int c;
String raw = "";
do {
c = inputstream.read();
raw+=(char)c;
} while(inputstream.available()>0);
InputStream.available() shows the available bytes only after one byte is read, hence do .. while
The port is already being used by some other process as @Diego Pino said u can use lsof on unix to locate the process and kill the respective one, if you are on windows use netstat -ano to get all the pids of the process and the ports that everyone acquires. search for your intended port and kill.
to be very easy just restart your machine , if thats possible :)
Use references all the time and pointers only when you have to refer to NULL
which reference cannot refer.
See this FAQ : http://www.parashift.com/c++-faq-lite/references.html#faq-8.6
The style attribute for the menu background is android:panelFullBackground
.
Despite what the documentation says, it needs to be a resource (e.g. @android:color/black
or @drawable/my_drawable
), it will crash if you use a color value directly.
This will also get rid of the item borders that I was unable to change or remove using primalpop's solution.
As for the text color, I haven't found any way to set it through styles in 2.2 and I'm sure I've tried everything (which is how I discovered the menu background attribute). You would need to use primalpop's solution for that.
declare @sql varchar(100);
declare @tablename as varchar(100);
select @tablename = 'your_table_name';
create table #tmp
(col1 int, col2 int, col3 int);
set @sql = 'select aa, bb, cc from ' + @tablename;
insert into #tmp(col1, col2, col3) exec( @sql );
select * from #tmp;
Create Handler outside the Thread
final Handler handler = new Handler();
new Thread(new Runnable() {
@Override
public void run() {
try{
handler.post(new Runnable() {
@Override
public void run() {
showAlertDialog(p.getProviderName(), Token, p.getProviderId(), Amount);
}
});
}
}
catch (Exception e){
Log.d("ProvidersNullExp", e.getMessage());
}
}
}).start();
If you have multiple projects in your git repo, .idea/workspace.xml
will not match to any files.
Instead, do the following:
$ git rm -f **/.idea/workspace.xml
And make your .gitignore look something like this:
# User-specific stuff:
**/.idea/workspace.xml
**/.idea/tasks.xml
**/.idea/dictionaries
**/.idea/vcs.xml
**/.idea/jsLibraryMappings.xml
# Sensitive or high-churn files:
**/.idea/dataSources.ids
**/.idea/dataSources.xml
**/.idea/dataSources.local.xml
**/.idea/sqlDataSources.xml
**/.idea/dynamic.xml
**/.idea/uiDesigner.xml
## File-based project format:
*.iws
# IntelliJ
/out/
I wrote rabbitmq-dump-queue which allows dumping messages from a RabbitMQ queue to local files and requeuing the messages in their original order.
Example usage (to dump the first 50 messages of queue incoming_1
):
rabbitmq-dump-queue -url="amqp://user:[email protected]:5672/" -queue=incoming_1 -max-messages=50 -output-dir=/tmp
I believe that phrase should have been worded as follows:
bcrypt has salts built into the generated hashes to prevent rainbow table attacks.
The bcrypt
utility itself does not appear to maintain a list of salts. Rather, salts are generated randomly and appended to the output of the function so that they are remembered later on (according to the Java implementation of bcrypt
). Put another way, the "hash" generated by bcrypt
is not just the hash. Rather, it is the hash and the salt concatenated.
<p style="font-weight:bold;"></p>
Add a Button
and on click of the Button
add this code:
Intent sharingIntent = new Intent(android.content.Intent.ACTION_SEND);
sharingIntent.setType("text/plain");
String shareBody = "Here is the share content body";
sharingIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, "Subject Here");
sharingIntent.putExtra(android.content.Intent.EXTRA_TEXT, shareBody);
startActivity(Intent.createChooser(sharingIntent, "Share via"));
Useful links:
I encountered this error working in Talend. I was able to store S3 CSV files created from Redshift without a problem. The error occurred when I was trying to load the same S3 CSV files into an Amazon RDS MySQL database. I tried the default timestamp Talend timestamp formats but they were throwing exception:unparseable date when loading into MySQL.
This from the accepted answer helped me solve this problem:
By the way, the "unparseable date" exception can here only be thrown by SimpleDateFormat#parse(). This means that the inputDate isn't in the expected pattern "yyyy-MM-dd HH:mm:ss z". You'll probably need to modify the pattern to match the inputDate's actual pattern
The key to my solution was changing the Talend schema. Talend set the timestamp field to "date" so I changed it to "timestamp" then I inserted "yyyy-MM-dd HH:mm:ss z" into the format string column view a screenshot here talend schema
I had other issues with 12 hour and 24 hour timestamp translations until I added the "z" at the end of the timestamp string.
Just use
del /f /q C:\Users\%username%\AppData\Local\temp
And it will work.
Note: It will delete the whole folder however, Windows will remake it as it needs.
Exception clearly indicates the problem.
CompteDAOHib: No default constructor found
For spring to instantiate your bean, you need to provide a empty constructor for your class CompteDAOHib
.
The Hashtable class is a specific type of dictionary class that uses an integer value (called a hash) to aid in the storage of its keys. The Hashtable class uses the hash to speed up the searching for a specific key in the collection. Every object in .NET derives from the Object class. This class supports the GetHash method, which returns an integer that uniquely identifies the object. The Hashtable class is a very efficient collection in general. The only issue with the Hashtable class is that it requires a bit of overhead, and for small collections (fewer than ten elements) the overhead can impede performance.
There is Some special difference between two which must be considered:
HashTable: is non-generic collection ,the biggest overhead of this collection is that it does boxing automatically for your values and in order to get your original value you need to perform unboxing , these to decrease your application performance as penalty.
Dictionary: This is generic type of collection where no implicit boxing, so no need to unboxing you will always get your original values which you were stored so it will improve your application performance.
the Second Considerable difference is:
if your were trying to access a value on from hash table on the basis of key that does not exist it will return null.But in the case of Dictionary it will give you KeyNotFoundException.
I have a slightly different way of doing this than the accepted answer. This way you can avoid using GROUP_CONCAT which has a limit of 1024 characters and will not work if you have a lot of fields.
SET @sql = '';
SELECT
@sql := CONCAT(@sql,if(@sql='','',', '),temp.output)
FROM
(
SELECT
DISTINCT
CONCAT(
'MAX(IF(pa.fieldname = ''',
fieldname,
''', pa.fieldvalue, NULL)) AS ',
fieldname
) as output
FROM
product_additional
) as temp;
SET @sql = CONCAT('SELECT p.id
, p.name
, p.description, ', @sql, '
FROM product p
LEFT JOIN product_additional AS pa
ON p.id = pa.id
GROUP BY p.id');
PREPARE stmt FROM @sql;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
Incorrect usage.
Input type number it's made to have selectable value via arrows up and down.
So basically you are looking for "width" CSS style.
Input text historically is formatted with monospaced font, so size it's also the width it takes.
Input number it's new and "size" property has no sense at all*. A typical usage:
<input type="number" name="quantity" min="1" max="5">
to fix, add a style:
<input type="number" name="email" style="width: 7em">
EDIT: if you want a range, you have to set type="range"
and not ="number"
EDIT2: *size is not an allowed value (so, no sense). Check out official W3C specifications
Note: The size attribute works with the following input types: text, search, tel, url, email, and password.
Tip: To specify the maximum number of characters allowed in the element, use the maxlength attribute.
fill_parent
will make the width or height of the element to be as
large as the parent element, in other words, the container.
wrap_content
will make the width or height be as large as needed to
contain the elements within it.
git log --full-history -- your_file
will show you all commits in your repo's history, including merge commits, that touched your_file
. The last (top) one is the one that deleted the file.
The --full-history
flag here is important. Without it, Git performs "history simplification" when you ask it for the log of a file. The docs are light on details about exactly how this works and I lack the grit and courage required to try to figure it out from the source code, but the git-log docs have this much to say:
Default mode
Simplifies the history to the simplest history explaining the final state of the tree. Simplest because it prunes some side branches if the end result is the same (i.e. merging branches with the same content)
This is obviously concerning when the file whose history we want is deleted, since the simplest history explaining the final state of a deleted file is no history. Is there a risk that git log
without --full-history
will simply claim that the file was never created? Unfortunately, yes. Here's a demonstration:
mark@lunchbox:~/example$ git init
Initialised empty Git repository in /home/mark/example/.git/
mark@lunchbox:~/example$ touch foo && git add foo && git commit -m "Added foo"
[master (root-commit) ddff7a7] Added foo
1 file changed, 0 insertions(+), 0 deletions(-)
create mode 100644 foo
mark@lunchbox:~/example$ git checkout -b newbranch
Switched to a new branch 'newbranch'
mark@lunchbox:~/example$ touch bar && git add bar && git commit -m "Added bar"
[newbranch 7f9299a] Added bar
1 file changed, 0 insertions(+), 0 deletions(-)
create mode 100644 bar
mark@lunchbox:~/example$ git checkout master
Switched to branch 'master'
mark@lunchbox:~/example$ git rm foo && git commit -m "Deleted foo"
rm 'foo'
[master 7740344] Deleted foo
1 file changed, 0 insertions(+), 0 deletions(-)
delete mode 100644 foo
mark@lunchbox:~/example$ git checkout newbranch
Switched to branch 'newbranch'
mark@lunchbox:~/example$ git rm bar && git commit -m "Deleted bar"
rm 'bar'
[newbranch 873ed35] Deleted bar
1 file changed, 0 insertions(+), 0 deletions(-)
delete mode 100644 bar
mark@lunchbox:~/example$ git checkout master
Switched to branch 'master'
mark@lunchbox:~/example$ git merge newbranch
Already up-to-date!
Merge made by the 'recursive' strategy.
mark@lunchbox:~/example$ git log -- foo
commit 77403443a13a93073289f95a782307b1ebc21162
Author: Mark Amery
Date: Tue Jan 12 22:50:50 2016 +0000
Deleted foo
commit ddff7a78068aefb7a4d19c82e718099cf57be694
Author: Mark Amery
Date: Tue Jan 12 22:50:19 2016 +0000
Added foo
mark@lunchbox:~/example$ git log -- bar
mark@lunchbox:~/example$ git log --full-history -- foo
commit 2463e56a21e8ee529a59b63f2c6fcc9914a2b37c
Merge: 7740344 873ed35
Author: Mark Amery
Date: Tue Jan 12 22:51:36 2016 +0000
Merge branch 'newbranch'
commit 77403443a13a93073289f95a782307b1ebc21162
Author: Mark Amery
Date: Tue Jan 12 22:50:50 2016 +0000
Deleted foo
commit ddff7a78068aefb7a4d19c82e718099cf57be694
Author: Mark Amery
Date: Tue Jan 12 22:50:19 2016 +0000
Added foo
mark@lunchbox:~/example$ git log --full-history -- bar
commit 873ed352c5e0f296b26d1582b3b0b2d99e40d37c
Author: Mark Amery
Date: Tue Jan 12 22:51:29 2016 +0000
Deleted bar
commit 7f9299a80cc9114bf9f415e1e9a849f5d02f94ec
Author: Mark Amery
Date: Tue Jan 12 22:50:38 2016 +0000
Added bar
Notice how git log -- bar
in the terminal dump above resulted in literally no output; Git is "simplifying" history down into a fiction where bar
never existed. git log --full-history -- bar
, on the other hand, gives us the commit that created bar
and the commit that deleted it.
To be clear: this issue isn't merely theoretical. I only looked into the docs and discovered the --full-history
flag because git log -- some_file
was failing for me in a real repository where I was trying to track a deleted file down. History simplification might sometimes be helpful when you're trying to understand how a currently-existing file came to be in its current state, but when trying to track down a file deletion it's more likely to screw you over by hiding the commit you care about. Always use the --full-history
flag for this use case.
If you can't just use filter join but need to perform some operations on the array's entry:
{% for entry in array %}
User {{ entry.attribute1 }} has id {{ entry.attribute2 }}
{% if not loop.last %}, {% endif %}
{% endfor %}
The key attribute is align-self: center
:
.container {_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
}_x000D_
_x000D_
img {_x000D_
max-width: 100%;_x000D_
}_x000D_
_x000D_
img.align-self {_x000D_
align-self: center;_x000D_
}
_x000D_
<div class="container">_x000D_
<p>Without align-self:</p>_x000D_
<img src="http://i.imgur.com/NFBYJ3hs.jpg" />_x000D_
<p>With align-self:</p>_x000D_
<img class="align-self" src="http://i.imgur.com/NFBYJ3hs.jpg" />_x000D_
</div>
_x000D_
The following SQL lists all object dependencies across all databases and servers:
IF(OBJECT_ID('tempdb..#Obj_Dep_Details') IS NOT NULL)
BEGIN
DROP TABLE #Obj_Dep_Details
END
CREATE TABLE #Obj_Dep_Details
(
[Database] nvarchar(128)
,[Schema] nvarchar(128)
,dependent_object nvarchar(128)
,dependent_object_type nvarchar(60)
,referenced_server_name nvarchar(128)
,referenced_database_name nvarchar(128)
,referenced_schema_name nvarchar(128)
,referenced_entity_name nvarchar(128)
,referenced_id int
,referenced_object_db nvarchar(128)
,referenced_object_type nvarchar(60)
,referencing_id int
,SchemaDep nvarchar(128)
)
EXEC sp_MSForEachDB @command1='USE [?];
INSERT INTO #Obj_Dep_Details
SELECT DISTINCT
DB_NAME() AS [Database]
,SCHEMA_NAME(od.[schema_id]) AS [Schema]
,OBJECT_NAME(d1.referencing_id) AS dependent_object
,od.[type_desc] AS dependent_object_type
,COALESCE(d1.referenced_server_name, @@SERVERNAME) AS referenced_server_name
,COALESCE(d1.referenced_database_name, DB_NAME()) AS referenced_database_name
,COALESCE(d1.referenced_schema_name, SCHEMA_NAME(ro.[schema_id])) AS referenced_schema_name
,d1.referenced_entity_name
,d1.referenced_id
,DB_NAME(ro.parent_object_id) AS referenced_object_db
,ro.[type_desc] AS referenced_object_type
,d1.referencing_id
,SCHEMA_NAME(od.[schema_id]) AS SchemaDep
FROM sys.sql_expression_dependencies d1
LEFT OUTER JOIN sys.all_objects od
ON d1.referencing_id = od.[object_id]
LEFT OUTER JOIN sys.objects ro
ON d1.referenced_id = ro.[object_id]'
SELECT [Database] AS [Dep_Object_DB]
,[Schema] AS [Dep_Object_Schema]
,dependent_object AS [Dep_Object_Name]
,LOWER(REPLACE(dependent_object_type, '_', ' ')) AS [Dep_Object_Type]
,referenced_server_name AS [Ref_Object_Server_Name]
,referenced_database_name AS [Ref_Object_DB]
,referenced_schema_name AS [Ref_Object_Schema]
,referenced_entity_name AS [Ref_Object_Name]
,referenced_id AS [Ref_Object_ID]
,LOWER(REPLACE(referenced_object_type, '_', ' ')) AS [Ref_Object_Type]
,referencing_id AS [Dep_Object_ID]
FROM #Obj_Dep_Details WITH(NOLOCK)
WHERE referenced_entity_name = 'TableName'
ORDER BY [Dep_Object_DB]
,[Dep_Object_Name]
,[Ref_Object_Name]
,[Ref_Object_DB]
NEW_VAR=""
if [[ ${ENV_VAR} && ${ENV_VAR-x} ]]; then
NEW_VAR=${ENV_VAR}
else
NEW_VAR="new value"
fi
Swift 5:
extension UIImage {
func withAlphaComponent(_ alpha: CGFloat) -> UIImage? {
UIGraphicsBeginImageContextWithOptions(size, false, scale)
defer { UIGraphicsEndImageContext() }
draw(at: .zero, blendMode: .normal, alpha: alpha)
return UIGraphicsGetImageFromCurrentImageContext()
}
}
For any other persons, that may develop this issue. You could also check that the component
method in React.Component
is capitalized. I had that same issue and what caused it was that I wrote:
class Main extends React.component {
//class definition
}
I changed it to
class Main extends React.Component {
//class definition
}
and everything worked well
HTML/JSP Markup:
<form:option
data-libelle="${compte.libelleCompte}"
data-raison="${compte.libelleSociale}" data-rib="${compte.numeroCompte}" <c:out value="${compte.libelleCompte} *MAD*"/>
</form:option>
JQUERY CODE: Event: change
var $this = $(this);
var $selectedOption = $this.find('option:selected');
var libelle = $selectedOption.data('libelle');
To have a element libelle.val() or libelle.text()
Create a serialization surrogate.
Example, you have a class with public property of type Dictionary.
To support Xml serialization of this type, create a generic key-value class:
public class SerializeableKeyValue<T1,T2>
{
public T1 Key { get; set; }
public T2 Value { get; set; }
}
Add an XmlIgnore attribute to your original property:
[XmlIgnore]
public Dictionary<int, string> SearchCategories { get; set; }
Expose a public property of array type, that holds an array of SerializableKeyValue instances, which are used to serialize and deserialize into the SearchCategories property:
public SerializeableKeyValue<int, string>[] SearchCategoriesSerializable
{
get
{
var list = new List<SerializeableKeyValue<int, string>>();
if (SearchCategories != null)
{
list.AddRange(SearchCategories.Keys.Select(key => new SerializeableKeyValue<int, string>() {Key = key, Value = SearchCategories[key]}));
}
return list.ToArray();
}
set
{
SearchCategories = new Dictionary<int, string>();
foreach (var item in value)
{
SearchCategories.Add( item.Key, item.Value );
}
}
}
While these answers are good, IMHO I don't think they fully address the question.
The target attribute in an anchor tag tells the browser the target of the destination of the anchor. They were initially created in order to manipulate and direct anchors to the frame system of document. This was well before CSS came to the aid of HTML developers.
While target="_self"
is default by browser and the most common target is target="_blank"
which opens the anchor in a new window(which has been redirected to tabs by browser settings usually). The "_parent"
, "_top"
and framename
tags are left a mystery to those that aren't familiar with the days of iframe site building as the trend.
target="_self"
This opens an anchor in the same frame. What is confusing is that because we generally don't write in frames anymore (and the frame
and frameset
tags are obsolete in HTML5) people assume this a same window function. Instead if this anchor was nested in frames it would open in a sandbox mode of sorts, meaning only in that frame.
target="_parent"
Will open the in the next level up of a frame if they were nested to inside one another
target="_top"
This breaks outside of all the frames it is nested in and opens the link as top document in the browser window.
target="framename
This was originally deprecated but brought back in HTML5. This will target the exact frame in question. While the name
was the proper method that method has been replaced with using the id
identifying tag.
<!--Example:-->
<html>
<head>
</head>
<body>
<iframe src="url1" name="A"><p> This my first iframe</p></iframe>
<iframe src="url2" name="B"><p> This my second iframe</p></iframe>
<iframe src="url3" name="C"><p> This my third iframe</p></iframe>
<a href="url4" target="B"></a>
</body>
</html>
Solved the problem - PHPMailer - SMTP ERROR: Password command failed when send mail from my server
require_once('class.phpmailer.php');
include("class.smtp.php");
$nameField = $_POST['name'];
$emailField = $_POST['email'];
$messageField = $_POST['message'];
$phoneField = $_POST['contactno'];
$cityField = $_POST['city'];
$mail = new PHPMailer(true); // the true param means it will throw exceptions on errors, which we need to catch
$mail->IsSMTP(); // telling the class to use SMTP
$body .= $nameField;
try {
//$mail->Host = "mail.gmail.com"; // SMTP server
$mail->SMTPDebug = 2; // enables SMTP debug information (for testing)
$mail->SMTPAuth = true; // enable SMTP authentication
$mail->SMTPSecure = "ssl"; // sets the prefix to the servier
$mail->Host = "smtp.gmail.com"; // sets GMAIL as the SMTP server
$mail->Port = 465; // set the SMTP port for the GMAIL server
$mail->SMTPKeepAlive = true;
$mail->Mailer = "smtp";
$mail->Username = "[email protected]"; // GMAIL username
$mail->Password = "********"; // GMAIL password
$mail->AddAddress('[email protected]', 'abc');
$mail->SetFrom('[email protected]', 'def');
$mail->Subject = 'PHPMailer Test Subject via mail(), advanced';
$mail->AltBody = 'To view the message, please use an HTML compatible email viewer!'; // optional - MsgHTML will create an alternate automatically
$mail->MsgHTML($body);
$mail->Send();
echo "Message Sent OK</p>\n";
header("location: ../test.html");
} catch (phpmailerException $e) {
echo $e->errorMessage(); //Pretty error messages from PHPMailer
} catch (Exception $e) {
echo $e->getMessage(); //Boring error messages from anything else!
}
Important:
Go to google Setting and do 'less secure' applications enables. It will work. It Worked for Me.
To illustrate the many excellent explanations, I developed the following console app:
using System;
using System.Collections.Generic;
namespace CSharpDemos
{
class Program
{
static void Main(string[] args)
{
List<string> StringList = new List<string> { "Hello" };
List<string> StringListRef = new List<string> { "Hallo" };
AppendWorld(StringList);
Console.WriteLine(StringList[0] + StringList[1]);
HalloWelt(ref StringListRef);
Console.WriteLine(StringListRef[0] + StringListRef[1]);
CiaoMondo(out List<string> StringListOut);
Console.WriteLine(StringListOut[0] + StringListOut[1]);
}
static void AppendWorld(List<string> LiStri)
{
LiStri.Add(" World!");
LiStri = new List<string> { "¡Hola", " Mundo!" };
Console.WriteLine(LiStri[0] + LiStri[1]);
}
static void HalloWelt(ref List<string> LiStriRef)
{ LiStriRef = new List<string> { LiStriRef[0], " Welt!" }; }
static void CiaoMondo(out List<string> LiStriOut)
{ LiStriOut = new List<string> { "Ciao", " Mondo!" }; }
}
}
/*Output:
¡Hola Mundo!
Hello World!
Hallo Welt!
Ciao Mondo!
*/
AppendWorld
: A copy of StringList
named LiStri
is passed. At the
start of the method, this copy references the original list and
therefore can be used to modify this list. Later LiStri
references
another List<string>
object inside the method which doesn't affect
the original list.
HalloWelt
: LiStriRef
is an alias of the already initialized
ListStringRef
. The passed List<string>
object is used to initialize a
new one, therefore ref
was necessary.
CiaoMondo
: LiStriOut
is an alias of ListStringOut
and must be
initialized.
So, if a method just modifies the object referenced by the passed variable, the compiler will not let you use out
and you should not use ref
because it would confuse not the compiler but the reader of the code. If the method will make the passed argument reference another object, use ref
for an already initialized object and out
for methods that must initialize a new object for the passed argument. Besides that, ref
and out
behave the same.
First, add @ServletComponentScan
to your SpringBootApplication class.
@ServletComponentScan
public class Application {
Second, create a filter file extending Filter or third-party filter class and add @WebFilter
to this file like this:
@Order(1) //optional
@WebFilter(filterName = "XXXFilter", urlPatterns = "/*",
dispatcherTypes = {DispatcherType.REQUEST, DispatcherType.FORWARD},
initParams = {@WebInitParam(name = "confPath", value = "classpath:/xxx.xml")})
public class XXXFilter extends Filter{
Writing and Reading file content
def writeTempFile(text = ''):
filePath = "/temp/file1.txt"
if not text: # If blank return file content
f = open(filePath, "r")
slug = f.read()
return slug
else:
f = open(filePath, "a") # Create a blank file
f.seek(0) # sets point at the beginning of the file
f.truncate() # Clear previous content
f.write(text) # Write file
f.close() # Close file
return text
It Worked for me
There is also an easy way for copying via the clipboard:
IMHO, the most frustrating experience comes from getting / setting a value of a specific scope related to an visual element. I did a lot of breakpoints not only in my own code, but also in angular.js itself, but sometimes it is simply not the most effective way. Although the methods below are very powerful, they are definitely considered to be bad practice if you actually use in production code, so use them wisely!
In many non-IE browsers, you can select an element by right clicking an element and clicking "Inspect Element". Alternatively you can also click on any element in Elements tab in Chrome, for example. The latest selected element will be stored in variable $0
in console.
Depending on whether there exists a directive that creates an isolate scope, you can retrieve the scope by angular.element($0).scope()
or angular.element($0).isolateScope()
(use $($0).scope()
if $ is enabled). This is exactly what you get when you are using the latest version of Batarang. If you are changing the value directly, remember to use scope.$digest()
to reflect the changes on UI.
Not necessarily for debugging. scope.$eval(expression)
is very handy when you want to quickly check whether an expression has the expected value.
The difference between scope.bla
and scope.$eval('bla')
is the former does not consider the prototypically inherited values. Use the snippet below to get the whole picture (you cannot directly change the value, but you can use $eval
anyway!)
scopeCopy = function (scope) {
var a = {};
for (x in scope){
if (scope.hasOwnProperty(x) &&
x.substring(0,1) !== '$' &&
x !== 'this') {
a[x] = angular.copy(scope[x])
}
}
return a
};
scopeEval = function (scope) {
if (scope.$parent === null) {
return hoho(scope)
} else {
return angular.extend({}, haha(scope.$parent), hoho(scope))
}
};
Use it with scopeEval($($0).scope())
.
Sometimes you may want to monitor the values in ngModel
when you are writing a directive. Use $($0).controller('ngModel')
and you will get to check the $formatters
, $parsers
, $modelValue
, $viewValue
$render
and everything.
You can use the JConsole command (or any other JMX client) to access that information.
It occurs basically when _Layout.cshtml is without:
@RenderSection("scripts", required: false)
or with
@RenderSection("scripts")
WITHOUT
required: false
So, Just add @RenderSection("scripts", required: false) in _Layout.cshtml and it works specially for those developers who works with Kendoui genarated projects.
Sorry but they are only in Unicode. :(
Big ones:
U+25B2
(Black up-pointing triangle ?)U+25BC
(Black down-pointing triangle ?)U+25C0
(Black left-pointing triangle ?)U+25B6
(Black right-pointing triangle ?)Big white ones:
U+25B3
(White up-pointing triangle ?)U+25BD
(White down-pointing triangle ?)U+25C1
(White left-pointing triangle ?)U+25B7
(White right-pointing triangle ?)There is also some smalller triangles:
U+25B4
(Black up-pointing small triangle ?)U+25C2
(Black left-pointing small triangle ?)U+25BE
(Black down-pointing small triangle ?)U+25B8
(Black right-pointing small triangle ?)Also some white ones:
U+25C3
(White left-pointing small triangle ?)U+25BF
(White down-pointing small triangle ?)U+25B9
(White right-pointing small triangle ?)U+25B5
(White up-pointing small triangle ?)There are also some "pointy" triangles. You can read more here in Wikipedia:
http://en.wikipedia.org/wiki/Geometric_Shapes
But unfortunately, they are all Unicode instead of ASCII.
If you still want to use ASCII, then you can use an image file for it of just use ^
and v
. (Just like the Google Maps in the mobile version this was referring to the ancient mobile Google Maps)
As others also suggested, you can also create triangles with HTML, either with CSS borders or SVG shapes or even JavaScript canvases.
div{
width: 0px;
height: 0px;
border-top: 10px solid black;
border-left: 8px solid transparent;
border-right: 8px solid transparent;
border-bottom: none;
}
<svg width="16" height="10">
<polygon points="0,0 16,0 8,10"/>
</svg>
var ctx = document.querySelector("canvas").getContext("2d");
// do not use with() outside of this demo!
with(ctx){
beginPath();
moveTo(0,0);
lineTo(16,0);
lineTo(8,10);
fill();
endPath();
}
The query can be written slightly simpler, like this:
DECLARE @T INT = 2
SELECT CASE
WHEN @T < 1 THEN 'less than one'
WHEN @T = 1 THEN 'one'
ELSE 'greater than one'
END T
If you want to be efficient, use bitwise operators (x & 1
), but if you want to be readable use modulo 2 (x % 2
)
interface in the Java programming language is an abstract type that is used to specify a behavior that classes must implement. They are similar to protocols. Interfaces are declared using the interface keyword
@interface is used to create your own (custom) Java annotations. Annotations are defined in their own file, just like a Java class or interface. Here is custom Java annotation example:
@interface MyAnnotation {
String value();
String name();
int age();
String[] newNames();
}
This example defines an annotation called MyAnnotation which has four elements. Notice the @interface keyword. This signals to the Java compiler that this is a Java annotation definition.
Notice that each element is defined similarly to a method definition in an interface. It has a data type and a name. You can use all primitive data types as element data types. You can also use arrays as data type. You cannot use complex objects as data type.
To use the above annotation, you could use code like this:
@MyAnnotation(
value="123",
name="Jakob",
age=37,
newNames={"Jenkov", "Peterson"}
)
public class MyClass {
}
Reference - http://tutorials.jenkov.com/java/annotations.html
static means it belongs to the class not an instance, this means that there is only one copy of that variable/method shared between all instances of a particular Class.
public class MyClass {
public static int myVariable = 0;
}
//Now in some other code creating two instances of MyClass
//and altering the variable will affect all instances
MyClass instance1 = new MyClass();
MyClass instance2 = new MyClass();
MyClass.myVariable = 5; //This change is reflected in both instances
final is entirely unrelated, it is a way of defining a once only initialization. You can either initialize when defining the variable or within the constructor, nowhere else.
note A note on final methods and final classes, this is a way of explicitly stating that the method or class can not be overridden / extended respectively.
Extra Reading So on the topic of static, we were talking about the other uses it may have, it is sometimes used in static blocks. When using static variables it is sometimes necessary to set these variables up before using the class, but unfortunately you do not get a constructor. This is where the static keyword comes in.
public class MyClass {
public static List<String> cars = new ArrayList<String>();
static {
cars.add("Ferrari");
cars.add("Scoda");
}
}
public class TestClass {
public static void main(String args[]) {
System.out.println(MyClass.cars.get(0)); //This will print Ferrari
}
}
You must not get this confused with instance initializer blocks which are called before the constructor per instance.
-- ### Six of one half dozen of another. Another method assuming MsSql
Declare @MonthStart datetime = convert(DateTime,'07/01/2016')
Declare @MonthEnd datetime = convert(DateTime,'07/31/2016')
Declare @DayCount_int Int = 0
Declare @WhileCount_int Int = 0
set @DayCount_int = DATEDIFF(DAY, @MonthStart, @MonthEnd)
select @WhileCount_int
WHILE @WhileCount_int < @DayCount_int + 1
BEGIN
print convert(Varchar(24),DateAdd(day,@WhileCount_int,@MonthStart),101)
SET @WhileCount_int = @WhileCount_int + 1;
END;
You should be using indexes to help SQL server performance. Usually that implies that columns that are used to find rows in a table are indexed.
Clustered indexes makes SQL server order the rows on disk according to the index order. This implies that if you access data in the order of a clustered index, then the data will be present on disk in the correct order. However if the column(s) that have a clustered index is frequently changed, then the row(s) will move around on disk, causing overhead - which generally is not a good idea.
Having many indexes is not good either. They cost to maintain. So start out with the obvious ones, and then profile to see which ones you miss and would benefit from. You do not need them from start, they can be added later on.
Most column datatypes can be used when indexing, but it is better to have small columns indexed than large. Also it is common to create indexes on groups of columns (e.g. country + city + street).
Also you will not notice performance issues until you have quite a bit of data in your tables. And another thing to think about is that SQL server needs statistics to do its query optimizations the right way, so make sure that you do generate that.
re> |(?<=\w)/.+(?=\.\w+$)| Compile time 0.0011 milliseconds Memory allocation (code space): 32 Study time 0.0002 milliseconds Capturing subpattern count = 0 No options First char = '/' No need char Max lookbehind = 1 Subject length lower bound = 2 No set of starting bytes data> http://php.net/manual/en/function.preg-match.php Execute time 0.0007 milliseconds 0: /manual/en/function.preg-match
re> |//[^/]*(.*)\.\w+$| Compile time 0.0010 milliseconds Memory allocation (code space): 28 Study time 0.0002 milliseconds Capturing subpattern count = 1 No options First char = '/' Need char = '.' Subject length lower bound = 4 No set of starting bytes data> http://php.net/manual/en/function.preg-match.php Execute time 0.0005 milliseconds 0: //php.net/manual/en/function.preg-match.php 1: /manual/en/function.preg-match
re> |/[^/]+(.*)\.| Compile time 0.0008 milliseconds Memory allocation (code space): 23 Study time 0.0002 milliseconds Capturing subpattern count = 1 No options First char = '/' Need char = '.' Subject length lower bound = 3 No set of starting bytes data> http://php.net/manual/en/function.preg-match.php Execute time 0.0005 milliseconds 0: /php.net/manual/en/function.preg-match. 1: /manual/en/function.preg-match
re> |/[^/]+\K.*(?=\.)| Compile time 0.0009 milliseconds Memory allocation (code space): 22 Study time 0.0002 milliseconds Capturing subpattern count = 0 No options First char = '/' No need char Subject length lower bound = 2 No set of starting bytes data> http://php.net/manual/en/function.preg-match.php Execute time 0.0005 milliseconds 0: /manual/en/function.preg-match
re> |\w+\K/.*(?=\.)| Compile time 0.0009 milliseconds Memory allocation (code space): 22 Study time 0.0003 milliseconds Capturing subpattern count = 0 No options No first char Need char = '/' Subject length lower bound = 2 Starting byte set: 0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z _ a b c d e f g h i j k l m n o p q r s t u v w x y z data> http://php.net/manual/en/function.preg-match.php Execute time 0.0011 milliseconds 0: /manual/en/function.preg-match
form comment of JStrahl format(as.Date(df$date),"%w")
, we get number of current day :
as.numeric(format(as.Date("2016-05-09"),"%w"))
Make
can tell you what it knows and what it will do.
Suppose you have an "install" target, which executes commands like:
cp <filelist> <destdir>/
In your generic rules, add:
uninstall :; MAKEFLAGS= ${MAKE} -j1 -spinf $(word 1,${MAKEFILE_LIST}) install \
| awk '/^cp /{dest=$NF; for (i=NF; --i>0;) {print dest"/"$i}}' \
| xargs rm -f
A similar trick can do a generic make clean
.
In C# it is not possible to call another constructor from inside the method body. You can call a base constructor this way: foo(args):base() as pointed out yourself. You can also call another constructor in the same class: foo(args):this().
When you want to do something before calling a base constructor, it seems the construction of the base is class is dependant of some external things. If so, you should through arguments of the base constructor, not by setting properties of the base class or something like that
I ran into similar issue and found out that my npm config file ( .npmrc) is having wrong registry entry. commented it out and re ran npm install. it worked.
checkbox.ButtonTintList = ColorStateList.ValueOf(Android.Color.White);
Use ButtonTintList
instead of BackgroundTintList
Possibly:
select lpad(column, 8, 0) from table;
Edited in response to question from mylesg, in comments below:
ok, seems to make the change on the query- but how do I make it stick (change it) permanently in the table? I tried an UPDATE instead of SELECT
I'm assuming that you used a query similar to:
UPDATE table SET columnName=lpad(nums,8,0);
If that was successful, but the table's values are still without leading-zeroes, then I'd suggest you probably set the column as a numeric type? If that's the case then you'd need to alter the table so that the column is of a text/varchar() type in order to preserve the leading zeroes:
First:
ALTER TABLE `table` CHANGE `numberColumn` `numberColumn` CHAR(8);
Second, run the update:
UPDATE table SET `numberColumn`=LPAD(`numberColum`, 8, '0');
This should, then, preserve the leading-zeroes; the down-side is that the column is no longer strictly of a numeric type; so you may have to enforce more strict validation (depending on your use-case) to ensure that non-numerals aren't entered into that column.
References:
There are many ways to skip the first line. In addition to those said by Bakuriu, I would add:
with open(filename, 'r') as f:
next(f)
for line in f:
and:
with open(filename,'r') as f:
lines = f.readlines()[1:]
In this example of a rc.local script I use io redirection at the very first line of execution to my own log file:
#!/bin/sh -e
#
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.
exec 2> /tmp/rc.local.log # send stderr from rc.local to a log file
exec 1>&2 # send stdout to the same log file
set -x # tell sh to display commands before execution
/opt/stuff/somefancy.error.script.sh
exit 0
As a matter of fact, specifying parameters explicitly as ?date='fulldatetime' worked like a charm. So this will be a solution for now: don't use commas, but use old GET approach.
Try
Html
<div class="responsive-container">
<div class="img-container">
<IMG HERE>
</div>
</div>
CSS
.img-container {
position: absolute;
top: 0;
left: 0;
height:0;
padding-bottom:100%;
}
.img-container img {
width:100%;
}
48 lapply_install_and_load <- function (package1, ...)
49 {
50 #
51 # convert arguments to vector
52 #
53 packages <- c(package1, ...)
54 #
55 # check if loaded and installed
56 #
57 loaded <- packages %in% (.packages())
58 names(loaded) <- packages
59 #
60 installed <- packages %in% rownames(installed.packages())
61 names(installed) <- packages
62 #
63 # start loop to determine if each package is installed
64 #
65 load_it <- function (p, loaded, installed)
66 {
67 if (loaded[p])
68 {
69 print(paste(p, "loaded"))
70 }
71 else
72 {
73 print(paste(p, "not loaded"))
74 if (installed[p])
75 {
76 print(paste(p, "installed"))
77 do.call("library", list(p))
78 }
79 else
80 {
81 print(paste(p, "not installed"))
82 install.packages(p)
83 do.call("library", list(p))
84 }
85 }
86 }
87 #
88 lapply(packages, load_it, loaded, installed)
89 }
yield from
basically chains iterators in a efficient way:
# chain from itertools:
def chain(*iters):
for it in iters:
for item in it:
yield item
# with the new keyword
def chain(*iters):
for it in iters:
yield from it
As you can see it removes one pure Python loop. That's pretty much all it does, but chaining iterators is a pretty common pattern in Python.
Threads are basically a feature that allow you to jump out of functions at completely random points and jump back into the state of another function. The thread supervisor does this very often, so the program appears to run all these functions at the same time. The problem is that the points are random, so you need to use locking to prevent the supervisor from stopping the function at a problematic point.
Generators are pretty similar to threads in this sense: They allow you to specify specific points (whenever they yield
) where you can jump in and out. When used this way, generators are called coroutines.
Read this excellent tutorials about coroutines in Python for more details
According to the docs numpy.loadtxt
is
a fast reader for simply formatted files. The genfromtxt function provides more sophisticated handling of, e.g., lines with missing values.
so there are only a few options to handle more complicated files.
As mentioned numpy.genfromtxt
has more options. So as an example you could use
import numpy as np
data = np.genfromtxt('e:\dir1\datafile.csv', delimiter=',', skip_header=10,
skip_footer=10, names=['x', 'y', 'z'])
to read the data and assign names to the columns (or read a header line from the file with names=True
) and than plot it with
ax1.plot(data['x'], data['y'], color='r', label='the data')
I think numpy is quite well documented now. You can easily inspect the docstrings from within ipython
or by using an IDE like spider
if you prefer to read them rendered as HTML.
Use following function:
var splitUrl = function() {
var vars = [], hash;
var url = document.URL.split('?')[0];
var p = document.URL.split('?')[1];
if(p != undefined){
p = p.split('&');
for(var i = 0; i < p.length; i++){
hash = p[i].split('=');
vars.push(hash[1]);
vars[hash[0]] = hash[1];
}
}
vars['url'] = url;
return vars;
};
and access variables as vars['index']
where 'index'
is name of the get variable.
Remove the values then check (remove null check here if you want)
const x = A.filter(item => item !== undefined || item !== null).length
With Lodash
const x = _.size(_.filter(A, item => !_.isNil(item)))
If you dont want to use external libraries, you can use URL and URLConnection classes from standard Java API.
An example looks like this:
String urlString = "http://wherever.com/someAction?param1=value1¶m2=value2....";
URL url = new URL(urlString);
URLConnection conn = url.openConnection();
InputStream is = conn.getInputStream();
// Do what you want with that stream
I tried every single tip on this page and nothing helped. I was doing a git fetch
and a git reset --hard origin/development
gave me the unkink error. I couldn't reset to the latest commit.
What helped was checking out another branch and then checking out the previous branch. Very strange but it solved the problem.
You can use map
:
List<String> names =
personList.stream()
.map(Person::getName)
.collect(Collectors.toList());
EDIT :
In order to combine the Lists of friend names, you need to use flatMap
:
List<String> friendNames =
personList.stream()
.flatMap(e->e.getFriends().stream())
.collect(Collectors.toList());
This is a very old post, but I recently encountered the problem and for me the following solved the issue by formatting the SQL as follows,
SELECT CONVERT (varchar, getdate(), 120) AS Date
If you copy the result from SQL Server and paste in Excel then Excel holds the proper formatting.
Anyone using ButterKnife. You can use like:
@OnTextChanged(R.id.zip_code)
void onZipCodeTextChanged(CharSequence zipCode, int start, int count, int after) {
}
Just for anyone who still has an issue, I also had an issue where I typed ngif
rather than ngIf
(notice the capital 'I').
On the one hand, when you call System.getProperty("java.io.tmpdir")
instruction, Java calls the Win32 API's function GetTempPath
.
According to the MSDN :
The GetTempPath function checks for the existence of environment variables in the following order and uses the first path found:
- The path specified by the TMP environment variable.
- The path specified by the TEMP environment variable.
- The path specified by the USERPROFILE environment variable.
- The Windows directory.
On the other hand, please check the historical reasons on why TMP
and TEMP
coexist. It's really worth reading.
Try this: Adding users to MySQL
You need grant privileges to the user if you want external acess to database(ie. web pages).
You should never write code that concatenates SQL and parameters as string - this opens up your code to SQL injection which is a really serious security problem.
Use bind params - for a nice howto see here...
In case anyone had the same problem: check this as @PravinS suggested. I used the exact same code as shown there and it worked for me perfectly.
This is the relevant part of the server code that helped:
if (isset($_POST['btnUpload']))
{
$url = "URL_PATH of upload.php"; // e.g. http://localhost/myuploader/upload.php // request URL
$filename = $_FILES['file']['name'];
$filedata = $_FILES['file']['tmp_name'];
$filesize = $_FILES['file']['size'];
if ($filedata != '')
{
$headers = array("Content-Type:multipart/form-data"); // cURL headers for file uploading
$postfields = array("filedata" => "@$filedata", "filename" => $filename);
$ch = curl_init();
$options = array(
CURLOPT_URL => $url,
CURLOPT_HEADER => true,
CURLOPT_POST => 1,
CURLOPT_HTTPHEADER => $headers,
CURLOPT_POSTFIELDS => $postfields,
CURLOPT_INFILESIZE => $filesize,
CURLOPT_RETURNTRANSFER => true
); // cURL options
curl_setopt_array($ch, $options);
curl_exec($ch);
if(!curl_errno($ch))
{
$info = curl_getinfo($ch);
if ($info['http_code'] == 200)
$errmsg = "File uploaded successfully";
}
else
{
$errmsg = curl_error($ch);
}
curl_close($ch);
}
else
{
$errmsg = "Please select the file";
}
}
html form should look something like:
<form action="uploadpost.php" method="post" name="frmUpload" enctype="multipart/form-data">
<tr>
<td>Upload</td>
<td align="center">:</td>
<td><input name="file" type="file" id="file"/></td>
</tr>
<tr>
<td> </td>
<td align="center"> </td>
<td><input name="btnUpload" type="submit" value="Upload" /></td>
</tr>
Had a need for similar functionality myself, so after much hair pulling I came up with the function below
/**
* Fetches angle relative to screen centre point
* where 3 O'Clock is 0 and 12 O'Clock is 270 degrees
*
* @param screenPoint
* @return angle in degress from 0-360.
*/
public double getAngle(Point screenPoint) {
double dx = screenPoint.getX() - mCentreX;
// Minus to correct for coord re-mapping
double dy = -(screenPoint.getY() - mCentreY);
double inRads = Math.atan2(dy, dx);
// We need to map to coord system when 0 degree is at 3 O'clock, 270 at 12 O'clock
if (inRads < 0)
inRads = Math.abs(inRads);
else
inRads = 2 * Math.PI - inRads;
return Math.toDegrees(inRads);
}
You may be able to use unicode equivalent both apostrophe and other characters which are not supported in xml string. Apostrophe's equivalent is "\u0027" .
Slightly different approach:
MultiValueMap<String, String> headers = new LinkedMultiValueMap<String, String>();
headers.add("HeaderName", "value");
headers.add("Content-Type", "application/json");
RestTemplate restTemplate = new RestTemplate();
restTemplate.getMessageConverters().add(new MappingJackson2HttpMessageConverter());
HttpEntity<ObjectToPass> request = new HttpEntity<ObjectToPass>(objectToPass, headers);
restTemplate.postForObject(url, request, ClassWhateverYourControllerReturns.class);
Swift:
let jsonString = String(data: jsonData, encoding: .ascii)
or .utf8
or whatever encoding appropriate
With C#6.0 you also have a new way of formatting date when using string interpolation e.g.
$"{DateTime.Now:yyyy-MM-dd HH:mm:ss}"
Can't say its any better, but it is slightly cleaner if including the formatted DateTime in a longer string.
If you wanna find just the word like 'are' in "How are you?" and not like 'are' in 'hare'
$word=" are ";
$str="How are you?";
if(strpos($word,$str) !== false){
echo 1;
}
I have issue with itextsharp and itextsharp.xmlworker dlls for exception-from-hresult-0x80131040 so I have removed those both dlls from references and downloaded new dlls directly from nuget packages, which resolved my issue.
May be this method can be useful to resolved the issue to other people.
I recently used requests_html library to solve this problem.
Their expanded documentation at readthedocs.io is pretty good (skip the annotated version at pypi.org). If your use case is basic, you are likely to have some success.
from requests_html import HTMLSession
session = HTMLSession()
response = session.request(method="get",url="www.google.com/")
response.html.render()
If you are having trouble rendering the data you need with response.html.render(), you can pass some javascript to the render function to render the particular js object you need. This is copied from their docs, but it might be just what you need:
If script is specified, it will execute the provided JavaScript at runtime. Example:
script = """
() => {
return {
width: document.documentElement.clientWidth,
height: document.documentElement.clientHeight,
deviceScaleFactor: window.devicePixelRatio,
}
}
"""
Returns the return value of the executed script, if any is provided:
>>> response.html.render(script=script)
{'width': 800, 'height': 600, 'deviceScaleFactor': 1}
In my case, the data I wanted were the arrays that populated a javascript plot but the data wasn't getting rendered as text anywhere in the html. Sometimes its not clear at all what the object names are of the data you want if the data is populated dynamically. If you can't track down the js objects directly from view source or inspect, you can type in "window" followed by ENTER in the debugger console in the browser (Chrome) to pull up a full list of objects rendered by the browser. If you make a few educated guesses about where the data is stored, you might have some luck finding it there. My graph data was under window.view.data in the console, so in the "script" variable passed to the .render() method quoted above, I used:
return {
data: window.view.data
}
No need to add commands anymore. For those who are new to Visual Studio Code and searching for an easy way to format code on saving, kindly follow the below steps.
[Cmd+,]
in Mac or using the below screenshot.You are done. Thank you.
Very simple solution and test for JavaScript!
ToBase64 = function (u8) {
return btoa(String.fromCharCode.apply(null, u8));
}
FromBase64 = function (str) {
return atob(str).split('').map(function (c) { return c.charCodeAt(0); });
}
var u8 = new Uint8Array(256);
for (var i = 0; i < 256; i++)
u8[i] = i;
var b64 = ToBase64(u8);
console.debug(b64);
console.debug(FromBase64(b64));
Copying from a command line is unnecessary. I typed in the name of the DLL from the Start Window search. I chose See More Results. The one in the GAC was returned in the search window. I right clicked on it and said open file location. It opened in normal Windows Explorer. I copied the file. I closed the window. Done.
Because most of solutions is bit outdated I could also suggest asciitable which already available in maven (de.vandermeer:asciitable:0.3.2
) and may produce very complicated configurations.
And usage still looks easy:
AsciiTable at = new AsciiTable();
at.addRule();
at.addRow("row 1 col 1", "row 1 col 2");
at.addRule();
at.addRow("row 2 col 1", "row 2 col 2");
at.addRule();
System.out.println(at.render()); // Finally, print the table to standard out.
You can also do that from inteface builder like this.
I think it's helpful.
Sounds like a job for sed
:
sed -n '8,12p' yourfile
...will send lines 8 through 12 of yourfile
to standard out.
If you want to prepend the line number, you may wish to use cat -n
first:
cat -n yourfile | sed -n '8,12p'
It is properly written over here
If you download the .msi file then install it and if you download the zip file then extract it.
Set up the MongoDB environment.
MongoDB requires a data directory to store all data. MongoDB’s default data directory path is \data\db. Create this folder using the following commands from a Command Prompt:
md \data\db
You can specify an alternate path for data files using the --dbpath option to mongod.exe, for example:
C:\mongodb\bin\mongod.exe --dbpath d:\test\mongodb\data
If your path includes spaces, enclose the entire path in double quotes, for example:
C:\mongodb\bin\mongod.exe --dbpath "d:\test\mongo db data"
You may also specify the dbpath in a configuration file.
Start MongoDB.
To start MongoDB, run mongod.exe. For example, from the Command Prompt:
C:\mongodb\bin\mongod.exe
Connect to MongoDB.
To connect to MongoDB through the mongo.exe shell, open another Command Prompt.
C:\mongodb\bin\mongo.exe
Instead of doing this:
$(document).ready(function() { });
You should be doing this:
jQuery(document).ready(function($) {
// your code goes here
});
This is because WordPress may use $ for something other than jQuery, in the future, or now, and so you need to load jQuery in a way that the $ can be used only in a jQuery document ready callback.
In Eclipse, try Project > Open Project and select the projects to be opened.
file is not defined in Python3, which you are using apparently. The package you're instaling is not suitable for Python 3, instead, you should install Python 2.7 and try again.
See: http://docs.python.org/release/3.0/whatsnew/3.0.html#builtins
>>> a='2010-01-31'
>>> a.split('-')
['2010', '01', '31']
>>> year,month,date=a.split('-')
>>> year
'2010'
>>> month
'01'
>>> date
'31'
I recently had to figure this out for myself and ended up on a solution inspired by @Zahymaka 's answer, but solving the 2x looping of the array.
What you can do is create an array with all your keys, in the order they exist, and then loop through that.
$keys=array_keys($items);
foreach($keys as $index=>$key){
echo "position: $index".PHP_EOL."item: ".PHP_EOL;
var_dump($items[$key]);
...
}
PS: I know this is very late to the party, but since I found myself searching for this, maybe this could be helpful to someone else
This will list only modified files:
svn status -u | grep M
The example you are referring to is called Upcasting in java.
It creates a subclass object with a super class variable pointing to it.
The variable does not change, it is still the variable of the super class but it is pointing to the object of subclass.
For example lets say you have two classes Machine and Camera ; Camera is a subclass of Machine
class Machine{
public void start(){
System.out.println("Machine Started");
}
}
class Camera extends Machine{
public void start(){
System.out.println("Camera Started");
}
public void snap(){
System.out.println("Photo taken");
}
}
Machine machine1 = new Camera();
machine1.start();
If you execute the above statements it will create an instance of Camera class with a reference of Machine class pointing to it.So, now the output will be "Camera Started"
The variable is still a reference of Machine class. If you attempt machine1.snap();
the code will not compile
The takeaway here is all Cameras are Machines since Camera is a subclass of Machine but all Machines are not Cameras. So you can create an object of subclass and point it to a super class refrence but you cannot ask the super class reference to do all the functions of a subclass object( In our example machine1.snap()
wont compile). The superclass reference has access to only the functions known to the superclass (In our example machine1.start()
). You can not ask a machine reference to take a snap. :)
I was looking to do exactly the same thing (RESTful web service), and I stumbled upon this firefox addon, which lets you modify the accept headers (actually, any request headers) for requests. It works perfectly.
To turn off those files, just add these lines to .vimrc (vim configuration file on unix based OS):
set nobackup #no backup files
set nowritebackup #only in case you don't want a backup file while editing
set noswapfile #no swap files
I believe the best way to change the password is simply to use:
\password
in the Postgres console.
Per ALTER USER
documentation:
Caution must be exercised when specifying an unencrypted password with this command. The password will be transmitted to the server in cleartext, and it might also be logged in the client's command history or the server log. psql contains a command \password that can be used to change a role's password without exposing the cleartext password.
Note: ALTER USER
is an alias for ALTER ROLE
WHERE (IsNumeric(@OrderNumber) <> 1 OR OrderNumber = @OrderNumber) AND (IsNumber(@OrderNumber) = 1 OR OrderNumber LIKE '%' + @OrderNumber + '%')
I had a similar issue, I was using the ViewBag and Element name as same. (Typing mistake)
Pscp.exe is painfully slow.
Uploading files using WinSCP is like 10 times faster.
So, to do that from command line, first you got to add the winscp.com
file to your %PATH%. It's not a top-level domain, but an executable .com
file, which is located in your WinSCP installation directory.
Then just issue a simple command and your file will be uploaded much faster putty ever could:
WinSCP.com /command "open sftp://username:[email protected]:22" "put your_large_file.zip /var/www/somedirectory/" "exit"
And make sure your check the synchronize folders feature, which is basically what rsync
does, so you won't ever want to use pscp.exe again.
WinSCP.com /command "help synchronize"
Try this way:
select * from tab
where DateCol between DateAdd(DD,-7,GETDATE() ) and GETDATE()
This is an issue in the Chrome family and has been there forever.
A bug has been raised https://bugs.chromium.org/p/chromium/issues/detail?id=904208
It can be shown here: https://codepen.io/anon/pen/Jedvwj as soon as you add a border to anything button-like (say role="button" has been added to a tag for example) Chrome messes up and sets the focus state when you click with your mouse. You should see that outline only on keyboard tab-press.
I highly recommend using this fix: https://github.com/wicg/focus-visible.
Just do the following
npm install --save focus-visible
Add the script to your html:
<script src="/node_modules/focus-visible/dist/focus-visible.min.js"></script>
or import into your main entry file if using webpack or something similar:
import 'focus-visible/dist/focus-visible.min';
then put this in your css file:
// hide the focus indicator if element receives focus via mouse, but show on keyboard focus (on tab).
.js-focus-visible :focus:not(.focus-visible) {
outline: none;
}
// Define a strong focus indicator for keyboard focus.
// If you skip this then the browser's default focus indicator will display instead
// ideally use outline property for those users using windows high contrast mode
.js-focus-visible .focus-visible {
outline: magenta auto 5px;
}
You can just set:
button:focus {outline:0;}
but if you have a large number of users, you're disadvantaging those who cannot use mice or those who just want to use their keyboard for speed.
The WSDL is a kind of contract between API provider and the client it's describe the web service : the public function , optional/required field ...
But The soap message is a data transferred between client and provider (payload)
For Windows 7:
.jar
C:\Program Files\Java\jre7\bin\javaw.exe
I had white space at the bottom of all my websites; this is how I solved the matter:
the first and best thing you can do when you are debugging css issues like this is to add:
*{ border: 1px solid red; }
this css line puts a red box around all your css elements.
I had white space at the bottom of my page due to a faulty chrome extension which was adding the div 'dp_swf_engine' to the bottom of my page:
without the red box, I would have never noticed a 1px div. I then got rid of the faulty extension, and put 'display:none' on #dp_swf_engine as a secondary measure. (who knows when it could come back to add random white space at the bottom of my page for all my pages and apps?!)
Here is a tidyverse
option that might work depending on the data, and some caveats on its usage:
library(tidyverse)
starting_df %>%
rownames_to_column() %>%
gather(variable, value, -rowname) %>%
spread(rowname, value)
rownames_to_column()
is necessary if the original dataframe has meaningful row names, otherwise the new column names in the new transposed dataframe will be integers corresponding to the orignal row number. If there are no meaningful row names you can skip rownames_to_column()
and replace rowname
with the name of the first column in the dataframe, assuming those values are unique and meaningful. Using the tidyr::smiths
sample data would be:
smiths %>%
gather(variable, value, -subject) %>%
spread(subject, value)
Using the example starting_df
with the tidyverse
approach will throw a warning message about dropping attributes. This is related to converting columns with different attribute types into a single character column. The smiths
data will not give that warning because all columns except for subject
are doubles.
The earlier answer using as.data.frame(t())
will convert everything to a factor
if there are mixed column types unless stringsAsFactors = FALSE
is added,
whereas the tidyverse
option converts everything to a character by default if
there are mixed column types.
One way would be to just escape the quotes properly:
<input type="button" value="click" id="mybtn"
onclick="myfunction('/myController/myAction',
'myfuncionOnOK(\'/myController2/myAction2\',
\'myParameter2\');',
'myfuncionOnCancel(\'/myController3/myAction3\',
\'myParameter3\');');">
In this case, though, I think a better way to handle this would be to wrap the two handlers in anonymous functions:
<input type="button" value="click" id="mybtn"
onclick="myfunction('/myController/myAction',
function() { myfuncionOnOK('/myController2/myAction2',
'myParameter2'); },
function() { myfuncionOnCancel('/myController3/myAction3',
'myParameter3'); });">
And then, you could call them from within myfunction
like this:
function myfunction(url, onOK, onCancel)
{
// Do whatever myfunction would normally do...
if (okClicked)
{
onOK();
}
if (cancelClicked)
{
onCancel();
}
}
That's probably not what myfunction
would actually look like, but you get the general idea. The point is, if you use anonymous functions, you have a lot more flexibility, and you keep your code a lot cleaner as well.
You are using an adjacent sibling selector (+
) when the elements are not siblings. The label is the parent of the input, not it's sibling.
CSS has no way to select an element based on it's descendents (nor anything that follows it).
You'll need to look to JavaScript to solve this.
Alternatively, rearrange your markup:
<input id="foo"><label for="foo">…</label>
if you're using React I found 'react-moment'
library more easy to handle for Front-End related tasks, just import <Moment>
component and add unix
prop:
import Moment from 'react-moment'
// get date variable
const {date} = this.props
<Moment unix>{date}</Moment>
A very useful way to fix this is to detect the browsers webkit version and check if it is at least the one we need, else do something else.
Using jQuery it goes like this:
"use strict";_x000D_
_x000D_
$(document).ready(function() {_x000D_
var appVersion = navigator.appVersion;_x000D_
var webkitVersion_positionStart = appVersion.indexOf("AppleWebKit/") + 12;_x000D_
var webkitVersion_positionEnd = webkitVersion_positionStart + 3;_x000D_
var webkitVersion = appVersion.slice(webkitVersion_positionStart, webkitVersion_positionEnd);_x000D_
_x000D_
console.log(webkitVersion);_x000D_
_x000D_
if (webkitVersion < 537) {_x000D_
console.log("webkit outdated.");_x000D_
} else {_x000D_
console.log("webkit ok.");_x000D_
};_x000D_
});
_x000D_
This provides a safe and permanent fix for dealing with problems with browser's different webkit implementations.
Happy coding!
Linus is spot on in the approach, but a few properties are off. It looks like 'AgencyContractId' is your Primary Key, which is unrelated to the output you want to give the user. I think this is what you want (assuming you change your ViewModel to match the data you say you want in your view).
var agencyContracts = _agencyContractsRepository.AgencyContracts
.GroupBy(ac => new
{
ac.AgencyID,
ac.VendorID,
ac.RegionID
})
.Select(ac => new AgencyContractViewModel
{
AgencyId = ac.Key.AgencyID,
VendorId = ac.Key.VendorID,
RegionId = ac.Key.RegionID,
Total = ac.Sum(acs => acs.Amount) + ac.Sum(acs => acs.Fee)
});
You'll need to save as a blob, LONGBLOB datatype in mysql will work.
Ex:
CREATE TABLE 'test'.'pic' (
'idpic' INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
'caption' VARCHAR(45) NOT NULL,
'img' LONGBLOB NOT NULL,
PRIMARY KEY ('idpic')
)
As others have said, its a bad practice but it can be done. Not sure if this code would scale well, though.
From android API Level 19, when I want to instance JSONArray object I put JSONObject directly as parameter like below:
JSONArray jsonArray=new JSONArray(jsonObject);
JSONArray has constructor to accept object.
Let’s say you are making an executable that uses some functions found in a library.
If the library you are using is static, the linker will copy the object code for these functions directly from the library and insert them into the executable.
Now if this executable is run it has every thing it needs, so the executable loader just loads it into memory and runs it.
If the library is dynamic the linker will not insert object code but rather it will insert a stub which basically says this function is located in this DLL at this location.
Now if this executable is run, bits of the executable are missing (i.e the stubs) so the loader goes through the executable fixing up the missing stubs. Only after all the stubs have been resolved will the executable be allowed to run.
To see this in action delete or rename the DLL and watch how the loader will report a missing DLL error when you try to run the executable.
Hence the name Dynamic Link Library, parts of the linking process is being done dynamically at run time by the executable loader.
One a final note, if you don't link to the DLL then no stubs will be inserted by the linker, but Windows still provides the GetProcAddress API that allows you to load an execute the DLL function entry point long after the executable has started.
I have resolved the same problem using the below code:
String query = "SELECT violationDate, COUNT(*) as date " +
"FROM challan " +
"WHERE challanType = '" + type + "' GROUP BY violationDate";
Here violationDate and date are two columns of the result table. date column will return occurrence.
cr.getInt(1)
As suggested in the bug report, uncommenting the line
idea.jars.nocopy=false
in the idea.properties
file has solved the issue for me.
Note that this needs to be done every time Android Studio updates.
This structure works for me - I used it in a small tasks management application.
The controller:
public JsonResult taskCount(string fDate)
{
// do some stuff based on the date
// totalTasks is a count of the things I need to do today
// tasksDone is a count of the tasks I actually did
// pcDone is the percentage of tasks done
return Json(new {
totalTasks = totalTasks,
tasksDone = tasksDone,
percentDone = pcDone
});
}
In the AJAX call I access the data like this:
.done(function (data) {
// data.totalTasks
// data.tasksDone
// data.percentDone
});
I have problem with this error handling approach: In case of web.config:
<customErrors mode="On"/>
The error handler is searching view Error.shtml and the control flow step in to Application_Error global.asax only after exception
System.InvalidOperationException: The view 'Error' or its master was not found or no view engine supports the searched locations. The following locations were searched: ~/Views/home/Error.aspx ~/Views/home/Error.ascx ~/Views/Shared/Error.aspx ~/Views/Shared/Error.ascx ~/Views/home/Error.cshtml ~/Views/home/Error.vbhtml ~/Views/Shared/Error.cshtml ~/Views/Shared/Error.vbhtml at System.Web.Mvc.ViewResult.FindView(ControllerContext context) ....................
So
Exception exception = Server.GetLastError();
Response.Clear();
HttpException httpException = exception as HttpException;
httpException is always null then
customErrors mode="On"
:(
It is misleading
Then <customErrors mode="Off"/>
or <customErrors mode="RemoteOnly"/>
the users see customErrors html,
Then customErrors mode="On" this code is wrong too
Another problem of this code that
Response.Redirect(String.Format("~/Error/{0}/?message={1}", action, exception.Message));
Return page with code 302 instead real error code(402,403 etc)
The sample config you provided is actually valid YAML. In fact, YAML meets all of your demands, is implemented in a large number of languages, and is extremely human friendly. I would highly recommend you use it. The PyYAML project provides a nice python module, that implements YAML.
To use the yaml module is extremely simple:
import yaml
config = yaml.safe_load(open("path/to/config.yml"))
A <context:component-scan/>
custom tag registers the same set of bean definitions as is done by , apart from its primary responsibility of scanning the java packages and registering bean definitions from the classpath.
If for some reason this registration of default bean definitions are to be avoided, the way to do that is to specify an additional "annotation-config" attribute in component-scan, this way:
<context:component-scan basePackages="" annotation-config="false"/>
Reference: http://www.java-allandsundry.com/2012/12/contextcomponent-scan-contextannotation.html
openssl x509 -outform der -in your-cert.pem -out your-cert.crt
-L
returns true if the "file" exists and is a symbolic link (the linked file may or may not exist). You want -f
(returns true if file exists and is a regular file) or maybe just -e
(returns true if file exists regardless of type).
According to the GNU manpage, -h
is identical to -L
, but according to the BSD manpage, it should not be used:
-h file
True if file exists and is a symbolic link. This operator is retained for compatibility with previous versions of this program. Do not rely on its existence; use -L instead.
The difference is the name of the mangled identifier (_ZN12_GLOBAL__N_11bE
vs _ZL1b
, which doesn't really matter, but both of them are assembled to local symbols in the symbol table (absence of .global
asm directive).
#include<iostream>
namespace {
int a = 3;
}
static int b = 4;
int c = 5;
int main (){
std::cout << a << b << c;
}
.data
.align 4
.type _ZN12_GLOBAL__N_11aE, @object
.size _ZN12_GLOBAL__N_11aE, 4
_ZN12_GLOBAL__N_11aE:
.long 3
.align 4
.type _ZL1b, @object
.size _ZL1b, 4
_ZL1b:
.long 4
.globl c
.align 4
.type c, @object
.size c, 4
c:
.long 5
.text
As for a nested anonymous namespace:
namespace {
namespace {
int a = 3;
}
}
.data
.align 4
.type _ZN12_GLOBAL__N_112_GLOBAL__N_11aE, @object
.size _ZN12_GLOBAL__N_112_GLOBAL__N_11aE, 4
_ZN12_GLOBAL__N_112_GLOBAL__N_11aE:
.long 3
All 1st level anonymous namespaces in the translation unit are combined with each other, All 2nd level nested anonymous namespaces in the translation unit are combined with each other
You can also have a nested namespace or nested inline namespace in an anonymous namespace
namespace {
namespace A {
int a = 3;
}
}
.data
.align 4
.type _ZN12_GLOBAL__N_11A1aE, @object
.size _ZN12_GLOBAL__N_11A1aE, 4
_ZN12_GLOBAL__N_11A1aE:
.long 3
which for the record demangles as:
.data
.align 4
.type (anonymous namespace)::A::a, @object
.size (anonymous namespace)::A::a, 4
(anonymous namespace)::A::a:
.long 3
//inline has the same output
You can also have anonymous inline namespaces, but as far as I can tell, inline
on an anonymous namespace has 0 effect
inline namespace {
inline namespace {
int a = 3;
}
}
_ZL1b
: _Z
means this is a mangled identifier. L
means it is a local symbol through static
. 1
is the length of the identifier b
and then the identifier b
_ZN12_GLOBAL__N_11aE
_Z
means this is a mangled identifier. N
means this is a namespace 12
is the length of the anonymous namespace name _GLOBAL__N_1
, then the anonymous namespace name _GLOBAL__N_1
, then 1
is the length of the identifier a
, a
is the identifier a
and E
closes the identifier that resides in a namespace.
_ZN12_GLOBAL__N_11A1aE
is the same as above except there's another namespace level in it 1A
You've used integers in the expression 7/10, and integer 7 divided by integer 10 is zero.
What you're expecting is floating point division. Any of the following would evaluate the way you expected:
7.0 / 10
7 / 10.0
7.0 / 10.0
7 / (double) 10
In PHP there are a lot of variables that I should check. Is it the same on Go?
This has nothing to do with Go (or PHP for that matter). It just depends on what the client, proxy, load-balancer, or server is sending. Get the one you need depending on your environment.
http.Request.RemoteAddr
contains the remote IP address. It may or may not be your actual client.
And is the request case sensitive? for example x-forwarded-for is the same as X-Forwarded-For and X-FORWARDED-FOR? (from req.Header.Get("X-FORWARDED-FOR"))
No, why not try it yourself? http://play.golang.org/p/YMf_UBvDsH
Use defaultdict
from collections import defaultdict
a = {}
a = defaultdict(lambda:0,a)
a["anything"] # => 0
This is very useful for case like this,where default values for every key is set as 0:
results ={ 'pre-access' : {'count': 4, 'pass_count': 2},'no-access' : {'count': 55, 'pass_count': 19}
for k,v in results.iteritems():
a['count'] += v['count']
a['pass_count'] += v['pass_count']
I'll give you one nice function for this problem:
function url_redirect(url){
var X = setTimeout(function(){
window.location.replace(url);
return true;
},300);
if( window.location = url ){
clearTimeout(X);
return true;
} else {
if( window.location.href = url ){
clearTimeout(X);
return true;
}else{
clearTimeout(X);
window.location.replace(url);
return true;
}
}
return false;
};
This is universal working solution for the window.location
problem. Some browsers go into problem with window.location.href
and also sometimes can happen that window.location
fail. That's why we also use window.location.replace()
for any case and timeout for the "last try".
I've seen Google toolbar's autocomplete feature disabled with javascript. It might work with some other autofill tools; I don't know if it'll help with browsers built in autocomplete.
<script type="text/javascript"><!--
if(window.attachEvent)
window.attachEvent("onload",setListeners);
function setListeners(){
inputList = document.getElementsByTagName("INPUT");
for(i=0;i<inputList.length;i++){
inputList[i].attachEvent("onpropertychange",restoreStyles);
inputList[i].style.backgroundColor = "";
}
selectList = document.getElementsByTagName("SELECT");
for(i=0;i<selectList.length;i++){
selectList[i].attachEvent("onpropertychange",restoreStyles);
selectList[i].style.backgroundColor = "";
}
}
function restoreStyles(){
if(event.srcElement.style.backgroundColor != "")
event.srcElement.style.backgroundColor = "";
}//-->
</script>
Facebook does not allow you to change the "What's on your mind?" text box, unless of course you're developing an application for use on Facebook.
Actually I would use:
df[ grep("REVERSE", df$Name, invert = TRUE) , ]
This will avoid deleting all of the records if the desired search word is not contained in any of the rows.
Starting in v3.3 You can use updateMany
db.collection.updateMany(
<filter>,
<update>,
{
upsert: <boolean>,
writeConcern: <document>,
collation: <document>,
arrayFilters: [ <filterdocument1>, ... ]
}
)
In v2.2, the update function takes the following form:
db.collection.update(
<query>,
<update>,
{ upsert: <boolean>, multi: <boolean> }
)
https://docs.mongodb.com/manual/reference/method/db.collection.update/
The only way I've figured out how to do this is to have two properties for my class. One as the boolean for the programming API which is not included in the mapping. It's getter and setter reference a private char variable which is Y/N. I then have another protected property which is included in the hibernate mapping and it's getters and setters reference the private char variable directly.
EDIT: As has been pointed out there are other solutions that are directly built into Hibernate. I'm leaving this answer because it can work in situations where you're working with a legacy field that doesn't play nice with the built in options. On top of that there are no serious negative consequences to this approach.
Option 1
You could also solve it by adding a transparent border to the row (tr), like this
HTML
<table>
<tr>
<td>1</td>
</tr>
<tr>
<td>2</td>
</tr>
</table>
CSS
tr {
border-top: 12px solid transparent;
border-bottom: 12px solid transparent;
}
Works like a charm, although if you need regular borders, then this method will sadly not work.
Option 2
Since rows act as a way to group cells, the correct way to do this, would be to use
table {
border-collapse: inherit;
border-spacing: 0 10px;
}
You can try this, it looks up for the index containing this element, and it sets the index number as the int, then it checks if the int is greater then -1, so if it's 0 or more, then it means it found such an index - as arrays are 0 based.
string[] Selection = {"First", "Second", "Third", "Fourth"};
string Valid = "Third"; // You can change this to a Console.ReadLine() to
//use user input
int temp = Array.IndexOf(Selection, Valid); // it gets the index of 'Valid',
// in our case it's "Third"
if (temp > -1)
Console.WriteLine("Valid selection");
}
else
{
Console.WriteLine("Not a valid selection");
}
I created this (swift) class to create a back button exactly like the regular one, including back arrow. It can create a button with regular text or with an image.
Usage
weak var weakSelf = self
// Assign back button with back arrow and text (exactly like default back button)
navigationItem.leftBarButtonItems = CustomBackButton.createWithText("YourBackButtonTitle", color: UIColor.yourColor(), target: weakSelf, action: #selector(YourViewController.tappedBackButton))
// Assign back button with back arrow and image
navigationItem.leftBarButtonItems = CustomBackButton.createWithImage(UIImage(named: "yourImageName")!, color: UIColor.yourColor(), target: weakSelf, action: #selector(YourViewController.tappedBackButton))
func tappedBackButton() {
// Do your thing
self.navigationController!.popViewControllerAnimated(true)
}
CustomBackButtonClass
(code for drawing the back arrow created with Sketch & Paintcode plugin)
class CustomBackButton: NSObject {
class func createWithText(text: String, color: UIColor, target: AnyObject?, action: Selector) -> [UIBarButtonItem] {
let negativeSpacer = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FixedSpace, target: nil, action: nil)
negativeSpacer.width = -8
let backArrowImage = imageOfBackArrow(color: color)
let backArrowButton = UIBarButtonItem(image: backArrowImage, style: UIBarButtonItemStyle.Plain, target: target, action: action)
let backTextButton = UIBarButtonItem(title: text, style: UIBarButtonItemStyle.Plain , target: target, action: action)
backTextButton.setTitlePositionAdjustment(UIOffset(horizontal: -12.0, vertical: 0.0), forBarMetrics: UIBarMetrics.Default)
return [negativeSpacer, backArrowButton, backTextButton]
}
class func createWithImage(image: UIImage, color: UIColor, target: AnyObject?, action: Selector) -> [UIBarButtonItem] {
// recommended maximum image height 22 points (i.e. 22 @1x, 44 @2x, 66 @3x)
let negativeSpacer = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FixedSpace, target: nil, action: nil)
negativeSpacer.width = -8
let backArrowImageView = UIImageView(image: imageOfBackArrow(color: color))
let backImageView = UIImageView(image: image)
let customBarButton = UIButton(frame: CGRectMake(0,0,22 + backImageView.frame.width,22))
backImageView.frame = CGRectMake(22, 0, backImageView.frame.width, backImageView.frame.height)
customBarButton.addSubview(backArrowImageView)
customBarButton.addSubview(backImageView)
customBarButton.addTarget(target, action: action, forControlEvents: .TouchUpInside)
return [negativeSpacer, UIBarButtonItem(customView: customBarButton)]
}
private class func drawBackArrow(frame frame: CGRect = CGRect(x: 0, y: 0, width: 14, height: 22), color: UIColor = UIColor(hue: 0.59, saturation: 0.674, brightness: 0.886, alpha: 1), resizing: ResizingBehavior = .AspectFit) {
/// General Declarations
let context = UIGraphicsGetCurrentContext()!
/// Resize To Frame
CGContextSaveGState(context)
let resizedFrame = resizing.apply(rect: CGRect(x: 0, y: 0, width: 14, height: 22), target: frame)
CGContextTranslateCTM(context, resizedFrame.minX, resizedFrame.minY)
let resizedScale = CGSize(width: resizedFrame.width / 14, height: resizedFrame.height / 22)
CGContextScaleCTM(context, resizedScale.width, resizedScale.height)
/// Line
let line = UIBezierPath()
line.moveToPoint(CGPoint(x: 9, y: 9))
line.addLineToPoint(CGPoint.zero)
CGContextSaveGState(context)
CGContextTranslateCTM(context, 3, 11)
line.lineCapStyle = .Square
line.lineWidth = 3
color.setStroke()
line.stroke()
CGContextRestoreGState(context)
/// Line Copy
let lineCopy = UIBezierPath()
lineCopy.moveToPoint(CGPoint(x: 9, y: 0))
lineCopy.addLineToPoint(CGPoint(x: 0, y: 9))
CGContextSaveGState(context)
CGContextTranslateCTM(context, 3, 2)
lineCopy.lineCapStyle = .Square
lineCopy.lineWidth = 3
color.setStroke()
lineCopy.stroke()
CGContextRestoreGState(context)
CGContextRestoreGState(context)
}
private class func imageOfBackArrow(size size: CGSize = CGSize(width: 14, height: 22), color: UIColor = UIColor(hue: 0.59, saturation: 0.674, brightness: 0.886, alpha: 1), resizing: ResizingBehavior = .AspectFit) -> UIImage {
var image: UIImage
UIGraphicsBeginImageContextWithOptions(size, false, 0)
drawBackArrow(frame: CGRect(origin: CGPoint.zero, size: size), color: color, resizing: resizing)
image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return image
}
private enum ResizingBehavior {
case AspectFit /// The content is proportionally resized to fit into the target rectangle.
case AspectFill /// The content is proportionally resized to completely fill the target rectangle.
case Stretch /// The content is stretched to match the entire target rectangle.
case Center /// The content is centered in the target rectangle, but it is NOT resized.
func apply(rect rect: CGRect, target: CGRect) -> CGRect {
if rect == target || target == CGRect.zero {
return rect
}
var scales = CGSize.zero
scales.width = abs(target.width / rect.width)
scales.height = abs(target.height / rect.height)
switch self {
case .AspectFit:
scales.width = min(scales.width, scales.height)
scales.height = scales.width
case .AspectFill:
scales.width = max(scales.width, scales.height)
scales.height = scales.width
case .Stretch:
break
case .Center:
scales.width = 1
scales.height = 1
}
var result = rect.standardized
result.size.width *= scales.width
result.size.height *= scales.height
result.origin.x = target.minX + (target.width - result.width) / 2
result.origin.y = target.minY + (target.height - result.height) / 2
return result
}
}
}
SWIFT 3.0
class CustomBackButton: NSObject {
class func createWithText(text: String, color: UIColor, target: AnyObject?, action: Selector) -> [UIBarButtonItem] {
let negativeSpacer = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.fixedSpace, target: nil, action: nil)
negativeSpacer.width = -8
let backArrowImage = imageOfBackArrow(color: color)
let backArrowButton = UIBarButtonItem(image: backArrowImage, style: UIBarButtonItemStyle.plain, target: target, action: action)
let backTextButton = UIBarButtonItem(title: text, style: UIBarButtonItemStyle.plain , target: target, action: action)
backTextButton.setTitlePositionAdjustment(UIOffset(horizontal: -12.0, vertical: 0.0), for: UIBarMetrics.default)
return [negativeSpacer, backArrowButton, backTextButton]
}
class func createWithImage(image: UIImage, color: UIColor, target: AnyObject?, action: Selector) -> [UIBarButtonItem] {
// recommended maximum image height 22 points (i.e. 22 @1x, 44 @2x, 66 @3x)
let negativeSpacer = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.fixedSpace, target: nil, action: nil)
negativeSpacer.width = -8
let backArrowImageView = UIImageView(image: imageOfBackArrow(color: color))
let backImageView = UIImageView(image: image)
let customBarButton = UIButton(frame: CGRect(x: 0, y: 0, width: 22 + backImageView.frame.width, height: 22))
backImageView.frame = CGRect(x: 22, y: 0, width: backImageView.frame.width, height: backImageView.frame.height)
customBarButton.addSubview(backArrowImageView)
customBarButton.addSubview(backImageView)
customBarButton.addTarget(target, action: action, for: .touchUpInside)
return [negativeSpacer, UIBarButtonItem(customView: customBarButton)]
}
private class func drawBackArrow(_ frame: CGRect = CGRect(x: 0, y: 0, width: 14, height: 22), color: UIColor = UIColor(hue: 0.59, saturation: 0.674, brightness: 0.886, alpha: 1), resizing: ResizingBehavior = .AspectFit) {
/// General Declarations
let context = UIGraphicsGetCurrentContext()!
/// Resize To Frame
context.saveGState()
let resizedFrame = resizing.apply(CGRect(x: 0, y: 0, width: 14, height: 22), target: frame)
context.translateBy(x: resizedFrame.minX, y: resizedFrame.minY)
let resizedScale = CGSize(width: resizedFrame.width / 14, height: resizedFrame.height / 22)
context.scaleBy(x: resizedScale.width, y: resizedScale.height)
/// Line
let line = UIBezierPath()
line.move(to: CGPoint(x: 9, y: 9))
line.addLine(to: CGPoint.zero)
context.saveGState()
context.translateBy(x: 3, y: 11)
line.lineCapStyle = .square
line.lineWidth = 3
color.setStroke()
line.stroke()
context.restoreGState()
/// Line Copy
let lineCopy = UIBezierPath()
lineCopy.move(to: CGPoint(x: 9, y: 0))
lineCopy.addLine(to: CGPoint(x: 0, y: 9))
context.saveGState()
context.translateBy(x: 3, y: 2)
lineCopy.lineCapStyle = .square
lineCopy.lineWidth = 3
color.setStroke()
lineCopy.stroke()
context.restoreGState()
context.restoreGState()
}
private class func imageOfBackArrow(_ size: CGSize = CGSize(width: 14, height: 22), color: UIColor = UIColor(hue: 0.59, saturation: 0.674, brightness: 0.886, alpha: 1), resizing: ResizingBehavior = .AspectFit) -> UIImage {
var image: UIImage
UIGraphicsBeginImageContextWithOptions(size, false, 0)
drawBackArrow(CGRect(origin: CGPoint.zero, size: size), color: color, resizing: resizing)
image = UIGraphicsGetImageFromCurrentImageContext()!
UIGraphicsEndImageContext()
return image
}
private enum ResizingBehavior {
case AspectFit /// The content is proportionally resized to fit into the target rectangle.
case AspectFill /// The content is proportionally resized to completely fill the target rectangle.
case Stretch /// The content is stretched to match the entire target rectangle.
case Center /// The content is centered in the target rectangle, but it is NOT resized.
func apply(_ rect: CGRect, target: CGRect) -> CGRect {
if rect == target || target == CGRect.zero {
return rect
}
var scales = CGSize.zero
scales.width = abs(target.width / rect.width)
scales.height = abs(target.height / rect.height)
switch self {
case .AspectFit:
scales.width = min(scales.width, scales.height)
scales.height = scales.width
case .AspectFill:
scales.width = max(scales.width, scales.height)
scales.height = scales.width
case .Stretch:
break
case .Center:
scales.width = 1
scales.height = 1
}
var result = rect.standardized
result.size.width *= scales.width
result.size.height *= scales.height
result.origin.x = target.minX + (target.width - result.width) / 2
result.origin.y = target.minY + (target.height - result.height) / 2
return result
}
}
}
You can use ReactPDF
Lets you convert a div into PDF with ease. You will need to match your existing markup to use ReactPDF markup, but it is worth it.
q = [1, 2, 3, 4, 1, 2, 5, 1, 2, 3, 4, 5]
vm = [-1, -1, -1, -1,1,2,3,1]
p = []
for v in vm:
if v in q:
p.append(q.index(v))
else:
p.append(99999)
print p
p = [q.index(v) if v in q else 99999 for v in vm]
print p
Output:
[99999, 99999, 99999, 99999, 0, 1, 2, 0]
[99999, 99999, 99999, 99999, 0, 1, 2, 0]
Instead of using append()
in the list comprehension you can reference the p as direct output, and use q.index(v)
and 99999
in the LC.
Not sure if this is intentional but note that q.index(v)
will find just the first occurrence of v
, even tho you have several in q
. If you want to get the index of all v
in q
, consider using a enumerator
and a list of already visited indexes
Something in those lines(pseudo-code):
visited = []
for i, v in enumerator(vm):
if i not in visited:
p.append(q.index(v))
else:
p.append(q.index(v,max(visited))) # this line should only check for v in q after the index of max(visited)
visited.append(i)
I actually tried to implement connection pooling on the django end using:
https://github.com/gmcguire/django-db-pool
but I still received this error, despite lowering the number of connections available to below the standard development DB quota of 20 open connections.
There is an article here about how to move your postgresql database to the free/cheap tier of Amazon RDS. This would allow you to set max_connections
higher. This will also allow you to pool connections at the database level using PGBouncer.
https://www.lewagon.com/blog/how-to-migrate-heroku-postgres-database-to-amazon-rds
UPDATE:
Heroku responded to my open ticket and stated that my database was improperly load balanced in their network. They said that improvements to their system should prevent similar problems in the future. Nonetheless, support manually relocated my database and performance is noticeably improved.
Assuming a Css class of "image" :
input.image {
background: url(/i/bg.png) no-repeat top left;
width: /* img-width */;
height: /* img-height */
}
If you don't know what the image width and height are, you can set this dynamically with javascript.
One thing I've noticed that I don't see in the documentation is using
background: url("image.png")
short hand like above if the image is not found it sends a 302 code instead of being ignored like it is if you use
background-image: url("image.png")
Currently I'm using this solution:
$firstDay = new \DateTime('first day of this month');
$lastDay = new \DateTime('last day of this month');
The only issue I came upon is that strange time is being set. I needed correct range for our search interface and I ended up with this:
$firstDay = new \DateTime('first day of this month 00:00:00');
$lastDay = new \DateTime('first day of next month 00:00:00');
Errr, it's a bit messy in the view. But I think I've gotten it to work with group (http://mongoid.org/docs/querying/)
Controller
@event_attendees = Activity.only(:user_id).where(:action => 'Attend').order_by(:created_at.desc).group
View
<% @event_attendees.each do |event_attendee| %>
<%= event_attendee['group'].first.user.first_name %>
<% end %>
Maybe you can leverage the std::bitset
type available in C++11. It can be used to represent a fixed sequence of N
bits, which can be manipulated by conventional logic.
#include<iostream>
#include<bitset>
class MissileLauncher {
public:
MissileLauncher() {}
void show_bits() const {
std::cout<<m_abc[2]<<", "<<m_abc[1]<<", "<<m_abc[0]<<std::endl;
}
bool toggle_a() {
// toggles (i.e., flips) the value of `a` bit and returns the
// resulting logical value
m_abc[0].flip();
return m_abc[0];
}
bool toggle_c() {
// toggles (i.e., flips) the value of `c` bit and returns the
// resulting logical value
m_abc[2].flip();
return m_abc[2];
}
bool matches(const std::bitset<3>& mask) {
// tests whether all the bits specified in `mask` are turned on in
// this instance's bitfield
return ((m_abc & mask) == mask);
}
private:
std::bitset<3> m_abc;
};
typedef std::bitset<3> Mask;
int main() {
MissileLauncher ml;
// notice that the bitset can be "built" from a string - this masks
// can be made available as constants to test whether certain bits
// or bit combinations are "on" or "off"
Mask has_a("001"); // the zeroth bit
Mask has_b("010"); // the first bit
Mask has_c("100"); // the second bit
Mask has_a_and_c("101"); // zeroth and second bits
Mask has_all_on("111"); // all on!
Mask has_all_off("000"); // all off!
// I can even create masks using standard logic (in this case I use
// the or "|" operator)
Mask has_a_and_b = has_a | has_b;
std::cout<<"This should be 011: "<<has_a_and_b<<std::endl;
// print "true" and "false" instead of "1" and "0"
std::cout<<std::boolalpha;
std::cout<<"Bits, as created"<<std::endl;
ml.show_bits();
std::cout<<"is a turned on? "<<ml.matches(has_a)<<std::endl;
std::cout<<"I will toggle a"<<std::endl;
ml.toggle_a();
std::cout<<"Resulting bits:"<<std::endl;
ml.show_bits();
std::cout<<"is a turned on now? "<<ml.matches(has_a)<<std::endl;
std::cout<<"are both a and c on? "<<ml.matches(has_a_and_c)<<std::endl;
std::cout<<"Toggle c"<<std::endl;
ml.toggle_c();
std::cout<<"Resulting bits:"<<std::endl;
ml.show_bits();
std::cout<<"are both a and c on now? "<<ml.matches(has_a_and_c)<<std::endl;
std::cout<<"but, are all bits on? "<<ml.matches(has_all_on)<<std::endl;
return 0;
}
Compiling using gcc 4.7.2
g++ example.cpp -std=c++11
I get:
This should be 011: 011
Bits, as created
false, false, false
is a turned on? false
I will toggle a
Resulting bits:
false, false, true
is a turned on now? true
are both a and c on? false
Toggle c
Resulting bits:
true, false, true
are both a and c on now? true
but, are all bits on? false
"Proper way to declare custom exceptions in modern Python?"
This is fine, unless your exception is really a type of a more specific exception:
class MyException(Exception):
pass
Or better (maybe perfect), instead of pass
give a docstring:
class MyException(Exception):
"""Raise for my specific kind of exception"""
From the docs
Exception
All built-in, non-system-exiting exceptions are derived from this class. All user-defined exceptions should also be derived from this class.
That means that if your exception is a type of a more specific exception, subclass that exception instead of the generic Exception
(and the result will be that you still derive from Exception
as the docs recommend). Also, you can at least provide a docstring (and not be forced to use the pass
keyword):
class MyAppValueError(ValueError):
'''Raise when my specific value is wrong'''
Set attributes you create yourself with a custom __init__
. Avoid passing a dict as a positional argument, future users of your code will thank you. If you use the deprecated message attribute, assigning it yourself will avoid a DeprecationWarning
:
class MyAppValueError(ValueError):
'''Raise when a specific subset of values in context of app is wrong'''
def __init__(self, message, foo, *args):
self.message = message # without this you may get DeprecationWarning
# Special attribute you desire with your Error,
# perhaps the value that caused the error?:
self.foo = foo
# allow users initialize misc. arguments as any other builtin Error
super(MyAppValueError, self).__init__(message, foo, *args)
There's really no need to write your own __str__
or __repr__
. The builtin ones are very nice, and your cooperative inheritance ensures that you use it.
Maybe I missed the question, but why not:
class MyException(Exception):
pass
Again, the problem with the above is that in order to catch it, you'll either have to name it specifically (importing it if created elsewhere) or catch Exception, (but you're probably not prepared to handle all types of Exceptions, and you should only catch exceptions you are prepared to handle). Similar criticism to the below, but additionally that's not the way to initialize via super
, and you'll get a DeprecationWarning
if you access the message attribute:
Edit: to override something (or pass extra args), do this:
class ValidationError(Exception):
def __init__(self, message, errors):
# Call the base class constructor with the parameters it needs
super(ValidationError, self).__init__(message)
# Now for your custom code...
self.errors = errors
That way you could pass dict of error messages to the second param, and get to it later with e.errors
It also requires exactly two arguments to be passed in (aside from the self
.) No more, no less. That's an interesting constraint that future users may not appreciate.
To be direct - it violates Liskov substitutability.
I'll demonstrate both errors:
>>> ValidationError('foo', 'bar', 'baz').message
Traceback (most recent call last):
File "<pyshell#10>", line 1, in <module>
ValidationError('foo', 'bar', 'baz').message
TypeError: __init__() takes exactly 3 arguments (4 given)
>>> ValidationError('foo', 'bar').message
__main__:1: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
'foo'
Compared to:
>>> MyAppValueError('foo', 'FOO', 'bar').message
'foo'
I was able to remove my pods in the project using the CocoaPods app (Version 1.5.2). Afterwards I only deleted the podfile, podfile.lock and xcworkspace files in the folder.
You can't do this: {this.state.arrayFromJson}
As your error suggests what you are trying to do is not valid. You are trying to render the whole array as a React child. This is not valid. You should iterate through the array and render each element. I use .map
to do that.
I am pasting a link from where you can learn how to render elements from an array with React.
http://jasonjl.me/blog/2015/04/18/rendering-list-of-elements-in-react-with-jsx/
Hope it helps!
I am here by separating both the usages by marking them as File Read(java.io) and Resource Read(ClassLoader.getResourceAsStream()).
File Read - 1. Works on local file system. 2. Tries to locate the file requested from current JVM launched directory as root 3. Ideally good when using files for processing in a pre-determined location like,/dev/files or C:\Data.
Resource Read - 1. Works on class path 2. Tries to locate the file/resource in current or parent classloader classpath. 3. Ideally good when trying to load files from packaged files like war or jar.
I guess the easiest and most basic way is this
import math
number = int (input ('Enter number: '))
if number % 2 == 0 and number != 0:
print ('Even number')
elif number == 0:
print ('Zero is neither even, nor odd.')
else:
print ('Odd number')
Just basic conditions and math. It also minds zero, which is neither even, nor odd and you give any number you want by input so it's very variable.
The problem is the charset that is being used by apache to serve the pages. I work with Linux, so I don't know anything about XAMPP. I had the same problem too, what I did to solve the problem was to add the charset to the charset
config file (It is commented by default).
In my case I have it in /etc/apache2/conf.d/charset
but, since you're using Windows the location is different. So I'm giving you this like an idea of how to solve it.
At the end, my charset config file is like this:
# Read the documentation before enabling AddDefaultCharset.
# In general, it is only a good idea if you know that all your files
# have this encoding. It will override any encoding given in the files
# in meta http-equiv or xml encoding tags.
AddDefaultCharset UTF-8
I hope it helps.
Final working solution:
public static String getFileName(Uri uri) {
try {
String path = uri.getLastPathSegment();
return path != null ? path.substring(path.lastIndexOf("/") + 1) : "unknown";
} catch (Exception e) {
e.printStackTrace();
}
return "unknown";
}
$ pip3 install pypiwin32
Sometimes using pip3
also works if just pip
by itself is not working.
fileConn<-file("output.txt")
writeLines(c("Hello","World"), fileConn)
close(fileConn)
I changed windows password today then Tortoise declined to connect me to SVN server. I got around it by opening a Dos box and doing an "svn co ...". It prompted for the new credential then happily did its work. After that, Tortoise works also.
HTML:
<label><input type="radio" id="opt1" name="opt1" value="1"> A label</label>
CSS:
label input[type="radio"] { vertical-align: text-bottom; }
There are already a lot of great answers here but it's worth mentioning a simple and quick way to get the SQL Server Database size with SQL Server Management Studio (SSMS) using a standard report.
To run a report you need:
It prints a nice report:
Where the Total space Reserved is the total size of the database on the disk and it includes the size of all data files and the size of all transaction log files.
Under the hood, SSMS uses dbo.sysfiles view or sys.database_files view (depending on the version of MSSQL) and some kind of this query to get the Total space Reserved value:
SELECT sum((convert(dec (19, 2),
convert(bigint,SIZE))) * 8192 / 1048576.0) db_size_mb
FROM dbo.sysfiles;
change Date to Object which is between parenthesis
The way to do this is by using background-size so in your case:
background-size: 50% 50%;
or
You can set the width and the height of the elements to percentages as well
It is the CSS child selector. Example:
div > p
selects all paragraphs that are direct children of div.
See this
Yes. You'd use the urllib2
module, and encode using the multipart/form-data
content type. Here is some sample code to get you started -- it's a bit more than just file uploading, but you should be able to read through it and see how it works:
user_agent = "image uploader"
default_message = "Image $current of $total"
import logging
import os
from os.path import abspath, isabs, isdir, isfile, join
import random
import string
import sys
import mimetypes
import urllib2
import httplib
import time
import re
def random_string (length):
return ''.join (random.choice (string.letters) for ii in range (length + 1))
def encode_multipart_data (data, files):
boundary = random_string (30)
def get_content_type (filename):
return mimetypes.guess_type (filename)[0] or 'application/octet-stream'
def encode_field (field_name):
return ('--' + boundary,
'Content-Disposition: form-data; name="%s"' % field_name,
'', str (data [field_name]))
def encode_file (field_name):
filename = files [field_name]
return ('--' + boundary,
'Content-Disposition: form-data; name="%s"; filename="%s"' % (field_name, filename),
'Content-Type: %s' % get_content_type(filename),
'', open (filename, 'rb').read ())
lines = []
for name in data:
lines.extend (encode_field (name))
for name in files:
lines.extend (encode_file (name))
lines.extend (('--%s--' % boundary, ''))
body = '\r\n'.join (lines)
headers = {'content-type': 'multipart/form-data; boundary=' + boundary,
'content-length': str (len (body))}
return body, headers
def send_post (url, data, files):
req = urllib2.Request (url)
connection = httplib.HTTPConnection (req.get_host ())
connection.request ('POST', req.get_selector (),
*encode_multipart_data (data, files))
response = connection.getresponse ()
logging.debug ('response = %s', response.read ())
logging.debug ('Code: %s %s', response.status, response.reason)
def make_upload_file (server, thread, delay = 15, message = None,
username = None, email = None, password = None):
delay = max (int (delay or '0'), 15)
def upload_file (path, current, total):
assert isabs (path)
assert isfile (path)
logging.debug ('Uploading %r to %r', path, server)
message_template = string.Template (message or default_message)
data = {'MAX_FILE_SIZE': '3145728',
'sub': '',
'mode': 'regist',
'com': message_template.safe_substitute (current = current, total = total),
'resto': thread,
'name': username or '',
'email': email or '',
'pwd': password or random_string (20),}
files = {'upfile': path}
send_post (server, data, files)
logging.info ('Uploaded %r', path)
rand_delay = random.randint (delay, delay + 5)
logging.debug ('Sleeping for %.2f seconds------------------------------\n\n', rand_delay)
time.sleep (rand_delay)
return upload_file
def upload_directory (path, upload_file):
assert isabs (path)
assert isdir (path)
matching_filenames = []
file_matcher = re.compile (r'\.(?:jpe?g|gif|png)$', re.IGNORECASE)
for dirpath, dirnames, filenames in os.walk (path):
for name in filenames:
file_path = join (dirpath, name)
logging.debug ('Testing file_path %r', file_path)
if file_matcher.search (file_path):
matching_filenames.append (file_path)
else:
logging.info ('Ignoring non-image file %r', path)
total_count = len (matching_filenames)
for index, file_path in enumerate (matching_filenames):
upload_file (file_path, index + 1, total_count)
def run_upload (options, paths):
upload_file = make_upload_file (**options)
for arg in paths:
path = abspath (arg)
if isdir (path):
upload_directory (path, upload_file)
elif isfile (path):
upload_file (path)
else:
logging.error ('No such path: %r' % path)
logging.info ('Done!')
the simple way I found out: add a "li" tag on the right side of an "a" tag List item
<li></span><a><span id="expand1"></span></a></li>
On CSS file create this below:
#expand1 {
padding-left: 40px;
}
if you are using gridview then you can show only the time with DataFormatString="{0:t}"
example:
By bind the value:-
<asp:Label ID="lblreg" runat="server" Text='<%#Eval("Registration_Time ", "{0:t}") %>'></asp:Label>
By bound filed:-
<asp:BoundField DataField=" Registration_Time" HeaderText="Brithday" SortExpression=" Registration Time " DataFormatString="{0:t}"/>
The same error appears if you do not use the correct (numeric) format of your data in your data.frame column using mean()
function. Therefore, check your data using str(data.frame&column)
function to see what data type you have, and convert it to numeric format if necessary.
For example, if your data is Character convert it with as.numeric(data.frame$column)
, or as a factor with as.numeric(as.character(data.frame$column))
. The mean function does not work with types other than numeric.
THIS_DIR := $(dir $(abspath $(firstword $(MAKEFILE_LIST))))
I think throw a new error is good approach to stop execution rather than just return or return false. For ex. I am validating a number of files that I only allow max five files for upload in separate function.
validateMaxNumber: function(length) {
if (5 >= length) {
// Continue execution
}
// Flash error message and stop execution
// Can't stop execution by return or return false statement;
let message = "No more than " + this.maxNumber + " File is allowed";
throw new Error(message);
}
But I am calling this function from main flow function as
handleFilesUpload() {
let files = document.getElementById("myFile").files;
this.validateMaxNumber(files.length);
}
In the above example I can't stop execution unless I throw new Error.Just return or return false only works if you are in main function of execution otherwise it doesn't work.
Jupyter is base on ipython, a permanent solution could be changing the ipython config options.
Create a config file
$ ipython profile create
$ ipython locate
/Users/username/.ipython
Edit the config file
$ cd /Users/username/.ipython
$ vi profile_default/ipython_config.py
The following lines allow you to add your module path to sys.path
c.InteractiveShellApp.exec_lines = [
'import sys; sys.path.append("/path/to/your/module")'
]
At the jupyter startup the previous line will be executed
Here you can find more details about ipython config https://www.lucypark.kr/blog/2013/02/10/when-python-imports-and-ipython-does-not/
Generally what's meant by that is a fairly intimate familiarity with one (or probably more) of the .NET languages (C#, VB.NET, etc.) and one (or less probably more) of the .NET stacks (WinForms, ASP.NET, WPF, etc.).
As for a specific "formal definition", I don't think you'll find one beyond that. The job description should be specific about what they're looking for. I wouldn't consider a job listing that asks for a ".NET developer" and provides no more detail than that to be sufficiently descriptive.
kwargs are a syntactic sugar to pass name arguments as dictionaries(for func), or dictionaries as named arguments(to func)
max_allowed_packet
is set in mysql config, not on php side
[mysqld]
max_allowed_packet=16M
You can see it's curent value in mysql like this:
SHOW VARIABLES LIKE 'max_allowed_packet';
You can try to change it like this, but it's unlikely this will work on shared hosting:
SET GLOBAL max_allowed_packet=16777216;
You can read about it here http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html
EDIT
The [mysqld] is necessary to make the max_allowed_packet
working since at least mysql version 5.5.
Recently setup an instance on AWS EC2 with Drupal and Solr Search Engine, which required 32M max_allowed_packet
. It you set the value under [mysqld_safe]
(which is default settings came with the mysql installation) mode in /etc/my.cnf, it did no work. I did not dig into the problem. But after I change it to [mysqld]
and restarted the mysqld, it worked.
What is your opinion to use express-generator it will generate skeleton project to start with, without deprecated messages
appeared in your log
run this command
npm install express-generator -g
Now, create new Express.js starter application by type this command in your Node projects folder
.
express node-express-app
That command tell express to generate new Node.js application with the name node-express-app
.
then Go to the newly created project directory
, install npm packages
and start the app
using the command
cd node-express-app && npm install && npm start
Doing the above :
x = x[~numpy.isnan(x)]
or
x = x[numpy.logical_not(numpy.isnan(x))]
I found that resetting to the same variable (x) did not remove the actual nan values and had to use a different variable. Setting it to a different variable removed the nans. e.g.
y = x[~numpy.isnan(x)]
If the label is in a table row you can do this to hide the row:
('.InputFile').parent().Hide()
You can refine your selector as you need and then get the table row that contains that element.
JQuery Selectors help: http://api.jquery.com/category/selectors/
EDIT This is the correct way to do it.
('.InputFile').parents('tr').hide()
you have to use bash instead or rewrite your script using standard sh
sh -c 'test "$choose" = "y" -o "$choose" = "Y"'
TL;DR: also ensure that your id_rsa.pub
is in ascii / UTF-8.
I had the same problem, however the accepted answer alone did not work because of the text encoding, which was an additional, easy-to-miss issue.
When I run
ssh-keygen -f ~/.ssh/id_rsa -y > ~/.ssh/id_rsa.pub
in Windows PowerShell, it saves the output to id_rsa.pub
in UTF-16 LE BOM encoding, not in UTF-8. This is a property of some installations of PowerShell, which was discussed in Using PowerShell to write a file in UTF-8 without the BOM. Apparently, OpenSSH does not recognise the former text encoding and produces an identical error:
key_load_public: invalid format
Copying and pasting the output of ssh-keygen -f ~/.ssh/id_rsa -y
into a text editor is the simplest way to solve this.
P.S. This could be an addition to the accepted answer, but I don't have enough karma to comment here yet.
One easy way is to add a pass of tr
to squeeze any repeated field separators out:
$ ps | egrep 11383 | tr -s ' ' | cut -d ' ' -f 4
If you just want to apply a function to each element and put the results in an output array, you can use arrayfun
.
As others have pointed out, for most operations, it's best to avoid loops in MATLAB and vectorise your code instead.
Chris Stewart wrote there:
Splash screens just waste your time, right? As an Android developer, when I see a splash screen, I know that some poor dev had to add a three-second delay to the code.
Then, I have to stare at some picture for three seconds until I can use the app. And I have to do this every time it’s launched. I know which app I opened. I know what it does. Just let me use it!
Splash Screens the Right Way
I believe that Google isn’t contradicting itself; the old advice and the new stand together. (That said, it’s still not a good idea to use a splash screen that wastes a user’s time. Please don’t do that.)
However, Android apps do take some amount of time to start up, especially on a cold start. There is a delay there that you may not be able to avoid. Instead of leaving a blank screen during this time, why not show the user something nice? This is the approach Google is advocating. Don’t waste the user’s time, but don’t show them a blank, unconfigured section of the app the first time they launch it, either.
If you look at recent updates to Google apps, you’ll see appropriate uses of the splash screen. Take a look at the YouTube app, for example.
Using my approach, you can write the button click event handler in the 'classical way', just like how you did it in VB or MFC ;)
Suppose we have a class for a frame window which contains 2 buttons:
class MainWindow {
Jbutton searchButton;
Jbutton filterButton;
}
You can use my 'router' class to route the event back to your MainWindow class:
class MainWindow {
JButton searchButton;
Jbutton filterButton;
ButtonClickRouter buttonRouter = new ButtonClickRouter(this);
void initWindowContent() {
// create your components here...
// setup button listeners
searchButton.addActionListener(buttonRouter);
filterButton.addActionListener(buttonRouter);
}
void on_searchButton() {
// TODO your handler goes here...
}
void on_filterButton() {
// TODO your handler goes here...
}
}
Do you like it? :)
If you like this way and hate the Java's anonymous subclass way, then you are as old as I am. The problem of 'addActionListener(new ActionListener {...})' is that it squeezes all button handlers into one outer method which makes the programme look wired. (in case you have a number of buttons in one window)
Finally, the router class is at below. You can copy it into your programme without the need for any update.
Just one thing to mention: the button fields and the event handler methods must be accessible to this router class! To simply put, if you copy this router class in the same package of your programme, your button fields and methods must be package-accessible. Otherwise, they must be public.
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
public class ButtonClickRouter implements ActionListener {
private Object target;
ButtonClickRouter(Object target) {
this.target = target;
}
@Override
public void actionPerformed(ActionEvent actionEvent) {
// get source button
Object sourceButton = actionEvent.getSource();
// find the corresponding field of the button in the host class
Field fieldOfSourceButton = null;
for (Field field : target.getClass().getDeclaredFields()) {
try {
if (field.get(target).equals(sourceButton)) {
fieldOfSourceButton = field;
break;
}
} catch (IllegalAccessException e) {
}
}
if (fieldOfSourceButton == null)
return;
// make the expected method name for the source button
// rule: suppose the button field is 'searchButton', then the method
// is expected to be 'void on_searchButton()'
String methodName = "on_" + fieldOfSourceButton.getName();
// find such a method
Method expectedHanderMethod = null;
for (Method method : target.getClass().getDeclaredMethods()) {
if (method.getName().equals(methodName)) {
expectedHanderMethod = method;
break;
}
}
if (expectedHanderMethod == null)
return;
// fire
try {
expectedHanderMethod.invoke(target);
} catch (IllegalAccessException | InvocationTargetException e) { }
}
}
I'm a beginner in Java (not in programming), so maybe there are anything inappropriate in the above code. Review it before using it, please.
I need a list of files that had changed content between two commits (only added or modified), so I used:
git diff --name-only --diff-filter=AM <commit hash #1> <commit hash #2>
The different diff-filter options from the git diff documentation:
diff-filter=[(A|C|D|M|R|T|U|X|B)…?[*]]
Select only files that are Added (A), Copied (C), Deleted (D), Modified (M), Renamed (R), have their type (i.e. regular file, symlink, submodule, …?) changed (T), are Unmerged (U), are Unknown (X), or have had their pairing Broken (B). Any combination of the filter characters (including none) can be used. When * (All-or-none) is added to the combination, all paths are selected if there is any file that matches other criteria in the comparison; if there is no file that matches other criteria, nothing is selected.
Also, these upper-case letters can be downcased to exclude. E.g. --diff-filter=ad excludes added and deleted paths.
If you want to list the status as well (e.g. A / M), change --name-only
to --name-status
.
Your code looks fine, but there are a couple of things to be aware of:
Post::find($id);
acts upon the primary key, if you have set your primary key in your model to something other than id
by doing:
protected $primaryKey = 'slug';
then find
will search by that key instead.
Laravel also expects the id
to be an integer, if you are using something other than an integer (such as a string) you need to set the incrementing property on your model to false:
public $incrementing = false;
Another solution is to override the default environment configuration file path.
I find it the best solution for the of non-trivial-path configuration file load, specifically the best way to attach configuration file to dll.
AppDomain.CurrentDomain.SetData("APP_CONFIG_FILE", <Full_Path_To_The_Configuration_File>);
Example:
AppDomain.CurrentDomain.SetData("APP_CONFIG_FILE", @"C:\Shared\app.config");
More details may be found at this blog.
Additionally, this other answer has an excellent solution, complete with code to refresh
the app config and an IDisposable
object to reset it back to it's original state. With this
solution, you can keep the temporary app config scoped:
using(AppConfig.Change(tempFileName))
{
// tempFileName is used for the app config during this context
}
For the record: When you add an import, you are also indicating your dependencies.
You could see quickly what are the dependencies of files (excluding classes of the same namespace).
TextPad has a free xmltidy plugin that pretty-prints your XML. Nice and fast, although TextPad is shareware.
Swift iOS:
// get server url from the plist directory
var htmlFile = NSBundle.mainBundle().pathForResource("animation_bg", ofType: "html")!
var htmlString = NSString(contentsOfFile: htmlFile, encoding: NSUTF8StringEncoding, error: nil)
self.webView.loadHTMLString(htmlString, baseURL: nil)
In addition to a performance considerations, there's a functional difference too. When you join comments, you are asking for posts that have comments- an inner join by default. When you include comments, you are asking for all posts- an outer join.
Use the following steps to select the database:
mysql -u username -p
it will prompt for password, Please enter password. Now list all the databases
show databases;
select the database which you want to select using the command:
use databaseName;
select data from any table:
select * from tableName limit 10;
You can select your database using the command use photogallery;
Thanks !
You could do this:
SELECT t.name AS table_name,
SCHEMA_NAME(schema_id) AS schema_name,
c.name AS column_name
FROM sys.tables AS t
INNER JOIN sys.columns c ON t.OBJECT_ID = c.OBJECT_ID
WHERE c.name LIKE '%MyColumn%'
ORDER BY schema_name, table_name;
Reference:
Remove the -it
from your cli to make it non interactive and remove the TTY. If you don't need either, e.g. running your command inside of a Jenkins or cron script, you should do this.
Or you can change it to -i
if you have input piped into the docker command that doesn't come from a TTY. If you have something like xyz | docker ...
or docker ... <input
in your command line, do this.
Or you can change it to -t
if you want TTY support but don't have it available on the input device. Do this for apps that check for a TTY to enable color formatting of the output in your logs, or for when you later attach to the container with a proper terminal.
Or if you need an interactive terminal and aren't running in a terminal on Linux or MacOS, use a different command line interface. PowerShell is reported to include this support on Windows.
What is a TTY? It's a terminal interface that supports escape sequences, moving the cursor around, etc, that comes from the old days of dumb terminals attached to mainframes. Today it is provided by the Linux command terminals and ssh interfaces. See the wikipedia article for more details.
To see the difference of running a container with and without a TTY, run a container without one: docker run --rm -i ubuntu bash
. From inside that container, install vim with apt-get update; apt-get install vim
. Note the lack of a prompt. When running vim against a file, try to move the cursor around within the file.
I want to share with you a benchmark I have done among Picasso, Universal Image Loader and Glide: https://bit.ly/1kQs3QN
Fresco was out of the benchmark because for the project I was running the test, we didn't want to refactor our layouts (because of the Drawee view).
What I recommend is Universal Image Loader because of its customization, memory consumption and balance between size and methods.
If you have a small project, I would go for Glide (or give Fresco a try).
You have two options for displaying the Map
For showing local POIs around a Lat, Long use Places APIs
For most of the people who are more familiar with MariaDB or MySQL this seems little confusing because in MariaDB or MySQL they have different schemas (which includes different tables, view , PLSQL blocks and DB objects etc) and USERS are the accounts which can access those schema. Therefore no specific user can belong to any particular schema. The permission has be to given to that Schema then the user can access it. The Users and Schema is separated in databases like MySQL and MariaDB.
In Oracle schema and users are almost treated as same. To work with that schema you need to have the permission which is where you will feel that the schema name is nothing but user name. Permissions can be given across schemas to access different database objects from different schema. In oracle we can say that a user owns a schema because when you create a user you create DB objects for it and vice a versa.
You could definitely append data into an existing table. (But it is actually not an append at the HDFS level). It's just that whenever you do a LOAD or INSERT operation on an existing Hive table without OVERWRITE
clause the new data will be put without replacing the old data. A new file will be created for this newly inserted data inside the directory corresponding to that table. For example :
I have a file named demo.txt which has 2 lines :
ABC
XYZ
Create a table and load this file into it
hive> create table demo(foo string);
hive> load data inpath '/demo.txt' into table demo;
Now,if I do a SELECT on this table it'll give me :
hive> select * from demo;
OK
ABC
XYZ
Suppose, I have one more file named demo2.txt which has :
PQR
And I do a LOAD again on this table without using overwrite,
hive> load data inpath '/demo2.txt' into table demo;
Now, if I do a SELECT now, it'll give me,
hive> select * from demo;
OK
ABC
XYZ
PQR
HTH
Why not just: z/
That will highlight the current word under cursor and any other occurrences. And you don't have to give a separate command for each item you're searching for. Perhaps that's not available in the unholy gvim? It's in vim by default.
* is only good if you want the cursor to move to the next occurrence. When comparing two things visually you often don't want the cursor to move, and it's annoying to hit the * key every time.
$this
variable in PHP is to try it against the interpreter in various contexts:print isset($this); //true, $this exists
print gettype($this); //Object, $this is an object
print is_array($this); //false, $this isn't an array
print get_object_vars($this); //true, $this's variables are an array
print is_object($this); //true, $this is still an object
print get_class($this); //YourProject\YourFile\YourClass
print get_parent_class($this); //YourBundle\YourStuff\YourParentClass
print gettype($this->container); //object
print_r($this); //delicious data dump of $this
print $this->yourvariable //access $this variable with ->
So the $this
pseudo-variable has the Current Object's method's and properties. Such a thing is useful because it lets you access all member variables and member methods inside the class. For example:
Class Dog{
public $my_member_variable; //member variable
function normal_method_inside_Dog() { //member method
//Assign data to member variable from inside the member method
$this->my_member_variable = "whatever";
//Get data from member variable from inside the member method.
print $this->my_member_variable;
}
}
$this
is reference to a PHP Object
that was created by the interpreter for you, that contains an array of variables.
If you call $this
inside a normal method in a normal class, $this
returns the Object (the class) to which that method belongs.
It's possible for $this
to be undefined if the context has no parent Object.
php.net has a big page talking about PHP object oriented programming and how $this
behaves depending on context.
https://www.php.net/manual/en/language.oop5.basic.php
The solution is much simpler:
$('#date').datepicker({
startDate: "now()"
});
Try Online Demo and fill input Start date: now()
Well using find is the best option here
just simply use like this
$(".class").click(function(){
$("this").find('.subclass').css("visibility","visible");
})
and if there are many classes with the same name class its always better to give the class name of parent class like this
$(".parent .class").click(function(){
$("this").find('.subclass').css("visibility","visible");
})
Open in new tab using javascript
<button onclick="window.open('https://www.our-url.com')" id="myButton"
class="btn request-callback" >Explore More </button>
Functional requirements are those which are related to the technical functionality of the system.
non-functional requirement is a requirement that specifies criteria that can be used to judge the operation of a system in particular conditions, rather than specific behaviors.
For example if you consider a shopping site, adding items to cart, browsing different items, applying offers and deals and successfully placing orders comes under functional requirements.
Where as performance of the system in peak hours, time taken for the system to retrieve data from DB, security of the user data, ability of the system to handle if large number of users login comes under non functional requirements.
You can use StreamReader.ReadToEnd()
,
using (Stream stream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream, Encoding.UTF8);
String responseString = reader.ReadToEnd();
}
listview.setOnItemLongClickListener(new OnItemLongClickListener() {
@Override
public boolean onItemLongClick(final AdapterView<?> parent, View view,
final int position, long id) {
// TODO Auto-generated method stub
parent.getChildAt(position).setBackgroundColor(getResources().getColor(R.color.listlongclick_selection));
return false;
}
});
SELECT
resultIn the Navigator, right click on the table > Table Data Export Wizard
All columns and rows are included by default, so click on Next.
Select File Path, type, Field Separator (by default it is ;
, not ,
!!!) and click on Next.
Click Next > Next > Finish and the file is created in the specified location
\s
means "one space", and \s+
means "one or more spaces".
But, because you're using the /g
flag (replace all occurrences) and replacing with the empty string, your two expressions have the same effect.