.WebMonitor
{
public class FakeChartForm1 : Form
{
private System.ComponentModel.IContainer components = null;
System.Windows.Forms.DataVisualization.Charting.Chart chart1;
public FakeChartForm1 ()
{
InitializeComponent();
}
private double f(int i)
{
var f1 = 59894 - (8128 * i) + (262 * i * i) - (1.6 * i * i * i);
return f1;
}
private void Form1_Load(object sender, EventArgs e)
{
chart1.Series.Clear();
var series1 = new System.Windows.Forms.DataVisualization.Charting.Series
{
Name = "Series1",
Color = System.Drawing.Color.Green,
IsVisibleInLegend = false,
IsXValueIndexed = true,
ChartType = SeriesChartType.Line
};
this.chart1.Series.Add(series1);
for (int i=0; i < 100; i++)
{
series1.Points.AddXY(i, f(i));
}
chart1.Invalidate();
}
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
System.Windows.Forms.DataVisualization.Charting.ChartArea chartArea1 = new System.Windows.Forms.DataVisualization.Charting.ChartArea();
System.Windows.Forms.DataVisualization.Charting.Legend legend1 = new System.Windows.Forms.DataVisualization.Charting.Legend();
this.chart1 = new System.Windows.Forms.DataVisualization.Charting.Chart();
((System.ComponentModel.ISupportInitialize)(this.chart1)).BeginInit();
this.SuspendLayout();
//
// chart1
//
chartArea1.Name = "ChartArea1";
this.chart1.ChartAreas.Add(chartArea1);
this.chart1.Dock = System.Windows.Forms.DockStyle.Fill;
legend1.Name = "Legend1";
this.chart1.Legends.Add(legend1);
this.chart1.Location = new System.Drawing.Point(0, 50);
this.chart1.Name = "chart1";
// this.chart1.Size = new System.Drawing.Size(284, 212);
this.chart1.TabIndex = 0;
this.chart1.Text = "chart1";
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(284, 262);
this.Controls.Add(this.chart1);
this.Name = "Form1";
this.Text = "FakeChart";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.chart1)).EndInit();
this.ResumeLayout(false);
}
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new FakeChartForm1());
}
}
}
UI:
Cookies are used to identify sessions. Visit any site that is using cookies and pull up either Chrome inspect element and then network or FireBug if using Firefox.
You can see that there is a header sent to a server and also received called Cookie. Usually it contains some personal information (like an ID) that can be used on the server to identify a session. These cookies stay on your computer and your browser takes care of sending them to only the domains that are identified with it.
If there were no cookies then you would be sending a unique ID on every request via GET or POST. Cookies are like static id's that stay on your computer for some time.
A session is a group of information on the server that is associated with the cookie information. If you're using PHP you can check the session.save_path location and actually "see sessions". They are either files on the server filesystem or backed in a database.
You can use styles for modifiy the login button like this
<style name="FacebookLoginButton">
<item name="android:textSize">@dimen/smallTxtSize</item>
<item name="android:background">@drawable/facebook_signin_btn</item>
<item name="android:layout_marginTop">10dp</item>
<item name="android:layout_marginBottom">10dp</item>
<item name="android:layout_gravity">center_horizontal</item>
</style>
and in layout
<com.facebook.widget.LoginButton
xmlns:fb="http://schemas.android.com/apk/res-auto"
android:id="@+id/loginFacebookButton"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
fb:login_text="@string/loginFacebookButton"
fb:logout_text=""
style="@style/FacebookLoginButton"/>
Apple released code at WWDC as a category on UIImage that includes this functionality, if you have a developer account you can grab the UIImage category (and the rest of the sample code) by going to this link: https://developer.apple.com/wwdc/schedule/ and browsing for section 226 and clicking on details. I haven't played around with it yet but I think the effect will be a lot slower on iOS 6, there are some enhancements to iOS 7 that make grabbing the initial screen shot that is used as input to the blur a lot faster.
Direct link: https://developer.apple.com/downloads/download.action?path=wwdc_2013/wwdc_2013_sample_code/ios_uiimageeffects.zip
The del
keyword would do.
>>> a=1
>>> a
1
>>> del a
>>> a
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
NameError: name 'a' is not defined
But in this case I vote for self.left = None
For me to make it work again I just deleted the files
ib_logfile0
and
ib_logfile1
.
from :
/Applications/MAMP/db/mysql56/ib_logfile0
Mac 10.13.3
MAMP:Version 4.3 (853)
Assuming t1 is the folder with files in it, and t2 is the empty directory. What you want is something like this:
sudo cp -R t1/* t2/
Bear in mind, for the first example, t1 and t2 have to be the full paths, or relative paths (based on where you are). If you want, you can navigate to the empty folder (t2) and do this:
sudo cp -R t1/* ./
Or you can navigate to the folder with files (t1) and do this:
sudo cp -R ./* t2/
Note: The * sign (or wildcard) stands for all files and folders. The -R flag means recursively (everything inside everything).
EDIT: The below answer no longer works see here
Google Chrome cache file format description.
Cache files list, see URLs (copy and paste to your browser address bar):
chrome://cache/
chrome://view-http-cache/
Cache folder in Linux: $~/.cache/google-chrome/Default/Cache
Let's determine in file GZIP encoding:
$ head f84358af102b1064_0 | hexdump -C | grep --before-context=100 --after-context=5 "1f 8b 08"
Extract Chrome cache file by one line on PHP (without header, CRC32 and ISIZE block):
$ php -r "echo gzinflate(substr(strchr(file_get_contents('f84358af102b1064_0'), \"\x1f\x8b\x08\"), 10,
-8));"
Multiple $(document).ready()
will fire in order top down on the page. The last $(document).ready()
will fire last on the page. Inside the last $(document).ready()
, you can trigger a new custom event to fire after all the others..
Wrap your code in an event handler for the new custom event.
<html>
<head>
<script>
$(document).on("my-event-afterLastDocumentReady", function () {
// Fires LAST
});
$(document).ready(function() {
// Fires FIRST
});
$(document).ready(function() {
// Fires SECOND
});
$(document).ready(function() {
// Fires THIRD
});
</script>
<body>
... other code, scripts, etc....
</body>
</html>
<script>
$(document).ready(function() {
// Fires FOURTH
// This event will fire after all the other $(document).ready() functions have completed.
// Usefull when your script is at the top of the page, but you need it run last
$(document).trigger("my-event-afterLastDocumentReady");
});
</script>
I have used in my many projects and never got any single issue :)
for your reference, Code are in snippet
* {_x000D_
margin: 0;_x000D_
}_x000D_
html, body {_x000D_
height: 100%;_x000D_
}_x000D_
.wrapper {_x000D_
min-height: 100%;_x000D_
height: auto !important; /* This line and the next line are not necessary unless you need IE6 support */_x000D_
height: 100%;_x000D_
margin: 0 auto -50px; /* the bottom margin is the negative value of the footer's height */_x000D_
background:green;_x000D_
}_x000D_
.footer, .push {_x000D_
height: 50px; /* .push must be the same height as .footer */_x000D_
}_x000D_
_x000D_
.footer{_x000D_
background:gold;_x000D_
}
_x000D_
<html>_x000D_
<head>_x000D_
<meta charset="utf-8">_x000D_
<title>Untitled Document</title>_x000D_
</head>_x000D_
_x000D_
<body>_x000D_
<div class="wrapper">_x000D_
Content Area_x000D_
</div>_x000D_
_x000D_
<div class="push">_x000D_
</div>_x000D_
_x000D_
<div class="footer">_x000D_
Footer Area_x000D_
</div>_x000D_
</body>_x000D_
</html>
_x000D_
In my case, it was a project I had upgraded the test project from an earlier .NET version. in the app.config I had assemblybindings to previous versions of the dependant assemblies.
After fixing the assembnlybindings in the app.config, my tests got discovered.
A javascript Object does not have a standard .each function. jQuery provides a function. See http://api.jquery.com/jQuery.each/ The below should work
$.each(object, function(index, value) {
console.log(value);
});
Another option would be to use vanilla Javascript using the Object.keys()
and the Array .map()
functions like this
Object.keys(object).map(function(objectKey, index) {
var value = object[objectKey];
console.log(value);
});
See https://developer.mozilla.org/nl/docs/Web/JavaScript/Reference/Global_Objects/Object/keys and https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map
These are usually better than using a vanilla Javascript for-loop, unless you really understand the implications of using a normal for-loop and see use for it's specific characteristics like looping over the property chain.
But usually, a for-loop doesn't work better than jQuery
or Object.keys().map()
. I'll go into two potential issues with using a plain for-loop below.
Right, so also pointed out in other answers, a plain Javascript alternative would be
for(var index in object) {
var attr = object[index];
}
There are two potential issues with this:
1 . You want to check whether the attribute that you are finding is from the object itself and not from up the prototype chain. This can be checked with the hasOwnProperty
function like so
for(var index in object) {
if (object.hasOwnProperty(index)) {
var attr = object[index];
}
}
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/hasOwnProperty for more information.
The jQuery.each
and Object.keys
functions take care of this automatically.
2 . Another potential issue with a plain for-loop is that of scope and non-closures. This is a bit complicated, but take for example the following code. We have a bunch of buttons with ids button0, button1, button2 etc, and we want to set an onclick on them and do a console.log
like this:
<button id='button0'>click</button>
<button id='button1'>click</button>
<button id='button2'>click</button>
var messagesByButtonId = {"button0" : "clicked first!", "button1" : "clicked middle!", "button2" : "clicked last!"];
for(var buttonId in messagesByButtonId ) {
if (messagesByButtonId.hasOwnProperty(buttonId)) {
$('#'+buttonId).click(function() {
var message = messagesByButtonId[buttonId];
console.log(message);
});
}
}
If, after some time, we click any of the buttons we will always get "clicked last!" in the console, and never "clicked first!" or "clicked middle!". Why? Because at the time that the onclick function is executed, it will display messagesByButtonId[buttonId]
using the buttonId
variable at that moment. And since the loop has finished at that moment, the buttonId
variable will still be "button2" (the value it had during the last loop iteration), and so messagesByButtonId[buttonId]
will be messagesByButtonId["button2"]
, i.e. "clicked last!".
See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Closures for more information on closures. Especially the last part of that page that covers our example.
Again, jQuery.each
and Object.keys().map()
solve this problem automatically for us, because it provides us with a function(index, value)
(that has closure) so we are safe to use both index and value and rest assured that they have the value that we expect.
You need to change your code to find the row relative to the button which was clicked. Try this:
$(".use-address").click(function() {
var id = $(this).closest("tr").find(".nr").text();
$("#resultas").append(id);
});
IF the array is associative and keyed correctly, it would probably be easier to turn it into xml first. Something like:
function array2xml ($array_item) {
$xml = '';
foreach($array_item as $element => $value)
{
if (is_array($value))
{
$xml .= "<$element>".array2xml($value)."</$element>";
}
elseif($value == '')
{
$xml .= "<$element />";
}
else
{
$xml .= "<$element>".htmlentities($value)."</$element>";
}
}
return $xml;
}
$simple_xml = simplexml_load_string(array2xml($assoc_array));
The other route would be to create your basic xml first, like
$simple_xml = simplexml_load_string("<array></array>");
and then for each part of your array, use something similar to my text creating loop and instead use the simplexml functions "addChild" for each node of the array.
I'll try that out later and update this post with both versions.
foreach( $codes as $code and $names as $name ) { }
That is not valid.
You probably want something like this...
foreach( $codes as $index => $code ) {
echo '<option value="' . $code . '">' . $names[$index] . '</option>';
}
Alternatively, it'd be much easier to make the codes the key of your $names
array...
$names = array(
'tn' => 'Tunisia',
'us' => 'United States',
...
);
All the responses here have been way too complex. You know that the first of the current month is the current date but with 01 as the date. You can just use YEAR() and MONTH() to build the month date by inputting the NOW() method. Here's the solution:
select * from table_name
where date between CONCAT_WS('-', YEAR( NOW() ), MONTH( NOW() ), '01') and DATE( NOW() )
CONCAT_WS() joins a series of strings with a separator (a dash in this case). So if today is 2020-08-28, YEAR( NOW() ) = '2020' and MONTH( NOW() ) = '08' and then you just need to append '01' at the end.
Voila!