This is a bug due to a new version of jQuery which ember is not yet able to handle. For now you can change the following line in your `bower.json` file. Then run `bower install` and it should work.

    &quot;jquery&quot;: &quot;^1.11.3&quot;,

to
    
    &quot;jquery&quot;: &quot;1.11.3&quot;,

A new version of ember.js is [imminent](https://github.com/emberjs/ember.js/pull/12793) which should fix [this](https://github.com/ember-cli/ember-cli/issues/5316).

I am trying to create a view where I save an object but I&#39;d like to _undo_ that save if some exception is raised. This is what I tried:

    class MyView(View):
    
        @transaction.atomic
        def post(self, request, *args, **kwargs):
            try:
                some_object = SomeModel(...)
                some_object.save()
    
                if something:
                    raise exception.NotAcceptable()
                    # When the workflow comes into this condition, I think the previous save should be undone
                    # What am I missing?
    
            except exception.NotAcceptable, e:
                # do something

What am I doing wrong? even when the exception is raised `some_object` is still in Database.

Django - Rollback save with transaction atomic

I have an existing Web API 2 service and need to modify one of the methods to take a custom object as another parameter, currently the method has one parameter which is a simple string coming from the URL.  After adding the custom object as a parameter I am now getting a 415 unsupported media type error when calling the service from a .NET windows app.  Interestingly, I can successfully call this method using javascript and the jquery ajax method.

The Web API 2 service method looks like this:

    &lt;HttpPost&gt;
    &lt;HttpGet&gt;
    &lt;Route(&quot;{view}&quot;)&gt;
    Public Function GetResultsWithView(view As String, pPaging As Paging) As HttpResponseMessage
       Dim resp As New HttpResponseMessage
       Dim lstrFetchXml As String = String.Empty
       Dim lstrResults As String = String.Empty
    
       Try
          &#39;... do some work here to generate xml string for the response
          &#39;// write xml results to response
          resp.Content = New StringContent(lstrResults)
          resp.Content.Headers.ContentType.MediaType = &quot;text/xml&quot;
          resp.Headers.Add(&quot;Status-Message&quot;, &quot;Query executed successfully&quot;)
          resp.StatusCode = HttpStatusCode.OK
       Catch ex As Exception
          resp.StatusCode = HttpStatusCode.InternalServerError
          resp.Headers.Add(&quot;Status-Message&quot;, String.Format(&quot;Error while retrieving results from view {0}: {1}&quot;, view, ex.Message))
       End Try
       Return resp
    End Function

The method allows both `POST` and `GET` because the `Paging` object is optional.  If I call this method with a `GET` request it works.

And the simple .NET client code calling the service looks like this:

    Dim uri As String = BASE_URI + &quot;fetch/someview&quot;
    Dim resp As HttpWebResponse
    Dim sr As StreamReader
    Dim lstrResponse As String
    Dim reqStream As Stream
    Dim bytData As Byte()
    Dim req As HttpWebRequest = WebRequest.Create(uri)
    Dim lstrPagingJSON As String
    Dim lPaging As New Paging
    Try
       lPaging.Page = 1
       lPaging.Count = 100
       lPaging.PagingCookie = &quot;&quot;
       req.Method = &quot;POST&quot;
       lstrPagingJSON = JsonSerializer(Of Paging)(lPaging)
       bytData = Encoding.UTF8.GetBytes(lstrPagingJSON)
       req.ContentLength = bytData.Length
       reqStream = req.GetRequestStream()
       reqStream.Write(bytData, 0, bytData.Length)
       reqStream.Close()
       req.ContentType = &quot;application/json&quot;
    
       resp = req.GetResponse()
    
       sr = New StreamReader(resp.GetResponseStream, Encoding.UTF8)
       lstrResponse = sr.ReadToEnd
       &#39;// do something with the response here
    Catch exweb As WebException
       txtOutput.AppendText(&quot;Error during request: &quot; + exweb.Message)
    Catch ex As Exception
       txtOutput.AppendText(String.Format(&quot;General error during request to {0}: {1}&quot;, uri, ex.Message))
    End Try

The .NET client is running on the 4.5 framework and the service is on 4.5.2 framework.  The error is thrown at the `resp = req.GetResponse()` line. Some things I tried already:

 - on the client, set the `req.Accept` value to &quot;application/xml&quot; or
   &quot;text/xml&quot;
 - in the service method, removed the line
   `resp.Content.Headers.ContentType.MediaType = &quot;text/xml&quot;
 - replace the XML response content with some static JSON, tried to rule out any problems with sending in JSON on the request and getting XML back on the response

So far I keep getting the same 415 error response no matter what I try.

I mentioned this works when called from javascript, here&#39;s my ajax call that is working:

    $.ajax({
       headers: {},
       url: &quot;api/fetch/someview&quot;,
       type: &quot;POST&quot;,
       data: &quot;{Count:100,Page:1,PagingCookie:\&quot;\&quot;}&quot;,
       contentType: &quot;application/json; charset=utf-8&quot;,
       dataType: &quot;xml&quot;,
       success: function (data) {
          alert(&quot;call succeeded&quot;);
       },
       failure: function (response) {
          alert(&quot;call failed&quot;);
       }
    });

On the service side, there is nothing fancy going on with the route config or anything else, it&#39;s pretty much all out-of-the-box Web API 2.  I know the routing is working, calls are being correctly routed to the method, they&#39;re not going somewhere else unexpectedly, so what am I missing in the .NET client?  Any help is much appreciated!

**--- UPDATE ---**&lt;br/&gt;
I tried to create a completely new Web API service to rule out any possible issues with the existing service, I created a controller with a single method that takes a custom object as the parameter.  I then tried calling that from the .NET client and got the same error.  I also tried using WebClient instead of HttpWebRequest, but still get the same error. This is also something that previously worked for me with Web API (prior to Web API 2).

**--- UPDATE ---**&lt;br/&gt;
I also tried creating a new web app using Web API 1, when I call that with a POST my complex object parameter is now coming in null.  I have another web service running Web API 1 and verified that I can still call that successfully with complex objects.  Whatever my problem is, it appears to be something with the JSON passing between the client and server.  I have checked the JSON I&#39;m sending it and its valid, the object definition is also an exact match between the client and server so the JSON should be able to be parsed by the server.

HTTP 415 unsupported media type error when calling Web API 2 endpoint

I&#39;m starting with ember. I followed the Getting Started guide at [emberjs.com][1] and managed to create a new ember application by running the following commands:

    npm install -g ember-cli
    ember new sample-app

Everything went successful and I can see the app files generated by ember-cli. Soon after that I did:

    ember server

The command line shows:

    version: 1.13.13
    Livereload server on http://localhost:49153
    Serving on http://localhost:4200/
    
    Build successful - 4426ms.
    
    Slowest Trees                                 | Total               
    ----------------------------------------------+---------------------
    ConcatWithMaps: Concat: Vendor                | 3498ms              
    
    Slowest Trees (cumulative)                    | Total (avg)         
    ----------------------------------------------+---------------------
    ConcatWithMaps: Concat: Vendor (1)            | 3498ms 

The problem comes when I go to http://localhost:4200. Nothing gets loaded and the Chrome console is showing the following:

    Uncaught Error: Assertion Failed: Ember Views require jQuery between 1.7 and 2.1
    Uncaught Error: Could not find module `ember` imported from `sample-app/app`

I tried to fix this by reinstalling ember-cli, bower and npm but nothing is working.

Here&#39;s additional info in case is necessary:

    $ ember -v
    version: 1.13.13
    node: 5.4.0
    npm: 2.14.10
    os: darwin x64

    $ npm -v
    3.5.3
    
    $ bower -v
    1.7.2


Help is much appreciated. Thanks in advance!

  [1]: http://emberjs.com

Getting &quot;Uncaught Error: Assertion Failed: Ember Views require jQuery between 1.7 and 2.1&quot; with app created through ember-cli

I'm starting with ember. I followed the Getting Started guide at <a href="http://emberjs.com" target="_blank" rel="noopener noreferrer">emberjs.com</a> and managed to create a new ember application by running the following commands:
<pre><code class="hljs language-arduino">npm install -g ember-cli
ember new sample-app
</code></pre>
Everything went successful and I can see the app files generated by ember-cli. Soon after that I did:
<pre><code class="hljs">ember server
</code></pre>
The command line shows:
<pre><code class="hljs language-vbnet">version: 1.13.13
Livereload server on http://localhost:49153
Serving on http://localhost:4200/

Build successful - 4426ms.

Slowest Trees | Total 
----------------------------------------------+---------------------
ConcatWithMaps: Concat: Vendor | 3498ms 

Slowest Trees (cumulative) | Total (avg) 
----------------------------------------------+---------------------
ConcatWithMaps: Concat: Vendor (1) | 3498ms 
</code></pre>
The problem comes when I go to <a href="http://localhost:4200" target="_blank" rel="noopener noreferrer">http://localhost:4200</a>. Nothing gets loaded and the Chrome console is showing the following:
<pre><code class="hljs language-javascript">Uncaught Error: Assertion Failed: Ember Views require jQuery between 1.7 and 2.1
Uncaught Error: Could not find module `ember` imported from `sample-app/app`
</code></pre>
I tried to fix this by reinstalling ember-cli, bower and npm but nothing is working.
Here's additional info in case is necessary:
<pre><code class="hljs language-makefile">$ ember -v
version: 1.13.13
node: 5.4.0
npm: 2.14.10
os: darwin x64

$ npm -v
3.5.3

$ bower -v
1.7.2
</code></pre>
Help is much appreciated. Thanks in advance!

I have a simple Firebase function that updates some data. However, the interpreter says that the first argument contains &quot;undefined&quot; in property &#39;users.tester1&#39;. Can somebody help me please?

    var objify = function() {
      var rv = {};
        for (var i = 0; i &lt; arguments.length; ++i)
          rv[arguments[i]] = rv[arguments[i+1]];
        return rv;
    }
        
        addUser(&quot;tester1&quot;, []);
    
    var addUser = function(name, edges){
      if(!checkIfUsernameExists(name) &amp;&amp; !checkIfNodeNameExists(name) &amp;&amp; !checkIfEdgeNameExists(name)){
        var time = Firebase.ServerValue.TIMESTAMP;

        //HERE: I think the error is on this line 
        refs.users.update(objify(name, &quot;filler&quot;));

        refs.users.child(name).set({
          &quot;id&quot; : time,
          &quot;edges&quot; : &quot;filler&quot;
        });
        refs.users.child(name).child(&quot;edges&quot;).update({
          &quot;to&quot; : &quot;filler&quot;,
          &quot;from&quot; : &quot;filler&quot;
        });
    
        addNode(new Node(name, time, name));
    
        for(var e in edges){
          refs.users.child(name).child(&quot;edges/to&quot;).update(objify(edges[e].name, true));
          addEdge(new Edge(edges[e].name, time, edges[e].to, edges[e].arrows));
          //TODO add a &quot;from&quot; edge so that you know who wants to eat you
        }
        refs.users.child(name).child(&quot;edges/to&quot;).set({&quot;filler&quot; : null});
      } else {
        alert(&quot;user/node/edge name taken.&quot;);
      }
    };



Firebase.update failed : first argument contains undefined in property

&lt;!-- language-all: lang-ts --&gt; 

My app has a NameService which holds the name. 

There are two child components of App, Navbar and TheContent which reference this service. Whenever the name changes in the service, i want it to update in both of the other components. How can i do this?

    import {Component, Injectable} from &#39;angular2/core&#39;

    // Name Service

    @Injectable()
    class NameService {
      name: any;
      constructor() {
        this.name = &quot;Jack&quot;;
      }
      change(){
        this.name = &quot;Jane&quot;;
      }
    }

    // The navbar
    @Component({
      selector: &#39;navbar&#39;,
      template: &#39;&lt;div&gt;This is the navbar, user name is {{name}}.&lt;/div&gt;&#39;
    })
    export class Navbar {
      name: any;
      constructor(nameService: NameService) {
        this.name = nameService.name;
      }
    }

    // The content area
    @Component({
      selector: &#39;thecontent&#39;,
      template: &#39;&lt;div&gt;This is the content area. Hello user {{name}}. &lt;button (click)=changeMyName()&gt;Change the name&lt;/button&gt;&lt;/div&gt;&#39;
    })
    export class TheContent {

      name: any;

      constructor(public nameService: NameService) {
        this.name = nameService.name;
      }
      changeMyName() {
    	   this.nameService.change();
         console.log(this.nameService.name);
      }
    }


    @Component({
      selector: &#39;app&#39;,
      providers: [NameService],
      directives: [TheContent, Navbar],
      template: &#39;&lt;navbar&gt;&lt;/navbar&gt;&lt;thecontent&gt;&lt;/thecontent&gt;&#39;
    })
    export class App {
      constructor(public nameService: NameService) {
      }
    }

updating variable changes in components from a service with angular2

I am using firebase for my chat application. In chat object I am adding time stamp using `Firebase.ServerValue.TIMESTAMP` method.

I need to show the message received time in my chat application using this Time stamp .

if it&#39;s current time i need to show the time only.It&#39;s have days difference i need to show the date and time or only date.

I used the following code for convert the Firebase time stamp but i not getting the actual time.

    var timestamp = &#39;1452488445471&#39;;
    var myDate = new Date(timestamp*1000);
    var formatedTime=myDate.toJSON();

Please suggest the solution for this issue

Firebase TIMESTAMP to date and Time

I have a date `&#39;12/12/1955 12:00:00 AM&#39;` stored in a hidden column. I want to display the date without the time.

How do I do this?

How to remove time part from Date?

I am trying to do A SIMPLE using react-router ( **version ^1.0.3** ) to redirect to another view.

    import React from &#39;react&#39;;
    import {Router, Route, Link, RouteHandler} from &#39;react-router&#39;;


    class HomeSection extends React.Component {
    
      static contextTypes = {
        router: PropTypes.func.isRequired
      };
    
      constructor(props, context) {
        super(props, context);
      }
    
      handleClick = () =&gt; {
        console.log(&#39;HERE!&#39;, this.contextTypes);
        // this.context.location.transitionTo(&#39;login&#39;);
      };
    
      render() {
        return (
          &lt;Grid&gt;
            &lt;Row className=&quot;text-center&quot;&gt;          
              &lt;Col md={12} xs={12}&gt;
                &lt;div className=&quot;input-group&quot;&gt;
                  &lt;span className=&quot;input-group-btn&quot;&gt;
                    &lt;button onClick={this.handleClick} type=&quot;button&quot;&gt;
                    &lt;/button&gt;
                  &lt;/span&gt;
                &lt;/div&gt;
              &lt;/Col&gt;
            &lt;/Row&gt;
          &lt;/Grid&gt;
        );
      }
    };
    
    HomeSection.contextTypes = {
      location() {
        React.PropTypes.func.isRequired
      }
    }
    
    export default HomeSection;

all I need is to send the use to &#39;/login&#39; and that&#39;s it.

What can I do ?

errors in console:

&gt;Uncaught ReferenceError: PropTypes is not defined

file with my routes

    // LIBRARY
    /*eslint-disable no-unused-vars*/
    import React from &#39;react&#39;;
    /*eslint-enable no-unused-vars*/
    import {Route, IndexRoute} from &#39;react-router&#39;;
    
    // COMPONENT
    import Application from &#39;./components/App/App&#39;;
    import Contact from &#39;./components/ContactSection/Contact&#39;;
    import HomeSection from &#39;./components/HomeSection/HomeSection&#39;;
    import NotFoundSection from &#39;./components/NotFoundSection/NotFoundSection&#39;;
    import TodoSection from &#39;./components/TodoSection/TodoSection&#39;;
    import LoginForm from &#39;./components/LoginForm/LoginForm&#39;;
    import SignupForm from &#39;./components/SignupForm/SignupForm&#39;;
    
    export default (
        &lt;Route component={Application} path=&#39;/&#39;&gt;
          &lt;IndexRoute component={HomeSection} /&gt;
          &lt;Route component={HomeSection} path=&#39;home&#39; /&gt;
          &lt;Route component={TodoSection} path=&#39;todo&#39; /&gt;
          &lt;Route component={Contact} path=&#39;contact&#39; /&gt;
          &lt;Route component={LoginForm} path=&#39;login&#39; /&gt;
          &lt;Route component={SignupForm} path=&#39;signup&#39; /&gt;
          &lt;Route component={NotFoundSection} path=&#39;*&#39; /&gt;
        &lt;/Route&gt;
    );



How to do a redirect to another route with react-router?

I&#39;m following a tutorial about Jenkins pipeline and I can get a &quot;hello world&quot; working under at node 6.10 docker container.

But, when I added a default EmberJS app (using `ember init`) to the repo and attempt to build that in the pipeline, it fails when running npm install (because of directory access issues). The Jenkinsfile can be seen here: https://github.com/CloudTrap/pipeline-tutorial/blob/fix-build/Jenkinsfile

The error message printed by the build is (which is installed locally and run using `java -jar jenkins.war` on a Macbook, not relevant but included just in case) is:

    npm ERR! Linux 4.9.12-moby
    npm ERR! argv &quot;/usr/local/bin/node&quot; &quot;/usr/local/bin/npm&quot; &quot;install&quot;
    npm ERR! node v6.10.0
    npm ERR! npm  v3.10.10
    npm ERR! path /.npm
    npm ERR! code EACCES
    npm ERR! errno -13
    npm ERR! syscall mkdir
    
    npm ERR! Error: EACCES: permission denied, mkdir &#39;/.npm&#39;
    npm ERR!     at Error (native)
    npm ERR!  { Error: EACCES: permission denied, mkdir &#39;/.npm&#39;
    npm ERR!     at Error (native)
    npm ERR!   errno: -13,
    npm ERR!   code: &#39;EACCES&#39;,
    npm ERR!   syscall: &#39;mkdir&#39;,
    npm ERR!   path: &#39;/.npm&#39;,
    npm ERR!   parent: &#39;pipeline-tutorial&#39; }
    npm ERR! 
    npm ERR! Please try running this command again as root/Administrator.

Note: I would like to *not* run `npm install` as root / sudo.

UPDATE: I have been able to make some progress as follows:

I found the command that Jenkins uses to build using the container from the logs:

    [Pipeline] withDockerContainer
    $ docker run -t -d -u 501:20 -w /long-workspace-directory -v /long-workspace-directory:/long-workspace-directory:rw -v /long-workspace-directory@tmp:/long-workspace-directory@tmp:rw -e

So when the docker image runs, it&#39;s work directory is a `/long-workspace-directory` (it&#39;s really a cryptic looking jenkins workspace path) and the user id is 501 (group id 20), etc. The user doesn&#39;t have a name (which is apparently breaking other things not related to this question).

1. Changed agent to use a Dockefile:

    &lt;!-- language: lang-groovy --&gt;

        agent {
          dockerfile {
            filename &#39;Dockerfile&#39;
            args &#39;-v /.cache/ -v /.bower/  -v /.config/configstore/&#39;
          }
        }

2. Specify `args &#39;-v ...&#39;` for creating volumes for the directories npm install / bower needs.

npm install fails in jenkins pipeline in docker

I&#39;m using [ember-cli-code-coverage][1] with [ember-cli-mocha][2]. When I run `COVERAGE=true ember test` I&#39;m getting 0% coverage for statements, functions, and lines. Yet, I have tests that are covering those sections. Any I missing something in my setup?



[![enter image description here][3]][3]

unit test file:

      beforeEach(function() {
        controller = this.subject();
      });
    
      it(&#39;sets selectedImage to null&#39;, function() {
        expect(controller.get(&#39;selectedImage&#39;)).to.eql(null);
      });
    
      describe(&#39;setCoverageTest&#39;, function() {
        it(&#39;sets selectedImage to true&#39;, function()  {
          expect(controller.get(&#39;selectedImage&#39;)).to.eql(null);
          controller.setCoverageTest();
          expect(controller.get(&#39;selectedImage&#39;)).to.be.true;
        });
      });
    

config/coverage.js:

    module.exports = {
      excludes: [&#39;*/templates/**/*&#39;],
      useBabelInstrumenter: true
    };


  [1]: https://github.com/kategengler/ember-cli-code-coverage
  [2]: https://github.com/ember-cli/ember-cli-mocha
  [3]: https://i.stack.imgur.com/Oc9Yz.png

Content Type	Original Author	Original Content on Stackoverflow
Question	Daniel B. Lopez	View Question on Stackoverflow
Solution 1 - Javascript	Lawree	View Answer on Stackoverflow

Getting "Uncaught Error: Assertion Failed: Ember Views require jQuery between 1.7 and 2.1" with app created through ember-cli

Javascript Problem Overview

Javascript Solutions

Solution 1 - Javascript

HTTP 415 unsupported media type error when calling Web API 2 endpoint

Django - Rollback save with transaction atomic

Attributions