From the keytool man - it imports certificate chain, if input is given in PKCS#7 format, otherwise only the single certificate is imported. You should be able to convert certificates to PKCS#7 format with openssl, via openssl crl2pkcs7 command.
put your CA & root certificate in /usr/share/ca-certificate or /usr/local/share/ca-certificate. Then
dpkg-reconfigure ca-certificates
or even reinstall ca-certificate package with apt-get.
After doing this your certificate is collected into system's DB: /etc/ssl/certs/ca-certificates.crt
Then everything should be fine.
The value of the certificate comes mostly from the trust of the internet users in the issuer of the certificate. To that end, Verisign is tough to beat. A certificate says to the client that you are who you say you are, and the issuer has verified that to be true.
You can get a free SSL certificate signed, for example, by StartSSL. This is an improvement on self-signed certificates, because your end-users would stop getting warning pop-ups informing them of a suspicious certificate on your end. However, the browser bar is not going to turn green when communicating with your site over https, so this solution is not ideal.
The cheapest SSL certificate that turns the bar green will cost you a few hundred dollars, and you would need to go through a process of proving the identity of your company to the issuer of the certificate by submitting relevant documents.
I came across the same issue installing my signed certificate on an Amazon Elastic Load Balancer instance.
All seemed find via a browser (Chrome) but accessing the site via my java client produced the exception javax.net.ssl.SSLPeerUnverifiedException
What I had not done was provide a "certificate chain" file when installing my certificate on my ELB instance (see https://serverfault.com/questions/419432/install-ssl-on-amazon-elastic-load-balancer-with-godaddy-wildcard-certificate)
We were only sent our signed public key from the signing authority so I had to create my own certificate chain file. Using my browser's certificate viewer panel I exported each certificate in the signing chain. (The order of the certificate chain in important, see https://forums.aws.amazon.com/message.jspa?messageID=222086)
Here is a link to VeriSign's SSL Certificate Installation Checker: https://knowledge.verisign.com/support/ssl-certificates-support/index?page=content&id=AR1130
Enter your URL, click "Test this Web Server" and it will tell you if there are issues with your intermediate certificate authority.
I had the same issue and deleting the store and reading didn't work. I had to do the following.
Get a copy of OpenSSL. It is available for Windows. Or use a Linux box as they all pretty much all have it.
Run the following to export to a key file:
openssl pkcs12 -in certfile.pfx -out backupcertfile.key
openssl pkcs12 -export -out certfiletosignwith.pfx -keysig -in backupcertfile.key
Then in the project properties you can use the PFX file.
If you have a custom/self-signed certificate on server that is not there on device, you can use the below class to load it and use it on client side in Android:
Place the certificate *.crt
file in /res/raw
so that it is available from R.raw.*
Use below class to obtain an HTTPClient
or HttpsURLConnection
which will have a socket factory using that certificate :
package com.example.customssl;
import android.content.Context;
import org.apache.http.client.HttpClient;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.AllowAllHostnameVerifier;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
import org.apache.http.params.BasicHttpParams;
import org.apache.http.params.HttpParams;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManagerFactory;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.Certificate;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
public class CustomCAHttpsProvider {
/**
* Creates a {@link org.apache.http.client.HttpClient} which is configured to work with a custom authority
* certificate.
*
* @param context Application Context
* @param certRawResId R.raw.id of certificate file (*.crt). Should be stored in /res/raw.
* @param allowAllHosts If true then client will not check server against host names of certificate.
* @return Http Client.
* @throws Exception If there is an error initializing the client.
*/
public static HttpClient getHttpClient(Context context, int certRawResId, boolean allowAllHosts) throws Exception {
// build key store with ca certificate
KeyStore keyStore = buildKeyStore(context, certRawResId);
// init ssl socket factory with key store
SSLSocketFactory sslSocketFactory = new SSLSocketFactory(keyStore);
// skip hostname security check if specified
if (allowAllHosts) {
sslSocketFactory.setHostnameVerifier(new AllowAllHostnameVerifier());
}
// basic http params for client
HttpParams params = new BasicHttpParams();
// normal scheme registry with our ssl socket factory for "https"
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
schemeRegistry.register(new Scheme("https", sslSocketFactory, 443));
// create connection manager
ThreadSafeClientConnManager cm = new ThreadSafeClientConnManager(params, schemeRegistry);
// create http client
return new DefaultHttpClient(cm, params);
}
/**
* Creates a {@link javax.net.ssl.HttpsURLConnection} which is configured to work with a custom authority
* certificate.
*
* @param urlString remote url string.
* @param context Application Context
* @param certRawResId R.raw.id of certificate file (*.crt). Should be stored in /res/raw.
* @param allowAllHosts If true then client will not check server against host names of certificate.
* @return Http url connection.
* @throws Exception If there is an error initializing the connection.
*/
public static HttpsURLConnection getHttpsUrlConnection(String urlString, Context context, int certRawResId,
boolean allowAllHosts) throws Exception {
// build key store with ca certificate
KeyStore keyStore = buildKeyStore(context, certRawResId);
// Create a TrustManager that trusts the CAs in our KeyStore
String tmfAlgorithm = TrustManagerFactory.getDefaultAlgorithm();
TrustManagerFactory tmf = TrustManagerFactory.getInstance(tmfAlgorithm);
tmf.init(keyStore);
// Create an SSLContext that uses our TrustManager
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, tmf.getTrustManagers(), null);
// Create a connection from url
URL url = new URL(urlString);
HttpsURLConnection urlConnection = (HttpsURLConnection) url.openConnection();
urlConnection.setSSLSocketFactory(sslContext.getSocketFactory());
// skip hostname security check if specified
if (allowAllHosts) {
urlConnection.setHostnameVerifier(new AllowAllHostnameVerifier());
}
return urlConnection;
}
private static KeyStore buildKeyStore(Context context, int certRawResId) throws KeyStoreException, CertificateException, NoSuchAlgorithmException, IOException {
// init a default key store
String keyStoreType = KeyStore.getDefaultType();
KeyStore keyStore = KeyStore.getInstance(keyStoreType);
keyStore.load(null, null);
// read and add certificate authority
Certificate cert = readCert(context, certRawResId);
keyStore.setCertificateEntry("ca", cert);
return keyStore;
}
private static Certificate readCert(Context context, int certResourceId) throws CertificateException, IOException {
// read certificate resource
InputStream caInput = context.getResources().openRawResource(certResourceId);
Certificate ca;
try {
// generate a certificate
CertificateFactory cf = CertificateFactory.getInstance("X.509");
ca = cf.generateCertificate(caInput);
} finally {
caInput.close();
}
return ca;
}
}
Key points:
Certificate
objects are generated from .crt
files.KeyStore
is created.keyStore.setCertificateEntry("ca", cert)
is adding certificate to key store under alias "ca". You modify the code to add more certificates (intermediate CA etc).SSLSocketFactory
which can then be used by HTTPClient
or HttpsURLConnection
.SSLSocketFactory
can be configured further, for example to skip host name verification etc. More information at : http://developer.android.com/training/articles/security-ssl.html
In addition to Pascal Thivent's correct answer, another way is to save the certificate from Firefox (View Certificate -> Details -> export) or openssl s_client
and import it into the trust store.
You should only do this if you have a way to verify that certificate. Failing that, do it the first time you connect, it will at least give you an error if the certificate changes unexpectedly on subsequent connections.
To import it in a trust store, use:
keytool -importcert -keystore truststore.jks -file servercert.pem
By default, the default trust store should be $JAVA_HOME/jre/lib/security/cacerts
and its password should be changeit
, see JSSE Reference guide for details.
If you don't want to allow that certificate globally, but only for these connections, it's possible to create an SSLContext
for it:
TrustManagerFactory tmf = TrustManagerFactory
.getInstance(TrustManagerFactory.getDefaultAlgorithm());
KeyStore ks = KeyStore.getInstance("JKS");
FileInputStream fis = new FileInputStream("/.../truststore.jks");
ks.load(fis, null);
// or ks.load(fis, "thepassword".toCharArray());
fis.close();
tmf.init(ks);
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, tmf.getTrustManagers(), null);
Then, you need to set it up for Apache HTTP Client 3.x by implementing one if its SecureProtocolSocketFactory
to use this SSLContext
. (There are examples here).
Apache HTTP Client 4.x (apart from the earliest version) has direct support for passing an SSLContext
.
I agree with Paolo that we need to see more code. I tested this overly simplified example and it worked. This means that it is able to change the form action on the fly.
<script type="text/javascript">
function submitForm(){
var form_url = $("#openid_form").attr("action");
alert("Before - action=" + form_url);
//changing the action to google.com
$("#openid_form").attr("action","http://google.com");
alert("After - action = "+$("#openid_form").attr("action"));
//submit the form
$("#openid_form").submit();
}
</script>
<form id="openid_form" action="test.html">
First Name:<input type="text" name="fname" /><br/>
Last Name: <input type="text" name="lname" /><br/>
<input type="button" onclick="submitForm()" value="Submit Form" />
</form>
EDIT: I tested the updated code you posted and found a syntax error in the declaration of providers_large
. There's an extra comma. Firefox ignores the issue, but IE8 throws an error.
var providers_large = {
google: {
name: 'Google',
url: 'https://www.google.com/accounts/o8/id'
},
facebook: {
name: 'Facebook',
form_url: 'http://wikipediamaze.rpxnow.com/facebook/start?token_url=http://www.wikipediamaze.com/Accounts/Logon'
}, //<-- Here's the problem. Remove that comma
};
You can get a free cheap code signing certificate from Certum if you're doing open source development.
I've been using their certificate for over a year, and it does get rid of the unknown publisher message from Windows.
As far as signing code I use signtool.exe from a script like this:
signtool.exe sign /t http://timestamp.verisign.com/scripts/timstamp.dll /f "MyCert.pfx" /p MyPassword /d SignedFile.exe SignedFile.exe
Where clause and args work together to form the WHERE statement of the SQL query. So say you looking to express
WHERE Column1 = 'value1' AND Column2 = 'value2'
Then your whereClause and whereArgs will be as follows
String whereClause = "Column1 =? AND Column2 =?";
String[] whereArgs = new String[]{"value1", "value2"};
If you want to select all table columns, i believe a null string passed to tableColumns will suffice.
In OS X run as admin the first time by opening a new Terminal and run the commands:
cd /Applications/Android\ Studio.app/Contents/MacOS/
sudo ./studio
Use:
ToolTip tip = new ToolTip();
private void richTextBox1_MouseMove(object sender, MouseEventArgs e)
{
Cursor a = System.Windows.Forms.Cursor.Current;
if (a == Cursors.Hand)
{
Point p = richTextBox1.Location;
tip.Show(
GetWord(richTextBox1.Text,
richTextBox1.GetCharIndexFromPosition(e.Location)),
this,
p.X + e.X,
p.Y + e.Y + 32,
1000);
}
}
Use the GetWord function from my other answer to get the hovered word. Use timer logic to disable reshow the tooltip as in prev. example.
In this example right above, the tool tip shows the hovered word by checking the mouse pointer.
If this answer is still not what you are looking fo, please specify the condition that characterizes the word you want to use tooltip on. If you want it for bolded word, please tell me.
You can simply use BeginInvokeOnMainThread(). It invokes an Action on the device main (UI) thread.
Device.BeginInvokeOnMainThread(() => { displayToast("text to display"); });
It is simple and works perfectly for me!
EDIT : Works if you're using C# Xamarin
Don't use jQuery to manipulate the DOM when you're using React. React components should render a representation of what they should look like given a certain state; what DOM that translates to is taken care of by React itself.
What you want to do is store the "state which determines what gets rendered" higher up the chain, and pass it down. If you are rendering n
children, that state should be "owned" by whatever contains your component. eg:
class AppComponent extends React.Component {
state = {
numChildren: 0
}
render () {
const children = [];
for (var i = 0; i < this.state.numChildren; i += 1) {
children.push(<ChildComponent key={i} number={i} />);
};
return (
<ParentComponent addChild={this.onAddChild}>
{children}
</ParentComponent>
);
}
onAddChild = () => {
this.setState({
numChildren: this.state.numChildren + 1
});
}
}
const ParentComponent = props => (
<div className="card calculator">
<p><a href="#" onClick={props.addChild}>Add Another Child Component</a></p>
<div id="children-pane">
{props.children}
</div>
</div>
);
const ChildComponent = props => <div>{"I am child " + props.number}</div>;
The following approach is the same as Helge Klein's, except that the popup closes automatically when you click anywhere outside the Popup (including the ToggleButton itself):
<ToggleButton x:Name="Btn" IsHitTestVisible="{Binding ElementName=Popup, Path=IsOpen, Mode=OneWay, Converter={local:BoolInverter}}">
<TextBlock Text="Click here for popup!"/>
</ToggleButton>
<Popup IsOpen="{Binding IsChecked, ElementName=Btn}" x:Name="Popup" StaysOpen="False">
<Border BorderBrush="Black" BorderThickness="1" Background="LightYellow">
<CheckBox Content="This is a popup"/>
</Border>
</Popup>
"BoolInverter" is used in the IsHitTestVisible binding so that when you click the ToggleButton again, the popup closes:
public class BoolInverter : MarkupExtension, IValueConverter
{
public override object ProvideValue(IServiceProvider serviceProvider)
{
return this;
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value is bool)
return !(bool)value;
return value;
}
public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
return Convert(value, targetType, parameter, culture);
}
}
...which shows the handy technique of combining IValueConverter and MarkupExtension in one.
I did discover one problem with this technique: WPF is buggy when two popups are on the screen at the same time. Specifically, if your toggle button is on the "overflow popup" in a toolbar, then there will be two popups open after you click it. You may then find that the second popup (your popup) will stay open when you click anywhere else on your window. At that point, closing the popup is difficult. The user cannot click the ToggleButton again to close the popup because IsHitTestVisible is false because the popup is open! In my app I had to use a few hacks to mitigate this problem, such as the following test on the main window, which says (in the voice of Louis Black) "if the popup is open and the user clicks somewhere outside the popup, close the friggin' popup.":
PreviewMouseDown += (s, e) =>
{
if (Popup.IsOpen)
{
Point p = e.GetPosition(Popup.Child);
if (!IsInRange(p.X, 0, ((FrameworkElement)Popup.Child).ActualWidth) ||
!IsInRange(p.Y, 0, ((FrameworkElement)Popup.Child).ActualHeight))
Popup.IsOpen = false;
}
};
// Elsewhere...
public static bool IsInRange(int num, int lo, int hi) =>
num >= lo && num <= hi;
If you want a specific date in next month, you can do this:
// Calculate the timestamp
$expire = strtotime('first day of +1 month');
// Format the timestamp as a string
echo date('m/d/Y', $expire);
Note that this actually works more reliably where +1 month
can be confusing. For example...
Current Day | first day of +1 month | +1 month
---------------------------------------------------------------------------
2015-01-01 | 2015-02-01 | 2015-02-01
2015-01-30 | 2015-02-01 | 2015-03-02 (skips Feb)
2015-01-31 | 2015-02-01 | 2015-03-03 (skips Feb)
2015-03-31 | 2015-04-01 | 2015-05-01 (skips April)
2015-12-31 | 2016-01-01 | 2016-01-31
It's just what it says:
inputFile = open((x), encoding = "utf8", "r")
You have specified encoding
as a keyword argument, but "r"
as a positional argument. You can't have positional arguments after keyword arguments. Perhaps you wanted to do:
inputFile = open((x), "r", encoding = "utf8")
For me, I just wanted to test a website that had an automatic http->https redirect. I think I had some certs installed already, so this alone works for me on Ubuntu 16.04 running curl 7.47.0 (x86_64-pc-linux-gnu) libcurl/7.47.0 GnuTLS/3.4.10 zlib/1.2.8 libidn/1.32 librtmp/2.3
curl --proto-default https <target>
int roundUp(int numToRound, int multiple)
{
if(multiple == 0)
{
return 0;
}
return ((numToRound - 1) / multiple + 1) * multiple;
}
And no need to mess around with conditions
My own humble (case sensitive) solution:
uint8_t strContains(char* string, char* toFind)
{
uint8_t slen = strlen(string);
uint8_t tFlen = strlen(toFind);
uint8_t found = 0;
if( slen >= tFlen )
{
for(uint8_t s=0, t=0; s<slen; s++)
{
do{
if( string[s] == toFind[t] )
{
if( ++found == tFlen ) return 1;
s++;
t++;
}
else { s -= found; found=0; t=0; }
}while(found);
}
return 0;
}
else return -1;
}
Results
strContains("this is my sample example", "th") // 1
strContains("this is my sample example", "sample") // 1
strContains("this is my sample example", "xam") // 1
strContains("this is my sample example", "ple") // 1
strContains("this is my sample example", "ssample") // 0
strContains("this is my sample example", "samplee") // 0
strContains("this is my sample example", "") // 0
strContains("str", "longer sentence") // -1
strContains("ssssssample", "sample") // 1
strContains("sample", "sample") // 1
Tested on ATmega328P (avr8-gnu-toolchain-3.5.4.1709) ;)
My solution is:
import threading, time
def a():
t = threading.currentThread()
while getattr(t, "do_run", True):
print('Do something')
time.sleep(1)
def getThreadByName(name):
threads = threading.enumerate() #Threads list
for thread in threads:
if thread.name == name:
return thread
threading.Thread(target=a, name='228').start() #Init thread
t = getThreadByName('228') #Get thread by name
time.sleep(5)
t.do_run = False #Signal to stop thread
t.join()
I just did a post on this. I used a similar idea as Michael Hohlios did. Only, I used Properties instead of using the "object parameter".
Binding Visibility to a bool value in WPF
Using Properties makes it more readable, in my opinion.
<local:BoolToVisibleOrHidden x:Key="BoolToVisConverter" Collapse="True" Reverse="True" />
ZonedDateTime.parse(
"Jun 13 2003 23:11:52.454 UTC" ,
DateTimeFormatter.ofPattern ( "MMM d uuuu HH:mm:ss.SSS z" )
)
.toInstant()
.toEpochMilli()
1055545912454
This Answer expands on the Answer by Lockni.
DateTimeFormatter
First define a formatting pattern to match your input string by creating a DateTimeFormatter
object.
String input = "Jun 13 2003 23:11:52.454 UTC";
DateTimeFormatter f = DateTimeFormatter.ofPattern ( "MMM d uuuu HH:mm:ss.SSS z" );
ZonedDateTime
Parse the string as a ZonedDateTime
. You can think of that class as: ( Instant
+ ZoneId
).
ZonedDateTime zdt = ZonedDateTime.parse ( "Jun 13 2003 23:11:52.454 UTC" , f );
zdt.toString(): 2003-06-13T23:11:52.454Z[UTC]
I do not recommend tracking date-time values as a count-from-epoch. Doing so makes debugging tricky as humans cannot discern a meaningful date-time from a number so invalid/unexpected values may slip by. Also such counts are ambiguous, in granularity (whole seconds, milli, micro, nano, etc.) and in epoch (at least two dozen in by various computer systems).
But if you insist you can get a count of milliseconds from the epoch of first moment of 1970 in UTC (1970-01-01T00:00:00
) through the Instant
class. Be aware this means data-loss as you are truncating any nanoseconds to milliseconds.
Instant instant = zdt.toInstant ();
instant.toString(): 2003-06-13T23:11:52.454Z
long millisSinceEpoch = instant.toEpochMilli() ;
1055545912454
The java.time framework is built into Java 8 and later. These classes supplant the troublesome old legacy date-time classes such as java.util.Date
, Calendar
, & SimpleDateFormat
.
To learn more, see the Oracle Tutorial. And search Stack Overflow for many examples and explanations. Specification is JSR 310.
The Joda-Time project, now in maintenance mode, advises migration to the java.time classes.
You may exchange java.time objects directly with your database. Use a JDBC driver compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.*
classes.
Where to obtain the java.time classes?
The ThreeTen-Extra project extends java.time with additional classes. This project is a proving ground for possible future additions to java.time. You may find some useful classes here such as Interval
, YearWeek
, YearQuarter
, and more.
I know this question was specifically for jQuery, but for anyone using AngularJS that has this problem you can create a directive that handles this:
angular.module('app').directive('dropdownPreventClose', function() {
return {
restrict: 'A',
link: function(scope, element, attrs) {
element.on('click', function(e) {
e.stopPropagation(); //prevent the default behavior of closing the dropdown-menu
});
}
};
});
Then just add the attribute dropdown-prevent-close
to your element that is triggering the menu to close, and it should prevent it. For me, it was a select
element that automatically closed the menu:
<div class="dropdown-menu">
<select dropdown-prevent-close name="myInput" id="myInput" ng-model="myModel">
<option value="">Select Me</option>
</select>
</div>
From the terminal you can simply do a "postgres list clusters":
pg_lsclusters
It will return Postgres version number, cluster names, ports, status, owner, and the location of your data directories and log file.
echo "Enter Drive letter"
set /p driveletter=
attrib -s -h -a /s /d %driveletter%:\*.*
Yes, you can switch on the name...
switch (obj.GetType().Name)
{
case "TextBox":...
}
By initializing the min/max values to their extreme opposite, you avoid any edge cases of values in the input: Either one of min/max is in fact one of those values (in the case where the input consists of only one of those values), or the correct min/max will be found.
It should be noted that primitive types must have a value. If you used Objects (ie Integer
), you could initialize value to null
and handle that special case for the first comparison, but that creates extra (needless) code. However, by using these values, the loop code doesn't need to worry about the edge case of the first comparison.
Another alternative is to set both initial values to the first value of the input array (never a problem - see below) and iterate from the 2nd element onward, since this is the only correct state of min/max after one iteration. You could iterate from the 1st element too - it would make no difference, other than doing one extra (needless) iteration over the first element.
The only sane way of dealing with inout of size zero is simple: throw an IllegalArgumentException
, because min/max is undefined in this case.
-- replace NVARCHAR(42) with the actual type of your column
ALTER TABLE your_table
ALTER COLUMN your_column NVARCHAR(42) NULL
Given:
public enum PersonType {
COOL_GUY(1),
JERK(2);
private final int typeId;
private PersonType(int typeId) {
this.typeId = typeId;
}
public final int getTypeId() {
return typeId;
}
public static PersonType findByTypeId(int typeId) {
for (PersonType type : values()) {
if (type.typeId == typeId) {
return type;
}
}
return null;
}
}
For me, this typically aligns with a look-up table in a database (for rarely-updated tables only).
However, when I try to use findByTypeId
in a switch statement (from, most likely, user input)...
int userInput = 3;
PersonType personType = PersonType.findByTypeId(userInput);
switch(personType) {
case COOL_GUY:
// Do things only a cool guy would do.
break;
case JERK:
// Push back. Don't enable him.
break;
default:
// I don't know or care what to do with this mess.
}
...as others have stated, this results in an NPE @ switch(personType) {
. One work-around (i.e., "solution") I started implementing was to add an UNKNOWN(-1)
type.
public enum PersonType {
UNKNOWN(-1),
COOL_GUY(1),
JERK(2);
...
public static PersonType findByTypeId(int id) {
...
return UNKNOWN;
}
}
Now, you don't have to do null-checking where it counts and you can choose to, or not to, handle UNKNOWN
types. (NOTE: -1
is an unlikely identifier in a business scenario, but obviously choose something that makes sense for your use-case).
//Function for inverse of the input square matrix 'J' of dimension 'dim':
vector<vector<double > > inverseVec33(vector<vector<double > > J, int dim)
{
//Matrix of Minors
vector<vector<double > > invJ(dim,vector<double > (dim));
for(int i=0; i<dim; i++)
{
for(int j=0; j<dim; j++)
{
invJ[i][j] = (J[(i+1)%dim][(j+1)%dim]*J[(i+2)%dim][(j+2)%dim] -
J[(i+2)%dim][(j+1)%dim]*J[(i+1)%dim][(j+2)%dim]);
}
}
//determinant of the matrix:
double detJ = 0.0;
for(int j=0; j<dim; j++)
{ detJ += J[0][j]*invJ[0][j];}
//Inverse of the given matrix.
vector<vector<double > > invJT(dim,vector<double > (dim));
for(int i=0; i<dim; i++)
{
for(int j=0; j<dim; j++)
{
invJT[i][j] = invJ[j][i]/detJ;
}
}
return invJT;
}
void main()
{
//given matrix:
vector<vector<double > > Jac(3,vector<double > (3));
Jac[0][0] = 1; Jac[0][1] = 2; Jac[0][2] = 6;
Jac[1][0] = -3; Jac[1][1] = 4; Jac[1][2] = 3;
Jac[2][0] = 5; Jac[2][1] = 1; Jac[2][2] = -4;`
//Inverse of the matrix Jac:
vector<vector<double > > JacI(3,vector<double > (3));
//call function and store inverse of J as JacI:
JacI = inverseVec33(Jac,3);
}
You can use the .blur()
method. See http://api.jquery.com/blur/
Extract from the oficial docs:
Requires that the parent form is validated, that is, $( "form" ).validate() is called first
more about... rules
List.ForEach() is considered to be more functional.
List.ForEach()
says what you want done. foreach(item in list)
also says exactly how you want it done. This leaves List.ForEach
free to change the implementation of the how part in the future. For example, a hypothetical future version of .Net might always run List.ForEach
in parallel, under the assumption that at this point everyone has a number of cpu cores that are generally sitting idle.
On the other hand, foreach (item in list)
gives you a little more control over the loop. For example, you know that the items will be iterated in some kind of sequential order, and you could easily break in the middle if an item meets some condition.
Some more recent remarks on this issue are available here:
Try This query:
SELECT
SUM(CASE datepart(month,ARR_DATE) WHEN 1 THEN 1 ELSE 0 END) AS 'January',
SUM(CASE datepart(month,ARR_DATE) WHEN 2 THEN 1 ELSE 0 END) AS 'February',
SUM(CASE datepart(month,ARR_DATE) WHEN 3 THEN 1 ELSE 0 END) AS 'March',
SUM(CASE datepart(month,ARR_DATE) WHEN 4 THEN 1 ELSE 0 END) AS 'April',
SUM(CASE datepart(month,ARR_DATE) WHEN 5 THEN 1 ELSE 0 END) AS 'May',
SUM(CASE datepart(month,ARR_DATE) WHEN 6 THEN 1 ELSE 0 END) AS 'June',
SUM(CASE datepart(month,ARR_DATE) WHEN 7 THEN 1 ELSE 0 END) AS 'July',
SUM(CASE datepart(month,ARR_DATE) WHEN 8 THEN 1 ELSE 0 END) AS 'August',
SUM(CASE datepart(month,ARR_DATE) WHEN 9 THEN 1 ELSE 0 END) AS 'September',
SUM(CASE datepart(month,ARR_DATE) WHEN 10 THEN 1 ELSE 0 END) AS 'October',
SUM(CASE datepart(month,ARR_DATE) WHEN 11 THEN 1 ELSE 0 END) AS 'November',
SUM(CASE datepart(month,ARR_DATE) WHEN 12 THEN 1 ELSE 0 END) AS 'December',
SUM(CASE datepart(year,ARR_DATE) WHEN 2012 THEN 1 ELSE 0 END) AS 'TOTAL'
FROM
sometable
WHERE
ARR_DATE BETWEEN '2012/01/01' AND '2012/12/31'
Two ways:
use the argument -uno
to git-status
. Here's an example:
[jenny@jenny_vmware:ft]$ git status
# On branch ft
# Untracked files:
# (use "git add <file>..." to include in what will be committed)
#
# foo
nothing added to commit but untracked files present (use "git add" to track)
[jenny@jenny_vmware:ft]$ git status -uno
# On branch ft
nothing to commit (working directory clean)
Or you can add the files and directories to .gitignore
, in which case they will never show up.
This would work too.
List<string> names = Enum.GetNames(typeof(MyEnum)).ToList();
The absolutely best way is neither of the 2, but the 3rd. The first parameter to encode
defaults to 'utf-8'
ever since Python 3.0. Thus the best way is
b = mystring.encode()
This will also be faster, because the default argument results not in the string "utf-8"
in the C code, but NULL
, which is much faster to check!
Here be some timings:
In [1]: %timeit -r 10 'abc'.encode('utf-8')
The slowest run took 38.07 times longer than the fastest.
This could mean that an intermediate result is being cached.
10000000 loops, best of 10: 183 ns per loop
In [2]: %timeit -r 10 'abc'.encode()
The slowest run took 27.34 times longer than the fastest.
This could mean that an intermediate result is being cached.
10000000 loops, best of 10: 137 ns per loop
Despite the warning the times were very stable after repeated runs - the deviation was just ~2 per cent.
Using encode()
without an argument is not Python 2 compatible, as in Python 2 the default character encoding is ASCII.
>>> 'äöä'.encode()
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 0: ordinal not in range(128)
Not sure why do you need w,h. If these values are actually required and mean that only specified number of rows and cols should be read than you can try the following:
output = []
with open(r'c:\file.txt', 'r') as f:
w, h = map(int, f.readline().split())
tmp = []
for i, line in enumerate(f):
if i == h:
break
tmp.append(map(int, line.split()[:w]))
output.append(tmp)
Use like this:
when(
fooDao.getBar(
Matchers.<Bazoo>any()
)
).thenReturn(myFoo);
Before you need to import Mockito.Matchers
Like Google documentation:
// Assume thisActivity is the current activity
int permissionCheck = ContextCompat.checkSelfPermission(thisActivity, Manifest.permission.WRITE_EXTERNAL_STORAGE);
Above wait statement is a nice example of Explicit wait.
As Explicit waits are intelligent waits that are confined to a particular web element(as mentioned in above x-path).
By Using explicit waits you are basically telling WebDriver at the max it is to wait for X units(whatever you have given as timeoutInSeconds) of time before it gives up.
You need to add parentheses after a method call, else the compiler will think you're talking about the method itself (a delegate type), whereas you're actually talking about the return value of that method.
string t = obj.getTitle();
Extra Non-Essential Information
Also, have a look at properties. That way you could use title as if it were a variable, while, internally, it works like a function. That way you don't have to write the functions getTitle()
and setTitle(string value)
, but you could do it like this:
public string Title // Note: public fields, methods and properties use PascalCasing
{
get // This replaces your getTitle method
{
return _title; // Where _title is a field somewhere
}
set // And this replaces your setTitle method
{
_title = value; // value behaves like a method parameter
}
}
Or you could use auto-implemented properties, which would use this by default:
public string Title { get; set; }
And you wouldn't have to create your own backing field (_title
), the compiler would create it itself.
Also, you can change access levels for property accessors (getters and setters):
public string Title { get; private set; }
You use properties as if they were fields, i.e.:
this.Title = "Example";
string local = this.Title;
You can include a different jade file into your template, that to from a different directory
views/
layout.jade
static/
page.jade
To include the layout file from views dir to static/page.jade
page.jade
extends ../views/layout
You might consider using the :checked
selector, provided by jQuery. Something like this:
$('.pChk').click(function() {
if( $('.pChk:checked').length > 0 ) {
$("#ProjectListButton").show();
} else {
$("#ProjectListButton").hide();
}
});
A CRLF is two characters, of course, the CR and the LF. However, `n
consists of both. For example:
PS C:\> $x = "Hello
>> World"
PS C:\> $x
Hello
World
PS C:\> $x.contains("`n")
True
PS C:\> $x.contains("`r")
False
PS C:\> $x.replace("o`nW","o There`nThe W")
Hello There
The World
PS C:\>
I think you're running into problems with the `r
. I was able to remove the `r
from your example, use only `n
, and it worked. Of course, I don't know exactly how you generated the original string so I don't know what's in there.
As Filburt says; but also note that it's usually better to write
test="not(Count = 'N/A')"
If there's exactly one Count element they mean the same thing, but if there's no Count, or if there are several, then the meanings are different.
6 YEARS LATER
Since this answer seems to have become popular, but may be a little cryptic to some readers, let me expand it.
The "=" and "!=" operator in XPath can compare two sets of values. In general, if A and B are sets of values, then "=" returns true if there is any pair of values from A and B that are equal, while "!=" returns true if there is any pair that are unequal.
In the common case where A selects zero-or-one nodes, and B is a constant (say "NA"), this means that not(A = "NA")
returns true if A is either absent, or has a value not equal to "NA". By contrast, A != "NA"
returns true if A is present and not equal to "NA". Usually you want the "absent" case to be treated as "not equal", which means that not(A = "NA")
is the appropriate formulation.
I've got the same problem on Eclipse 3.8.1. For me it worked to set the artifact type to executable:
Right click on the project -> C/C++ Build -> Settings -> Build Artifact -> Artifact Type: Executable
Finally rebuilding the project produced the Binaries entry in the Project Explorer.
Yes, this is confusing...
According to this blog post, it looks like this is an omission from WPF.
To make it work you need to use a style:
<Border Name="ClearButtonBorder" Grid.Column="1" CornerRadius="0,3,3,0">
<Border.Style>
<Style>
<Setter Property="Border.Background" Value="Blue"/>
<Style.Triggers>
<Trigger Property="Border.IsMouseOver" Value="True">
<Setter Property="Border.Background" Value="Green" />
</Trigger>
</Style.Triggers>
</Style>
</Border.Style>
<TextBlock HorizontalAlignment="Center" VerticalAlignment="Center" Text="X" />
</Border>
I guess this problem isn't that common as most people tend to factor out this sort of thing into a style, so it can be used on multiple controls.
Cursor itself is an iterator (like WHILE). By saying iterator I mean a way to traverse the record set (aka a set of selected data rows) and do operations on it while traversing. Operations could be INSERT or DELETE for example. Hence you can use it for data retrieval for example. Cursor works with the rows of the result set sequentially - row by row. A cursor can be viewed as a pointer to one row in a set of rows and can only reference one row at a time, but can move to other rows of the result set as needed.
This link can has a clear explanation of its syntax and contains additional information plus examples.
Cursors can be used in Sprocs too. They are a shortcut that allow you to use one query to do a task instead of several queries. However, cursors recognize scope and are considered undefined out of the scope of the sproc and their operations execute within a single procedure. A stored procedure cannot open, fetch, or close a cursor that was not declared in the procedure.
This should help you: W3Schools - Labels
<form>
<label for="male">Male</label>
<input type="radio" name="sex" id="male" />
<br />
<label for="female">Female</label>
<input type="radio" name="sex" id="female" />
</form>
An extension for clearing the shell can be found in Issue6143 as a "feature request". This extension is included with IdleX.
The syntax "select top (@var) ..." only works in SQL SERVER 2005+. For SQL 2000, you can do:
set rowcount @top
select * from sometable
set rowcount 0
Hope this helps
Oisin.
(edited to replace @@rowcount with rowcount - thanks augustlights)
To create a video, you could use opencv,
#load your frames
frames = ...
#create a video writer
writer = cvCreateVideoWriter(filename, -1, fps, frame_size, is_color=1)
#and write your frames in a loop if you want
cvWriteFrame(writer, frames[i])
just type "git push" if this doesn't give you a positive replay, then check if you are connected with your repository correctly.
As jackrabb1t pointed out, --follow
is more robust since it continues listing the history beyond renames/moves. So, if you are looking for a file that is not currently in the same path or a file that has been renamed throughout various commits, --follow will track it.
This can be a better option if you want to visualize the name/path changes:
git log --follow --name-status -- <path>
But if you want a more compact list with only what matters:
git log --follow --name-status --format='%H' -- <path>
or even
git log --follow --name-only --format='%H' -- <path>
The downside is that --follow
only works for a single file.
For %d
part refer to this How does this program work? and for decimal places use %.2f
I just discovered this lore:
For keeping the Activity alive through an orientation change, and handling it through onConfigurationChanged
, the documentation and the code sample above suggest this in the Manifest file:
<activity android:name=".MyActivity"
android:configChanges="orientation|keyboardHidden"
android:label="@string/app_name">
which has the extra benefit that it always works.
The bonus lore is that omitting the keyboardHidden
may seem logical, but it causes failures in the emulator (for Android 2.1 at least): specifying only orientation
will make the emulator call both OnCreate
and onConfigurationChanged
sometimes, and only OnCreate
other times.
I haven't seen the failure on a device, but I have heard about the emulator failing for others. So it's worth documenting.
Don't reinvent the wheel. Take advantage of what's already in .NET BCL.
Microsoft.VisualBasic
(yes, it says VisualBasic but it works in C# just as well - remember that at the end it is all just IL)Microsoft.VisualBasic.FileIO.TextFieldParser
class to parse CSV fileHere is the sample code:
using (TextFieldParser parser = new TextFieldParser(@"c:\temp\test.csv"))
{
parser.TextFieldType = FieldType.Delimited;
parser.SetDelimiters(",");
while (!parser.EndOfData)
{
//Processing row
string[] fields = parser.ReadFields();
foreach (string field in fields)
{
//TODO: Process field
}
}
}
It works great for me in my C# projects.
Here are some more links/informations:
Dictionary<string, int> dictionary = new Dictionary<string, int>();
Dictionary<string, int> copy = new Dictionary<string, int>(dictionary);
Options +FollowSymLinks
RewriteEngine On
RewriteBase /
## hide .html extension
# To externally redirect /dir/foo.html to /dir/foo
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+).html
RewriteRule ^ %1 [R=301,L]
RewriteCond %{THE_REQUEST} ^[A-Z]{3,}\s([^.]+)/\s
RewriteRule ^ %1 [R=301,L]
## To internally redirect /dir/foo to /dir/foo.html
RewriteCond %{REQUEST_FILENAME}.html -f
RewriteRule ^([^\.]+)$ $1.html [L]
<Files ~"^.*\.([Hh][Tt][Aa])">
order allow,deny
deny from all
satisfy all
</Files>
This removes html code or php if you supplement it. Allows you to add trailing slash and it come up as well as the url without the trailing slash all bypassing the 404 code. Plus a little added security.
I had the same problem. I found that this is because the Maven script looks at the CurrentJDK link below and finds a 1.6 JDK. Even if you install the latest JDK this is not resolved. While you could just set JAVA_HOME in your $HOME/.bash_profile script I chose to fix the symbolic link instead as follows:
ls -l /System/Library/Frameworks/JavaVM.framework/Versions/
total 64
lrwxr-xr-x 1 root wheel 10 30 Oct 16:18 1.4 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 30 Oct 16:18 1.4.2 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 30 Oct 16:18 1.5 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 30 Oct 16:18 1.5.0 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 30 Oct 16:18 1.6 -> CurrentJDK
lrwxr-xr-x 1 root wheel 10 30 Oct 16:18 1.6.0 -> CurrentJDK
drwxr-xr-x 9 root wheel 306 11 Nov 21:20 A
lrwxr-xr-x 1 root wheel 1 30 Oct 16:18 Current -> A
lrwxr-xr-x 1 root wheel 59 30 Oct 16:18 CurrentJDK -> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents
Notice that CurrentJDK points at 1.6.0.jdk
To fix it I ran the following commands (you should check your installed version and adapt accordingly).
sudo rm /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK
sudo ln -s /Library/Java/JavaVirtualMachines/jdk1.7.0_51.jdk/Contents/ /System/Library/Frameworks/JavaVM.framework/Versions/CurrentJDK
If you are looking to reduce the size using coding itself, you can follow this code in php.
<?php
function compress($source, $destination, $quality) {
$info = getimagesize($source);
if ($info['mime'] == 'image/jpeg')
$image = imagecreatefromjpeg($source);
elseif ($info['mime'] == 'image/gif')
$image = imagecreatefromgif($source);
elseif ($info['mime'] == 'image/png')
$image = imagecreatefrompng($source);
imagejpeg($image, $destination, $quality);
return $destination;
}
$source_img = 'source.jpg';
$destination_img = 'destination .jpg';
$d = compress($source_img, $destination_img, 90);
?>
$d = compress($source_img, $destination_img, 90);
This is just a php function that passes the source image ( i.e., $source_img
), destination image ( $destination_img
) and quality for the image that will take to compress ( i.e., 90 ).
$info = getimagesize($source);
The getimagesize()
function is used to find the size of any given image file and return the dimensions along with the file type.
Try Dijkstra's algorithm on the following graph, assuming A
is the source node and D
is the destination, to see what is happening:
Note that you have to follow strictly the algorithm definition and you should not follow your intuition (which tells you the upper path is shorter).
The main insight here is that the algorithm only looks at all directly connected edges and it takes the smallest of these edge. The algorithm does not look ahead. You can modify this behavior , but then it is not the Dijkstra algorithm anymore.
Most people recommend using notifyDataSetChanged()
, but I found this link pretty useful. In fact using clear
and add
you can accomplish the same goal using less memory footprint, and more responsibe app.
For example:
notesListAdapter.clear();
notes = new ArrayList<Note>();
notesListAdapter.add(todayNote);
if (birthdayNote != null) notesListAdapter.add(birthdayNote);
/* no need to refresh, let the adaptor do its job */
Use TextureLoader to load a image as texture and then simply apply that texture to scene background.
new THREE.TextureLoader();
loader.load('https://images.pexels.com/photos/1205301/pexels-photo-1205301.jpeg' , function(texture)
{
scene.background = texture;
});
Result:
https://codepen.io/hiteshsahu/pen/jpGLpq?editors=0011
See the Pen Flat Earth Three.JS by Hitesh Sahu (@hiteshsahu) on CodePen.If you are worried about encoding, you can always use a switch statement.
Just be careful with the format you keep those large numbers in. The maximum size for an integer in some systems is as low as 65,535 (32,767 signed). Other systems, you've got 2,147,483,647 (or 4,294,967,295 unsigned)
I had this same problem installing my app to a server. It ended up being the installer project, it wasn't installing all the files needed to run the web app. I tried to figure out where it was broken but in the end I had to revert the project to the previous version to fix it. Hope this helps someone...
Downloading file through ajax is always a painful process and In my view it is best to let server and browser do this work of content type negotiation.
I think its best to have
<a href="api/sample/download"></a>
to do it. This doesn't even require any new windows opening and stuff like that.
The MVC controller as in your sample can be like the one below:
[HttpGet("[action]")]
public async Task<FileContentResult> DownloadFile()
{
// ...
return File(dataStream.ToArray(), "text/plain", "myblob.txt");
}
You can try to clone using the HTTPS
protocol. Terminal command:
git clone https://github.com/RestKit/RestKit.git
I know it's an older post, but i wanna add some extra informations about that.
Firstly, i think that rvm
does great BUT it wasn't updating ruby from my system (MAC OS Yosemite).
What rvm
was doing : installing to another location and setting up the path there to my environment variable ... And i was kinda bored, because i had two ruby now on my system.
So to fix that, i uninstalled the rvm
, then used the Homebrew package manager available here and installed ruby throw terminal command by doing brew install ruby
.
And then, everything was working perfectly ! The ruby from my system was updated ! Hope it will help for the next adventurers !
Any .apk file from market or unsigned
If you apk is downloaded from market and hence signed Install Astro File Manager from market. Open Astro > Tools > Application Manager/Backup and select the application to backup on to the SD card . Mount phone as USB drive and access 'backupsapps' folder to find the apk of target app (lets call it app.apk) . Copy it to your local drive same is the case of unsigned .apk.
Download Dex2Jar zip from this link: SourceForge
Unzip the downloaded zip file.
Open command prompt & write the following command on reaching to directory where dex2jar exe is there and also copy the apk in same directory.
dex2jar targetapp.apk file
(./dex2jar app.apk on terminal)
http://jd.benow.ca/ download decompiler from this link.
Open ‘targetapp.apk.dex2jar.jar’ with jd-gui File > Save All Sources to sava the class files in jar to java files.
Define two dates using new Date(). Calculate the time difference of two dates using date2. getTime() – date1. getTime(); Calculate the no. of days between two dates, divide the time difference of both the dates by no. of milliseconds in a day (10006060*24)
If you just put '/' in the href it will reload the current window.
<a href="/">
Reload the page
</a>
_x000D_
Just make a new folder inside C:\xampp\htdocs like C:\xampp\htdocs\test and place your index.php or whatever file in it. Access it by browsing localhost/test/
Good luck!
Adding to other answers already given above. If case insensivity is of any importance to you, then use Jackson. Gson does not support case insensitivity for key names, while jackson does.
Here are two related links
(No) Case sensitivity support in Gson : GSON: How to get a case insensitive element from Json?
Case sensitivity support in Jackson https://gist.github.com/electrum/1260489
You may try to run the following command to show your RSA fingerprint:
ssh-agent sh -c 'ssh-add; ssh-add -l'
or public key:
ssh-agent sh -c 'ssh-add; ssh-add -L'
If you've the message: 'The agent has no identities.', then you've to generate your RSA key by ssh-keygen
first.
just put all apache comons jar and file upload jar in lib folder of tomcat
It can be something like this:
a.register:link { color:#FFF; text-decoration:none; font-weight:normal; }
a.register:visited { color: #FFF; text-decoration:none; font-weight:normal; }
a.register:hover { color: #FFF; text-decoration:underline; font-weight:normal; }
a.register:active { color: #FFF; text-decoration:none; font-weight:normal; }
Hard to find a clear answer from the Oracle site. The following is from javax.ws.rs.core.HttpHeaders.java
:
/**
* See {@link <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.1">HTTP/1.1 documentation</a>}.
*/
public static final String ACCEPT = "Accept";
/**
* See {@link <a href="http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.2">HTTP/1.1 documentation</a>}.
*/
public static final String ACCEPT_CHARSET = "Accept-Charset";
If the file is coming off the disk and as others have stated, use the BaseName
and Extension
properties:
PS C:\> dir *.xlsx | select BaseName,Extension
BaseName Extension
-------- ---------
StackOverflow.com Test Config .xlsx
If you are given the file name as part of string (say coming from a text file), I would use the GetFileNameWithoutExtension
and GetExtension
static methods from the System.IO.Path class:
PS C:\> [System.IO.Path]::GetFileNameWithoutExtension("Test Config.xlsx")
Test Config
PS H:\> [System.IO.Path]::GetExtension("Test Config.xlsx")
.xlsx
i know this is old but I'm passing trought the same problem and found the solution in the spring documentation, the following xml configuration has been solved the problem for me.
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/tx
<!-- THIS IS THE LINE THAT SOLVE MY PROBLEM -->
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
before I put the line above as sugested in this forum topic , I have the same warning message, and placing this...
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xml>
and it give me the following warning message...
The content of element type "template" must match "
(description,variation?,variation-field?,allow- multiple-variation?,class-
pattern?,getter-setter?,allowed-file-extensions?,number-required-
classes?,template-body)".
so just try to use the sugested lines of my xml configuration.
# Python 2.7.16 (default, Jul 13 2019, 16:01:51)
# [GCC 8.3.0] on linux2
g = globals()
listB = []
for i in range(10):
g["num%s" % i] = i ** 10
listB.append("num{0}".format(i))
def printNum():
print "Printing num0 to num9:"
for i in range(10):
print "num%s = " % i,
print g["num%s" % i]
printNum()
listA = []
for i in range(10):
listA.append(i)
listA = tuple(listA)
print listA, '"Tuple to unpack"'
listB = str(str(listB).strip("[]").replace("'", "") + " = listA")
print listB
exec listB
printNum()
Output:
Printing num0 to num9:
num0 = 0
num1 = 1
num2 = 1024
num3 = 59049
num4 = 1048576
num5 = 9765625
num6 = 60466176
num7 = 282475249
num8 = 1073741824
num9 = 3486784401
(0, 1, 2, 3, 4, 5, 6, 7, 8, 9) "Tuple to unpack"
num0, num1, num2, num3, num4, num5, num6, num7, num8, num9 = listA
Printing num0 to num9:
num0 = 0
num1 = 1
num2 = 2
num3 = 3
num4 = 4
num5 = 5
num6 = 6
num7 = 7
num8 = 8
num9 = 9
This error means that file was not found. Either path is wrong or file is not present where you want it to be. Try to access it by entering source address in your browser to check if it really is there. Browse the directories on server to ensure the path is correct. You may even copy and paste the relative path to be certain it is alright.
B.display() works because static declaration makes the method/member to belong to the class, and not any particular class instance (aka Object). You can read more about it here.
Another thing to note is that you cannot override a static method, you can have your sub class declare a static method with the same signature, but its behavior may be different than what you'd expect. This is probably the reason why it is not considered inherited. You can check out the problematic scenario and the explanation here.
There are a few problems with the two popular answers:
Comparing strings using NSNumericSearch
sometimes has unintuitive results (the SYSTEM_VERSION_*
macros all suffer from this):
[@"10.0" compare:@"10" options:NSNumericSearch] // returns NSOrderedDescending instead of NSOrderedSame
FIX: Normalize your strings first and then perform the comparisons. could be annoying trying to get both strings in identical formats.
Using the foundation framework version symbols is not possible when checking future releases
NSFoundationVersionNumber_iOS_6_1 // does not exist in iOS 5 SDK
FIX: Perform two separate tests to ensure the symbol exists AND THEN compare symbols. However another here:
The foundation framwork versions symbols are not unique to iOS versions. Multiple iOS releases can have the same framework version.
9.2 & 9.3 are both 1242.12
8.3 & 8.4 are both 1144.17
FIX: I believe this issue is unresolvable
To resolve these issues, the following method treats version number strings as base-10000 numbers (each major/minor/patch component is an individual digit) and performs a base conversion to decimal for easy comparison using integer operators.
Two other methods were added for conveniently comparing iOS version strings and for comparing strings with arbitrary number of components.
+ (SInt64)integerFromVersionString:(NSString *)versionString withComponentCount:(NSUInteger)componentCount
{
//
// performs base conversion from a version string to a decimal value. the version string is interpreted as
// a base-10000 number, where each component is an individual digit. this makes it simple to use integer
// operations for comparing versions. for example (with componentCount = 4):
//
// version "5.9.22.1" = 5*1000^3 + 9*1000^2 + 22*1000^1 + 1*1000^0 = 5000900220001
// and
// version "6.0.0.0" = 6*1000^3 + 0*1000^2 + 0*1000^1 + 0*1000^1 = 6000000000000
// and
// version "6" = 6*1000^3 + 0*1000^2 + 0*1000^1 + 0*1000^1 = 6000000000000
//
// then the integer comparisons hold true as you would expect:
//
// "5.9.22.1" < "6.0.0.0" // true
// "6.0.0.0" == "6" // true
//
static NSCharacterSet *nonDecimalDigitCharacter;
static dispatch_once_t onceToken;
dispatch_once(&onceToken,
^{ // don't allocate this charset every time the function is called
nonDecimalDigitCharacter = [[NSCharacterSet decimalDigitCharacterSet] invertedSet];
});
SInt64 base = 10000; // each component in the version string must be less than base
SInt64 result = 0;
SInt64 power = 0;
// construct the decimal value left-to-right from the version string
for (NSString *component in [versionString componentsSeparatedByString:@"."])
{
if (NSNotFound != [component rangeOfCharacterFromSet:nonDecimalDigitCharacter].location)
{
// one of the version components is not an integer, so bail out
result = -1;
break;
}
result += [component longLongValue] * (long long)pow((double)base, (double)(componentCount - ++power));
}
return result;
}
+ (SInt64)integerFromVersionString:(NSString *)versionString
{
return [[self class] integerFromVersionString:versionString
withComponentCount:[[versionString componentsSeparatedByString:@"."] count]];
}
+ (SInt64)integerFromiOSVersionString:(NSString *)versionString
{
// iOS uses 3-component version string
return [[self class] integerFromVersionString:versionString
withComponentCount:3];
}
It's somewhat future-proof in that it supports many revision identifiers (through 4 digits, 0-9999; change base
to adjust this range) and can support an arbitrary number of components (Apple seems to use 3 components for now, e.g. major.minor.patch
), but this can be specified explicitly using the componentCount
argument. Be sure your componentCount
and base
do not cause overflow, i.e. ensure 2^63 >= base^componentCount
!
Usage example:
NSString *currentVersion = [[UIDevice currentDevice] systemVersion];
if ([Util integerFromiOSVersionString:currentVersion] >= [Util integerFromiOSVersionString:@"42"])
{
NSLog(@"we are in some horrible distant future where iOS still exists");
}
for me the default is Shift + Tab,
you can select the text you want, press Shift + Tab to shift everything on the left, selecting all and pressing Tab shifts everything to the right.
Often there are questions about the java settings in vsCode
. This is a big question and can involve advanced user knowledge to accmplish. But there is simple way to get the existing java settings from vsCode
and copy these setting for use on another PC. This post is using recent versions of vsCode and JDK in mid-December 2020.
There are several screen shots (below) that accompany this post which should provide enough information for the visual learners.
First things first, open vsCode
and either open an existing java folder-file or create a new java file in vsCode
. Then look at the lower right corner of vsCode
(on the blue command bar). The vsCode
should be displaying an icon showing the version of the Java Standard Edition
( Java SE ) being used. The version being on this PC today is JavaSE-15. (link 1)
Click on that icon (JAVASE-15
) which then opens a new window named "java.configuration.runtimes
". There should be two tabs below this name: User
and Workspace
. Below these tabs is a link named, "Edit in settings.json
". Click on that link. (link 2)
Two json
files should then open: Default settings
and settings.json
. This post only focuses on the "settings.json
" file. The settings.json
file shows various settings used for coding different programming languages (Python, R, and java). Near the bottom of the settings.json
file shows the settings this User uses in vsCode
for programming java.
These java settings are the settings that can be "backed up" - meaning these settings get copied and pasted to another PC for creating a java programming environment similar to the java programming environment on this PC. (link 3)
If you want a really simple answer:
s_1 = "abc def ghi"
s_2 = "def ghi abc"
flag = 0
for i in s_1:
if i not in s_2:
flag = 1
if flag == 0:
print("a == b")
else:
print("a != b")
I think there is no way to find out whether a dynamic
variable has a certain member without trying to access it, unless you re-implemented the way dynamic binding is handled in the C# compiler. Which would probably include a lot of guessing, because it is implementation-defined, according to the C# specification.
So you should actually try to access the member and catch an exception, if it fails:
dynamic myVariable = GetDataThatLooksVerySimilarButNotTheSame();
try
{
var x = myVariable.MyProperty;
// do stuff with x
}
catch (RuntimeBinderException)
{
// MyProperty doesn't exist
}
This will get you pretty close, and I use it in production and have never had a collision. However, if you look at the constructor for a guid in reflector, you will see all of the checks it makes.
public static bool GuidTryParse(string s, out Guid result)
{
if (!String.IsNullOrEmpty(s) && guidRegEx.IsMatch(s))
{
result = new Guid(s);
return true;
}
result = default(Guid);
return false;
}
static Regex guidRegEx = new Regex("^[A-Fa-f0-9]{32}$|" +
"^({|\\()?[A-Fa-f0-9]{8}-([A-Fa-f0-9]{4}-){3}[A-Fa-f0-9]{12}(}|\\))?$|" +
"^({)?[0xA-Fa-f0-9]{3,10}(, {0,1}[0xA-Fa-f0-9]{3,6}){2}, {0,1}({)([0xA-Fa-f0-9]{3,4}, {0,1}){7}[0xA-Fa-f0-9]{3,4}(}})$", RegexOptions.Compiled);
Most terse version I can think of
Len(Trim(TextBox1.Value)) = 0
If you need to do this multiple times, wrap it in a function
Public Function HasContent(text_box as Object) as Boolean
HasContent = (Len(Trim(text_box.Value)) > 0)
End Function
Usage
If HasContent(TextBox1) Then
' ...
In a comment you wrote
i want to show that there is a difference in local and github repo
As already mentioned in another answer, you should do a git fetch origin
first. Then, if the remote is ahead of your current branch, you can list all commits between your local branch and the remote with
git log master..origin/master --stat
If your local branch is ahead:
git log origin/master..master --stat
--stat
shows a list of changed files as well.
If you want to explicitly list the additions and deletions, use git diff
:
git diff master origin/master
below will change link and banner every 10 seconds
<script>
var links = ["http://www.abc.com","http://www.def.com","http://www.ghi.com"];
var images = ["http://www.abc.com/1.gif","http://www.def.com/2.gif","http://www.ghi.com/3gif"];
var i = 0;
var renew = setInterval(function(){
if(links.length == i){
i = 0;
}
else {
document.getElementById("bannerImage").src = images[i];
document.getElementById("bannerLink").href = links[i];
i++;
}
},10000);
</script>
<a id="bannerLink" href="http://www.abc.com" onclick="void window.open(this.href); return false;">
<img id="bannerImage" src="http://www.abc.com/1.gif" width="694" height="83" alt="some text">
</a>
Android comes with a built-in YesNoPreference class that does exactly what you want (a confirm dialog with yes and no options). See the official source code here.
Unfortunately, it is in the com.android.internal.preference
package, which means it is a part of Android's private APIs and you cannot access it from your application (private API classes are subject to change without notice, hence the reason why Google does not let you access them).
Solution: just re-create the class in your application's package by copy/pasting the official source code from the link I provided. I've tried this, and it works fine (there's no reason why it shouldn't).
You can then add it to your preferences.xml
like any other Preference. Example:
<com.example.myapp.YesNoPreference
android:dialogMessage="Are you sure you want to revert all settings to their default values?"
android:key="com.example.myapp.pref_reset_settings_key"
android:summary="Revert all settings to their default values."
android:title="Reset Settings" />
Which looks like this:
Note that for this particular application there's a standard library function, android.text.format.DateUtils.getRelativeTimeSpanString()
.
I think here "inflating a view" means fetching the layout.xml file drawing a view specified in that xml file and POPULATING ( = inflating ) the parent viewGroup with the created View.
If we take a look at the source for bytes.__repr__
, it looks as if the b''
is baked into the method.
The most obvious workaround is to manually slice off the b''
from the resulting repr()
:
>>> x = b'\x01\x02\x03\x04'
>>> print(repr(x))
b'\x01\x02\x03\x04'
>>> print(repr(x)[2:-1])
\x01\x02\x03\x04
Here is another example you can try
private void dataGridView_CellContentClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex == dataGridView.Columns["Select"].Index)
{
dataGridView.EndEdit();
if ((bool)dataGridView.Rows[e.RowIndex].Cells["Select"].Value)
{
//-- checking current select, needs to uncheck any other cells that are checked
foreach(DataGridViewRow row in dataGridView.Rows)
{
if (row.Index == e.RowIndex)
{
dataGridView.Rows[row.Index].SetValues(true);
}
else
{
dataGridView.Rows[row.Index].SetValues(false);
}
}
}
}
}
If you are looking for the amount of time that the associated thread has spent running code inside the application.
You can use ProcessThread.UserProcessorTime
Property which you can get under System.Diagnostics
namespace.
TimeSpan startTime= Process.GetCurrentProcess().Threads[i].UserProcessorTime; // i being your thread number, make it 0 for main
//Write your function here
TimeSpan duration = Process.GetCurrentProcess().Threads[i].UserProcessorTime.Subtract(startTime);
Console.WriteLine($"Time caluclated by CurrentProcess method: {duration.TotalSeconds}"); // This syntax works only with C# 6.0 and above
Note: If you are using multi threads, you can calculate the time of each thread individually and sum it up for calculating the total duration.
Or even easier if you have access to Linq
try
{
RequestPane.Text = System.Xml.Linq.XElement.Parse(RequestPane.Text).ToString();
}
catch (System.Xml.XmlException xex)
{
displayException("Problem with formating text in Request Pane: ", xex);
}
I think you're using less-well-supported Unicode values, which don't always have glyphs for all the code points.
Try the following characters:
☐
]): an empty (unchecked) checkbox☑
]): the checked version of the previous checkbox✓
])✔
])Edit: There seems to be some confusion about the first symbol here, ? / 0x2610. This is an empty (unchecked) checkbox, so if you see a box, that's the way it's supposed to look. It's the counterpart to ? / 0x2611, which is the checked version.
If you just want to compute (column a) % (column b), you don't need apply
, just do it directly:
In [7]: df['a'] % df['c']
Out[7]:
0 -1.132022
1 -0.939493
2 0.201931
3 0.511374
4 -0.694647
5 -0.023486
Name: a
<a href="javascript:;" onClick="if(confirm('Are you sure you want to delete this product')){del_product(id);}else{ }" class="btn btn-xs btn-danger btn-delete" title="Del Product">Delete Product</a>
function del_product(id){
$('.process').css('display','block');
$('.process').html('<img src="./images/loading.gif">');
$.ajax({
'url':'./process.php?action=del_product&id='+id,
'type':"post",
success: function(result){
info=JSON.parse(result);
if(result.status==1){
setTimeout(function(){
$('.process').hide();
$('.tr_'+id).hide();
},3000);
setTimeout(function(){
$('.process').html(result.notice);
},1000);
}else if(result.status==0){
setTimeout(function(){
$('.process').hide();
},3000);
setTimeout(function(){
$('.process').html(result.notice);
},1000);
}
}
});
}
PDFCreator has a COM component, callable from .NET or VBScript (samples included in the download).
But, it seems to me that a printer is just what you need - just mix that with Word's automation, and you should be good to go.
if you are using express framework to node.js
install npm ejs
then add config file
app.set('port', process.env.PORT || 3000);
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');
app.set('view engine', 'jade');
app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.bodyParser());
app.use(express.methodOverride());
app.use(app.router)
;
render the page from exports module form.js
have the html file in the views dir
with extension of ejs file name as
form.html.ejs
then create the form.js
res.render('form.html.ejs');
99% of the time I would use XMLHttpRequest or fetch for something like this. However, there's an alternative solution which doesn't require javascript...
You could include a hidden iframe on your page and set the target attribute of your form to point to that iframe.
<style>
.hide { position:absolute; top:-1px; left:-1px; width:1px; height:1px; }
</style>
<iframe name="hiddenFrame" class="hide"></iframe>
<form action="receiver.pl" method="post" target="hiddenFrame">
<input name="signed" type="checkbox">
<input value="Save" type="submit">
</form>
There are very few scenarios where I would choose this route. Generally handling it with javascript is better because, with javascript you can...
I feel your pain as I, too, am starting out to get Django and React.js working together. Did a couple of Django projects, and I think, React.js is a great match for Django. However, it can be intimidating to get started. We are standing on the shoulders of giants here ;)
Here's how I think, it all works together (big picture, please someone correct me if I'm wrong).
Communication between Django and 'the frontend' is done via the Rest framework. Make sure you get your authorization and permissions for the Rest framework in place.
I found a good boiler template for exactly this scenario and it works out of the box. Just follow the readme https://github.com/scottwoodall/django-react-template and once you are done, you have a pretty nice Django Reactjs project running. By no means this is meant for production, but rather as a way for you to dig in and see how things are connected and working!
One tiny change I'd like to suggest is this: Follow the setup instructions BUT before you get to the 2nd step to setup the backend (Django here https://github.com/scottwoodall/django-react-template/blob/master/backend/README.md), change the requirements file for the setup.
You'll find the file in your project at /backend/requirements/common.pip Replace its content with this
appdirs==1.4.0
Django==1.10.5
django-autofixture==0.12.0
django-extensions==1.6.1
django-filter==1.0.1
djangorestframework==3.5.3
psycopg2==2.6.1
this gets you the latest stable version for Django and its Rest framework.
I hope that helps.
From cran, you can install directly from a github repository address. So if you want the package at https://github.com/twitter/AnomalyDetection
:
library(devtools)
install_github("twitter/AnomalyDetection")
does the trick.
Using importlib worked the best for me.
import importlib
importlib.import_module('accounting.views')
This uses string dot notation for the python module that you want to import.
It's because you have included a leading /
in your file path. The /
makes it start at the top of your filesystem. Note: filesystem path, not Web site path (you're not accessing it over HTTP). You can use a relative path with include_once
(one that doesn't start with a leading /
).
You can change it to this:
include_once 'headerSite.php';
That will look first in the same directory as the file that's including it (i.e. C:\xampp\htdocs\PoliticalForum\
in your example.
Here's another version:
$.fn.digits = function () {
return this.each(function () {
var value = $(this).text();
var decimal = "";
if (value) {
var pos = value.indexOf(".");
if (pos >= 0) {
decimal = value.substring(pos);
value = value.substring(0, pos);
}
if (value) {
value = value.replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
if (!String.isNullOrEmpty(decimal)) value = (value + decimal);
$(this).text(value);
}
}
else {
value = $(this).val()
if (value) {
var pos = value.indexOf(".");
if (pos >= 0) {
decimal = value.substring(pos);
value = value.substring(0, pos);
}
if (value) {
value = value.replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,");
if (!String.isNullOrEmpty(decimal)) value = (value + decimal);
$(this).val(value);
}
}
}
})
};
The main reason ++ comes in handy in C-like languages is for keeping track of indices. In Python, you deal with data in an abstract way and seldom increment through indices and such. The closest-in-spirit thing to ++
is the next
method of iterators.
MobileESP has PHP, Java, APS.NET (C#), Ruby and JavaScript hooks. it has also the Apache 2 licence, so free for commercial use. Key thing for me is it only identifies browsers and platforms not screen sizes and other metrics, which keeps it nice an small.
I realise that this is a rather old post and you have probably moved on.
But I had the same problem as you so I decided to write my own program.
The problem with the "xml -> xsd -> classes" route for me was that it just generated a lump of code that was completely unmaintainable and I ended up turfing it.
It is in no way elegant but it did the job for me.
You can get it here: Please make suggestions if you like it.
If you don't need a plot per say, and you're simply interested in adding color to represent the values in a table format, you can use the style.background_gradient()
method of the pandas data frame. This method colorizes the HTML table that is displayed when viewing pandas data frames in e.g. the JupyterLab Notebook and the result is similar to using "conditional formatting" in spreadsheet software:
import numpy as np
import pandas as pd
index= ['aaa', 'bbb', 'ccc', 'ddd', 'eee']
cols = ['A', 'B', 'C', 'D']
df = pd.DataFrame(abs(np.random.randn(5, 4)), index=index, columns=cols)
df.style.background_gradient(cmap='Blues')
For detailed usage, please see the more elaborate answer I provided on the same topic previously and the styling section of the pandas documentation.
$('.checkbox').prop('checked',true);
$('.checkbox').prop('checked',false);
... works perfectly with jquery1.9.1
Modal In Out Effect with Animate.css and jquery Very easy and short code.
In HTML:
<div class="modal fade" id="DirectorModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
<div class="modal-dialog bounceInDown animated"><!-- Add here Modal COME Effect "Animate.css" -->
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Modal Header</h4>
</div>
<div class="modal-body">
</div>
</div>
</div>
</div>
this bellow jquery code i got from: https://codepen.io/nhembram/pen/PzyYLL
i am modify this for regular use.
jquery code:
<script>
$(document).ready(function () {
// BS MODAL OPEN CLOSE EFFECT ---------------------------------
var timeoutHandler = null;
$('.modal').on('hide.bs.modal', function (e) {
var anim = $('.modal-dialog').removeClass('bounceInDown').addClass('fadeOutDownBig'); // Model Come class Remove & Out effect class add
if (timeoutHandler) clearTimeout(timeoutHandler);
timeoutHandler = setTimeout(function() {
$('.modal-dialog').removeClass('fadeOutDownBig').addClass('bounceInDown'); // Model Out class Remove & Come effect class add
}, 500); // some delay for complete Animation
});
});
</script>
You can do it by using a constructor, like this:
struct Date
{
int day;
int month;
int year;
Date()
{
day=0;
month=0;
year=0;
}
};
or like this:
struct Date
{
int day;
int month;
int year;
Date():day(0),
month(0),
year(0){}
};
In your case bar.c is undefined,and its value depends on the compiler (while a and b were set to true).
I had a similar problem and I fixed with
$('#CompId').select2({
dropdownParent: $('#AssetsModal')
});
and modal with select
<div class="modal fade" id="AssetsModal" role="dialog"
aria-labelledby="exampleModalCenterTitle"
aria-hidden="true" style="overflow:hidden;" >
<div class="modal-dialog modal-dialog-centered" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="exampleModalLongTitle" >?????? ??????</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<form role="form" action="?action=dma_act_documents_assets_insert&Id=<?=$ID?>"
method="post" name="dma_act_documents_assets_insert"
id="dma_act_documents_assets_insert">
<div class="form-group col-sm-12">
<label for="recipient-name" class="col-form-label">?????:</label>
<span style="color: red">*</span>
<select class="form-control js-example-basic-single col-sm-12"
name="CompId" id="CompId">
<option></option>
</select>
</div>
</form>
</div>
</div>
</div>
but I don't know why the select menu is smaller than other fields
and it starting like that when start using select2. When I remove it, all is ok.
Is there some one to share some experince about that.
Thanks.
Do that like this
db.Users.OrderByDescending(u => u.UserId).FirstOrDefault();
EDIT:
Ok I found why the int.ToString() in LINQtoEF fails, please read this post: Problem with converting int to string in Linq to entities
This works on my side :
List<string> materialTypes = (from u in result.Users
select u.LastName)
.Union(from u in result.Users
select SqlFunctions.StringConvert((double) u.UserId)).ToList();
On yours it should be like this:
IList<String> materialTypes = ((from tom in context.MaterialTypes
where tom.IsActive == true
select tom.Name)
.Union(from tom in context.MaterialTypes
where tom.IsActive == true
select SqlFunctions.StringConvert((double)tom.ID))).ToList();
Thanks, i've learnt something today :)
If you don't have Python 2.6 or higher, the alternative is to write an explicit for loop:
def set_list_intersection(set_list):
if not set_list:
return set()
result = set_list[0]
for s in set_list[1:]:
result &= s
return result
set_list = [set([1, 2]), set([1, 3]), set([1, 4])]
print set_list_intersection(set_list)
# Output: set([1])
You can also use reduce
:
set_list = [set([1, 2]), set([1, 3]), set([1, 4])]
print reduce(lambda s1, s2: s1 & s2, set_list)
# Output: set([1])
However, many Python programmers dislike it, including Guido himself:
About 12 years ago, Python aquired lambda, reduce(), filter() and map(), courtesy of (I believe) a Lisp hacker who missed them and submitted working patches. But, despite of the PR value, I think these features should be cut from Python 3000.
So now reduce(). This is actually the one I've always hated most, because, apart from a few examples involving + or *, almost every time I see a reduce() call with a non-trivial function argument, I need to grab pen and paper to diagram what's actually being fed into that function before I understand what the reduce() is supposed to do. So in my mind, the applicability of reduce() is pretty much limited to associative operators, and in all other cases it's better to write out the accumulation loop explicitly.
You can only select a value with the following two ways:
// First way to get a value
value = $("#txt_name").val();
// Second way to get a value
value = $("#txt_name").attr('value');
If you want to use straight JavaScript to get the value, here is how:
document.getElementById('txt_name').value
From the Haskell Wiki:
Haskell has a diverse range of use commercially, from aerospace and defense, to finance, to web startups, hardware design firms and lawnmower manufacturers. This page collects resources on the industrial use of Haskell.
According to Wikipedia, the Haskell language was created out of the need to consolidate existing functional languages into a common one which could be used for future research in functional-language design.
It is apparent based on the information available that it has outgrown it's original purpose and is used for much more than research. It is now considered a general purpose functional programming language.
If you're still asking yourself, "Why should I use it?", then read the Why use it? section of the Haskell Wiki Introduction.
In Python 3.8 version there is a new metadata
module in importlib
package, which can do that as well.
Here is an example from docs:
>>> from importlib.metadata import version
>>> version('requests')
'2.22.0'
This is what iDevelop is trying to say Enabled Property
So you have been infact using enabled
, coz your initial post was enable
..
You may try the following:
Sub disenable()
sheets(1).button1.enabled=false
DoEvents
Application.ScreenUpdating = True
For i = 1 To 10
Application.Wait (Now + TimeValue("0:00:1"))
Next i
sheets(1).button1.enabled = False
End Sub
If you are using Joseph's answer which is a great answer, and you run these back to back like this:
dim i = GetRandom(1, 1715)
dim o = GetRandom(1, 1715)
Then the result could come back the same over and over because it processes the call so quickly. This may not have been an issue in '08, but since the processors are much faster today, the function doesn't allow the system clock enough time to change prior to making the second call.
Since the System.Random() function is based on the system clock, we need to allow enough time for it to change prior to the next call. One way of accomplishing this is to pause the current thread for 1 millisecond. See example below:
Public Function GetRandom(ByVal min as Integer, ByVal max as Integer) as Integer
Static staticRandomGenerator As New System.Random
max += 1
Return staticRandomGenerator.Next(If(min > max, max, min), If(min > max, min, max))
End Function
There is no better way but since it's an operation you usually do quite often, you'd better automatize the process.
Most frameworks offer a way to make arguments parsing an easy task. You can build you own object for that. Quick and dirty example :
class Request
{
// This is the spirit but you may want to make that cleaner :-)
function get($key, $default=null, $from=null)
{
if ($from) :
if (isset(${'_'.$from}[$key]));
return sanitize(${'_'.strtoupper($from)}[$key]); // didn't test that but it should work
else
if isset($_REQUEST[$key])
return sanitize($_REQUEST[$key]);
return $default;
}
// basics. Enforce it with filters according to your needs
function sanitize($data)
{
return addslashes(trim($data));
}
// your rules here
function isEmptyString($data)
{
return (trim($data) === "" or $data === null);
}
function exists($key) {}
function setFlash($name, $value) {}
[...]
}
$request = new Request();
$question= $request->get('question', '', 'post');
print $request->isEmptyString($question);
Symfony use that kind of sugar massively.
But you are talking about more than that, with your "// Handle error here ". You are mixing 2 jobs : getting the data and processing it. This is not the same at all.
There are other mechanisms you can use to validate data. Again, frameworks can show you best pratices.
Create objects that represent the data of your form, then attach processses and fall back to it. It sounds far more work that hacking a quick PHP script (and it is the first time), but it's reusable, flexible, and much less error prone since form validation with usual PHP tends to quickly become spaguetti code.
public class MyDatabaseHelper extends SQLiteOpenHelper {
private static final String DATABASE_NAME = "MyDb.db";
private static final int DATABASE_VERSION = 1;
// Database creation sql statement
private static final String DATABASE_CREATE_FRIDGE_ITEM = "create table FridgeItem(id integer primary key autoincrement,f_id text not null,food_item text not null,quantity text not null,measurement text not null,expiration_date text not null,current_date text not null,flag text not null,location text not null);";
public MyDatabaseHelper(Context context) {
super(context, DATABASE_NAME, null, DATABASE_VERSION);
}
// Method is called during creation of the database
@Override
public void onCreate(SQLiteDatabase database) {
database.execSQL(DATABASE_CREATE_FRIDGE_ITEM);
}
// Method is called during an upgrade of the database,
@Override
public void onUpgrade(SQLiteDatabase database,int oldVersion,int newVersion){
Log.w(MyDatabaseHelper.class.getName(),"Upgrading database from version " + oldVersion + " to "
+ newVersion + ", which will destroy all old data");
database.execSQL("DROP TABLE IF EXISTS FridgeItem");
onCreate(database);
}
}
public class CommentsDataSource {
private MyDatabaseHelper dbHelper;
private SQLiteDatabase database;
public String stringArray[];
public final static String FOOD_TABLE = "FridgeItem"; // name of table
public final static String FOOD_ITEMS_DETAILS = "FoodDetails"; // name of table
public final static String P_ID = "id"; // pid
public final static String FOOD_ID = "f_id"; // id value for food item
public final static String FOOD_NAME = "food_item"; // name of food
public final static String FOOD_QUANTITY = "quantity"; // quantity of food item
public final static String FOOD_MEASUREMENT = "measurement"; // measurement of food item
public final static String FOOD_EXPIRATION = "expiration_date"; // expiration date of food item
public final static String FOOD_CURRENTDATE = "current_date"; // date of food item added
public final static String FLAG = "flag";
public final static String LOCATION = "location";
/**
*
* @param context
*/
public CommentsDataSource(Context context) {
dbHelper = new MyDatabaseHelper(context);
database = dbHelper.getWritableDatabase();
}
public long insertFoodItem(String id, String name,String quantity, String measurement, String currrentDate,String expiration,String flag,String location) {
ContentValues values = new ContentValues();
values.put(FOOD_ID, id);
values.put(FOOD_NAME, name);
values.put(FOOD_QUANTITY, quantity);
values.put(FOOD_MEASUREMENT, measurement);
values.put(FOOD_CURRENTDATE, currrentDate);
values.put(FOOD_EXPIRATION, expiration);
values.put(FLAG, flag);
values.put(LOCATION, location);
return database.insert(FOOD_TABLE, null, values);
}
public long insertFoodItemsDetails(String id, String name,String quantity, String measurement, String currrentDate,String expiration) {
ContentValues values = new ContentValues();
values.put(FOOD_ID, id);
values.put(FOOD_NAME, name);
values.put(FOOD_QUANTITY, quantity);
values.put(FOOD_MEASUREMENT, measurement);
values.put(FOOD_CURRENTDATE, currrentDate);
values.put(FOOD_EXPIRATION, expiration);
return database.insert(FOOD_ITEMS_DETAILS, null, values);
}
public Cursor selectRecords(String id) {
String[] cols = new String[] { FOOD_ID, FOOD_NAME, FOOD_QUANTITY, FOOD_MEASUREMENT, FOOD_EXPIRATION,FLAG,LOCATION,P_ID};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, P_ID+"=?", new String[]{id}, null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor; // iterate to get each value.
}
public Cursor selectAllName() {
String[] cols = new String[] { FOOD_NAME};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, null, null, null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor; // iterate to get each value.
}
public Cursor selectAllRecords(String loc) {
String[] cols = new String[] { FOOD_ID, FOOD_NAME, FOOD_QUANTITY, FOOD_MEASUREMENT, FOOD_EXPIRATION,FLAG,LOCATION,P_ID};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, LOCATION+"=?", new String[]{loc}, null, null, null, null);
int size=mCursor.getCount();
stringArray = new String[size];
int i=0;
if (mCursor != null) {
mCursor.moveToFirst();
FoodInfo.arrayList.clear();
while (!mCursor.isAfterLast()) {
String name=mCursor.getString(1);
stringArray[i]=name;
String quant=mCursor.getString(2);
String measure=mCursor.getString(3);
String expir=mCursor.getString(4);
String id=mCursor.getString(7);
FoodInfo fooditem=new FoodInfo();
fooditem.setName(name);
fooditem.setQuantity(quant);
fooditem.setMesure(measure);
fooditem.setExpirationDate(expir);
fooditem.setid(id);
FoodInfo.arrayList.add(fooditem);
mCursor.moveToNext();
i++;
}
}
return mCursor; // iterate to get each value.
}
public Cursor selectExpDate() {
String[] cols = new String[] {FOOD_NAME, FOOD_QUANTITY, FOOD_MEASUREMENT, FOOD_EXPIRATION};
Cursor mCursor = database.query(true, FOOD_TABLE, cols, null, null, null, null, FOOD_EXPIRATION, null);
int size=mCursor.getCount();
stringArray = new String[size];
if (mCursor != null) {
mCursor.moveToFirst();
FoodInfo.arrayList.clear();
while (!mCursor.isAfterLast()) {
String name=mCursor.getString(0);
String quant=mCursor.getString(1);
String measure=mCursor.getString(2);
String expir=mCursor.getString(3);
FoodInfo fooditem=new FoodInfo();
fooditem.setName(name);
fooditem.setQuantity(quant);
fooditem.setMesure(measure);
fooditem.setExpirationDate(expir);
FoodInfo.arrayList.add(fooditem);
mCursor.moveToNext();
}
}
return mCursor; // iterate to get each value.
}
public int UpdateFoodItem(String id, String quantity, String expiration){
ContentValues values=new ContentValues();
values.put(FOOD_QUANTITY, quantity);
values.put(FOOD_EXPIRATION, expiration);
return database.update(FOOD_TABLE, values, P_ID+"=?", new String[]{id});
}
public void deleteComment(String id) {
System.out.println("Comment deleted with id: " + id);
database.delete(FOOD_TABLE, P_ID+"=?", new String[]{id});
}
}
The simplest way is
>>> a = range(1, 10)
>>> for x in [2, 3, 7]:
... a.remove(x)
...
>>> a
[1, 4, 5, 6, 8, 9]
One possible problem here is that each time you call remove(), all the items are shuffled down the list to fill the hole. So if a
grows very large this will end up being quite slow.
This way builds a brand new list. The advantage is that we avoid all the shuffling of the first approach
>>> removeset = set([2, 3, 7])
>>> a = [x for x in a if x not in removeset]
If you want to modify a
in place, just one small change is required
>>> removeset = set([2, 3, 7])
>>> a[:] = [x for x in a if x not in removeset]
I've got another idea. What if you create this table-based function:
CREATE FUNCTION tbfSelectFromView
(
-- Add the parameters for the function here
@SessionGUID UNIQUEIDENTIFIER
)
RETURNS TABLE
AS
RETURN
(
SELECT *
FROM Report_Opener
WHERE SessionGUID = @SessionGUID
ORDER BY CurrencyTypeOrder, Rank
)
GO
And then selected from it using the following statement (even putting this in your SP):
SELECT *
FROM tbfSelectFromView(@SessionGUID)
It looks like what's happening (which everybody has already commented on) is that SQL Server just makes an assumption somewhere that's wrong, and maybe this will force it to correct the assumption. I hate to add the extra step, but I'm not sure what else might be causing it.
Addition to Alex' answer:
$(function() {
$('input[type="submit"]').prop('disabled', true);
$('#check').on('input', function(e) {
if(this.value.length === 6) {
$('input[type="submit"]').prop('disabled', false);
} else {
$('input[type="submit"]').prop('disabled', true);
}
});
});
<input type="text" maxlength="6" id="check" data-minlength="6" /><br />
<input type="submit" value="send" />
But: You should always remember to validate the user input on the server side again. The user could modify the local HTML or disable JavaScript.
I had the same problem and I found this solution working with bindParam :
bindParam(':param', $myvar = NULL, PDO::PARAM_INT);
You need to add the jar file in the classpath. To compile your java class:
javac -cp .;jwitter.jar MyClass.java
To run your code (provided that MyClass contains a main method):
java -cp .;jwitter.jar MyClass
You can have the jar file anywhere. The above work if the jar file is in the same directory as your java file.
Sort file list with java 8 Collections
Example how to use Collections and Comparator Java 8 to sort a File list.
import java.io.File;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
public class ShortFile {
public static void main(String[] args) {
List<File> fileList = new ArrayList<>();
fileList.add(new File("infoSE-201904270100.txt"));
fileList.add(new File("infoSE-201904280301.txt"));
fileList.add(new File("infoSE-201904280101.txt"));
fileList.add(new File("infoSE-201904270101.txt"));
fileList.forEach(x -> System.out.println(x.getName()));
Collections.sort(fileList, Comparator.comparing(File::getName).reversed());
System.out.println("===========================================");
fileList.forEach(x -> System.out.println(x.getName()));
}
}
Use:
/*/ITEM[starts-with(REVENUE_YEAR,'2552')]/REGION
Note: Unless your host language can't handle element instance as result, do not use text nodes specially in mixed content data model. Do not start expressions with //
operator when the schema is well known.
Yes I think this would be quicker.
Get-ChildItem $folder | Sort-Object -Descending -Property LastWriteTime -Top 1
If you want to sum
all values of one column, it's more efficient to use DataFrame
's internal RDD
and reduce
.
import sqlContext.implicits._
import org.apache.spark.sql.functions._
val df = sc.parallelize(Array(10,2,3,4)).toDF("steps")
df.select(col("steps")).rdd.map(_(0).asInstanceOf[Int]).reduce(_+_)
//res1 Int = 19
adding to CMS's answer, this is a more generic approach of toggle_visibility
I've just used myself:
function toggle_visibility(className,display) {
var elements = getElementsByClassName(document, className),
n = elements.length;
for (var i = 0; i < n; i++) {
var e = elements[i];
if(display.length > 0) {
e.style.display = display;
} else {
if(e.style.display == 'block') {
e.style.display = 'none';
} else {
e.style.display = 'block';
}
}
}
}
You must use
list.remove(indexYouWantToReplace);
first.
Your elements will become like this. [zero, one, three]
then add this
list.add(indexYouWantedToReplace, newElement)
Your elements will become like this. [zero, one, new, three]
An ImageView gets setLayoutParams from View which uses ViewGroup.LayoutParams. If you use that, it will crash in most cases so you should use getLayoutParams() which is in View.class. This will inherit the parent View of the ImageView and will work always. You can confirm this here: ImageView extends view
Assuming you have an ImageView defined as 'image_view' and the width/height int defined as 'thumb_size'
The best way to do this:
ViewGroup.LayoutParams iv_params_b = image_view.getLayoutParams();
iv_params_b.height = thumb_size;
iv_params_b.width = thumb_size;
image_view.setLayoutParams(iv_params_b);
One obvious solution would be to use javascript (which is not JSF). To implement this by JSF you should use AJAX. In this example, I use a radio button group to show and hide two set of components. In the back bean, I define a boolean switch.
private boolean switchComponents;
public boolean isSwitchComponents() {
return switchComponents;
}
public void setSwitchComponents(boolean switchComponents) {
this.switchComponents = switchComponents;
}
When the switch is true, one set of components will be shown and when it is false the other set will be shown.
<h:selectOneRadio value="#{backbean.switchValue}">
<f:selectItem itemLabel="showComponentSetOne" itemValue='true'/>
<f:selectItem itemLabel="showComponentSetTwo" itemValue='false'/>
<f:ajax event="change" execute="@this" render="componentsRoot"/>
</h:selectOneRadio>
<H:panelGroup id="componentsRoot">
<h:panelGroup rendered="#{backbean.switchValue}">
<!--switchValue to be shown on switch value == true-->
</h:panelGroup>
<h:panelGroup rendered="#{!backbean.switchValue}">
<!--switchValue to be shown on switch value == false-->
</h:panelGroup>
</H:panelGroup>
Note: on the ajax event we render components root. because components which are not rendered in the first place can't be re-rendered on the ajax event.
Also, note that if the "componentsRoot" and radio buttons are under different component hierarchy. you should reference it from the root (form root).
To access "Host Manager" you have to configure "admin-gui" user inside the tomcat-users.xml
Just add the below lines[change username & pwd] :
<role rolename="admin-gui"/>
<user username="admin" password="password" roles="admin-gui"/>
Restart tomcat 7 server and you are done.
I've just come across this, and thought I'd add my thoughts. As others have suggested, I'd recommend manually adding IDs, but if you really want something close to what you've described, you could use this:
var objectId = (function () {
var allObjects = [];
var f = function(obj) {
if (allObjects.indexOf(obj) === -1) {
allObjects.push(obj);
}
return allObjects.indexOf(obj);
}
f.clear = function() {
allObjects = [];
};
return f;
})();
You can get any object's ID by calling objectId(obj)
. Then if you want the id to be a property of the object, you can either extend the prototype:
Object.prototype.id = function () {
return objectId(this);
}
or you can manually add an ID to each object by adding a similar function as a method.
The major caveat is that this will prevent the garbage collector from destroying objects when they drop out of scope... they will never drop out of the scope of the allObjects
array, so you might find memory leaks are an issue. If your set on using this method, you should do so for debugging purpose only. When needed, you can do objectId.clear()
to clear the allObjects
and let the GC do its job (but from that point the object ids will all be reset).
Alternatively, you could set the .AcceptButton property of your form. Enter will automcatically create a click event.
this.AcceptButton = this.buttonSearch;
This is somewhat a go around solution but it worked for me I hope it works for this problem for others as well:
You can run the select SQL query on the table that you want to export and save the result as .xls in you drive.
Now create the table you want to add data with all the columns and indexes. This can be easily done with the right click on the actual table and selecting Create To script option.
Now you can right click on the DB where you want to add you table and select the Tasks>Import .
Import Export wizard opens and select next.Select the Microsoft Excel as input Data source and then browse and select the .xls file you have saved earlier.
Now select the destination server and also the destination table we have created already.
Note:If there is any identity based field, in the destination table you might want to remove the identity property as this data will also be inserted . So if you had this one as Identity property only then it would error out the import process.
Now hit next and hit finish and it will show you how many records are being imported and return success if no errors occur.
Python is not Java, nor C/C++ -- you need to stop thinking that way to really utilize the power of Python.
Python does not have pass-by-value, nor pass-by-reference, but instead uses pass-by-name (or pass-by-object) -- in other words, nearly everything is bound to a name that you can then use (the two obvious exceptions being tuple- and list-indexing).
When you do spam = "green"
, you have bound the name spam
to the string object "green"
; if you then do eggs = spam
you have not copied anything, you have not made reference pointers; you have simply bound another name, eggs
, to the same object ("green"
in this case). If you then bind spam
to something else (spam = 3.14159
) eggs
will still be bound to "green"
.
When a for-loop executes, it takes the name you give it, and binds it in turn to each object in the iterable while running the loop; when you call a function, it takes the names in the function header and binds them to the arguments passed; reassigning a name is actually rebinding a name (it can take a while to absorb this -- it did for me, anyway).
With for-loops utilizing lists, there are two basic ways to assign back to the list:
for i, item in enumerate(some_list):
some_list[i] = process(item)
or
new_list = []
for item in some_list:
new_list.append(process(item))
some_list[:] = new_list
Notice the [:]
on that last some_list
-- it is causing a mutation of some_list
's elements (setting the entire thing to new_list
's elements) instead of rebinding the name some_list
to new_list
. Is this important? It depends! If you have other names besides some_list
bound to the same list object, and you want them to see the updates, then you need to use the slicing method; if you don't, or if you do not want them to see the updates, then rebind -- some_list = new_list
.
UPDATE
Consider avoiding createObjectURL()
method, while browsers are disabling support for it. Just attach MediaStream
object directly to the srcObject
property of HTMLMediaElement
e.g. <video>
element.
const mediaStream = new MediaStream();
const video = document.getElementById('video-player');
video.srcObject = mediaStream;
However, if you need to work with MediaSource
, Blob
or File
, you have to create a URL with URL.createObjectURL()
and assign it to HTMLMediaElement.src
.
Read more details here: https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/srcObject
Older Answer
I experienced same error, when I passed to createObjectURL
raw data:
window.URL.createObjectURL(data)
It has to be Blob
, File
or MediaSource
object, not data itself. This worked for me:
var binaryData = [];
binaryData.push(data);
window.URL.createObjectURL(new Blob(binaryData, {type: "application/zip"}))
Check also the MDN for more info: https://developer.mozilla.org/en-US/docs/Web/API/URL/createObjectURL
char * const a;
*a
is writable, but a
is not; in other words, you can modify the value pointed to by a
, but you cannot modify a
itself. a
is a constant pointer to char
.
const char * a;
a
is writable, but *a
is not; in other words, you can modify a
(pointing it to a new location), but you cannot modify the value pointed to by a
.
Note that this is identical to
char const * a;
In this case, a
is a pointer to a const char
.
I'm using requests 2.2.1 and eventlet didn't work for me. Instead I was able use gevent timeout instead since gevent is used in my service for gunicorn.
import gevent
import gevent.monkey
gevent.monkey.patch_all(subprocess=True)
try:
with gevent.Timeout(5):
ret = requests.get(url)
print ret.status_code, ret.content
except gevent.timeout.Timeout as e:
print "timeout: {}".format(e.message)
Please note that gevent.timeout.Timeout is not caught by general Exception handling.
So either explicitly catch gevent.timeout.Timeout
or pass in a different exception to be used like so: with gevent.Timeout(5, requests.exceptions.Timeout):
although no message is passed when this exception is raised.
Implementations are free to set limits on JSON documents, including the size, so choose your parser wisely. See RFC 7159, Section 9. Parsers:
"An implementation may set limits on the size of texts that it accepts. An implementation may set limits on the maximum depth of nesting. An implementation may set limits on the range and precision of numbers. An implementation may set limits on the length and character contents of strings."
It means the address you are trying to bind the server to is in use. Try another port or close the program using that port.
I have a better way of doing this:
@Entity
public class Person {
@OneToOne(cascade={javax.persistence.CascadeType.ALL})
@JoinColumn(name = "`Id_OtherInfo`")
public OtherInfo getOtherInfo() {
return otherInfo;
}
}
That's all
The preferred method for passing an array of values to a stored procedure in SQL server is to use table valued parameters.
First you define the type like this:
CREATE TYPE UserList AS TABLE ( UserID INT );
Then you use that type in the stored procedure:
create procedure [dbo].[get_user_names]
@user_id_list UserList READONLY,
@username varchar (30) output
as
select last_name+', '+first_name
from user_mstr
where user_id in (SELECT UserID FROM @user_id_list)
So before you call that stored procedure, you fill a table variable:
DECLARE @UL UserList;
INSERT @UL VALUES (5),(44),(72),(81),(126)
And finally call the SP:
EXEC dbo.get_user_names @UL, @username OUTPUT;
If the image is in your resources folder and its build action is set to Resource. You can reference the image in XAML as follows:
"pack://application:,,,/Resources/Search.png"
Assuming you do not have any folder structure under the Resources folder and it is an application. For example I use:
ImageSource="pack://application:,,,/Resources/RibbonImages/CloseButton.png"
when I have a folder named RibbonImages under Resources folder.
You can use console.log()
in Firebug or Chrome to get a good object view here, like this:
$.getJSON('my.json', function(data) {
console.log(data);
});
If you just want to view the string, look at the Resource view in Chrome or the Net view in Firebug to see the actual string response from the server (no need to convert it...you received it this way).
If you want to take that string and break it down for easy viewing, there's an excellent tool here: http://json.parser.online.fr/
If you have JQuery loaded already, you can just do this:
$('body').css('background-image', 'url(../images/backgrounds/header-top.jpg)');
EDIT:
First load JQuery in the head tag:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" type="text/javascript"></script>
Then call the Javascript to change the background image when something happens on the page, like when it finishes loading:
<script type="text/javascript">
$(document).ready(function() {
$('body').css('background-image', 'url(../images/backgrounds/header-top.jpg)');
});
</script>
You can do:
$("#country.save")...
OR
$("a#country.save")...
OR
$("a.save#country")...
as you prefer.
So yes you can specify a selector that has to match ID and class (and potentially tag name and anything else you want to throw in).
During ssh session my connection broke, since then I cannot ssh my SRV, I had started a new instance, and I'm able to ssh the new instance (with the same key).
I mounted the old volume to the new machine, and check the .ssh/authorized_key and couldn't find any problem with permission or content.
I got it to work, but the solution is a bit complex, so bear with me.
As it is, Internet Explorer gives lower level of trust to IFRAME pages (IE calls this "third-party" content). If the page inside the IFRAME doesn't have a Privacy Policy, its cookies are blocked (which is indicated by the eye icon in status bar, when you click on it, it shows you a list of blocked URLs).
(source: piskvor.org)
In this case, when cookies are blocked, session identifier is not sent, and the target script throws a 'session not found' error.
(I've tried setting the session identifier into the form and loading it from POST variables. This would have worked, but for political reasons I couldn't do that.)
It is possible to make the page inside the IFRAME more trusted: if the inner page sends a P3P header with a privacy policy that is acceptable to IE, the cookies will be accepted.
A good starting point is the W3C tutorial. I've gone through it, downloaded the IBM Privacy Policy Editor and there I created a representation of the privacy policy and gave it a name to reference it by (here it was policy1
).
NOTE: at this point, you actually need to find out if your site has a privacy policy, and if not, create it - whether it collects user data, what kind of data, what it does with it, who has access to it, etc. You need to find this information and think about it. Just slapping together a few tags will not cut it. This step cannot be done purely in software, and may be highly political (e.g. "should we sell our click statistics?").
(e.g. "the site is operated by ACME Ltd., it uses anonymous per-session identifiers for its operation, collects user data only if explicitly permitted and only for the following purposes, the data is stored only as long as necessary, only our company has access to it, etc. etc.").
(When editing with this tool, it's possible to view errors/omissions in the policy. Also very useful is the tab "HTML Policy": at the bottom, it has a "Policy Evaluation" - a quick check if the policy will be blocked by IE's default settings)
The Editor exports to a .p3p file, which is an XML representation of the above policy. Also, it can export a "compact version" of this policy.
Then a Policy Reference file (http://example.com/w3c/p3p.xml
) was needed (an index of privacy policies the site uses):
<META>
<POLICY-REFERENCES>
<POLICY-REF about="/w3c/example-com.p3p#policy1">
<INCLUDE>/</INCLUDE>
<COOKIE-INCLUDE/>
</POLICY-REF>
</POLICY-REFERENCES>
</META>
The <INCLUDE>
shows all URIs that will use this policy (in my case, the whole site). The policy file I've exported from the Editor was uploaded to http://example.com/w3c/example-com.p3p
I've set the webserver at example.com to send the compact header with responses, like this:
HTTP/1.1 200 OK
P3P: policyref="/w3c/p3p.xml", CP="IDC DSP COR IVAi IVDi OUR TST"
// ... other headers and content
policyref
is a relative URI to the Policy Reference file (which in turn references the privacy policies), CP
is the compact policy representation. Note that the combination of P3P headers in the example may not be applicable on your specific website; your P3P headers MUST truthfully represent your own privacy policy!
In this configuration, the Evil Eye does not appear, the cookies are saved even in the IFRAME, and the application works.
Several people have suggested "just slap some tags into your P3P header, until the Evil Eye gives up".
The tags are not only a bunch of bits, they have real world meanings, and their use gives you real world responsibilities!
For example, pretending that you never collect user data might make the browser happy, but if you actually collect user data, the P3P is conflicting with reality. Plain and simple, you are purposefully lying to your users, and that might be criminal behavior in some countries. As in, "go to jail, do not collect $200".
A few examples (see p3pwriter for the full set of tags):
STP
but don't have a retention policy, you may be committing fraud. How cool is that? Not at all.)I'm not a lawyer, but I'm not willing to go to court to see if the P3P header is really legally binding or if you can promise your users anything without actually willing to honor your promises.
Instead of
data: $(this).serialize() + '&=NonFormValue' + NonFormValue,
you probably want
data: $(this).serialize() + '&NonFormValue=' + NonFormValue,
You should be careful to URL-encode the value of NonFormValue
if it might contain any special characters.
To "find where the data I get comes from", you can start SQL Profiler, start your report or application, and you will see all the queries issued against your database.
You can simply specify a series of images like this:
\includegraphics<1>{A}
\includegraphics<2>{B}
\includegraphics<3>{C}
This will produce three slides with the images A to C in exactly the same position.
Just set the SelectedPath property before calling ShowDialog.
fdbLocation.SelectedPath = myFolder;
Here's an example that actually filters for BIN files. Also Windows now want you to save files to user locations, not system locations, so here's an example (you can use intellisense to browse the other options):
var saveFileDialog = new Microsoft.Win32.SaveFileDialog()
{
DefaultExt = "*.xml",
Filter = "BIN Files (*.bin)|*.bin",
InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments),
};
var result = saveFileDialog.ShowDialog();
if (result != null && result == true)
{
// Save the file here
}
I had a false response for the following:
fputs($connection, 'STARTTLS'.$newLine);
turns out I use the wrong connection variable, so I just had to change it to:
fputs($smtpConnect, 'STARTTLS'.$newLine);
If using TLS remember to put HELO before and after:
fputs($smtpConnect, 'HELO '.$localhost . $newLine);
$response = fgets($smtpConnect, 515);
if($secure == 'tls')
{
fputs($smtpConnect, 'STARTTLS'.$newLine);
$response = fgets($smtpConnect, 515);
stream_socket_enable_crypto($smtpConnect, true, STREAM_CRYPTO_METHOD_TLS_CLIENT);
// Say hello again!
fputs($smtpConnect, 'HELO '.$localhost . $newLine);
$response = fgets($smtpConnect, 515);
}
My default 3306 port was in use, so Ive changed it to 8111, then I had this error. Ive fixed it by adding
$cfg['Servers'][$i]['port'] = '8111';
into config.inc.php . If you are using different port number then set yours.
SQL Server:
select * from table
except
select top N * from table
Oracle up to 11.2:
select * from table
minus
select * from table where rownum <= N
with TableWithNum as (
select t.*, rownum as Num
from Table t
)
select * from TableWithNum where Num > N
Oracle 12.1 and later (following standard ANSI SQL)
select *
from table
order by some_column
offset x rows
fetch first y rows only
They may meet your needs more or less.
There is no direct way to do what you want by SQL. However, it is not a design flaw, in my opinion.
SQL is not supposed to be used like this.
In relational databases, a table represents a relation, which is a set by definition. A set contains unordered elements.
Also, don't rely on the physical order of the records. The row order is not guaranteed by the RDBMS.
If the ordering of the records is important, you'd better add a column such as `Num' to the table, and use the following query. This is more natural.
select *
from Table
where Num > N
order by Num
Do not use CDATA in HTML4 but you should use CDATA in XHTML and must use CDATA in XML if you have unescaped symbols like < and >.
We should have the projects which include (at least) all the filtered tags, or said in a different way, exclude the ones which doesn't include all those filtered tags.
So we can use Linq Except
to get those tags which are not included. Then we can use Count() == 0
to have only those which excluded no tags:
var res = projects.Where(p => filteredTags.Except(p.Tags).Count() == 0);
Or we can make it slightly faster with by replacing Count() == 0
with !Any()
:
var res = projects.Where(p => !filteredTags.Except(p.Tags).Any());
For Swift 3
override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
if UIDevice.current.orientation.isLandscape {
//Landscape
}
else if UIDevice.current.orientation.isFlat {
//isFlat
}
else {
//Portrait
}
}
Here a combination of markers and colors from a qualitative colormap in matplotlib
:
import itertools
import numpy as np
from matplotlib import markers
import matplotlib.pyplot as plt
m_styles = markers.MarkerStyle.markers
N = 60
colormap = plt.cm.Dark2.colors # Qualitative colormap
for i, (marker, color) in zip(range(N), itertools.product(m_styles, colormap)):
plt.scatter(*np.random.random(2), color=color, marker=marker, label=i)
plt.legend(bbox_to_anchor=(1.05, 1), loc=2, borderaxespad=0., ncol=4);
Android Studio can now show this. Go to Build
> Analyze APK...
and select your apk. Then you can see the content of the AndroidManifset file.
You can have multiple registries for scoped packages in your .npmrc
file. For example:
@polymer:registry=<url register A>
registry=http://localhost:4873/
Packages under @polymer
scope will be received from https://registry.npmjs.org, but the rest will be received from your local NPM.
In the case you need to remove line breaks from the begin or end of the string, you may use this:
UPDATE table
SET field = regexp_replace(field, E'(^[\\n\\r]+)|([\\n\\r]+$)', '', 'g' );
Have in mind that the hat ^
means the begin of the string and the dollar sign $
means the end of the string.
Hope it help someone.
Password boxes are also textboxes, so if you need them too:
$("input[type='text'], textarea, input[type='password']").css({width: "90%"});
and while file-input is a bit different, you may want to include them too (eg. for visual consistency):
$("input[type='text'], textarea, input[type='password'], input[type='file']").css({width: "90%"});
Add System.ServiceModel
in references
Using SyndicationFeed
:
string url = "http://fooblog.com/feed";
XmlReader reader = XmlReader.Create(url);
SyndicationFeed feed = SyndicationFeed.Load(reader);
reader.Close();
foreach (SyndicationItem item in feed.Items)
{
String subject = item.Title.Text;
String summary = item.Summary.Text;
...
}
The Swift version of maxkonovalov's answer is this:
player.addObserver(self, forKeyPath: "rate", options: NSKeyValueObservingOptions.New, context: nil)
and
override func observeValueForKeyPath(keyPath: String?, ofObject object: AnyObject?, change: [String : AnyObject]?, context: UnsafeMutablePointer<Void>) {
if keyPath == "rate" {
if let rate = change?[NSKeyValueChangeNewKey] as? Float {
if rate == 0.0 {
print("playback stopped")
}
if rate == 1.0 {
print("normal playback")
}
if rate == -1.0 {
print("reverse playback")
}
}
}
}
Thank you maxkonovalov!
In Java 9 you have the even more elegant solution of using immutable lists via the new convenience factory method List.of
:
List<String> immutableList = List.of("one","two","three");
(shamelessly copied from here )
Postman is the best application to test your APIs !
You can import or export your routes and let him remember all your body requests ! :)
EDIT : This comment is 5 yea's old and deprecated :D
Here's the new Postman App : https://www.postman.com/
If you want to change whether it highlights the best fitting possibility, use:
Ctrl + Alt + Space
Yes, you can set inputs of components displayed via router outlets. Sadly, you have to do it programmatically, as mentioned in other answers. There's a big caveat to that when observables are involved (described below).
Here's how:
(1) Hook up to the router-outlet's activate
event in the parent template:
<router-outlet (activate)="onOutletLoaded($event)"></router-outlet>
(2) Switch to the parent's typescript file and set the child component's inputs programmatically each time they are activated:
onOutletLoaded(component) {
component.node = 'someValue';
}
Done.
However, the above version of onOutletLoaded
is simplified for clarity. It only works if you can guarantee all child components have the exact same inputs you are assigning. If you have components with different inputs, use type guards:
onChildLoaded(component: MyComponent1 | MyComponent2) {
if (component instanceof MyComponent1) {
component.someInput = 123;
} else if (component instanceof MyComponent2) {
component.anotherInput = 456;
}
}
Why may this method be preferred over the service method?
Neither this method nor the service method are "the right way" to communicate with child components (both methods step away from pure template binding), so you just have to decide which way feels more appropriate for the project.
This method, however, avoids the tight coupling associated with the "create a service for communication" approach (i.e., the parent needs the service, and the children all need the service, making the children unusable elsewhere). Decoupling is usually preferred.
In many cases this method also feels closer to the "angular way" because you can continue passing data to your child components through @Inputs (thats the decoupling part - this enables re-use elsewhere). It's also a good fit for already existing or third-party components that you don't want to or can't tightly couple with your service.
On the other hand, it may feel less like the angular way when...
Caveat
The caveat with this method is that since you are passing data in the typescript file, you no longer have the option of using the pipe-async pattern used in templates (e.g. {{ myObservable$ | async }}
) to automagically use and pass on your observable data to child components.
Instead, you'll need to set up something to get the current observable values whenever the onChildLoaded
function is called. This will likely also require some teardown in the parent component's onDestroy
function. This is nothing too unusual, there are often cases where this needs to be done, such as when using an observable that doesn't even get to the template.
Python's power operator is **
and Euler's number is math.e
, so:
from math import e
x.append(1-e**(-value1**2/2*value2**2))
Add this to your code:
.child { width: 100%; }
We know that a block-level child is supposed to occupy the full width of the parent.
Chrome understands this.
IE11, for whatever reason, wants an explicit request.
Using flex-basis: 100%
or flex: 1
also works.
.parent {_x000D_
display: flex;_x000D_
flex-direction: column;_x000D_
width: 400px;_x000D_
border: 1px solid red;_x000D_
align-items: center;_x000D_
}_x000D_
.child {_x000D_
border: 1px solid blue;_x000D_
width: calc(100% - 2px); /* NEW; used calc to adjust for parent borders */_x000D_
}
_x000D_
<div class="parent">_x000D_
<div class="child">_x000D_
Lorem Ipsum is simply dummy text of the printing and typesetting industry_x000D_
</div>_x000D_
<div class="child">_x000D_
Lorem Ipsum is simply dummy text of the printing and typesetting industry_x000D_
</div>_x000D_
</div>
_x000D_
Note: Sometimes it will be necessary to sort through the various levels of the HTML structure to pinpoint which container gets the width: 100%
. CSS wrap text not working in IE
myList.setOnItemClickListener(new OnItemClickListener() {
public void onItemClick(AdapterView<?> adapter, View v, int position, long id) {
MyClass selItem = (MyClass) adapter.getItem(position);
}
}
You can use the Google Collections API for that, recently renamed to Guava, specifically a BiMap
A bimap (or "bidirectional map") is a map that preserves the uniqueness of its values as well as that of its keys. This constraint enables bimaps to support an "inverse view", which is another bimap containing the same entries as this bimap but with reversed keys and values.
I recommend using the ValueProvider property of the controller, much in the way that UpdateModel/TryUpdateModel do to extract the route, query, and form parameters required. This will keep your method signatures from potentially growing very large and being subject to frequent change. It also makes it a little easier to test since you can supply a ValueProvider to the controller during unit tests.
a <div>
can be focused if it has a tabindex
attribute. (the value can be set to -1)
For example:
$("#focus_point").attr("tabindex",-1).focus();
In addition, consider setting outline: none !important;
so it displayed without a focus rectangle.
var element = $("#focus_point");
element.css('outline', 'none !important')
.attr("tabindex", -1)
.focus();
If you don't use docker-compose you can do it like this:
FROM node:10
WORKDIR /usr/src/app
RUN npm install -g @angular/cli
COPY package.json ./
RUN npm install
EXPOSE 5000
CMD ng serve --port 5000 --host 0.0.0.0
Then you build it: docker build -t myname .
and you run it by adding two volumes, the second one without source: docker run --rm -it -p 5000:5000 -v "$PWD":/usr/src/app/ -v /usr/src/app/node_modules myname
You may interest in using php's inbuilt function realpath(). and passing a constant DIR
for example: $TargetDirectory = realpath(__DIR__."/../.."); //Will take you 2 folder's back
String realpath() :: Returns canonicalized absolute pathname ..
I found this easier to understand:
List<string> names = new List<string> { "One", "Two", "Three", "Four", "Five" };
for (int i = 0; i < names.Count; i++)
{
Console.WriteLine(names[i]);
}
You might also consider using the built-in Python module, cgitb, to get some really good, nicely formatted exception information including local variable values, source code context, function parameters etc..
For instance for this code...
import cgitb
cgitb.enable(format='text')
def func2(a, divisor):
return a / divisor
def func1(a, b):
c = b - 5
return func2(a, c)
func1(1, 5)
we get this exception output...
ZeroDivisionError
Python 3.4.2: C:\tools\python\python.exe
Tue Sep 22 15:29:33 2015
A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
c:\TEMP\cgittest2.py in <module>()
7 def func1(a, b):
8 c = b - 5
9 return func2(a, c)
10
11 func1(1, 5)
func1 = <function func1>
c:\TEMP\cgittest2.py in func1(a=1, b=5)
7 def func1(a, b):
8 c = b - 5
9 return func2(a, c)
10
11 func1(1, 5)
global func2 = <function func2>
a = 1
c = 0
c:\TEMP\cgittest2.py in func2(a=1, divisor=0)
3
4 def func2(a, divisor):
5 return a / divisor
6
7 def func1(a, b):
a = 1
divisor = 0
ZeroDivisionError: division by zero
__cause__ = None
__class__ = <class 'ZeroDivisionError'>
__context__ = None
__delattr__ = <method-wrapper '__delattr__' of ZeroDivisionError object>
__dict__ = {}
__dir__ = <built-in method __dir__ of ZeroDivisionError object>
__doc__ = 'Second argument to a division or modulo operation was zero.'
__eq__ = <method-wrapper '__eq__' of ZeroDivisionError object>
__format__ = <built-in method __format__ of ZeroDivisionError object>
__ge__ = <method-wrapper '__ge__' of ZeroDivisionError object>
__getattribute__ = <method-wrapper '__getattribute__' of ZeroDivisionError object>
__gt__ = <method-wrapper '__gt__' of ZeroDivisionError object>
__hash__ = <method-wrapper '__hash__' of ZeroDivisionError object>
__init__ = <method-wrapper '__init__' of ZeroDivisionError object>
__le__ = <method-wrapper '__le__' of ZeroDivisionError object>
__lt__ = <method-wrapper '__lt__' of ZeroDivisionError object>
__ne__ = <method-wrapper '__ne__' of ZeroDivisionError object>
__new__ = <built-in method __new__ of type object>
__reduce__ = <built-in method __reduce__ of ZeroDivisionError object>
__reduce_ex__ = <built-in method __reduce_ex__ of ZeroDivisionError object>
__repr__ = <method-wrapper '__repr__' of ZeroDivisionError object>
__setattr__ = <method-wrapper '__setattr__' of ZeroDivisionError object>
__setstate__ = <built-in method __setstate__ of ZeroDivisionError object>
__sizeof__ = <built-in method __sizeof__ of ZeroDivisionError object>
__str__ = <method-wrapper '__str__' of ZeroDivisionError object>
__subclasshook__ = <built-in method __subclasshook__ of type object>
__suppress_context__ = False
__traceback__ = <traceback object>
args = ('division by zero',)
with_traceback = <built-in method with_traceback of ZeroDivisionError object>
The above is a description of an error in a Python program. Here is
the original traceback:
Traceback (most recent call last):
File "cgittest2.py", line 11, in <module>
func1(1, 5)
File "cgittest2.py", line 9, in func1
return func2(a, c)
File "cgittest2.py", line 5, in func2
return a / divisor
ZeroDivisionError: division by zero
bool Square::IsOverlappig(Square &other)
{
bool result1 = other.x >= x && other.y >= y && other.x <= (x + width) && other.y <= (y + height); // other's top left falls within this area
bool result2 = other.x >= x && other.y <= y && other.x <= (x + width) && (other.y + other.height) <= (y + height); // other's bottom left falls within this area
bool result3 = other.x <= x && other.y >= y && (other.x + other.width) <= (x + width) && other.y <= (y + height); // other's top right falls within this area
bool result4 = other.x <= x && other.y <= y && (other.x + other.width) >= x && (other.y + other.height) >= y; // other's bottom right falls within this area
return result1 | result2 | result3 | result4;
}
This page provides great understanding about the constructor
and destructor
attribute implementation and the sections within within ELF that allow them to work. After digesting the information provided here, I compiled a bit of additional information and (borrowing the section example from Michael Ambrus above) created an example to illustrate the concepts and help my learning. Those results are provided below along with the example source.
As explained in this thread, the constructor
and destructor
attributes create entries in the .ctors
and .dtors
section of the object file. You can place references to functions in either section in one of three ways. (1) using either the section
attribute; (2) constructor
and destructor
attributes or (3) with an inline-assembly call (as referenced the link in Ambrus' answer).
The use of constructor
and destructor
attributes allow you to additionally assign a priority to the constructor/destructor to control its order of execution before main()
is called or after it returns. The lower the priority value given, the higher the execution priority (lower priorities execute before higher priorities before main() -- and subsequent to higher priorities after main() ). The priority values you give must be greater than100
as the compiler reserves priority values between 0-100 for implementation. Aconstructor
or destructor
specified with priority executes before a constructor
or destructor
specified without priority.
With the 'section' attribute or with inline-assembly, you can also place function references in the .init
and .fini
ELF code section that will execute before any constructor and after any destructor, respectively. Any functions called by the function reference placed in the .init
section, will execute before the function reference itself (as usual).
I have tried to illustrate each of those in the example below:
#include <stdio.h>
#include <stdlib.h>
/* test function utilizing attribute 'section' ".ctors"/".dtors"
to create constuctors/destructors without assigned priority.
(provided by Michael Ambrus in earlier answer)
*/
#define SECTION( S ) __attribute__ ((section ( S )))
void test (void) {
printf("\n\ttest() utilizing -- (.section .ctors/.dtors) w/o priority\n");
}
void (*funcptr1)(void) SECTION(".ctors") =test;
void (*funcptr2)(void) SECTION(".ctors") =test;
void (*funcptr3)(void) SECTION(".dtors") =test;
/* functions constructX, destructX use attributes 'constructor' and
'destructor' to create prioritized entries in the .ctors, .dtors
ELF sections, respectively.
NOTE: priorities 0-100 are reserved
*/
void construct1 () __attribute__ ((constructor (101)));
void construct2 () __attribute__ ((constructor (102)));
void destruct1 () __attribute__ ((destructor (101)));
void destruct2 () __attribute__ ((destructor (102)));
/* init_some_function() - called by elf_init()
*/
int init_some_function () {
printf ("\n init_some_function() called by elf_init()\n");
return 1;
}
/* elf_init uses inline-assembly to place itself in the ELF .init section.
*/
int elf_init (void)
{
__asm__ (".section .init \n call elf_init \n .section .text\n");
if(!init_some_function ())
{
exit (1);
}
printf ("\n elf_init() -- (.section .init)\n");
return 1;
}
/*
function definitions for constructX and destructX
*/
void construct1 () {
printf ("\n construct1() constructor -- (.section .ctors) priority 101\n");
}
void construct2 () {
printf ("\n construct2() constructor -- (.section .ctors) priority 102\n");
}
void destruct1 () {
printf ("\n destruct1() destructor -- (.section .dtors) priority 101\n\n");
}
void destruct2 () {
printf ("\n destruct2() destructor -- (.section .dtors) priority 102\n");
}
/* main makes no function call to any of the functions declared above
*/
int
main (int argc, char *argv[]) {
printf ("\n\t [ main body of program ]\n");
return 0;
}
output:
init_some_function() called by elf_init()
elf_init() -- (.section .init)
construct1() constructor -- (.section .ctors) priority 101
construct2() constructor -- (.section .ctors) priority 102
test() utilizing -- (.section .ctors/.dtors) w/o priority
test() utilizing -- (.section .ctors/.dtors) w/o priority
[ main body of program ]
test() utilizing -- (.section .ctors/.dtors) w/o priority
destruct2() destructor -- (.section .dtors) priority 102
destruct1() destructor -- (.section .dtors) priority 101
The example helped cement the constructor/destructor behavior, hopefully it will be useful to others as well.
Another possibility is using tidyr::expand
:
library(dplyr)
library(tidyr)
df %>% group_by_at(vars(-freq)) %>% expand(temp = 1:freq) %>% select(-temp)
#> # A tibble: 6 x 2
#> # Groups: var1, var2 [3]
#> var1 var2
#> <fct> <fct>
#> 1 a d
#> 2 b e
#> 3 b e
#> 4 c f
#> 5 c f
#> 6 c f
One-liner version of vonjd's answer:
library(data.table)
setDT(df)[ ,list(freq=rep(1,freq)),by=c("var1","var2")][ ,freq := NULL][]
#> var1 var2
#> 1: a d
#> 2: b e
#> 3: b e
#> 4: c f
#> 5: c f
#> 6: c f
Created on 2019-05-21 by the reprex package (v0.2.1)
Python's standard library has json
and urllib2
modules.
import json
import urllib2
data = json.load(urllib2.urlopen('http://someurl/path/to/json'))
Solution for Swift 2:
let singleTapGesture = UITapGestureRecognizer(target: self, action: #selector(handleSingleTap))
singleTapGesture.numberOfTapsRequired = 1 // Optional for single tap
view.addGestureRecognizer(singleTapGesture)
let doubleTapGesture = UITapGestureRecognizer(target: self, action: #selector(handleDoubleTap))
doubleTapGesture.numberOfTapsRequired = 2
view.addGestureRecognizer(doubleTapGesture)
singleTapGesture.requireGestureRecognizerToFail(doubleTapGesture)
Use win-node-env, For using it just run below command on your cmd
or power shell
or git bash
:
npm install -g win-node-env
After it everything is like Linux.
Here's an answer regarding the XML configuration, note that if you don't give the file appender a ConversionPattern
it will create 0 byte file and not write anything:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/">
<appender name="console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p %c{1} - %m%n"/>
</layout>
</appender>
<appender name="bdfile" class="org.apache.log4j.RollingFileAppender">
<param name="append" value="false"/>
<param name="maxFileSize" value="1GB"/>
<param name="maxBackupIndex" value="2"/>
<param name="file" value="/tmp/bd.log"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p %c{1} - %m%n"/>
</layout>
</appender>
<logger name="com.example.mypackage" additivity="false">
<level value="debug"/>
<appender-ref ref="bdfile"/>
</logger>
<root>
<priority value="info"/>
<appender-ref ref="bdfile"/>
<appender-ref ref="console"/>
</root>
</log4j:configuration>
Keep in mind that SQL strings can not be larger than 4000 bytes, while Pl/SQL can have strings as large as 32767 bytes. see below for an example of inserting a large string via an anonymous block which I believe will do everything you need it to do.
note I changed the varchar2(32000) to CLOB
set serveroutput ON
CREATE TABLE testclob
(
id NUMBER,
c CLOB,
d VARCHAR2(4000)
);
DECLARE
reallybigtextstring CLOB := '123';
i INT;
BEGIN
WHILE Length(reallybigtextstring) <= 60000 LOOP
reallybigtextstring := reallybigtextstring
|| '000000000000000000000000000000000';
END LOOP;
INSERT INTO testclob
(id,
c,
d)
VALUES (0,
reallybigtextstring,
'done');
dbms_output.Put_line('I have finished inputting your clob: '
|| Length(reallybigtextstring));
END;
/
SELECT *
FROM testclob;
"I have finished inputting your clob: 60030"
GitHub now has an import option that lets you choose whatever you want your new imported repository public or private
This:
STR_TO_DATE(t.datestring, '%d/%m/%Y')
...will convert the string into a datetime datatype. To be sure that it comes out in the format you desire, use DATE_FORMAT:
DATE_FORMAT(STR_TO_DATE(t.datestring, '%d/%m/%Y'), '%Y-%m-%d')
If you can't change the datatype on the original column, I suggest creating a view that uses the STR_TO_DATE
call to convert the string to a DateTime data type.