Initialize barbuttonItem like following:

let pauseButton = UIBarButtonItem(image: UIImage(named: "big"),
                                  style: .plain,
                                  target: self,
                                  action: #selector(PlaybackViewController.pause))

Swift 4.2

Change complete app theme

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.

        UINavigationBar.appearance().tintColor = .white

        return true
    }

Change specific controller

let navController = UINavigationController.init(rootViewController: yourViewController) 
navController.navigationBar.tintColor = .red

present(navController, animated: true, completion: nil)

I worked with xib and with UIToolbar. BarButtonItem was created in xib file. I created IBOutlet for BarButtonItem. And I used this code to hide my BarButtonItem

 self.myBarButtonItem.enabled = NO;
 self.myBarButtonItem.title =  nil;

this helped me.

If like me you're using a custom view instead of the UINavigationBar and you're stuck with the back button then you have to do a bit of work that feels a bit cludgey.

[self.navigationController.navigationBar setHidden:NO];
self.navigationController.navigationBar.topItem.title = @"";
[self.navigationController.navigationBar setHidden:YES];

It seems like if it doesn't get presented then no matter what it'll try show a title, this means it's shown then hidden before it's drawn and solves the problem.

Swift 5 & iOS 13+ Programmatic Example

1. You must mark your function with @objc, see below example!
2. No parenthesis following after the function name! Just use #selector(name).
3. private or public doesn't matter; you can use private.

Code Example

override func viewWillAppear(_ animated: Bool) {
    super.viewWillAppear(animated)
    
    let menuButtonImage = UIImage(systemName: "flame")
    let menuButton = UIBarButtonItem(image: menuButtonImage, style: .plain, target: self, action: #selector(didTapMenuButton))
    navigationItem.rightBarButtonItem = menuButton
}

@objc public func didTapMenuButton() {
    print("Hello World")
}

Inside my UIViewController derived class, I am using the following inside viewDidLoad:

UIBarButtonItem *flipButton = [[UIBarButtonItem alloc] 
                               initWithTitle:@"Flip"                                            
                               style:UIBarButtonItemStyleBordered 
                               target:self 
                               action:@selector(flipView:)];
self.navigationItem.rightBarButtonItem = flipButton;
[flipButton release];

This adds a button to the right hand side with the title Flip, which calls the method:

-(IBAction)flipView

This looks very much like you #3, but it is working within my code.

Swift Version:

(of https://stackoverflow.com/a/19132881/826435)

In your view controller you just conform to a protocol and perform whatever action you need:

extension MyViewController: NavigationControllerBackButtonDelegate {
    func shouldPopOnBackButtonPress() -> Bool {
        performSomeActionOnThePressOfABackButton()
        return false
    }
}

Then create a class, say NavigationController+BackButton, and just copy-paste the code below:

protocol NavigationControllerBackButtonDelegate {
    func shouldPopOnBackButtonPress() -> Bool
}

extension UINavigationController {
    public func navigationBar(_ navigationBar: UINavigationBar, shouldPop item: UINavigationItem) -> Bool {
        // Prevents from a synchronization issue of popping too many navigation items
        // and not enough view controllers or viceversa from unusual tapping
        if viewControllers.count < navigationBar.items!.count {
            return true
        }

        // Check if we have a view controller that wants to respond to being popped
        var shouldPop = true
        if let viewController = topViewController as? NavigationControllerBackButtonDelegate {
            shouldPop = viewController.shouldPopOnBackButtonPress()
        }

        if (shouldPop) {
            DispatchQueue.main.async {
                self.popViewController(animated: true)
            }
        } else {
            // Prevent the back button from staying in an disabled state
            for view in navigationBar.subviews {
                if view.alpha < 1.0 {
                    UIView.animate(withDuration: 0.25, animations: {
                        view.alpha = 1.0
                    })
                }
            }

        }

        return false
    }
}

This is a crazy thing of apple. When you say self.navigationItem.rightBarButtonItem.title then it will say nil while on the GUI it shows Edit or Save. Fresher likes me will take a lot of time to debug this behavior.

There is a requirement that the Item will show Edit in the firt load then user taps on it It will change to Save title. To archive this, i did as below.

//view did load will say Edit title

private func loadRightBarItem() {
    let logoutBarButtonItem = UIBarButtonItem(title: "Edit", style: .done, target: self, action: #selector(handleEditBtn))
    self.navigationItem.rightBarButtonItem  = logoutBarButtonItem
}

// tap Edit item will change to Save title

@objc private func handleEditBtn() {
    print("clicked on Edit btn")
    let logoutBarButtonItem = UIBarButtonItem(title: "Save", style: .done, target: self, action: #selector(handleSaveBtn))
    self.navigationItem.rightBarButtonItem  = logoutBarButtonItem
    blockEditTable(isBlock: false)
}

//tap Save item will display Edit title

@objc private func handleSaveBtn(){
    print("clicked on Save btn")
    let logoutBarButtonItem = UIBarButtonItem(title: "Edit", style: .done, target: self, action: #selector(handleEditBtn))
    self.navigationItem.rightBarButtonItem  = logoutBarButtonItem

    saveInvitation()
    blockEditTable(isBlock: true)

}

This happens because of one the following reasons:

1. You do not have the SDK API installed (this was my problem)
2. Your project/Android Studio doesn’t know where the needed files are
3. Your project references an outdated compile version that does not support AppCompatActivity
4. There is a typo

Possible solutions:

1. Check your .gradle file to make sure you’re not referencing an outdated version. AppCompatActivity was added in version 25.1.0 and belongs to Maven artifact com.android.support:appcompat-v7:28.0.0-alpha1, so do not use any version earlier than this. In your build.gradle (Module: app) file you should have the dependency listed:

   dependencies { compile 'com.android.support:appcompat-v7:25.1.0' }

   You may be using a different version, but just make sure you have listed the dependency.

2. Open the SDK manager and download every API 7 or newer. If you were missing the needed API it will fix that issue, and downloading all the newer API’s can save you some hassle later on as well.

3. Check for typos in your import statement. Make sure it doesn’t say “AppCompactActivity” instead of “AppCompatActivity”.
4. Resync your project (File >Sync project with Gradle files)
5. Rebuild your project (Build >rebuild)
6. Clean your project (Build >clean project)
7. Close and restart Android Studio
8. Update Android Studio
9. Regenerate your libraries folder – In Android Studio, view your files in project view. Find the folder YourProjectName >.idea >libraries. Rename the folder to “libraries_delete_me”. Close and reopen Android Studio. Open your project again and the libraries folder should be regenerated with all of the files; you can now delete the “libraries_delete_me” folder.

Dictionaries are specifically designed to do super fast key lookups. They are implemented as hashtables and the more entries the faster they are relative to other methods. Using the exception engine is only supposed to be done when your method has failed to do what you designed it to do because it is a large set of object that give you a lot of functionality for handling errors. I built an entire library class once with everything surrounded by try catch blocks once and was appalled to see the debug output which contained a seperate line for every single one of over 600 exceptions!

I faced the same issue and this is how I solved it:

1. The issue occurred to me because I installed virtualenv via pip as a regular user (not root). pip installed the packages into the directory ~/.local/lib/pythonX.X/site-packages
2. When I ran pip as root or with admin privileges (sudo), it installed packages in /usr/lib/pythonX.X/dist-packages. This path might be different for you.
3. virtualenv command gets recognized only in the second scenario
4. So, to solve the issue, do pip uninstall virtualenv and then reinstall it with sudo pip install virtualenv (or install as root)

In my case it was libjpeg. All I had to do was run brew reinstall libjpeg and everything just worked!

Simple Explanation by analogy

Imagine you are in a bank, trying to get some money out of your account. But it's dark; the bank is pitch black: there's no light and you can't see your hand in front of your face. You are surrounded by another 20 people. They all look the same. And everybody has the same voice. And everyone is a potential bad guy. In other words, HTTP is stateless.

This bank is a funny type of bank - for the sake of argument here's how things work:

1. you wait in line (or on-line) and you talk to the teller: you make a request to withdraw money, and then
2. you have to wait briefly on the sofa, and 20 minutes later
3. you have to go and actually collect your money from the teller.

But how will the teller tell you apart from everyone else?

The teller can't see or readily recognise you, remember, because the lights are all out. What if your teller gives your $10,000 withdrawal to someone else - the wrong person?! It's absolutely vital that the teller can recognise you as the one who made the withdrawal, so that you can get the money (or resource) that you asked for.

Solution:

When you first appear to the teller, he or she tells you something in secret:

"When ever you are talking to me," says the teller, "you should first identify yourlself as GNASHEU329 - that way I know it's you".

Nobody else knows the secret passcode.

Example of How I Withdrew Cash:

So I decide to go to and chill out for 20 minutes and then later i go to the teller and say "I'd like to collect my withdrawal"

The teller asks me: "who are you??!"

"It's me, Mr George Banks!"

"Prove it!"

And then I tell them my passcode: GNASHEU329

"Certainly Mr Banks!"

That basically is how a session works. It allows one to be uniquely identified in a sea of millions of people. You need to identify yourself every time you deal with the teller.

If you got any questions or are unclear - please post comment and i will try to clear it up for you. The following is not strictly speaking, completely accurate in its terminology, but I hope it's helpful to you in understanding concepts.

Explanation via Pictures:

Your compound PRIMARY KEY specification already does what you want. Omit the line that's giving you a syntax error, and omit the redundant CONSTRAINT (already implied), too:

 CREATE TABLE tags
      (
               question_id INTEGER NOT NULL,
               tag_id SERIAL NOT NULL,
               tag1 VARCHAR(20),
               tag2 VARCHAR(20),
               tag3 VARCHAR(20),
               PRIMARY KEY(question_id, tag_id)
      );

NOTICE:  CREATE TABLE will create implicit sequence "tags_tag_id_seq" for serial column "tags.tag_id"
    NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "tags_pkey" for table "tags"
    CREATE TABLE
    pg=> \d tags
                                         Table "public.tags"
       Column    |         Type          |                       Modifiers       
    -------------+-----------------------+-------------------------------------------------------
     question_id | integer               | not null
     tag_id      | integer               | not null default nextval('tags_tag_id_seq'::regclass)
     tag1        | character varying(20) |
     tag2        | character varying(20) |
     tag3        | character varying(20) |
    Indexes:
        "tags_pkey" PRIMARY KEY, btree (question_id, tag_id)

I had this problem as well but perhaps for a different reason. I had some trailing commas in my CSV that were adding an additional column that pandas was attempting to read. Using the following works but it simply ignores the bad lines:

data = pd.read_csv('file1.csv', error_bad_lines=False)

If you want to keep the lines an ugly kind of hack for handling the errors is to do something like the following:

line     = []
expected = []
saw      = []     
cont     = True 

while cont == True:     
    try:
        data = pd.read_csv('file1.csv',skiprows=line)
        cont = False
    except Exception as e:    
        errortype = e.message.split('.')[0].strip()                                
        if errortype == 'Error tokenizing data':                        
           cerror      = e.message.split(':')[1].strip().replace(',','')
           nums        = [n for n in cerror.split(' ') if str.isdigit(n)]
           expected.append(int(nums[0]))
           saw.append(int(nums[2]))
           line.append(int(nums[1])-1)
         else:
           cerror      = 'Unknown'
           print 'Unknown Error - 222'

if line != []:
    # Handle the errors however you want

I proceeded to write a script to reinsert the lines into the DataFrame since the bad lines will be given by the variable 'line' in the above code. This can all be avoided by simply using the csv reader. Hopefully the pandas developers can make it easier to deal with this situation in the future.

It's a shame that we need multiple ARG too, it results in multiple layers and slows down the build because of that, and for anyone also wondering that, currently there is no way to set multiple ARGs.

The -m switch of PuTTY takes a path to a script file as an argument, not a command.

Reference: https://the.earth.li/~sgtatham/putty/latest/htmldoc/Chapter3.html#using-cmdline-m

So you have to save your command (command_run) to a plain text file (e.g. c:\path\command.txt) and pass that to PuTTY:

putty.exe -ssh user@host -pw password -m c:\path\command.txt

Though note that you should use Plink (a command-line connection tool from PuTTY suite). It's a console application, so you can redirect its output to a file (what you cannot do with PuTTY).

A command-line syntax is identical, an output redirection added:

plink.exe -ssh user@host -pw password -m c:\path\command.txt > output.txt

See Using the command-line connection tool Plink.

And with Plink, you can actually provide the command directly on its command-line:

plink.exe -ssh user@host -pw password command > output.txt

Similar questions:
Automating running command on Linux from Windows using PuTTY
Executing command in Plink from a batch file

Query
// Select all data of model table
Model::all();
// Select all data of model table
Model::get();

Model::where('foo', '=', 'bar')->get();

Model::find(1);
Model::find([1, 2, 3]);
Model::findOrFail(1);

A HashSet has an internal structure (hash), where items can be searched and identified quickly. The downside is that iterating through a HashSet (or getting an item by index) is rather slow.

So why would someone want be able to know if an entry already exists in a set?

One situation where a HashSet is useful is in getting distinct values from a list where duplicates may exist. Once an item is added to the HashSet it is quick to determine if the item exists (Contains operator).

Other advantages of the HashSet are the Set operations: IntersectWith, IsSubsetOf, IsSupersetOf, Overlaps, SymmetricExceptWith, UnionWith.

If you are familiar with the object constraint language then you will identify these set operations. You will also see that it is one step closer to an implementation of executable UML.

I fixed an error like this changing the places of the routes in routes.php, for example i had something like this:

Route::resource('Mensajes', 'MensajeriaController');
Route::get('Mensajes/modificar', 'MensajeriaController@modificarEstado');

and then I put it like this:

Route::get('Mensajes/modificar', 'MensajeriaController@modificarEstado');
Route::resource('Mensajes', 'MensajeriaController');

I was getting similar exception but at class level

e.g. Caused by: java.lang.IllegalAccessError: tried to access class ....

I fixed this by making my class public.

Here's what I did. I wanted a HTML page setup on our network so I wouldn't have to navigate to various folders to install or upgrade our apps. So what I did was setup a .bat file on our "shared" drive that everyone has access to, in that .bat file I had this code:

start /d "\\server\Software\" setup.exe

The HTML code was:

<input type="button" value="Launch Installer" onclick="window.open('file:///S:Test/Test.bat')" />

(make sure your slashes are correct, I had them the other way and it didn't work)

I preferred to launch the EXE directly but that wasn't possible, but the .bat file allowed me around that. Wish it worked in FF or Chrome, but only IE.

None of these answers worked for me. I had to use the command line:

mysql -u root db_name < db_dump.sql
SET NAMES 'utf8';
SOURCE db_dump.sql;

Done!

.. I found the above solutions didn't work for me (on current versions of firefox and safari at least).

In my case I'm actually trying to do it with an img tag, not background-image, though it should also work for background-image if you use z-height:

<img  src='$url' style='position:absolute; top,left:0px; width,max-height:100%; border:0;' >

This scales the image to be 'fullscreen' (probably breaking the aspect ratio) which was what I wanted to do but had a hard-time finding.

It may also work for background-image though I gave up on trying that kind of solution after cover/contain didn't work for me.

I found contain behaviour didn't seem to match the documentation I could find anywhere - I understood the documentation to say contain should make the largest dimension get contained within the screen (maintained aspect). I found contain always made my image tiny (original image was large).

Contain was with some hacks closer to what I wanted than cover, which seems to be that the aspect is maintained but image is scaled to make the smallest-dimension match the screen - i.e. always make the image as big as it can until one of the dimensions would go offscreen...

I tried a bunch of different things, starting over included, but found height was essentially always ignored and would overflow. (I've been trying to scale a non-widescreen image to be fullscreen on both, broken-aspect is ok for me). Basically, the above is what worked for me, hope it helps someone.

There is a possibility also that you added another local repository with the same alias. As an example, you now have 2 local folders referred to as origin so when you try to push, the remote repository will not accept you credentials.

Rename the local repository aliases, you can follow this link https://stackoverflow.com/a/26651835/2270348

Maybe you can leave 1 local repository of your liking as origin and the others rename them for example from origin to anotherorigin. Remember these are just aliases and all you need to do is remember the new aliases and their respective remote branches.

Just had the same issue, for those having the same one it may be that you put the library on the modulepath rather than the classpath while adding it to your project

Use a variable and call clearInterval to stop it.

var interval;

$(document).on('ready',function()
  interval = setInterval(updateDiv,3000);
  });

  function updateDiv(){
    $.ajax({
      url: 'getContent.php',
      success: function(data){
        $('.square').html(data);
      },
      error: function(){
        $.playSound('oneday.wav');
        $('.square').html('<span style="color:red">Connection problems</span>');
        // I want to stop it here
        clearInterval(interval);
      }
    });
  }

The same may be achieved with the stringi package:

library('stringi')
char_array <- c("foo_bar","bar_foo","apple","beer")
a <- data.frame("data"=char_array, "data2"=1:4)
(a$data <- stri_sub(a$data, 1, -4)) # from the first to the last but 4th char
## [1] "foo_" "bar_" "ap"   "b" 

The easiest to use XML parser for Python is ElementTree (as of 2.5x and above it is in the standard library xml.etree.ElementTree). I don't think there is anything that does exactly what you want out of the box. It would be pretty trivial to write something to do what you want using ElementTree, but why convert to a dictionary, and why not just use ElementTree directly.

In my case I had the wrong case in

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

android.permission must be lowercase, and somehow the entire string was uppercase in our source.

It would be extremely difficult to guess the problem since it is due to a an error in the WSDL and without examining the WSDL, I cannot comment much more. So if you can share your WSDL, please do so.

All I can say is that there seems to be a missing schema in the WSDL (with the target namespace 'http://service.ebms.edi.cecid.hku.hk/'). I know about issues and different handling of the schema when include instructions are ignored.

Generally I have found Microsoft's implementation of web services pretty good so I think the web service is sending back dodgy WSDL.

public class ActiveAlarm implements Comparable<ActiveAlarm> {
    public long timeStarted;
    public long timeEnded;
    private String name = "";
    private String description = "";
    private String event;
    private boolean live = false;

    public int compareTo(ActiveAlarm a) {
        if ( this.timeStarted > a.timeStarted )
            return 1;
        else if ( this.timeStarted < a.timeStarted )
            return -1;
        else {
             if ( this.timeEnded > a.timeEnded )
                 return 1;
             else
                 return -1;
        }
 }

That should give you a rough idea. Once that's done, you can call Collections.sort() on the list.

Try this example:

exec DBMS_LOCK.sleep(5);

This is the whole script:

SELECT TO_CHAR (SYSDATE, 'MM-DD-YYYY HH24:MI:SS') "Start Date / Time" FROM DUAL;

exec DBMS_LOCK.sleep(5);

SELECT TO_CHAR (SYSDATE, 'MM-DD-YYYY HH24:MI:SS') "End Date / Time" FROM DUAL;

This is not possible from HTML on. The closest what you can get is the accept-charset attribute of the <form>. Only MSIE browser adheres that, but even then it is doing it wrong (e.g. CP1252 is actually been used when it says that it has sent ISO-8859-1). Other browsers are fully ignoring it and they are using the charset as specified in the Content-Type header of the response. Setting the character encoding right is basically fully the responsiblity of the server side. The client side should just send it back in the same charset as the server has sent the response in.

To the point, you should really configure the character encoding stuff entirely from the server side on. To overcome the inability to edit URIEncoding attribute, someone here on SO wrote a (complex) filter: Detect the URI encoding automatically in Tomcat. You may find it useful as well (note: I haven't tested it).

Update: Noted should be that the meta tag as given in your question is ignored when the content is been transferred over HTTP. Instead, the HTTP response Content-Type header will be used to determine the content type and character encoding. You can determine the HTTP header with for example Firebug, in the Net panel.

Here is a shorter version of the function presented above:

function getWidth() {
    if (self.innerWidth) {
       return self.innerWidth;
    }
    else if (document.documentElement && document.documentElement.clientHeight){
        return document.documentElement.clientWidth;
    }
    else if (document.body) {
        return document.body.clientWidth;
    }
    return 0;
}

This is how we can do it in Java 8 style using LocalDate:

LocalDate localDateStart = LocalDate.now().plusDays(5);
Date startDate = Date.from(localDateStart.atStartOfDay(ZoneId.systemDefault()).toInstant());

LocalDate localDateEnd = localDateStart.plusDays(1);
Date endDate = Date.from(localDateEnd.atStartOfDay(ZoneId.systemDefault()).toInstant());

        String input = "Welcome To The Java Programming";
        String output  = "";
        String[] cutAry = input.split("\\s+");
        StringBuilder sb = new StringBuilder();
        for(String s:cutAry){
            sb.append(s);
            output += sb.reverse().toString()+" ";
            sb.replace(0, sb.length(), "");
        }
        System.out.println(output);

If I understand you correctly, you want to compose a multipart request manually from an HTTP/REST console. The multipart format is simple; a brief introduction can be found in the HTML 4.01 spec. You need to come up with a boundary, which is a string not found in the content, let’s say HereGoes. You set request header Content-Type: multipart/form-data; boundary=HereGoes. Then this should be a valid request body:

--HereGoes
Content-Disposition: form-data; name="myJsonString"
Content-Type: application/json

{"foo": "bar"}
--HereGoes
Content-Disposition: form-data; name="photo"
Content-Type: image/jpeg
Content-Transfer-Encoding: base64

<...JPEG content in base64...>
--HereGoes--

New method in Django 3

you can use Field.choices Enumeration Types new update in django3 like this :

from django.db import models

class Status(models.TextChoices):
    UNPUBLISHED = 'UN', 'Unpublished'
    PUBLISHED = 'PB', 'Published'


class Book(models.Model):
    status = models.CharField(
        max_length=2,
        choices=Status.choices,
        default=Status.UNPUBLISHED,
    )

django docs

I'm probably a bit late to the party, but I wrote the junitcategorizer for my thesis project at TOPdesk. Earlier versions indeed used a company internal Parent POM. So your problems are caused by the Parent POM not being resolvable, since it is not available to the outside world.

You can either:

• Remove the <parent> block, but then have to configure the Surefire, Compiler and other plugins yourself
• (Only applicable to this specific case!) Change it to point to our Open Source Parent POM by setting:

<parent>
    <groupId>com.topdesk</groupId>
    <artifactId>open-source-parent</artifactId>
    <version>1.2.0</version>
</parent>

I don't see how if(!empty($var)) can create confusion, but I do agree that if ($var) is simpler. – vanneto Mar 8 '12 at 13:33

Because empty has the specific purpose of suppressing errors for nonexistent variables. You don't want to suppress errors unless you need to. The Definitive Guide To PHP's isset And empty explains the problem in detail. – deceze? Mar 9 '12 at 1:24

Focusing on the error suppression part, if the variable is an array where a key being accessed may or may not be defined:

1. if($web['status']) would produce:

   Notice: Undefined index: status

2. To access that key without triggering errors:
   1. if(isset($web['status']) && $web['status']) (2nd condition is not tested if the 1st one is FALSE) OR
   2. if(!empty($web['status'])).

However, as deceze? pointed out, a truthy value of a defined variable makes !empty redundant, but you still need to remember that PHP assumes the following examples as FALSE:

• null
• '' or ""
• 0.0
• 0
• '0' or "0"
• '0' + 0 + !3

So if zero is a meaningful status that you want to detect, you should actually use string and numeric comparisons:

3. Error free and zero detection:

   if(isset($web['status'])){
     if($web['status'] === '0' || $web['status'] === 0 ||
        $web['status'] === 0.0 || $web['status']) {
       // not empty: use the value
     } else {
       // consider it as empty, since status may be FALSE, null or an empty string
     }
   }
   

   The generic condition ($web['status']) should be left at the end of the entire statement.

SELECT
    t.A,
    t.B,
    t.C,
    ROW_NUMBER() OVER (ORDER BY (SELECT 1)) AS number
FROM tableZ AS t

See working example at SQLFiddle

Of course, you may want to define the row-numbering order – if so, just swap OVER (ORDER BY (SELECT 1)) for, e.g., OVER (ORDER BY t.C), like in a normal ORDER BY clause.

I have solved it with adding some key in info.plist. The steps I followed are:

1. Opened my Project target's info.plist file

2. Added a Key called NSAppTransportSecurity as a Dictionary.

3. Added a Subkey called NSAllowsArbitraryLoads as Boolean and set its value to YES as like following image.

Clean the Project and Now Everything is Running fine as like before.

Ref Link: https://stackoverflow.com/a/32609970

EDIT: OR In source code of info.plist file we can add that:

<key>NSAppTransportSecurity</key>
    <dict>
        <key>NSAllowsArbitraryLoads</key>
        <true/>
        <key>NSExceptionDomains</key>
        <dict>
            <key>yourdomain.com</key>
            <dict>
                <key>NSIncludesSubdomains</key>
                <true/>
                <key>NSThirdPartyExceptionRequiresForwardSecrecy</key>
                <false/>
            </dict>
       </dict>
  </dict>

Doctrine now has Criteria which offers a single API for filtering collections with SQL and in PHP, depending on the context.

https://www.doctrine-project.org/projects/doctrine-orm/en/latest/reference/working-with-associations.html#filtering-collections

Update

This will achieve the result in the accepted answer, without getting everything from the database.

use Doctrine\Common\Collections\Criteria;

/**
 * @ORM\Entity
 */
class Member {
  // ...
  public function getCommentsFiltered($ids) {
    $criteria = Criteria::create()->where(Criteria::expr()->in("id", $ids));

    return $this->getComments()->matching($criteria); 
  }
}

It is a bit of hack but will do the task.

Function equalsIgnoreCase(str1 As String, str2 As String) As Boolean
    equalsIgnoreCase = LCase(str1) = LCase(str2)
End Function

The CSS uses only the data in the DOM tree, which has little to do with how the renderer decides what to do with elements with missing attributes.

So either let the CSS reflect the HTML

input:not([type]), input[type="text"]
{
background:red;
}

or make the HTML explicit.

<input name='t1' type='text'/> /* Is Not Red */

If it didn't do that, you'd never be able to distinguish between

element { ...properties... }

and

element[attr] { ...properties... }

because all attributes would always be defined on all elements. (For example, table always has a border attribute, with 0 for a default.)

In your snippet, button is an instance of NodeList, to which you can't attach an event listener directly, nor can you change the elements' className properties directly.
Your best bet is to delegate the event:

document.body.addEventListener('mouseover',function(e)
{
    e = e || window.event;
    var target = e.target || e.srcElement;
    if (target.tagName.toLowerCase() === 'img' && target.className.match(/\bnavButton\b/))
    {
        target.className += ' active';//set class
    }
},false);

Of course, my guess is that the active class needs to be removed once the mouseout event fires, you might consider using a second delegator for that, but you could just aswell attach an event handler to the one element that has the active class:

document.body.addEventListener('mouseover',function(e)
{
    e = e || window.event;
    var oldSrc, target = e.target || e.srcElement;
    if (target.tagName.toLowerCase() === 'img' && target.className.match(/\bnavButton\b/))
    {
        target.className += ' active';//set class
        oldSrc = target.getAttribute('src');
        target.setAttribute('src', 'images/arrows/top_o.png');
        target.onmouseout = function()
        {
            target.onmouseout = null;//remove this event handler, we don't need it anymore
            target.className = target.className.replace(/\bactive\b/,'').trim();
            target.setAttribute('src', oldSrc);
        };
    }
},false);

There is some room for improvements, with this code, but I'm not going to have all the fun here ;-).

Check the fiddle here

I bashed my head on this for hours until I thought about checking my .bash_profile. I didn't have a path listed for python3 so I added the following code:

# Setting PATH for Python 3.6
# The original version is saved in .bash_profile.pysave
PATH="/Library/Frameworks/Python.framework/Versions/3.6/bin:${PATH}"
export PATH

And then re-installed matplotlib with sudo pip3 install matplotlib. All is working beautifully now.

pJosh, this might help understanding. In my case, my Team Provisioning Profile was expiring (the Provisioning Portal indicated it is managed by XCode), as well as the device testing profile for the app. (I still don't know why, but the portal had a "Renew" button next to the team profile, but it wouldn't do anything when I clicked it.)

So, I deleted the profiles about to expire, then in XCode go to Organizer (Command-Shift-2), under Library / Provisioning Profiles, I deleted the expiring ones. Then click "Refresh" at the bottom, enter my Apple ID, and it renewed the expiring ones.

Finally, on my Target, I went to Build Settings, Code Signing, and made sure to select the provisioning profile. Voila, now it builds to my device.

For bash and other Bourne-like shells:

java com.myserver.Program "$@"

Simply put, casting is more efficient than creating a Double object.

Edit: Warning! This answer worked on my XAMPP OsX environment, but when I deployed it to AWS EC2 it did NOT prevent the upload attempt.

I was tempted to delete this answer as it is WRONG But instead I will explain what tripped me up

My file upload field is named 'upload' so I was getting "The upload failed to upload.". This message comes from this line in validation.php:

in resources/lang/en/validaton.php:

'uploaded' => 'The :attribute failed to upload.',

And this is the message displayed when the file is larger than the limit set by PHP.

I want to over-ride this message, which you normally can do by passing a third parameter $messages array to Validator::make() method.

However I can't do that as I am calling the POST from a React Component, which renders the form containing the csrf field and the upload field.

So instead, as a super-dodgy-hack, I chose to get into my view that displays the messages and replace that specific message with my friendly 'file too large' message.

Here is what works if the file to smaller than the PHP file size limit:

In case anyone else is using Laravel FormRequest class, here is what worked for me on Laravel 5.7:

This is how I set a custom error message and maximum file size:

I have an input field <input type="file" name="upload">. Note the CSRF token is required also in the form (google laravel csrf_field for what this means).

<?php
namespace App\Http\Requests;
use Illuminate\Foundation\Http\FormRequest;
class Upload extends FormRequest
{
  ...
  ...
  public function rules() {
    return [
      'upload' => 'required|file|max:8192',
    ];
  }
  public function messages()
  {
    return [            
      'upload.required' => "You must use the 'Choose file' button to select which file you wish to upload",
      'upload.max' => "Maximum file size to upload is 8MB (8192 KB). If you are uploading a photo, try to reduce its resolution to make it under 8MB"
    ];
  }
}

window.onload = function() {
  var iDiv = document.createElement('div');
  iDiv.id = 'block';
  iDiv.className = 'block';
  document.body.appendChild(iDiv);

  var iiDiv = document.createElement('div');
  iiDiv.className = 'block-2';

  var s = document.getElementById('block');
  s.appendChild(iiDiv);
}

EOF is a special out-of-band signal which means the end of input. It's not a character (though in the old DOS days, 0x1B acted like EOF), but rather a signal from the OS that the input has ended.

On Windows, you can "input" an EOF by pressing Ctrl+Z at the command prompt. This signals the terminal to close the input stream, which presents an EOF to the running program. Note that on other OSes or terminal emulators, EOF is usually signalled using Ctrl+D.

As for your issue with Sublime Text 2, it seems that stdin is not connected to the terminal when running a program within Sublime, and so consequently programs start off connected to an empty file (probably nul or /dev/null). See also Python 3.1 and Sublime Text 2 error.

$(document).ready(function(){
    var response = '';
    $.ajax({ type: "GET",   
         url: "Records.php",   
         async: false,
         success : function(text)
         {
             response = text;
         }
    });

    alert(response);
});

needs to be:

$(document).ready(function(){

     $.ajax({ type: "GET",   
         url: "Records.php",   
         async: false,
         success : function(text)
         {
             alert(text);
         }
    });

});

The API docs give some good hints:

print() ? nil

print(obj, ...) ? nil

Writes the given object(s) to ios. Returns nil.

The stream must be opened for writing. Each given object that isn't a string will be converted by calling its to_s method. When called without arguments, prints the contents of $_.

If the output field separator ($,) is not nil, it is inserted between objects. If the output record separator ($\) is not nil, it is appended to the output.

...

puts(obj, ...) ? nil

Writes the given object(s) to ios. Writes a newline after any that do not already end with a newline sequence. Returns nil.

The stream must be opened for writing. If called with an array argument, writes each element on a new line. Each given object that isn't a string or array will be converted by calling its to_s method. If called without arguments, outputs a single newline.

Experimenting a little with the points given above, the differences seem to be:

• Called with multiple arguments, print separates them by the 'output field separator' $, (which defaults to nothing) while puts separates them by newlines. puts also puts a newline after the final argument, while print does not.

  2.1.3 :001 > print 'hello', 'world'
  helloworld => nil 
  2.1.3 :002 > puts 'hello', 'world'
  hello
  world
   => nil
  2.1.3 :003 > $, = 'fanodd'
   => "fanodd" 
  2.1.3 :004 > print 'hello', 'world'
  hellofanoddworld => nil 
  2.1.3 :005 > puts 'hello', 'world'
  hello
  world
   => nil

• puts automatically unpacks arrays, while print does not:

  2.1.3 :001 > print [1, [2, 3]], [4]
  [1, [2, 3]][4] => nil 
  2.1.3 :002 > puts [1, [2, 3]], [4]
  1
  2
  3
  4
   => nil

• print with no arguments prints $_ (the last thing read by gets), while puts prints a newline:

  2.1.3 :001 > gets
  hello world
   => "hello world\n" 
  2.1.3 :002 > puts
  
   => nil 
  2.1.3 :003 > print
  hello world
   => nil

• print writes the output record separator $\ after whatever it prints, while puts ignores this variable:

  mark@lunchbox:~$ irb
  2.1.3 :001 > $\ = 'MOOOOOOO!'
   => "MOOOOOOO!" 
  2.1.3 :002 > puts "Oink! Baa! Cluck! "
  Oink! Baa! Cluck! 
   => nil 
  2.1.3 :003 > print "Oink! Baa! Cluck! "
  Oink! Baa! Cluck! MOOOOOOO! => nil

Since router v4 I am using 'refs' for setting the parent active class:

<ul>
  <li>
    <NavLink
      innerRef={setParentAsActive}
      activeClassName="is-active"
      to={link}
    >
    {text}
  </NavLink>
</ul>

NavLink's innerRef prop accepts callback function, which will receive DOM node as an argument. You can use then any DOM manipulation possible, in this case simply set parent element (<li>) to have the same class:

  const setParentAsActive = node => {
    if (node) {
      node.parentNode.className = node.className;
    }
  };

Drawbacks:

• <a> will have unnecessary is-active class (as you only need it for <li>), or you can remove this class in the callback func.
• if you change the element structure, f.e. wrap a tag inside a span, your callback will stop working, but it's possible to write more sofisticated DOM traverse function
• you have to do some DOM manipulation

I'd just drop the database and then re-create it. On a UNIX or Linux system, that should do it:

$ dropdb development_db_name
$ createdb developmnent_db_name

That's how I do it, actually.

Checking Out Code

First go to an empty dir, use "git init" to make it a repository, then clone the remote repo into your own.

git clone [email protected]:/dir/to/repo

Wherever you initially clone from is where "git pull" will pull from by default.

Do whatever you want to do after the file loads successfully.just after the completion of your file processing set the value of file control to blank string.so the .change() will always be called even the file name changes or not. like for example you can do this thing and worked for me like charm

  $('#myFile').change(function () {
    LoadFile("myFile");//function to do processing of file.
    $('#myFile').val('');// set the value to empty of myfile control.
    });

Have you tried using :

git dif | grep -B <number of before lines to show> <regex>

In my case, i try to search where do i put a debug statement in the many files, i need to see which file already got this debug statement like this :

git diff | grep -B 5 dd\(

public Node reverseListRecursive(Node curr)
{
    if(curr == null){//Base case
        return head;
    }
    else{
        (reverseListRecursive(curr.next)).next = (curr);
    }
    return curr;
}

First, I mostly agree with beberlei on his suggestions. However, you may be designing yourself into a trap. Your domain appears to be considering the title to be the natural key for a track, which is likely the case for 99% of the scenarios you come across. However, what if Battery on Master of the Puppets is a different version (different length, live, acoustic, remix, remastered, etc) than the version on The Metallica Collection.

Depending on how you want to handle (or ignore) that case, you could either go beberlei's suggested route, or just go with your proposed extra logic in Album::getTracklist(). Personally, I think the extra logic is justified to keep your API clean, but both have their merit.

If you do wish to accommodate my use case, you could have Tracks contain a self referencing OneToMany to other Tracks, possibly $similarTracks. In this case, there would be two entities for the track Battery, one for The Metallica Collection and one for Master of the Puppets. Then each similar Track entity would contain a reference to each other. Also, that would get rid of the current AlbumTrackReference class and eliminate your current "issue". I do agree that it is just moving the complexity to a different point, but it is able to handle a usecase it wasn't previously able to.

Note that you can also use the C99 fixed-width types perfectly well in Objective-C:

#import <stdint.h>
...
int32_t x; // guaranteed to be 32 bits on any platform

The wikipedia page has a decent description of what's available in this header if you don't have a copy of the C standard (you should, though, since Objective-C is just a tiny extension of C). You may also find the headers limits.h and inttypes.h to be useful.

In your test, you are comparing the two TestParent beans, not the single TestedChild bean.

Also, Spring proxies your @Configuration class so that when you call one of the @Bean annotated methods, it caches the result and always returns the same object on future calls.

See here:

• How does Spring @Configuration cache references to beans

Bootstrap 5 has changed the ml,mr,pl,pr classes, which no longer work if you're upgrading from a lower version. The l and r have now been replaced with s(...which is confusing) and e(east?) respectively.

From bootstrap website:

Where property is one of:

• m - for classes that set margin
• p - for classes that set padding

Where sides is one of:

• t - for classes that set margin-top or padding-top
• b - for classes that set margin-bottom or padding-bottom
• s - for classes that set margin-left or padding-left in LTR, margin-right or padding-right in RTL
• e - for classes that set margin-right or padding-right in LTR, margin-left or padding-left in RTL
• x - for classes that set both *-left and *-right
• y - for classes that set both *-top and *-bottom blank - for classes that set a margin or padding on all 4 sides of the element Where size is one of:

0 - for classes that eliminate the margin or padding by setting it to 0 1 - (by default) for classes that set the margin or padding to $spacer * .25 2 - (by default) for classes that set the margin or padding to $spacer * .5 3 - (by default) for classes that set the margin or padding to $spacer 4 - (by default) for classes that set the margin or padding to $spacer * 1.5 5 - (by default) for classes that set the margin or padding to $spacer * 3 auto - for classes that set the margin to auto (You can add more sizes by adding entries to the $spacers Sass map variable.)

The more general answer to this question involves shadowed variables and how they are accessed.

In the following example (from Oracle), the variable x in main() is shadowing Test.x:

class Test {
    static int x = 1;
    public static void main(String[] args) {
        InnerClass innerClassInstance = new InnerClass()
        {
            public void printX()
            {
                System.out.print("x=" + x);
                System.out.println(", Test.this.x=" + Test.this.x);
            }
        }
        innerClassInstance.printX();
    }

    public abstract static class InnerClass
    {
        int x = 0;

        public InnerClass() { }

        public abstract void printX();
    }
}

Running this program will print:

x=0, Test.this.x=1

More at: http://docs.oracle.com/javase/specs/jls/se7/html/jls-6.html#jls-6.6

Intents are intense.

Intents are useful for passing data around the android framework. You can communicate with your own Activities and even other processes. Check the developer guide and if you have specific questions (it's a lot to digest up front) come back.

It also can be run by exporting the bash and sh of the gitbash C:\Program Files\git\bin\ in the Advance section of the environment variable of the Windows Server.

In Advance section in the path var kindly add the C:\Program Files\git\bin\ which will make the bash and the sh of the git-bash to be executable from the window cmd.

Then,

Run the shell file as

bash shellscript.sh or sh shellscript.sh

For visualization our group had some success with prefuse. We extended it to handle architectural floorplates and bubble diagraming, and it didn't complain too much. They have a new Flex toolkit out too called Flare that uses a very similar API.

UPDATE: I'd have to agree with the comment, we ended up writing a lot of custom functionality/working around prefuse limitations. I can't say that starting from scratch would have been better though as we were able to demonstrate progress from day 1 by using prefuse. On the other hand if we were doing a second implementation of the same stuff, I might skip prefuse since we'd understand the requirements a lot better.

First Program with comments

#include <stdio.h>

int main(){
    int *ptr;             //Create a pointer that points to random memory address

    *ptr = 20;            //Dereference that pointer, 
                          // and assign a value to random memory address.
                          //Depending on external (not inside your program) state
                          // this will either crash or SILENTLY CORRUPT another 
                          // data structure in your program.  

    printf("%d", *ptr);   //Print contents of same random memory address
                          // May or may not crash, depending on who owns this address

    return 0;             
}

Second Program with comments

#include <stdio.h>

int main(){
    int *ptr;              //Create pointer to random memory address

    int q = 50;            //Create local variable with contents int 50

    ptr = &q;              //Update address targeted by above created pointer to point
                           // to local variable your program properly created

    printf("%d", *ptr);    //Happily print the contents of said local variable (q)
    return 0;
}

The key is you cannot use a pointer until you know it is assigned to an address that you yourself have managed, either by pointing it at another variable you created or to the result of a malloc call.

Using it before is creating code that depends on uninitialized memory which will at best crash but at worst work sometimes, because the random memory address happens to be inside the memory space your program already owns. God help you if it overwrites a data structure you are using elsewhere in your program.

Yes, it will work fine as you have synchronized the list . I would suggest you to use CopyOnWriteArrayList.

CopyOnWriteArrayList<String> cpList=new CopyOnWriteArrayList<String>(new ArrayList<String>());

    void remove(String item)
    {
         do something; (doesn't work on the list)
                 cpList..remove(item);
    }

Delegate :- Create

@protocol addToCartDelegate <NSObject>

-(void)addToCartAction:(ItemsModel *)itemsModel isAdded:(BOOL)added;

@end

Send and please assign delegate to view you are sending data

[self.delegate addToCartAction:itemsModel isAdded:YES];

Convert your x-axis data from text to datetime.datetime, use datetime.strptime:

>>> from datetime import datetime
>>> datetime.strptime("2012-may-31 19:00", "%Y-%b-%d %H:%M")
 datetime.datetime(2012, 5, 31, 19, 0)

This is an example of how to plot data once you have an array of datetimes:

import matplotlib.pyplot as plt
import datetime
import numpy as np

x = np.array([datetime.datetime(2013, 9, 28, i, 0) for i in range(24)])
y = np.random.randint(100, size=x.shape)

plt.plot(x,y)
plt.show()

Awk approach:

awk '/pattern/{print; count++; if (count==10) exit}' file

Actually in later versions of pandas this will give a TypeError:

df.replace('-', None)
TypeError: If "to_replace" and "value" are both None then regex must be a mapping

You can do it by passing either a list or a dictionary:

In [11]: df.replace('-', df.replace(['-'], [None]) # or .replace('-', {0: None})
Out[11]:
      0
0  None
1     3
2     2
3     5
4     1
5    -5
6    -1
7  None
8     9

But I recommend using NaNs rather than None:

In [12]: df.replace('-', np.nan)
Out[12]:
     0
0  NaN
1    3
2    2
3    5
4    1
5   -5
6   -1
7  NaN
8    9

I had this problem with a a number of divs that were inserted in another div with position: absolute, the inserted divs had no position attribute. When I changed this to position:relative it worked fine. (was really hard to pinpoint the problem)

In my case the elements where inserted by Angular with ng-repeat.

For all who've opted for the if-else mesh solution, please use:

String columnName = metadata.getColumnName(
String displayName = metadata.getColumnLabel(i);
switch (metadata.getColumnType(i)) {
case Types.ARRAY:
    obj.put(displayName, resultSet.getArray(columnName));
    break;
...

Because in case of aliases in your query, the column name and column label are two different things. For example if you execute:

select col1, col2 as my_alias from table

You will get

[
    { "col1": 1, "col2": 2 }, 
    { "col1": 1, "col2": 2 }
]

Rather than:

[
    { "col1": 1, "my_alias": 2 }, 
    { "col1": 1, "my_alias": 2 }
]

A workaround - at least for the minimum size: You can use grid to manage the frames contained in root and make them follow the grid size by setting sticky='nsew'. Then you can use root.grid_rowconfigure and root.grid_columnconfigure to set values for minsize like so:

from tkinter import Frame, Tk

class MyApp():
    def __init__(self):
        self.root = Tk()

        self.my_frame_red = Frame(self.root, bg='red')
        self.my_frame_red.grid(row=0, column=0, sticky='nsew')

        self.my_frame_blue = Frame(self.root, bg='blue')
        self.my_frame_blue.grid(row=0, column=1, sticky='nsew')

        self.root.grid_rowconfigure(0, minsize=200, weight=1)
        self.root.grid_columnconfigure(0, minsize=200, weight=1)
        self.root.grid_columnconfigure(1, weight=1)

        self.root.mainloop()

if __name__ == '__main__':
    app = MyApp()

But as Brian wrote (in 2010 :D) you can still resize the window to be smaller than the frame if you don't limit its minsize.

If you are changing the hrefs, you can assign an id to the links <a href="#sample-tab-1" id="tab1"><span>One</span></a> so you can find the tab index by it's id.

For me the case was completely different. I had created a studio64.exe.vmoptions file in C:\Users\YourUserName\.AndroidStudio3.4\config. In that folder, I had a typo of extra spaces. Due to that I was getting the same error.

I replaced the studio64.exe.vmoptions with the following code.

# custom Android Studio VM options, see https://developer.android.com/studio/intro/studio-config.html

-server
-Xms1G
-Xmx8G
# I have 8GB RAM so it is 8G. Replace it with your RAM size.
-XX:MaxPermSize=1G
-XX:ReservedCodeCacheSize=512m
-XX:+UseCompressedOops
-XX:+UseConcMarkSweepGC
-XX:SoftRefLRUPolicyMSPerMB=50
-da
-Djna.nosys=true
-Djna.boot.library.path=

-Djna.debug_load=true
-Djna.debug_load.jna=true
-Dsun.io.useCanonCaches=false
-Djava.net.preferIPv4Stack=true
-XX:+HeapDumpOnOutOfMemoryError
-Didea.paths.selector=AndroidStudio2.1
-Didea.platform.prefix=AndroidStudio

If you need run code after 100% loaded with image and files, test this in mounted():

document.onreadystatechange = () => {
  if (document.readyState == "complete") {
    console.log('Page completed with image and files!')
    // fetch to next page or some code
  }
}

More info: MDN Api onreadystatechange

The /EXCLUDE: argument expects a file containing a list of excluded files.

So create a file called excludedfileslist.txt containing:

.cs\

Then a command like this:

xcopy /r /d /i /s /y /exclude:excludedfileslist.txt C:\dev\apan C:\web\apan

Alternatively you could use Robocopy, but would require installing / copying a robocopy.exe to the machines.

Update

An anonymous comment edit which simply stated "This Solution exclude also css file!"

This is true creating a excludedfileslist.txt file contain just:

.cs

(note no backslash on the end)

Will also exclude all of the following:

• file1.cs
• file2.css
• dir1.cs\file3.txt
• dir2\anyfile.cs.something.txt

Sometimes people don't read or understand the XCOPY command's help, here is an item I would like to highlight:

Using /exclude

• List each string in a separate line in each file. If any of the listed strings match any part of the absolute path of the file to be copied, that file is then excluded from the copying process. For example, if you specify the string "\Obj\", you exclude all files underneath the Obj directory. If you specify the string ".obj", you exclude all files with the .obj extension.

As the example states it excludes "all files with the .obj extension" but it doesn't state that it also excludes files or directories named file1.obj.tmp or dir.obj.output\example2.txt.

There is a way around .css files being excluded also, change the excludedfileslist.txt file to contain just:

.cs\

(note the backslash on the end).

Here is a complete test sequence for your reference:

C:\test1>ver

Microsoft Windows [Version 6.1.7601]

C:\test1>md src
C:\test1>md dst
C:\test1>md src\dir1
C:\test1>md src\dir2.cs
C:\test1>echo "file contents" > src\file1.cs
C:\test1>echo "file contents" > src\file2.css
C:\test1>echo "file contents" > src\dir1\file3.txt
C:\test1>echo "file contents" > src\dir1\file4.cs.txt
C:\test1>echo "file contents" > src\dir2.cs\file5.txt

C:\test1>xcopy /r /i /s /y .\src .\dst
.\src\file1.cs
.\src\file2.css
.\src\dir1\file3.txt
.\src\dir1\file4.cs.txt
.\src\dir2.cs\file5.txt
5 File(s) copied

C:\test1>echo .cs > excludedfileslist.txt
C:\test1>xcopy /r /i /s /y /exclude:excludedfileslist.txt .\src .\dst
.\src\dir1\file3.txt
1 File(s) copied

C:\test1>echo .cs\ > excludedfileslist.txt
C:\test1>xcopy /r /i /s /y /exclude:excludedfileslist.txt .\src .\dst
.\src\file2.css
.\src\dir1\file3.txt
.\src\dir1\file4.cs.txt
3 File(s) copied

This test was completed on a Windows 7 command line and retested on Windows 10 "10.0.14393".

Note that the last example does exclude .\src\dir2.cs\file5.txt which may or may not be unexpected for you.

If you mean cast a String to int, use Integer.valueOf("123").

You can't cast most other Objects to int though, because they wont have an int value. E.g. an XmlDocument has no int value.

student_user = User.objects.get(id=user_id)
available_subjects = Subject.objects.exclude(subject_grade__student__user=student_user) # My ans
enrolled_subjects = SubjectGrade.objects.filter(student__user=student_user)
context.update({'available_subjects': available_subjects, 'student_user': student_user, 
                'request':request, 'enrolled_subjects': enrolled_subjects})

In my application above, i assume that once a student is enrolled, a subject SubjectGrade instance will be created that contains the subject enrolled and the student himself/herself.

Subject and Student User model is a Foreign Key to the SubjectGrade Model.

In "available_subjects", i excluded all the subjects that are already enrolled by the current student_user by checking all subjectgrade instance that has "student" attribute as the current student_user

PS. Apologies in Advance if you can't still understand because of my explanation. This is the best explanation i Can Provide. Thank you so much

Great & best solution from @leviathan. Just translating to swift using FP (functional programming) approach.

self.scrollView.contentSize = self.scrollView.subviews.reduce(CGRect(), { 
  CGRectUnion($0, $1.frame) 
}.size

Besides the removal of the github messaging service, usage was often not necessary due to many githubbers communicating with- and advocating twitter.

The advantage is that there is:

• full transparency
• better coverage
• better search features for tweets
• better archiving, for instance by the US Library of Congress

It is probably no coincidence that stackoverflow doesn't allow private messaging either, to ensure full transparency. The entire messaging issue is thoroughly discussed on meta-stackoverflow here.

I assume you want to pass the Order ID in. So:

CREATE PROCEDURE [dbo].[Procedure_Name]
(
    @OrderID INT
) AS
BEGIN
    Declare @OrderItemID AS INT
    DECLARE @AppointmentID AS INT
    DECLARE @PurchaseOrderID AS INT
    DECLARE @PurchaseOrderItemID AS INT
    DECLARE @SalesOrderID AS INT
    DECLARE @SalesOrderItemID AS INT

    SET @OrderItemID = (SELECT OrderItemID FROM [OrderItem] WHERE OrderID = @OrderID)
    SET @AppointmentID = (SELECT AppoinmentID FROM [Appointment] WHERE OrderID = @OrderID)
    SET @PurchaseOrderID = (SELECT PurchaseOrderID FROM [PurchaseOrder] WHERE OrderID = @OrderID)
END

Avoid the Date object creation w/ System.currentTimeMillis(). A divide by 1000 gets you to Unix epoch.

As mentioned in a comment, you typically want a primitive long (lower-case-l long) not a boxed object long (capital-L Long) for the unixTime variable's type.

long unixTime = System.currentTimeMillis() / 1000L;

You may find that you have to link with the math libraries on whatever system you're using, something like:

gcc -o myprog myprog.c -L/path/to/libs -lm
                                       ^^^ - this bit here.

Including headers lets a compiler know about function declarations but it does not necessarily automatically link to the code required to perform that function.

Failing that, you'll need to show us your code, your compile command and the platform you're running on (operating system, compiler, etc).

The following code compiles and links fine:

#include <math.h>
int main (void) {
    int max = sqrt (9);
    return 0;
}

Just be aware that some compilation systems depend on the order in which libraries are given on the command line. By that, I mean they may process the libraries in sequence and only use them to satisfy unresolved symbols at that point in the sequence.

So, for example, given the commands:

gcc -o plugh plugh.o -lxyzzy
gcc -o plugh -lxyzzy plugh.o

and plugh.o requires something from the xyzzy library, the second may not work as you expect. At the point where you list the library, there are no unresolved symbols to satisfy.

And when the unresolved symbols from plugh.o do appear, it's too late.

Try putting this in your app/web.config:

<system.net>
    <settings>
        <httpWebRequest useUnsafeHeaderParsing="true" />
    </settings>
</system.net>

If this doesn't work you may also try setting the KeepAlive property to false.

The following command will clear only non-rooted buffers (main, system ..etc).

adb logcat -c

If you want to clear all the buffers (like radio, kernel..etc), Please use the following commands

adb root
adb logcat -b all -c

or

adb root
adb shell logcat -b all -c 

Use the following commands to know the list of buffers that device supports

adb logcat -g
adb logcat -b all -g
adb shell logcat -b all -g

This question has been asked and answered many times:

Read file from serial port using Java

Reading serial port in Java

Reading file from serial port in Java

Is there Java library or framework for accessing Serial ports?

Java Serial Communication on Windows

to reference a few.

Personally I recommend SerialPort from http://serialio.com - it's not free, but it's well worth the developer (no royalties) licensing fee for any commercial project. Sadly, it is no longer royalty free to deploy, and SerialIO.com seems to have remade themselves as a hardware seller; I had to search for information on SerialPort.

From personal experience, I strongly recommend against the Sun, IBM and RxTx implementations, all of which were unstable in 24/7 use. Refer to my answers on some of the aforementioned questions for details. To be perfectly fair, RxTx may have come a long way since I tried it, though the Sun and IBM implementations were essentially abandoned, even back then.

A newer free option that looks promising and may be worth trying is jSSC (Java Simple Serial Connector), as suggested by @Jodes comment.

To disable Screen Capture:

Add following line of code in onCreate() method:

getWindow().setFlags(WindowManager.LayoutParams.FLAG_SECURE,
                           WindowManager.LayoutParams.FLAG_SECURE);

To enable Screen Capture:

Find for LayoutParams.FLAG_SECURE and remove the line of code.

You can't use an aggregate directly in a WHERE clause; that's what HAVING clauses are for.

You can use a sub-query which contains an aggregate in the WHERE clause.

The error "Directory 'blah/.svn' containing working copy admin area is missing" occurred when I attempted to add the directory to the repository, but did not have enough filesystem privileges to do so. The directory was not already in the repository, but it was claiming to be under version control after the failed add.

Checking out a copy of the parent directory to another location, and replacing the .svn folder in the parent dir of the working copy allowed me to add and commit the new directory successfully (after fixing the file permissions, of course).

public static byte[] hexToBytes(String string) {
 int length = string.length();
 byte[] data = new byte[length / 2];
 for (int i = 0; i < length; i += 2) {
  data[i / 2] = (byte)((Character.digit(string.charAt(i), 16) << 4) + Character.digit(string.charAt(i + 1), 16));
 }
 return data;
}

Use clear: both;

I spent over a week trying to figure this out!

you can also import the FunctionType from types and test it with the class.__dict__:

from types import FunctionType

class Foo:
    def bar(self): pass
    def baz(self): pass

def methods(cls):
    return [x for x, y in cls.__dict__.items() if type(y) == FunctionType]

methods(Foo)  # ['bar', 'baz']

You can use $pdf->GetX() and $pdf->GetY() to get current cooridnates and use them to insert image.

$pdf->Image($image1, 5, $pdf->GetY(), 33.78);

or even

$pdf->Image($image1, 5, null, 33.78);

(ALthough in first case you can add a number to create a bit of a space)

$pdf->Image($image1, 5, $pdf->GetY() + 5, 33.78);

You can readily do this this with the input format U.u.

$now = DateTime::createFromFormat('U.u', microtime(true));
echo $now->format("m-d-Y H:i:s.u");

This produces the following output:

04-13-2015 05:56:22.082300

From the PHP manual page for date formats:

• U = Seconds since the Unix Epoch
• u = Microseconds

http://php.net/manual/en/function.date.php

Thanks goes to giggsey for pointing out a flaw in my original answer, adding number_format() to the line should fix the case of the exact second. Too bad it doesn't feel quite as elegant any more...

$now = DateTime::createFromFormat('U.u', number_format(microtime(true), 6, '.', ''));

http://php.net/manual/en/function.number-format.php

A note on time zones in response to DaVe.

Normally the createFromFormat() method will use the local time zone if one is not specified.

http://php.net/manual/en/datetime.createfromformat.php

However, the technique described here is initialising the DateTime object using microtime() which returns the number of seconds elapsed since the Unix Epoch (01 Jan 1970 00:00:00 GMT).

http://php.net/manual/en/function.microtime.php

This means that the DateTime object is implicitly initialised to UTC, which is fine for server internal tasks that just want to track elapsed time.

If you need to display the time for a particular time zone then you need to set it accordingly. However, this should be done as a separate step after the initialisation (not using the third parameter of createFromFormat()) because of the reasons discussed above.

The setTimeZone() method can be used to accomplish this requirement.

http://php.net/manual/en/datetime.settimezone.php

As an example:

$now = DateTime::createFromFormat('U.u', number_format(microtime(true), 6, '.', ''));
echo $now->format("m-d-Y H:i:s.u") . '<br>';

$local = $now->setTimeZone(new DateTimeZone('Australia/Canberra'));
echo $local->format("m-d-Y H:i:s.u") . '<br>';

Produces the following output:

10-29-2015 00:40:09.433818
10-29-2015 11:40:09.433818

Note that if you want to input into mysql, the time format needs to be:

format("Y-m-d H:i:s.u")

VM Player runs a virtual instance, but can't create the vm. [Edit: Now it can.] Workstation allows for the creation and administration of virtual machines. If you have a second machine, you can create the vm on one and run it with the player the other machine. I bought Workstation and I use it setup testing vms that the player runs. Hope this explains it for you.

Edit: According to the FAQ:

VMware Workstation is much more advanced and comes with powerful features including snapshots, cloning, remote connections to vSphere, sharing VMs, advanced Virtual Machines settings and much more. Workstation is designed to be used by technical professionals such as developers, quality assurance engineers, systems engineers, IT administrators, technical support representatives, trainers, etc.

I don't think you can turn JavaScript objects into JSON strings using only jQuery, assuming you need the JSON string as output.

Depending on the browsers you are targeting, you can use the JSON.stringify function to produce JSON strings.

See http://www.json.org/js.html for more information, there you can also find a JSON parser for older browsers that don't support the JSON object natively.

In your case:

var array = [];
$("input[class=email]").each(function() {
    array.push({
        title: $(this).attr("title"),
        email: $(this).val()
    });
});
// then to get the JSON string
var jsonString = JSON.stringify(array);

Newer kernels (e.g. the latest Ubuntu kernels) come with the new 'perf' tools (apt-get install linux-tools) AKA perf_events.

These come with classic sampling profilers (man-page) as well as the awesome timechart!

The important thing is that these tools can be system profiling and not just process profiling - they can show the interaction between threads, processes and the kernel and let you understand the scheduling and I/O dependencies between processes.

$(this).css('background-color', 'red');

http://msdn.microsoft.com/en-us/library/system.net.sockets.socket.remoteendpoint.aspx

You can then call the IPEndPoint..::.Address method to retrieve the remote IPAddress, and the IPEndPoint..::.Port method to retrieve the remote port number.

More from the link (fixed up alot heh):

Socket s;

IPEndPoint remoteIpEndPoint = s.RemoteEndPoint as IPEndPoint;
IPEndPoint localIpEndPoint = s.LocalEndPoint as IPEndPoint;

if (remoteIpEndPoint != null)
{
    // Using the RemoteEndPoint property.
    Console.WriteLine("I am connected to " + remoteIpEndPoint.Address + "on port number " + remoteIpEndPoint.Port);
}

if (localIpEndPoint != null)
{
    // Using the LocalEndPoint property.
    Console.WriteLine("My local IpAddress is :" + localIpEndPoint.Address + "I am connected on port number " + localIpEndPoint.Port);
}

It's just JSON? You can stringify() JSON:

var obj = {
    cons: [[String, 'some', 'somemore']],
    func: function(param, param2){
        param2.some = 'bla';
    }
};

var text = JSON.stringify(obj);

And parse back to JSON again with parse():

var myVar = JSON.parse(text);

If you have functions in the object, use this to serialize:

function objToString(obj, ndeep) {
  switch(typeof obj){
    case "string": return '"'+obj+'"';
    case "function": return obj.name || obj.toString();
    case "object":
      var indent = Array(ndeep||1).join('\t'), isArray = Array.isArray(obj);
      return ('{['[+isArray] + Object.keys(obj).map(function(key){
           return '\n\t' + indent +(isArray?'': key + ': ' )+ objToString(obj[key], (ndeep||1)+1);
         }).join(',') + '\n' + indent + '}]'[+isArray]).replace(/[\s\t\n]+(?=(?:[^\'"]*[\'"][^\'"]*[\'"])*[^\'"]*$)/g,'');
    default: return obj.toString();
  }
}

Examples:

Serialize:

var text = objToString(obj); //To Serialize Object

Result:

"{cons:[[String,"some","somemore"]],func:function(param,param2){param2.some='bla';}}"

Deserialize:

Var myObj = eval('('+text+')');//To UnSerialize 

Result:

Object {cons: Array[1], func: function, spoof: function}

My full example is here, but I will provide a summary below.

Layout

Add a .swift and .xib file each with the same name to your project. The .xib file contains your custom view layout (using auto layout constraints preferably).

Make the swift file the xib file's owner.

Code

Add the following code to the .swift file and hook up the outlets and actions from the .xib file.

import UIKit
class ResuableCustomView: UIView {

    let nibName = "ReusableCustomView"
    var contentView: UIView?

    @IBOutlet weak var label: UILabel!
    @IBAction func buttonTap(_ sender: UIButton) {
        label.text = "Hi"
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        guard let view = loadViewFromNib() else { return }
        view.frame = self.bounds
        self.addSubview(view)
        contentView = view
    }

    func loadViewFromNib() -> UIView? {
        let bundle = Bundle(for: type(of: self))
        let nib = UINib(nibName: nibName, bundle: bundle)
        return nib.instantiate(withOwner: self, options: nil).first as? UIView
    }
}

Use it

Use your custom view anywhere in your storyboard. Just add a UIView and set the class name to your custom class name.

For a while Christopher Swasey's approach was the best approach I had found. I asked a couple of the senior devs on my team about it and one of them had the perfect solution! It satisfies every one of the concerns that Christopher Swasey so eloquently addressed and it doesn't require boilerplate subclass code(my main concern with his approach). There is one gotcha, but other than that it is fairly intuitive and easy to implement.

1. Create a custom UIView class in a .swift file to control your xib. i.e. MyCustomClass.swift
2. Create a .xib file and style it as you want. i.e. MyCustomClass.xib
3. Set the File's Owner of the .xib file to be your custom class (MyCustomClass)
4. GOTCHA: leave the class value (under the identity Inspector) for your custom view in the .xib file blank. So your custom view will have no specified class, but it will have a specified File's Owner.
5. Hook up your outlets as you normally would using the Assistant Editor.
   • NOTE: If you look at the Connections Inspector you will notice that your Referencing Outlets do not reference your custom class (i.e. MyCustomClass), but rather reference File's Owner. Since File's Owner is specified to be your custom class, the outlets will hook up and work propery.
6. Make sure your custom class has @IBDesignable before the class statement.
7. Make your custom class conform to the NibLoadable protocol referenced below.
   • NOTE: If your custom class .swift file name is different from your .xib file name, then set the nibName property to be the name of your .xib file.
8. Implement required init?(coder aDecoder: NSCoder) and override init(frame: CGRect) to call setupFromNib() like the example below.
9. Add a UIView to your desired storyboard and set the class to be your custom class name (i.e. MyCustomClass).
10. Watch IBDesignable in action as it draws your .xib in the storyboard with all of it's awe and wonder.

Here is the protocol you will want to reference:

public protocol NibLoadable {
    static var nibName: String { get }
}

public extension NibLoadable where Self: UIView {

    public static var nibName: String {
        return String(describing: Self.self) // defaults to the name of the class implementing this protocol.
    }

    public static var nib: UINib {
        let bundle = Bundle(for: Self.self)
        return UINib(nibName: Self.nibName, bundle: bundle)
    }

    func setupFromNib() {
        guard let view = Self.nib.instantiate(withOwner: self, options: nil).first as? UIView else { fatalError("Error loading \(self) from nib") }
        addSubview(view)
        view.translatesAutoresizingMaskIntoConstraints = false
        view.leadingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.leadingAnchor, constant: 0).isActive = true
        view.topAnchor.constraint(equalTo: self.safeAreaLayoutGuide.topAnchor, constant: 0).isActive = true
        view.trailingAnchor.constraint(equalTo: self.safeAreaLayoutGuide.trailingAnchor, constant: 0).isActive = true
        view.bottomAnchor.constraint(equalTo: self.safeAreaLayoutGuide.bottomAnchor, constant: 0).isActive = true
    }
}

And here is an example of MyCustomClass that implements the protocol (with the .xib file being named MyCustomClass.xib):

@IBDesignable
class MyCustomClass: UIView, NibLoadable {

    @IBOutlet weak var myLabel: UILabel!

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setupFromNib()
    }

    override init(frame: CGRect) {
        super.init(frame: frame)
        setupFromNib()
    }

}

NOTE: If you miss the Gotcha and set the class value inside your .xib file to be your custom class, then it will not draw in the storyboard and you will get a EXC_BAD_ACCESS error when you run the app because it gets stuck in an infinite loop of trying to initialize the class from the nib using the init?(coder aDecoder: NSCoder) method which then calls Self.nib.instantiate and calls the init again.

This is the Kotlin version of the function posted by VVB. I used it in the ListView Adapter to implement the "go to next row first EditText when Enter key is pressed on the last EditText of current row" feature in the getView().

In the ListViewAdapter class, fun getView(), add lastEditText.setOnKeyListner as below:

lastEditText.setOnKeyListener { v, keyCode, event ->
    var setOnKeyListener = false
    if (keyCode == KeyEvent.KEYCODE_ENTER && event.action == KeyEvent.ACTION_UP) {
        try {
            val nextRow = getViewByPosition(position + 1, parent as ListView) as LinearLayout
            val nextET = nextRow.findViewById(R.id.firstEditText) as EditText
            nextET.isFocusableInTouchMode = true
            nextET.requestFocus()
        } catch (e: Exception) {
            // do nothing
        }
        setOnKeyListener = true
    }
    setOnKeyListener
}

add the fun getViewByPosition() after fun getView() as below:

private fun getViewByPosition(pos: Int, listView: ListView): View? {
    val firstListItemPosition: Int = listView.firstVisiblePosition
    val lastListItemPosition: Int = firstListItemPosition + listView.childCount - 1
    return if (pos < firstListItemPosition || pos > lastListItemPosition) {
        listView.adapter.getView(pos, null, listView)
    } else {
        val childIndex = pos + listView.headerViewsCount - firstListItemPosition
        listView.getChildAt(childIndex)
    }
}

The problem with all these is they don't address if the lines of text are long and much wider that the div overflow:auto does not ad a scroll bar that works right. Here is the perfect solution I found:

Create two divs. An inner div that is wide enough to handle the widest line of text and then a smaller outer one which acts at the holder for the inner div:

<div style="border:2px inset #AAA;cursor:text;height:120px;overflow:auto;width:500px;">
    <div style="width:800px;">

     now really long text like this can be put in the text area and it will really <br/>
     look and act more like a real text area bla bla bla <br/>

    </div>
</div>

Mac already has Python and a package manager called easy_install, so open Terminal and type

sudo easy_install selenium

As I could understand the question is not about how pass a string with control symbols using json but how to store and restore json in file where you can split a string with editor control symbols.

If you want to store multiline string in a file then your file will not store the valid json object. But if you use your json files in your program only, then you can store the data as you wanted and remove all newlines from file manually each time you load it to your program and then pass to json parser.

Or, alternatively, which would be better, you can have your json data source files where you edit a sting as you want and then remove all new lines with some utility to the valid json file which your program will use.

HashSet is a set, e.g. {1,2,3,4,5}

HashMap is a key -> value (key to value) map, e.g. {a -> 1, b -> 2, c -> 2, d -> 1}

Notice in my example above that in the HashMap there must not be duplicate keys, but it may have duplicate values.

In the HashSet, there must be no duplicate elements.

The Statement gives you the following option:

Statement stmt = con.createStatement();

stmt.addBatch("INSERT INTO employees VALUES (1000, 'Joe Jones')");
stmt.addBatch("INSERT INTO departments VALUES (260, 'Shoe')");
stmt.addBatch("INSERT INTO emp_dept VALUES (1000, 260)");

// submit a batch of update commands for execution
int[] updateCounts = stmt.executeBatch();

$(function() {
    $('.mega-dropdown').on('hide.bs.dropdown', function(e) {
        var $target = $(e.target);
        return !($target.hasClass("keep-open") || $target.parents(".keep-open").size() > 0);
    });

    $('.mega-dropdown > ul.dropdown-menu').on('mouseenter', function() {
        $(this).parent('li').addClass('keep-open')
    }).on('mouseleave', function() {
        $(this).parent('li').removeClass('keep-open')
    });
});

The concept of NULL is questionable, to say the least. Codd introduced the relational model and the concept of NULL in context (and went on to propose more than one kind of NULL!) However, relational theory has evolved since Codd's original writings: some of his proposals have since been dropped (e.g. primary key) and others never caught on (e.g. theta operators). In modern relational theory (truly relational theory, I should stress) NULL simply does not exist. See The Third Manifesto. http://www.thethirdmanifesto.com/

The SQL language suffers the problem of backwards compatibility. NULL found its way into SQL and we are stuck with it. Arguably, the implementation of NULL in SQL is flawed (SQL Server's implementation makes things even more complicated due to its ANSI_NULLS option).

I recommend avoiding the use of NULLable columns in base tables.

Although perhaps I shouldn't be tempted, I just wanted to assert a corrections of my own about how NULL works in SQL:

NULL = NULL evaluates to UNKNOWN.

UNKNOWN is a logical value.

NULL is a data value.

This is easy to prove e.g.

SELECT NULL = NULL

correctly generates an error in SQL Server. If the result was a data value then we would expect to see NULL, as some answers here (wrongly) suggest we would.

The logical value UNKNOWN is treated differently in SQL DML and SQL DDL respectively.

In SQL DML, UNKNOWN causes rows to be removed from the resultset.

For example:

CREATE TABLE MyTable
(
 key_col INTEGER NOT NULL UNIQUE, 
 data_col INTEGER
 CHECK (data_col = 55)
);

INSERT INTO MyTable (key_col, data_col)
   VALUES (1, NULL);

The INSERT succeeds for this row, even though the CHECK condition resolves to NULL = NULL. This is due defined in the SQL-92 ("ANSI") Standard:

11.6 table constraint definition

3)

If the table constraint is a check constraint definition, then let SC be the search condition immediately contained in the check constraint definition and let T be the table name included in the corresponding table constraint descriptor; the table constraint is not satisfied if and only if

EXISTS ( SELECT * FROM T WHERE NOT ( SC ) )

is true.

Read that again carefully, following the logic.

In plain English, our new row above is given the 'benefit of the doubt' about being UNKNOWN and allowed to pass.

In SQL DML, the rule for the WHERE clause is much easier to follow:

The search condition is applied to each row of T. The result of the where clause is a table of those rows of T for which the result of the search condition is true.

In plain English, rows that evaluate to UNKNOWN are removed from the resultset.

If you not only want to get all direct children but all children's children and so on, you have to do it recursively:

private ArrayList<View> getAllChildren(View v) {

    if (!(v instanceof ViewGroup)) {
        ArrayList<View> viewArrayList = new ArrayList<View>();
        viewArrayList.add(v);
        return viewArrayList;
    }

    ArrayList<View> result = new ArrayList<View>();

    ViewGroup vg = (ViewGroup) v;
    for (int i = 0; i < vg.getChildCount(); i++) {

        View child = vg.getChildAt(i);

        ArrayList<View> viewArrayList = new ArrayList<View>();
        viewArrayList.add(v);
        viewArrayList.addAll(getAllChildren(child));

        result.addAll(viewArrayList);
    }
    return result;
}

To use the result you could do something like this:

    // check if a child is set to a specific String
    View myTopView;
    String toSearchFor = "Search me";
    boolean found = false;
    ArrayList<View> allViewsWithinMyTopView = getAllChildren(myTopView);
    for (View child : allViewsWithinMyTopView) {
        if (child instanceof TextView) {
            TextView childTextView = (TextView) child;
            if (TextUtils.equals(childTextView.getText().toString(), toSearchFor)) {
                found = true;
            }
        }
    }
    if (!found) {
        fail("Text '" + toSearchFor + "' not found within TopView");
    }

Works fine for me

See example here. http://jsfiddle.net/blowsie/c6VAy/

Make sure your jquery is inside $(document).ready function or similar.

Also you can improve your code by using jquery data

$('#amount').data('min','1000');

<div id="amount" data-min=""></div>

Update,

A working example of your full code (pretty much) here. http://jsfiddle.net/blowsie/c6VAy/3/

Start by defining some test cases, then you will see that the function is very simple and needs no loops

from datetime import datetime

def diff_month(d1, d2):
    return (d1.year - d2.year) * 12 + d1.month - d2.month

assert diff_month(datetime(2010,10,1), datetime(2010,9,1)) == 1
assert diff_month(datetime(2010,10,1), datetime(2009,10,1)) == 12
assert diff_month(datetime(2010,10,1), datetime(2009,11,1)) == 11
assert diff_month(datetime(2010,10,1), datetime(2009,8,1)) == 14

You should add some test cases to your question, as there are lots of potential corner cases to cover - there is more than one way to define the number of months between two dates.

Use the dos2unix command in linux to convert the saved file. example :

dos2unix file_name

you might consider using the Relative and Absolute positining.

`.container {  
position: relative;  
}  
.tag {     
position: absolute;   
}`  

I have tested it there, also if you want it to change its position use this as its margin:

top: 20px;
left: 10px;

It will place it 20 pixels from top and 10 pixels from left; but leave this one if not necessary.

On the model set $incrementing to false

public $incrementing = false;

This will stop it from thinking it is an auto increment field.

Laravel Docs - Eloquent - Defining Models

Non-trivial reasons:

• if your .htaccess is in DOS format, change it to UNIX format (in Notepad++, click Edit>Convert )
• if your .htaccess is in UTF8 Without-BOM, make it WITH BOM.

I think you have to make some required configuration to start and run IE properly. You can find the guide at: https://github.com/SeleniumHQ/selenium/wiki/InternetExplorerDriver

The latest solution for passing data between fragments can be implemented by using android architectural components such as ViewModel and LiveData. With this solution, you don't need to define interface for communication and can get the advantages of using viewmodel like data survival due to configuration changes.

In this solution, the fragments involved in the communication share the same viewmodel object which is tied to their activity lifecycle. The view model object contains livedata object. One fragment sets data to be passed on livedata object and second fragment observers livedata changes and received the data.

Here is the complete example http://www.zoftino.com/passing-data-between-android-fragments-using-viewmodel

With a signal handler.

Here is a simple example flipping a bool used in main():

#include <signal.h>

static volatile int keepRunning = 1;

void intHandler(int dummy) {
    keepRunning = 0;
}

// ...

int main(void) {

   signal(SIGINT, intHandler);

   while (keepRunning) { 
      // ...

Edit in June 2017: To whom it may concern, particularly those with an insatiable urge to edit this answer. Look, I wrote this answer seven years ago. Yes, language standards change. If you really must better the world, please add your new answer but leave mine as is. As the answer has my name on it, I'd prefer it to contain my words too. Thank you.

SELECT report_id, computer_id, date_entered
FROM reports
WHERE date_entered = (
    SELECT date_entered 
    FROM reports 
    ORDER date_entered 
    DESC LIMIT 1
)

In Swift 4.2 and Xcode 10.1

let language = NSLocale.preferredLanguages[0]
print(language)//en

TL;DR

mysql_real_escape_string() will provide no protection whatsoever (and could furthermore munge your data) if:

• MySQL's NO_BACKSLASH_ESCAPES SQL mode is enabled (which it might be, unless you explicitly select another SQL mode every time you connect); and

• your SQL string literals are quoted using double-quote " characters.

This was filed as bug #72458 and has been fixed in MySQL v5.7.6 (see the section headed "The Saving Grace", below).

This is another, (perhaps less?) obscure EDGE CASE!!!

In homage to @ircmaxell's excellent answer (really, this is supposed to be flattery and not plagiarism!), I will adopt his format:

The Attack

Starting off with a demonstration...

mysql_query('SET SQL_MODE="NO_BACKSLASH_ESCAPES"'); // could already be set
$var = mysql_real_escape_string('" OR 1=1 -- ');
mysql_query('SELECT * FROM test WHERE name = "'.$var.'" LIMIT 1');

This will return all records from the test table. A dissection:

1. Selecting an SQL Mode

   mysql_query('SET SQL_MODE="NO_BACKSLASH_ESCAPES"');
   

   As documented under String Literals:

   There are several ways to include quote characters within a string:

   • A “'” inside a string quoted with “'” may be written as “''”.

   • A “"” inside a string quoted with “"” may be written as “""”.

   • Precede the quote character by an escape character (“\”).

   • A “'” inside a string quoted with “"” needs no special treatment and need not be doubled or escaped. In the same way, “"” inside a string quoted with “'” needs no special treatment.

   If the server's SQL mode includes NO_BACKSLASH_ESCAPES, then the third of these options—which is the usual approach adopted by mysql_real_escape_string()—is not available: one of the first two options must be used instead. Note that the effect of the fourth bullet is that one must necessarily know the character that will be used to quote the literal in order to avoid munging one's data.

2. The Payload

   " OR 1=1 -- 
   

   The payload initiates this injection quite literally with the " character. No particular encoding. No special characters. No weird bytes.

3. mysql_real_escape_string()

   $var = mysql_real_escape_string('" OR 1=1 -- ');
   

   Fortunately, mysql_real_escape_string() does check the SQL mode and adjust its behaviour accordingly. See libmysql.c:

   ulong STDCALL
   mysql_real_escape_string(MYSQL *mysql, char *to,const char *from,
                ulong length)
   {
     if (mysql->server_status & SERVER_STATUS_NO_BACKSLASH_ESCAPES)
       return escape_quotes_for_mysql(mysql->charset, to, 0, from, length);
     return escape_string_for_mysql(mysql->charset, to, 0, from, length);
   }
   

   Thus a different underlying function, escape_quotes_for_mysql(), is invoked if the NO_BACKSLASH_ESCAPES SQL mode is in use. As mentioned above, such a function needs to know which character will be used to quote the literal in order to repeat it without causing the other quotation character from being repeated literally.

   However, this function arbitrarily assumes that the string will be quoted using the single-quote ' character. See charset.c:

   /*
     Escape apostrophes by doubling them up
   
   // [ deletia 839-845 ]
   
     DESCRIPTION
       This escapes the contents of a string by doubling up any apostrophes that
       it contains. This is used when the NO_BACKSLASH_ESCAPES SQL_MODE is in
       effect on the server.
   
   // [ deletia 852-858 ]
   */
   
   size_t escape_quotes_for_mysql(CHARSET_INFO *charset_info,
                                  char *to, size_t to_length,
                                  const char *from, size_t length)
   {
   // [ deletia 865-892 ]
   
       if (*from == '\'')
       {
         if (to + 2 > to_end)
         {
           overflow= TRUE;
           break;
         }
         *to++= '\'';
         *to++= '\'';
       }
   

   So, it leaves double-quote " characters untouched (and doubles all single-quote ' characters) irrespective of the actual character that is used to quote the literal! In our case $var remains exactly the same as the argument that was provided to mysql_real_escape_string()—it's as though no escaping has taken place at all.

4. The Query

   mysql_query('SELECT * FROM test WHERE name = "'.$var.'" LIMIT 1');
   

   Something of a formality, the rendered query is:

   SELECT * FROM test WHERE name = "" OR 1=1 -- " LIMIT 1
   

As my learned friend put it: congratulations, you just successfully attacked a program using mysql_real_escape_string()...

The Bad

mysql_set_charset() cannot help, as this has nothing to do with character sets; nor can mysqli::real_escape_string(), since that's just a different wrapper around this same function.

The problem, if not already obvious, is that the call to mysql_real_escape_string() cannot know with which character the literal will be quoted, as that's left to the developer to decide at a later time. So, in NO_BACKSLASH_ESCAPES mode, there is literally no way that this function can safely escape every input for use with arbitrary quoting (at least, not without doubling characters that do not require doubling and thus munging your data).

The Ugly

It gets worse. NO_BACKSLASH_ESCAPES may not be all that uncommon in the wild owing to the necessity of its use for compatibility with standard SQL (e.g. see section 5.3 of the SQL-92 specification, namely the <quote symbol> ::= <quote><quote> grammar production and lack of any special meaning given to backslash). Furthermore, its use was explicitly recommended as a workaround to the (long since fixed) bug that ircmaxell's post describes. Who knows, some DBAs might even configure it to be on by default as means of discouraging use of incorrect escaping methods like addslashes().

Also, the SQL mode of a new connection is set by the server according to its configuration (which a SUPER user can change at any time); thus, to be certain of the server's behaviour, you must always explicitly specify your desired mode after connecting.

The Saving Grace

So long as you always explicitly set the SQL mode not to include NO_BACKSLASH_ESCAPES, or quote MySQL string literals using the single-quote character, this bug cannot rear its ugly head: respectively escape_quotes_for_mysql() will not be used, or its assumption about which quote characters require repeating will be correct.

For this reason, I recommend that anyone using NO_BACKSLASH_ESCAPES also enables ANSI_QUOTES mode, as it will force habitual use of single-quoted string literals. Note that this does not prevent SQL injection in the event that double-quoted literals happen to be used—it merely reduces the likelihood of that happening (because normal, non-malicious queries would fail).

In PDO, both its equivalent function PDO::quote() and its prepared statement emulator call upon mysql_handle_quoter()—which does exactly this: it ensures that the escaped literal is quoted in single-quotes, so you can be certain that PDO is always immune from this bug.

As of MySQL v5.7.6, this bug has been fixed. See change log:

Functionality Added or Changed

• Incompatible Change: A new C API function, mysql_real_escape_string_quote(), has been implemented as a replacement for mysql_real_escape_string() because the latter function can fail to properly encode characters when the NO_BACKSLASH_ESCAPES SQL mode is enabled. In this case, mysql_real_escape_string() cannot escape quote characters except by doubling them, and to do this properly, it must know more information about the quoting context than is available. mysql_real_escape_string_quote() takes an extra argument for specifying the quoting context. For usage details, see mysql_real_escape_string_quote().

   Note

  Applications should be modified to use mysql_real_escape_string_quote(), instead of mysql_real_escape_string(), which now fails and produces an CR_INSECURE_API_ERR error if NO_BACKSLASH_ESCAPES is enabled.

  References: See also Bug #19211994.

Safe Examples

Taken together with the bug explained by ircmaxell, the following examples are entirely safe (assuming that one is either using MySQL later than 4.1.20, 5.0.22, 5.1.11; or that one is not using a GBK/Big5 connection encoding):

mysql_set_charset($charset);
mysql_query("SET SQL_MODE=''");
$var = mysql_real_escape_string('" OR 1=1 /*');
mysql_query('SELECT * FROM test WHERE name = "'.$var.'" LIMIT 1');

...because we've explicitly selected an SQL mode that doesn't include NO_BACKSLASH_ESCAPES.

mysql_set_charset($charset);
$var = mysql_real_escape_string("' OR 1=1 /*");
mysql_query("SELECT * FROM test WHERE name = '$var' LIMIT 1");

...because we're quoting our string literal with single-quotes.

$stmt = $pdo->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$stmt->execute(["' OR 1=1 /*"]);

...because PDO prepared statements are immune from this vulnerability (and ircmaxell's too, provided either that you're using PHP=5.3.6 and the character set has been correctly set in the DSN; or that prepared statement emulation has been disabled).

$var  = $pdo->quote("' OR 1=1 /*");
$stmt = $pdo->query("SELECT * FROM test WHERE name = $var LIMIT 1");

...because PDO's quote() function not only escapes the literal, but also quotes it (in single-quote ' characters); note that to avoid ircmaxell's bug in this case, you must be using PHP=5.3.6 and have correctly set the character set in the DSN.

$stmt = $mysqli->prepare('SELECT * FROM test WHERE name = ? LIMIT 1');
$param = "' OR 1=1 /*";
$stmt->bind_param('s', $param);
$stmt->execute();

...because MySQLi prepared statements are safe.

Wrapping Up

Thus, if you:

• use native prepared statements

OR

• use MySQL v5.7.6 or later

OR

• in addition to employing one of the solutions in ircmaxell's summary, use at least one of:

  • PDO;
  • single-quoted string literals; or
  • an explicitly set SQL mode that does not include NO_BACKSLASH_ESCAPES

...then you should be completely safe (vulnerabilities outside the scope of string escaping aside).

Add items:

arr[0] = "product_1";
arr[1] = "100";
arr[2] = "10";
itm = new ListViewItem(arr);
listView1.Items.Add(itm);

Retrieve items:

productName = listView1.SelectedItems[0].SubItems[0].Text;
price = listView1.SelectedItems[0].SubItems[1].Text;
quantity = listView1.SelectedItems[0].SubItems[2].Text;

source code

check up blur():

$('#textarea').blur()

source: http://api.jquery.com/blur/

Just adding for who might need.. Don't forget to alter the table!

ALTER TABLE table_name ADD FULLTEXT(column_name);

As Sotirios Delimanolis already pointed out in the comments, there are two options:

Return ResponseEntity with error message

Change your method like this:

@RequestMapping(method = RequestMethod.GET)
public ResponseEntity getUser(@RequestHeader(value="Access-key") String accessKey,
                              @RequestHeader(value="Secret-key") String secretKey) {
    try {
        // see note 1
        return ResponseEntity
            .status(HttpStatus.CREATED)                 
            .body(this.userService.chkCredentials(accessKey, secretKey, timestamp));
    }
    catch(ChekingCredentialsFailedException e) {
        e.printStackTrace(); // see note 2
        return ResponseEntity
            .status(HttpStatus.FORBIDDEN)
            .body("Error Message");
    }
}

Note 1: You don't have to use the ResponseEntity builder but I find it helps with keeping the code readable. It also helps remembering, which data a response for a specific HTTP status code should include. For example, a response with the status code 201 should contain a link to the newly created resource in the Location header (see Status Code Definitions). This is why Spring offers the convenient build method ResponseEntity.created(URI).

Note 2: Don't use printStackTrace(), use a logger instead.

Provide an @ExceptionHandler

Remove the try-catch block from your method and let it throw the exception. Then create another method in a class annotated with @ControllerAdvice like this:

@ControllerAdvice
public class ExceptionHandlerAdvice {

    @ExceptionHandler(ChekingCredentialsFailedException.class)
    public ResponseEntity handleException(ChekingCredentialsFailedException e) {
        // log exception
        return ResponseEntity
                .status(HttpStatus.FORBIDDEN)
                .body("Error Message");
    }        
}

Note that methods which are annotated with @ExceptionHandler are allowed to have very flexible signatures. See the Javadoc for details.

Sorry, the short answer is no. CSS (2.1) will only mark up the elements of a DOM, not their attributes. You'd have to apply a specific class to each input.

Bummer I know, because that would be incredibly useful.

I know you've said you'd prefer CSS over JavaScript, but you should still consider using jQuery. It provides a very clean and elegant way of adding styles to DOM elements based on attributes.

check the command : NA!=NA : you'll get the result NA, hence the error message.

You have to use the function is.na for your ifstatement to work (in general, it is always better to use this function to check for NA values) :

comments = c("no","yes",NA)
for (l in 1:length(comments)) {
    if (!is.na(comments[l])) print(comments[l])
}
[1] "no"
[1] "yes"

Try Following

DECLARE @formatted_datetime char(23)
SET @formatted_datetime = CONVERT(char(23), GETDATE(), 121)
print @formatted_datetime

It's from the NeXTSTEP heritage.

Note: Most modern browsers will now allow you to navigate objects in the developer console. This answer is antiquated.

This method will walk through object properties and write them to the console with increasing indent:

function enumerate(o,s){

    //if s isn't defined, set it to an empty string
    s = typeof s !== 'undefined' ? s : "";

    //if o is null, we need to output and bail
    if(typeof o == "object" && o === null){

       console.log(s+k+": null");

    } else {    

        //iterate across o, passing keys as k and values as v
        $.each(o, function(k,v){

            //if v has nested depth
           if(typeof v == "object" && v !== null){

                //write the key to the console
                console.log(s+k+": ");

                //recursively call enumerate on the nested properties
                enumerate(v,s+"  ");

            } else {

                //log the key & value
                console.log(s+k+": "+String(v));
            }
        });
    }
}

Just pass it the object you want to iterate through:

    var response = $.ajax({
        url: myurl,
        dataType: "json"
    })
    .done(function(a){
       console.log("Returned values:");
       enumerate(a);
    })
    .fail(function(){ console.log("request failed");});

There are 2 steps you need to perform,

1. Add the custom domains addon and add the domain your going to use, eg www.mywebsite.com to your application
2. Go to your domain registrar control panel and set www.mywebsite.com to be a CNAME entry to yourapp.herokuapp.com assuming you are using the CEDAR stack.
3. There is a third step if you want to use a naked domain, eg mywebsite.com when you would have to add the IP addresses of the Heroku load balancers to your DNS for mywebsite.com

You can read more about this at http://devcenter.heroku.com/articles/custom-domains

At a guess you've missed out the first step perhaps?

UPDATE: Following the announcement of Bamboo's EOL proxy.heroku.com being retired (September 2014) for Bamboo applications so these should also now use the yourapp.herokuapp.com mapping now as well.

A little late to the party, but I think regular expressions are not the right tool for the job.

The problem is that you'll come across edge cases which would add extranous complexity to the regular expression. @est mentioned an example line:

for (int i = 0; i < 10; doSomethingTo("("));

This string literal contains an (unbalanced!) parenthesis, which breaks the logic. Apparently, you must ignore contents of string literals. In order to do this, you must take the double quotes into account. But string literals itself can contain double quotes. For instance, try this:

for (int i = 0; i < 10; doSomethingTo("\"(\\"));

If you address this using regular expressions, it'll add even more complexity to your pattern.

I think you are better off parsing the language. You could, for instance, use a language recognition tool like ANTLR. ANTLR is a parser generator tool, which can also generate a parser in Python. You must provide a grammar defining the target language, in your case C++. There are already numerous grammars for many languages out there, so you can just grab the C++ grammar.

Then you can easily walk the parser tree, searching for empty statements as while or for loop body.

By default server runs on development environment: $ rails s

If you're running on production environment: $ rails s -e production or $ RAILS_ENV=production rails s

It is also now possible to use OCaml for developing iOS applications. It is not part of the standard distribution and requires modifications provided by the Psellos company. See here for more information: http://psellos.com/ocaml/.

Is this any help?

#include <stdio.h>

#define MAX 10

int main()
{
    char grid[MAX][MAX];
    int i,j,row,col;

    printf("Please enter your grid size: ");
    scanf("%d %d", &row, &col);


    for (i = 0; i < row; i++) {
        for (j = 0; j < col; j++) {
            grid[i][j] = '.';
            printf("%c ", grid[i][j]);
        }
        printf("\n");
    }

    return 0;
}

You're way off track here.

You already have a nice, big error message. Why on Earth would you want to write code that checks $? explicitly after every single command? This is enormously cumbersome and error prone. The correct solution is stop checking $?.

Instead, use PowerShell's built in mechanism to blow up for you. You enable it by setting the error preference to the highest level:

$ErrorActionPreference = 'Stop'

I put this at the top of every single script I ever write, and now I don't have to check $?. This makes my code vastly simpler and more reliable.

If you run into situations where you really need to disable this behavior, you can either catch the error or pass a setting to a particular function using the common -ErrorAction. In your case, you probably want your process to stop on the first error, catch the error, and then log it.

Do note that this doesn't handle the case when external executables fail (exit code nonzero, conventionally), so you do still need to check $LASTEXITCODE if you invoke any. Despite this limitation, the setting still saves a lot of code and effort.

Additional reliability

You might also want to consider using strict mode:

Set-StrictMode -Version Latest

This prevents PowerShell from silently proceeding when you use a non-existent variable and in other weird situations. (See the -Version parameter for details about what it restricts.)

Combining these two settings makes PowerShell much more of fail-fast language, which makes programming in it vastly easier.

Bootstrap styling for jQuery UI Autocomplete

    .ui-autocomplete {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    float: left;
    display: none;
    min-width: 160px;   
    padding: 4px 0;
    margin: 0 0 10px 25px;
    list-style: none;
    background-color: #ffffff;
    border-color: #ccc;
    border-color: rgba(0, 0, 0, 0.2);
    border-style: solid;
    border-width: 1px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    -webkit-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    -moz-box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
    -webkit-background-clip: padding-box;
    -moz-background-clip: padding;
    background-clip: padding-box;
    *border-right-width: 2px;
    *border-bottom-width: 2px;
}

.ui-menu-item > a.ui-corner-all {
    display: block;
    padding: 3px 15px;
    clear: both;
    font-weight: normal;
    line-height: 18px;
    color: #555555;
    white-space: nowrap;
    text-decoration: none;
}

.ui-state-hover, .ui-state-active {
    color: #ffffff;
    text-decoration: none;
    background-color: #0088cc;
    border-radius: 0px;
    -webkit-border-radius: 0px;
    -moz-border-radius: 0px;
    background-image: none;
}

Flow chart describes the program (see old fortran flow charts - surely, there are some floating around on google).

Data flow diagram determines the flow of data, for example, between subroutines, or between different programs.

String[] result = "hi i'm paul".split("\\s+"); to split across one or more cases.

Or you could take a look at Apache Common StringUtils. It has StringUtils.split(String str) method that splits string using white space as delimiter. It also has other useful utility methods

There is one rule that is set by font-awesome.css, which you need to override.

You should set overrides in your CSS files rather than inline, but essentially, the icon-ok class is being set to vertical-align: baseline; by default and which I've corrected here:

<button id="whatever" class="btn btn-large btn-primary" name="Continue" type="submit">
    <span>Continue</span>
    <i class="icon-ok" style="font-size:30px; vertical-align: middle;"></i>
</button>

Example here: http://jsfiddle.net/fPXFY/4/ and the output of which is:

I've downsized the font-size of the icon above in this instance to 30px, as it feels too big at 40px for the size of the button, but this is purely a personal viewpoint. You could increase the padding on the button to compensate if required:

<button id="whaever" class="btn btn-large btn-primary" style="padding: 20px;" name="Continue" type="submit">
    <span>Continue</span>
    <i class="icon-ok" style="font-size:30px; vertical-align: middle;"></i>
</button>

Producing: http://jsfiddle.net/fPXFY/5/ the output of which is:

Go to the download page and download the Windows x86 version with filename jdk-7-windows-i586.exe.

Just summarizing an answer that was helpful to me (noting @erasmospunk's comment about using base-64 encoding). My goal was to have a short string that was mostly unique...

I'm no expert, so please correct this if it has any glaring errors (in Python again like the accepted answer):

import base64
import hashlib
import uuid

unique_id = uuid.uuid4()
# unique_id = UUID('8da617a7-0bd6-4cce-ae49-5d31f2a5a35f')

hash = hashlib.sha1(str(unique_id).encode("UTF-8"))
# hash.hexdigest() = '882efb0f24a03938e5898aa6b69df2038a2c3f0e'

result = base64.b64encode(hash.digest())
# result = b'iC77DySgOTjliYqmtp3yA4osPw4='

The result here is using more than just hex characters (what you'd get if you used hash.hexdigest()) so it's less likely to have a collision (that is, should be safer to truncate than a hex digest).

Note: Using UUID4 (random). See http://en.wikipedia.org/wiki/Universally_unique_identifier for the other types.

In the function viewDidLoad of the UIViewController use the code:

self.navigationItem.hidesBackButton = YES;

You can build it with list comprehension like this:

>>> dict((i, range(int(i), int(i) + 2)) for i in ['1', '2'])
{'1': [1, 2], '2': [2, 3]}

And for the second part of your question use defaultdict

>>> from collections import defaultdict
>>> s = [('yellow', 1), ('blue', 2), ('yellow', 3), ('blue', 4), ('red', 1)]
>>> d = defaultdict(list)
>>> for k, v in s:
        d[k].append(v)

>>> d.items()
[('blue', [2, 4]), ('red', [1]), ('yellow', [1, 3])]

That's as easy as

IsNull(FieldName, 0)

Or more completely:

SELECT iar.Description, 
  ISNULL(iai.Quantity,0) as Quantity, 
  ISNULL(iai.Quantity * rpl.RegularPrice,0) as 'Retail', 
  iar.Compliance 
FROM InventoryAdjustmentReason iar
LEFT OUTER JOIN InventoryAdjustmentItem iai  on (iar.Id = iai.InventoryAdjustmentReasonId)
LEFT OUTER JOIN Item i on (i.Id = iai.ItemId)
LEFT OUTER JOIN ReportPriceLookup rpl on (rpl.SkuNumber = i.SkuNo)
WHERE iar.StoreUse = 'yes'

Fill in the service layer with the model and then send it to the view. For example: ViewItem=ModelItem.ToString().Substring(0,100);

I hope you managed to obtain the json data from the json string.

Well I think this will be of help

try {
OkHttpClient client = new OkHttpClient();
Request request = new Request.Builder()
    .url(urls[0])
    .build();
Response responses = null;

try {
    responses = client.newCall(request).execute();
} catch (IOException e) {
    e.printStackTrace();
}   

String jsonData = responses.body().string();

JSONObject Jobject = new JSONObject(jsonData);
JSONArray Jarray = Jobject.getJSONArray("employees");

//define the strings that will temporary store the data
String fname,lname;

//get the length of the json array
int limit = Jarray.length()

//datastore array of size limit
String dataStore[] = new String[limit];

for (int i = 0; i < limit; i++) {
    JSONObject object     = Jarray.getJSONObject(i);

    fname = object.getString("firstName");
    lname = object.getString("lastName");

    Log.d("JSON DATA", fname + " ## " + lname);

    //store the data into the array
    dataStore[i] = fname + " ## " + lname;
}

//prove that the data was stored in the array      
 for (String content ; dataStore ) {
        Log.d("ARRAY CONTENT", content);
    }

Remember to use AsyncTask or SyncAdapter(IntentService), to prevent getting a NetworkOnMainThreadException

Also import the okhttp library in your build.gradle

compile 'com.squareup.okhttp:okhttp:2.4.0'

Starting from SQL Server 2016+, Query Store feature was introduced to monitor performance. It provides insight into query plan choice and performance. It’s not a complete replacement of trace or extended events, but as it’s evolving from version to version, we might get a fully functional query store in future releases from SQL Server. The primary flow of Query Store

1. SQL Server existing components interact with query store by utilising Query Store Manager.
2. Query Store Manager determines which Store should be used and then passes execution to that store (Plan or Runtime Stats or Query Wait Stats)
   • Plan Store - Persisting the execution plan information
   • Runtime Stats Store - Persisting the execution statistics information
   • Query Wait Stats Store - Persisting wait statistics information.
3. Plan, Runtime Stats and Wait store uses Query Store as an extension to SQL Server.

1. Enabling the Query Store: Query Store works at the database level on the server.

   • Query Store is not active for new databases by default.
   • You cannot enable the query store for the master or tempdb database.
   • Available DMV

     sys.database_query_store_options (Transact-SQL)

2. Collect Information in the Query Store: We collect all the available information from the three stores using Query Store DMV (Data Management Views).

   • Query Plan Store: Persisting the execution plan information and it is accountable for capturing all information that is related to query compilation.

     sys.query_store_query (Transact-SQL) sys.query_store_plan (Transact-SQL) sys.query_store_query_text (Transact-SQL)

   • Runtime Stats Store: Persisting the execution statistics information and it is probably the most frequently updated store. These statistics represent query execution data.

     sys.query_store_runtime_stats (Transact-SQL)

   • Query Wait Stats Store: Persisting and capturing wait statistics information.

     sys.query_store_wait_stats (Transact-SQL)

NOTE: Query Wait Stats Store is available only in SQL Server 2017+

if file is committed and pushed to github then you should run

git rm --fileName

git ls-files to make sure that the file is removed or untracked

git commit -m "UntrackChanges"

git push

ResourceManager will work if your image is in a resource file. If it is just a file in your project (let's say the root) you can get it using something like this:

System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
System.IO.Stream file = assembly .GetManifestResourceStream("AssemblyName." + channel);
this.pictureBox1.Image = Image.FromStream(file);

Or if you're in WPF:

    private ImageSource GetImage(string channel)
    {
        StreamResourceInfo sri = Application.GetResourceStream(new Uri("/TestApp;component/" + channel, UriKind.Relative));
        BitmapImage bmp = new BitmapImage();
        bmp.BeginInit();
        bmp.StreamSource = sri.Stream;
        bmp.EndInit();

        return bmp;
    }

I haven't tried it but it looks like animateLayoutChanges should do what you're looking for. I see it in the ImageSwitcher class, I assume it's in the ViewSwitcher class as well?

Check this out:

XAML:

<DataGrid Name="DataGrid1">
    <DataGrid.Columns>
        <DataGridTemplateColumn>
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <Button Click="ChangeText">Show/Hide</Button>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

Method:

private void ChangeText(object sender, RoutedEventArgs e)
{
    DemoModel model = (sender as Button).DataContext as DemoModel;
    model.DynamicText = (new Random().Next(0, 100).ToString());
}

Class:

class DemoModel : INotifyPropertyChanged
{
    protected String _text;
    public String Text
    {
        get { return _text; }
        set { _text = value; RaisePropertyChanged("Text"); }
    }

    protected String _dynamicText;
    public String DynamicText
    {
        get { return _dynamicText; }
        set { _dynamicText = value; RaisePropertyChanged("DynamicText"); }
    }

    public event PropertyChangedEventHandler PropertyChanged;
    public void RaisePropertyChanged(String propertyName)
    {
        PropertyChangedEventHandler temp = PropertyChanged;
        if (temp != null)
        {
            temp(this, new PropertyChangedEventArgs(propertyName));
        }
    }
}

Initialization Code:

ObservableCollection<DemoModel> models = new ObservableCollection<DemoModel>();
models.Add(new DemoModel() { Text = "Some Text #1." });
models.Add(new DemoModel() { Text = "Some Text #2." });
models.Add(new DemoModel() { Text = "Some Text #3." });
models.Add(new DemoModel() { Text = "Some Text #4." });
models.Add(new DemoModel() { Text = "Some Text #5." });
DataGrid1.ItemsSource = models;

First of all, to compare the two first you should distinguish queries with subqueries to:

1. a class of subqueries that always have corresponding equivalent query written with joins
2. a class of subqueries that can not be rewritten using joins

For the first class of queries a good RDBMS will see joins and subqueries as equivalent and will produce same query plans.

These days even mysql does that.

Still, sometimes it does not, but this does not mean that joins will always win - I had cases when using subqueries in mysql improved performance. (For example if there is something preventing mysql planner to correctly estimate the cost and if the planner doesn't see the join-variant and subquery-variant as same then subqueries can outperform the joins by forcing a certain path).

Conclusion is that you should test your queries for both join and subquery variants if you want to be sure which one will perform better.

For the second class the comparison makes no sense as those queries can not be rewritten using joins and in these cases subqueries are natural way to do the required tasks and you should not discriminate against them.

Execute only 1 of the below
Once a command works, skip the rest/ below to it:

Normal:

%SystemRoot%\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe myTest.dll
%SystemRoot%\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe myTest.dll /tlb:myTest.tlb
%SystemRoot%\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe myTest.dll /tlb:myTest.tlb /codebase

Only if you face issues, use old version 'v2.0.50727':

%SystemRoot%\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe myTest.dll
%SystemRoot%\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe myTest.dll /tlb:myTest.tlb
%SystemRoot%\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe myTest.dll /tlb:myTest.tlb 

Only if you built myTest.dll for 64bit Only, use 'Framework64' path:

%SystemRoot%\Microsoft.NET\Framework64\v4.0.30319\RegAsm.exe myTest.dll
%SystemRoot%\Microsoft.NET\Framework64\v2.0.50727\RegAsm.exe myTest.dll

Note: 64-bit built dlls will not work on 32-bit platform.

All options:

See https://docs.microsoft.com/en-us/dotnet/framework/tools/regasm-exe-assembly-registration-tool

This should do it, let me know if you have trouble with it:

Sub foo()
Dim x As Workbook
Dim y As Workbook

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Now, copy what you want from x:
x.Sheets("name of copying sheet").Range("A1").Copy

'Now, paste to y worksheet:
y.Sheets("sheetname").Range("A1").PasteSpecial

'Close x:
x.Close

End Sub

Alternatively, you could just:

Sub foo2()
Dim x As Workbook
Dim y As Workbook

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Now, transfer values from x to y:
y.Sheets("sheetname").Range("A1").Value = x.Sheets("name of copying sheet").Range("A1") 

'Close x:
x.Close

End Sub

To extend this to the entire sheet:

With x.Sheets("name of copying sheet").UsedRange
    'Now, paste to y worksheet:
    y.Sheets("sheet name").Range("A1").Resize( _
        .Rows.Count, .Columns.Count) = .Value
End With

And yet another way, store the value as a variable and write the variable to the destination:

Sub foo3()
Dim x As Workbook
Dim y As Workbook
Dim vals as Variant

'## Open both workbooks first:
Set x = Workbooks.Open(" path to copying book ")
Set y = Workbooks.Open(" path to destination book ")

'Store the value in a variable:
vals = x.Sheets("name of sheet").Range("A1").Value

'Use the variable to assign a value to the other file/sheet:
y.Sheets("sheetname").Range("A1").Value = vals 

'Close x:
x.Close

End Sub

The last method above is usually the fastest for most applications, but do note that for very large datasets (100k rows) it's observed that the Clipboard actually outperforms the array dump:

Copy/PasteSpecial vs Range.Value = Range.Value

That said, there are other considerations than just speed, and it may be the case that the performance hit on a large dataset is worth the tradeoff, to avoid interacting with the Clipboard.

You can try this code:

#include <algorithm>
#include <vector>

// You can use class, struct or primitive data type for Item
struct Item {
    //Some fields
};
typedef std::vector<Item> ItemVector;
typedef ItemVector::iterator ItemIterator;
//...
ItemVector vtItem;
//... (init data for vtItem)
Item itemToFind;
//...

ItemIterator itemItr;
itemItr = std::find(vtItem.begin(), vtItem.end(), itemToFind);
if (itemItr != vtItem.end()) {
    // Item found
    // doThis()
}
else {
    // Item not found
    // doThat()
}

The framework class has been modified to require a flag to inform fromHtml() how to process line breaks. This was added in Nougat, and only touches on the challenge of incompatibilities of this class across versions of Android.

I've published a compatibility library to standardize and backport the class and include more callbacks for elements and styling:

https://github.com/Pixplicity/HtmlCompat

While it is similar to the framework's Html class, some signature changes were required to allow more callbacks. Here's the sample from the GitHub page:

Spanned fromHtml = HtmlCompat.fromHtml(context, source, 0);
// You may want to provide an ImageGetter, TagHandler and SpanCallback:
//Spanned fromHtml = HtmlCompat.fromHtml(context, source, 0,
//        imageGetter, tagHandler, spanCallback);
textView.setMovementMethod(LinkMovementMethod.getInstance());
textView.setText(fromHtml);

   countBits(x){
     y=0;
     while(x){   
       y += x &  1 ;
       x  = x >> 1 ;
     }
   }

thats it?

without looking at your input file, only a guess

awk '{$1=$1}1' OFS=","

redirect to another file and rename as needed

All of the answers here use the Class.forName("my.vandor.Driver"); line to load the driver.

As an (better) alternative you can use the DriverManager helper class which provides you with a handful of methods to handle your JDBC driver/s.

You might want to

1. Use DriverManager.registerDriver(driverObject); to register your driver to it's list of drivers

Registers the given driver with the DriverManager. A newly-loaded driver class should call the method registerDriver to make itself known to the DriverManager. If the driver is currently registered, no action is taken

2. Use DriverManager.deregisterDriver(driverObject); to remove it.

Removes the specified driver from the DriverManager's list of registered drivers.

Example:

Driver driver = new oracle.jdbc.OracleDriver();
DriverManager.registerDriver(driver);
Connection conn = DriverManager.getConnection(url, user, password);
// ... 
// and when you don't need anything else from the driver
DriverManager.deregisterDriver(driver);

or better yet, use a DataSource

You might no need to having export, just add this line in catalina.sh :

CATALINA_OPTS="-Xms512M -Xmx1024M"

The information schema isn't the place to treat these things (see DDL database commands).

When you add a comment you need to change the table structure (table comments).

From MySQL 5.6 documentation:

INFORMATION_SCHEMA is a database within each MySQL instance, the place that stores information about all the other databases that the MySQL server maintains. The INFORMATION_SCHEMA database contains several read-only tables. They are actually views, not base tables, so there are no files associated with them, and you cannot set triggers on them. Also, there is no database directory with that name.

Although you can select INFORMATION_SCHEMA as the default database with a USE statement, you can only read the contents of tables, not perform INSERT, UPDATE, or DELETE operations on them.

Chapter 21 INFORMATION_SCHEMA Tables

Otherwise we may change the default property configurator name, setting the property spring.config.name=test and then having class-path resource src/test/test.properties our native instance of org.springframework.boot.SpringApplication will be auto-configured from this separated test.properties, ignoring application properties;

Benefit: auto-configuration of tests;

Drawback: exposing "spring.config.name" property at C.I. layer

ref: http://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html

spring.config.name=application # Config file name

In my experience, it's just a matter of iteration. Put your data and code wherever you think they go. Chances are, you'll be wrong anyway. But once you get a better idea of exactly how things are going to shape up, you're in a much better position to make these kinds of guesses.

As far as extension sources, we have a Code directory under trunk that contains a directory for python and a directory for various other languages. Personally, I'm more inclined to try putting any extension code into its own repository next time around.

With that said, I go back to my initial point: don't make too big a deal out of it. Put it somewhere that seems to work for you. If you find something that doesn't work, it can (and should) be changed.

This is how change the cursor from an arrow to a hand when you hover over a given object (myObject).

myObject.style.cursor = 'pointer';

If you would like to mount a particular host directory (/disk1/prometheus-data in the following example) as a volume in the volumes section of the Docker Compose YAML file, you can do it as below, e.g.:

version: '3'

services:
  prometheus:
    image: prom/prometheus
    volumes:
      - prometheus-data:/prometheus

volumes:
  prometheus-data:
    driver: local
    driver_opts:
      o: bind
      type: none
      device: /disk1/prometheus-data

By the way, in prometheus's Dockerfile, You may find the VOLUME instruction as below, which marks it as holding externally mounted volumes from native host, etc. (Note however: this instruction is not a must though to mount a volume into a container.):

Dockerfile

...
VOLUME ["/prometheus"]
...

Refs:

• https://docs.docker.com/compose/compose-file/#driver
• https://docs.docker.com/compose/compose-file/#driver_opts

Options and dependencies need to be inside arrays:

namespace :thing do
  desc "it does a thing"
  task :work, [:option, :foo, :bar] do |task, args|
    puts "work", args
  end
  
  task :another, [:option, :foo, :bar] do |task, args|
    puts "another #{args}"
    Rake::Task["thing:work"].invoke(args[:option], args[:foo], args[:bar])
    # or splat the args
    # Rake::Task["thing:work"].invoke(*args)
  end

end

Then

rake thing:work[1,2,3]
=> work: {:option=>"1", :foo=>"2", :bar=>"3"}

rake thing:another[1,2,3]
=> another {:option=>"1", :foo=>"2", :bar=>"3"}
=> work: {:option=>"1", :foo=>"2", :bar=>"3"}

NOTE: variable task is the task object, not very helpful unless you know/care about Rake internals.

RAILS NOTE:

If running the task from Rails, it's best to preload the environment by adding => [:environment] which is a way to setup dependent tasks.

  task :work, [:option, :foo, :bar] => [:environment] do |task, args|
    puts "work", args
  end

I would add this as a comment to the other good answers, but I need more reputation to do so. Be sure to allow for scientific notation if necessary, i.e. 3e4 = 30000. This is default behavior in many languages. I found the following regex to work:

/^[-+]?\d+([Ee][+-]?\d+)?$/;
//          ^^              If 'e' is present to denote exp notation, get it
//             ^^^^^          along with optional sign of exponent
//                  ^^^       and the exponent itself
//        ^            ^^     The entire exponent expression is optional

You could use a CSS pre-processor to do your skinning. With Sass you can do something similar to this:

_theme1.scss:

$theme-primary-color: #a00;
$theme-secondary-color: #d00;
// etc.

_theme2.scss:

$theme-primary-color: #666;
$theme-secondary-color: #ccc;
// etc.

styles.scss:

// import whichever theme you want to use
@import 'theme2';

-webkit-box-shadow: inset 0px 0px 2px $theme-primary-color;
-moz-box-shadow: inset 0px 0px 2px $theme-primary-color;

If it's not site wide theming but class based theming you need, then you can do this: http://codepen.io/jjenzz/pen/EaAzo

The bootstrap 3 documentation lists this under helper classes: Muted, Primary, Success, Info, Warning, Danger.

The bootstrap 4 documentation lists this under utilities -> color, and has more options: primary, secondary, success, danger, warning, info, light, dark, muted, white.

To access them one uses the class text-[class-name]

So, if I want the primary text color for example I would do something like this:

<p class="text-primary">This text is the primary color.</p>

This is not a huge number of choices, but it's some.

Using the stat.* bit masks does seem to me the most portable and explicit way of doing this. But on the other hand, I often forget how best to handle that. So, here's an example of masking out the 'group' and 'other' permissions and leaving 'owner' permissions untouched. Using bitmasks and subtraction is a useful pattern.

import os
import stat
def chmodme(pn):
    """Removes 'group' and 'other' perms. Doesn't touch 'owner' perms."""
    mode = os.stat(pn).st_mode
    mode -= (mode & (stat.S_IRWXG | stat.S_IRWXO))
    os.chmod(pn, mode)

Java Strings aren't character Iterable. You'll need:

for (int i = 0; i < examplestring.length(); i++) {
  char c = examplestring.charAt(i);
  ...
}

Awkward I know.

Updated answer

Check https://shatter-box.com/knowledgebase/android-apk-signing-tool-apk-signer/

Old answer

check apk-signer a nice way to sign your app

Are you using an error handler? If you're ignoring errors and try to name a sheet the same as an existing sheet or a name with invalid characters, it could be just skipping over that line. See the CleanSheetName function here

http://www.dailydoseofexcel.com/archives/2005/01/04/naming-a-sheet-based-on-a-cell/

for a list of invalid characters that you may want to check for.

Update

Other things to try: Fully qualified references, throwing in a Doevents, code cleaning. This code qualifies your Sheets reference to ThisWorkbook (you can change it to ActiveWorkbook if that suits). It also adds a thousand DoEvents (stupid overkill, but if something's taking a while to get done, this will allow it to - you may only need one DoEvents if this actually fixes anything).

Dim WS As Worksheet
Dim i As Long

With ThisWorkbook
    Set WS = .Worksheets.Add(After:=.Sheets(.Sheets.Count))
End With

For i = 1 To 1000
    DoEvents
Next i

WS.Name = txtSheetName.Value

Finally, whenever I have a goofy VBA problem that just doesn't make sense, I use Rob Bovey's CodeCleaner. It's an add-in that exports all of your modules to text files then re-imports them. You can do it manually too. This process cleans out any corrupted p-code that's hanging around.

# Make sure only root can run our script
if [ "$(id -u)" != "0" ]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

This helped me at the end:

Quick guide:

• Download Google USB Driver

• Connect your device with Android Debugging enabled to your PC

• Open Device Manager of Windows from System Properties.

• Your device should appear under Other devices listed as something like Android ADB Interface or 'Android Phone' or similar. Right-click that and click on Update Driver Software...

• Select Browse my computer for driver software

• Select Let me pick from a list of device drivers on my computer

• Double-click Show all devices

• Press the Have disk button

• Browse and navigate to [wherever your SDK has been installed]\google-usb_driver and select android_winusb.inf

• Select Android ADB Interface from the list of device types.

• Press the Yes button

• Press the Install button

• Press the Close button

Now you've got the ADB driver set up correctly. Reconnect your device if it doesn't recognize it already.

try to add \S at your pattern

^[A-Za-z]\S*$

In your particular case the fastest sort is probably the one described in this answer. It is exactly optimized for an array of 6 ints and uses sorting networks. It is 20 times (measured on x86) faster than library qsort. Sorting networks are optimal for sort of fixed length arrays. As they are a fixed sequence of instructions they can even be implemented easily by hardware.

Generally speaking there is many sorting algorithms optimized for some specialized case. The general purpose algorithms like heap sort or quick sort are optimized for in place sorting of an array of items. They yield a complexity of O(n.log(n)), n being the number of items to sort.

The library function qsort() is very well coded and efficient in terms of complexity, but uses a call to some comparizon function provided by user, and this call has a quite high cost.

For sorting very large amount of datas algorithms have also to take care of swapping of data to and from disk, this is the kind of sorts implemented in databases and your best bet if you have such needs is to put datas in some database and use the built in sort.

nanoScrollerJS is simply to use. I always use them...

Browser compatibility:

• IE7+
• Firefox 3+
• Chrome
• Safari 4+
• Opera 11.60+

Mobile browsers support:

• iOS 5+ (iPhone, iPad and iPod Touch)
• iOS 4 (with a polyfill)
• Android Firefox
• Android 2.2/2.3 native browser (with a polyfill)
• Android Opera 11.6 (with a polyfill)

Code example from the Documentation,

1. Markup - The following type of markup structure is needed to make the plugin work.

<div id="about" class="nano">
    <div class="nano-content"> ... content here ...  </div>
</div>

Assuming that ID is an identity column:

INSERT INTO TheTable(HospitalID, Email, Description)
SELECT 32, Email, Description FROM TheTable
WHERE HospitalID <> 32

Try to avoid loops with SQL. Try to think in terms of sets instead.

I have a potential solution which I guess is relevent, I posted about it here:

https://www.facebook.com/antimatterstudios/posts/10150752380719364

basically, you want a minimum length of 2 or 3, you can adjust how many 0's you put in this piece of code

var d = new Date();
var h = ("0"+d.getHours()).slice(-2);
var m = ("0"+d.getMinutes()).slice(-2);
var s = ("0"+d.getSeconds()).slice(-2);

I knew I would always get a single integer as a minimum (cause hour 1, hour 2) etc, but if you can't be sure of getting anything but an empty string, you can just do "000"+d.getHours() to make sure you get the minimum.

then you want 3 numbers? just use -3 instead of -2 in my code, I'm just writing this because I wanted to construct a 24 hour clock in a super easy fashion.

You can use a regex:

if (/ST1/i.test(code))

EugeneXa mentioned it in a comment, but it deserves to be an answer:

var template = $("#modal_template").html().trim();

This trims the offending whitespace from the beginning of the string. I used it with Mustache, like so:

var markup = Mustache.render(template, data);
$(markup).appendTo(container);

class Foo {
    const BAR = 'baz';
}

echo Foo::BAR;

This is the only way to make class constants. These constants are always globally accessible via Foo::BAR, but they're not accessible via just BAR.

To achieve a syntax like Foo::baz()->BAR, you would need to return an object from the function baz() of class Foo that has a property BAR. That's not a constant though. Any constant you define is always globally accessible from anywhere and can't be restricted to function call results.

Before defining abstract data types, let us considers the different view of system-defined data types. We all know that by default all primitive data types (int, float, etc.) support basic operations such as addition and subtraction. The system provides the implementations for the primitive data types. For user-defined data types, we also need to define operations. The implementation for these operations can be done when we want to actually use them. That means in general, user-defined data types are defined along with their operations.

To simplify the process of solving problems, we combine the data structures with their operations and we call this "Abstract Data Type". (ADT's).

Commonly used ADT'S include: Linked List, Stacks, Queues, Binary Tree, Dictionaries, Disjoint Sets (Union and find), Hash Tables and many others.

ADT's consist of two types:

1. Declaration of data.

2. Declaration of operation.

The default fonts are different across Windows, Mac, and Linux. As of VSCode 1.15.1, the default font settings can be found in the source code:

const DEFAULT_WINDOWS_FONT_FAMILY = 'Consolas, \'Courier New\', monospace';
const DEFAULT_MAC_FONT_FAMILY = 'Menlo, Monaco, \'Courier New\', monospace';
const DEFAULT_LINUX_FONT_FAMILY = '\'Droid Sans Mono\', \'Courier New\', monospace, \'Droid Sans Fallback\'';

The easiest way is to add a type to the variable that is receiving the value, like this:

var value: string = (event.target as any).value;

Or you could cast the value property as well as event.target like this:

var value = ((event.target as any).value as string);

Edit:

Lastly, you can define what EventTarget.value is in a separate .d.ts file. However, the type will have to be compatible where it's used elsewhere, and you'll just end up using any again anyway.

globals.d.ts

interface EventTarget {
    value: any;
}

I just found out, that by using asset_url helper you solve that problem.

asset_url("backgrounds/pattern.png", image)

Padding is the space between nearest components on the web page and margin is the space from the margin of the webpage.

Copy your CSV file into the /tmp folder

Files named in a COPY command are read or written directly by the server, not by the client application. Therefore, they must reside on or be accessible to the database server machine, not the client. They must be accessible to and readable or writable by the PostgreSQL user (the user ID the server runs as), not the client. COPY naming a file is only allowed to database superusers, since it allows reading or writing any file that the server has privileges to access.

You can use session variables to control access to pages and authorize valid users as well:

<?php
    session_start();

    if (!isset( $_SESSION["valid_user"]))
    {
        header("location:../");
        exit();
    }

    // Page goes here
?>

http://php.net/manual/en/reserved.variables.session.php.

Recently, I got cyber attacks and decided, I needed to know the users trying to access the Admin Panel or reserved part of the web Application.

So, I added a log access for the IP address and user sessions in a text file, because I don't want to bother my database.

Assuming I've guessed the pattern correctly (alternating increments of 1 and 3), this should produce the desired result:

def sequence():
    res = []
    diff = 1
    x = 1
    while x <= 100:
        res.append(x)
        x += diff
        diff = 3 if diff == 1 else 1
    return ', '.join(res)

UPDATE on 2019/Sep/01:

• Starting with Scala 2.13, prefer using scala.util.Using
• Fixed bug where finally would swallow original Exception thrown by try if finally code threw an Exception

After reviewing all of these answers on how to easily write a file in Scala, and some of them are quite nice, I had three issues:

1. In the Jus12's answer, the use of currying for the using helper method is non-obvious for Scala/FP beginners
2. Needs to encapsulate lower level errors with scala.util.Try
3. Needs to show Java developers new to Scala/FP how to properly nest dependent resources so the close method is performed on each dependent resource in reverse order - Note: closing dependent resources in reverse order ESPECIALLY IN THE EVENT OF A FAILURE is a rarely understood requirement of the java.lang.AutoCloseable specification which tends to lead to very pernicious and difficult to find bugs and run time failures

Before starting, my goal isn't conciseness. It's to facilitate easier understanding for Scala/FP beginners, typically those coming from Java. At the very end, I will pull all the bits together, and then increase the conciseness.

First, the using method needs to be updated to use Try (again, conciseness is not the goal here). It will be renamed to tryUsingAutoCloseable:

def tryUsingAutoCloseable[A <: AutoCloseable, R]
  (instantiateAutoCloseable: () => A) //parameter list 1
  (transfer: A => scala.util.Try[R])  //parameter list 2
: scala.util.Try[R] =
  Try(instantiateAutoCloseable())
    .flatMap(
      autoCloseable => {
        var optionExceptionTry: Option[Exception] = None
        try
          transfer(autoCloseable)
        catch {
          case exceptionTry: Exception =>
            optionExceptionTry = Some(exceptionTry)
            throw exceptionTry
        }
        finally
          try
            autoCloseable.close()
          catch {
            case exceptionFinally: Exception =>
              optionExceptionTry match {
                case Some(exceptionTry) =>
                  exceptionTry.addSuppressed(exceptionFinally)
                case None =>
                  throw exceptionFinally
              }
          }
      }
    )

The beginning of the above tryUsingAutoCloseable method might be confusing because it appears to have two parameter lists instead of the customary single parameter list. This is called currying. And I won't go into detail how currying works or where it is occasionally useful. It turns out that for this particular problem space, it's the right tool for the job.

Next, we need to create method, tryPrintToFile, which will create a (or overwrite an existing) File and write a List[String]. It uses a FileWriter which is encapsulated by a BufferedWriter which is in turn encapsulated by a PrintWriter. And to elevate performance, a default buffer size much larger than the default for BufferedWriter is defined, defaultBufferSize, and assigned the value 65536.

Here's the code (and again, conciseness is not the goal here):

val defaultBufferSize: Int = 65536

def tryPrintToFile(
  lines: List[String],
  location: java.io.File,
  bufferSize: Int = defaultBufferSize
): scala.util.Try[Unit] = {
  tryUsingAutoCloseable(() => new java.io.FileWriter(location)) { //this open brace is the start of the second curried parameter to the tryUsingAutoCloseable method
    fileWriter =>
      tryUsingAutoCloseable(() => new java.io.BufferedWriter(fileWriter, bufferSize)) { //this open brace is the start of the second curried parameter to the tryUsingAutoCloseable method
        bufferedWriter =>
          tryUsingAutoCloseable(() => new java.io.PrintWriter(bufferedWriter)) { //this open brace is the start of the second curried parameter to the tryUsingAutoCloseable method
            printWriter =>
              scala.util.Try(
                lines.foreach(line => printWriter.println(line))
              )
          }
      }
  }
}

The above tryPrintToFile method is useful in that it takes a List[String] as input and sends it to a File. Let's now create a tryWriteToFile method which takes a String and writes it to a File.

Here's the code (and I'll let you guess conciseness's priority here):

def tryWriteToFile(
  content: String,
  location: java.io.File,
  bufferSize: Int = defaultBufferSize
): scala.util.Try[Unit] = {
  tryUsingAutoCloseable(() => new java.io.FileWriter(location)) { //this open brace is the start of the second curried parameter to the tryUsingAutoCloseable method
    fileWriter =>
      tryUsingAutoCloseable(() => new java.io.BufferedWriter(fileWriter, bufferSize)) { //this open brace is the start of the second curried parameter to the tryUsingAutoCloseable method
        bufferedWriter =>
          Try(bufferedWriter.write(content))
      }
  }
}

Finally, it is useful to be able to fetch the contents of a File as a String. While scala.io.Source provides a convenient method for easily obtaining the contents of a File, the close method must be used on the Source to release the underlying JVM and file system handles. If this isn't done, then the resource isn't released until the JVM GC (Garbage Collector) gets around to releasing the Source instance itself. And even then, there is only a weak JVM guarantee the finalize method will be called by the GC to close the resource. This means that it is the client's responsibility to explicitly call the close method, just the same as it is the responsibility of a client to tall close on an instance of java.lang.AutoCloseable. For this, we need a second definition of the using method which handles scala.io.Source.

Here's the code for this (still not being concise):

def tryUsingSource[S <: scala.io.Source, R]
  (instantiateSource: () => S)
  (transfer: S => scala.util.Try[R])
: scala.util.Try[R] =
  Try(instantiateSource())
    .flatMap(
      source => {
        var optionExceptionTry: Option[Exception] = None
        try
          transfer(source)
        catch {
          case exceptionTry: Exception =>
            optionExceptionTry = Some(exceptionTry)
            throw exceptionTry
        }
        finally
          try
            source.close()
          catch {
            case exceptionFinally: Exception =>
              optionExceptionTry match {
                case Some(exceptionTry) =>
                  exceptionTry.addSuppressed(exceptionFinally)
                case None =>
                  throw exceptionFinally
              }
          }
      }
    )

And here is an example usage of it in a super simple line streaming file reader (currently using to read tab-delimited files from database output):

def tryProcessSource(
    file: java.io.File
  , parseLine: (String, Int) => List[String] = (line, index) => List(line)
  , filterLine: (List[String], Int) => Boolean = (values, index) => true
  , retainValues: (List[String], Int) => List[String] = (values, index) => values
  , isFirstLineNotHeader: Boolean = false
): scala.util.Try[List[List[String]]] =
  tryUsingSource(scala.io.Source.fromFile(file)) {
    source =>
      scala.util.Try(
        ( for {
            (line, index) <-
              source.getLines().buffered.zipWithIndex
            values =
              parseLine(line, index)
            if (index == 0 && !isFirstLineNotHeader) || filterLine(values, index)
            retainedValues =
              retainValues(values, index)
          } yield retainedValues
        ).toList //must explicitly use toList due to the source.close which will
                 //occur immediately following execution of this anonymous function
      )
  )

An updated version of the above function has been provided as an answer to a different but related StackOverflow question.

Now, bringing that all together with the imports extracted (making it much easier to paste into Scala Worksheet present in both Eclipse ScalaIDE and IntelliJ Scala plugin to make it easy to dump output to the desktop to be more easily examined with a text editor), this is what the code looks like (with increased conciseness):

import scala.io.Source
import scala.util.Try
import java.io.{BufferedWriter, FileWriter, File, PrintWriter}

val defaultBufferSize: Int = 65536

def tryUsingAutoCloseable[A <: AutoCloseable, R]
  (instantiateAutoCloseable: () => A) //parameter list 1
  (transfer: A => scala.util.Try[R])  //parameter list 2
: scala.util.Try[R] =
  Try(instantiateAutoCloseable())
    .flatMap(
      autoCloseable => {
        var optionExceptionTry: Option[Exception] = None
        try
          transfer(autoCloseable)
        catch {
          case exceptionTry: Exception =>
            optionExceptionTry = Some(exceptionTry)
            throw exceptionTry
        }
        finally
          try
            autoCloseable.close()
          catch {
            case exceptionFinally: Exception =>
              optionExceptionTry match {
                case Some(exceptionTry) =>
                  exceptionTry.addSuppressed(exceptionFinally)
                case None =>
                  throw exceptionFinally
              }
          }
      }
    )

def tryUsingSource[S <: scala.io.Source, R]
  (instantiateSource: () => S)
  (transfer: S => scala.util.Try[R])
: scala.util.Try[R] =
  Try(instantiateSource())
    .flatMap(
      source => {
        var optionExceptionTry: Option[Exception] = None
        try
          transfer(source)
        catch {
          case exceptionTry: Exception =>
            optionExceptionTry = Some(exceptionTry)
            throw exceptionTry
        }
        finally
          try
            source.close()
          catch {
            case exceptionFinally: Exception =>
              optionExceptionTry match {
                case Some(exceptionTry) =>
                  exceptionTry.addSuppressed(exceptionFinally)
                case None =>
                  throw exceptionFinally
              }
          }
      }
    )

def tryPrintToFile(
  lines: List[String],
  location: File,
  bufferSize: Int = defaultBufferSize
): Try[Unit] =
  tryUsingAutoCloseable(() => new FileWriter(location)) { fileWriter =>
    tryUsingAutoCloseable(() => new BufferedWriter(fileWriter, bufferSize)) { bufferedWriter =>
      tryUsingAutoCloseable(() => new PrintWriter(bufferedWriter)) { printWriter =>
          Try(lines.foreach(line => printWriter.println(line)))
      }
    }
  }

def tryWriteToFile(
  content: String,
  location: File,
  bufferSize: Int = defaultBufferSize
): Try[Unit] =
  tryUsingAutoCloseable(() => new FileWriter(location)) { fileWriter =>
    tryUsingAutoCloseable(() => new BufferedWriter(fileWriter, bufferSize)) { bufferedWriter =>
      Try(bufferedWriter.write(content))
    }
  }

def tryProcessSource(
    file: File,
  parseLine: (String, Int) => List[String] = (line, index) => List(line),
  filterLine: (List[String], Int) => Boolean = (values, index) => true,
  retainValues: (List[String], Int) => List[String] = (values, index) => values,
  isFirstLineNotHeader: Boolean = false
): Try[List[List[String]]] =
  tryUsingSource(() => Source.fromFile(file)) { source =>
    Try(
      ( for {
          (line, index) <- source.getLines().buffered.zipWithIndex
          values = parseLine(line, index)
          if (index == 0 && !isFirstLineNotHeader) || filterLine(values, index)
          retainedValues = retainValues(values, index)
        } yield retainedValues
      ).toList
    )
  }

As a Scala/FP newbie, I've burned many hours (in mostly head-scratching frustration) earning the above knowledge and solutions. I hope this helps other Scala/FP newbies get over this particular learning hump faster.

This is an edit of the answer from @kgiannakakis: The original code is wrong because it does not correctly close the InputStream after Properties.load(InputStream) is called. From the Javadocs: The specified stream remains open after this method returns.

================================

I believe that the configure method expects an absolute path. Anyhow, you may also try to load a Properties object first:

Properties props = new Properties();
InputStream is = new FileInputStream("log4j.properties");
try {
    props.load(is);
}
finally {
    try {
        is.close();
    }
    catch (Exception e) {
        // ignore this exception
    }
}
PropertyConfigurator.configure(props);

If the properties file is in the jar, then you could do something like this:

Properties props = new Properties();
InputStream is = getClass().getResourceAsStream("/log4j.properties");
try {
    props.load(is);
}
finally {
    try {
        is.close();
    }
    catch (Exception e) {
        // ignore this exception
    }
}
PropertyConfigurator.configure(props);

The above assumes that the log4j.properties is in the root folder of the jar file.

Model.find

1- Parameter: ID of the object to find.

2- If found: It returns the object (One object only).

3- If not found: raises an ActiveRecord::RecordNotFound exception.

Model.find_by

1- Parameter: key/value

Example:

User.find_by name: 'John', email: '[email protected]'

2- If found: It returns the object.

3- If not found: returns nil.

Note: If you want it to raise ActiveRecord::RecordNotFound use find_by!

Model.where

1- Parameter: same as find_by

2- If found: It returns ActiveRecord::Relation containing one or more records matching the parameters.

3- If not found: It return an Empty ActiveRecord::Relation.

A modified version of @nickf code:

function addhttp($url) {
    if (!preg_match("~^(?:f|ht)tps?://~i", $url)) {
        $url = "http://" . $url;
    }
    return $url;
}

Recognizes ftp://, ftps://, http:// and https:// in a case insensitive way.

This can happen when the cordova was installed globally on a different version of the node.

Being necessary to manually delete yourself as suggested in the previous comment:

which cordova

it will output something like this

/usr/local/bin/

then removing by

rm -rf /usr/local/bin/cordova

Add this class in .css class

.scrol  { 
font: bold 14px Arial; 
border:1px solid black; 
width:100% ; 
color:#616D7E; 
height:20px; 
overflow:scroll; 
overflow-y:scroll;
overflow-x:hidden;
}

and use the class in div. like here.

<div> <p class = "scrol" id = "title">-</p></div>

I have attached image , you see the out put of the above code

As in the multi-dimensional array an entry is another array, specify the index of that value to array_push:

array_push($md_array['recipe_type'], $newdata);