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POUncaught: You can't call rerender on a view being destroyed
 

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  1. POUncaught: You can't call rerender on a view being destroyed
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    <p>When I navigate around my app, I often get this error which further destroy all navigation in my app, and I have to reload the whole page:</p> <pre><code>Uncaught You can't call rerender on a view being destroyed </code></pre> <p>I, and a couple of the boys on the Ember IRC channel figured out what causes the problem.</p> <p>It's the group helper from <a href="https://github.com/emberjs/group-helper" rel="nofollow">https://github.com/emberjs/group-helper</a> that I use. The whole app is set up to use that, and lots of stuff breaks if I remove it because then a lot of metamorph tags starts to get created yet again.</p> <p>Any idea how to modify the helper so that the error goes away?</p> <pre><code>var get = Ember.get, set = Ember.set, EmberHandlebars = Ember.Handlebars; EmberHandlebars.registerHelper('group', function(options) { var data = options.data, fn = options.fn, view = data.view, childView; childView = view.createChildView(Ember._MetamorphView, { context: get(view, 'context'), template: function(context, options) { options.data.insideGroup = true; return fn(context, options); } }); view.appendChild(childView); }); </code></pre> <p><strong>Updated: Stuff below is outdated and only there because it was in the original post</strong></p> <p>In my app, i have these three subclasses, which I base all of my views, array controllers and routes on.</p> <p><strong>View:</strong></p> <pre><code>PageView = Ember.View.extend({ title: '', identifier: '', classNames: ['page'], willDestroyElement: function () { var elm_classes = this.$().attr('class') + ' out', elm_height = this.$().height(), temporary_container = $('&lt;div class="'+elm_classes+'"&gt;'); this.$().children().appendTo(temporary_container); temporary_container.insertAfter(this.$()); window.setTimeout(function() { temporary_container.remove(); }, animationKillDuration); }, didInsertElement: function() { $(document).trigger('royalbeer-page-rendered'); } }); </code></pre> <p><strong>Array controller</strong></p> <pre><code>RoyalArrayController = Ember.ArrayController.extend({ goto: function(route, slug) { if (!slug) this.transitionToRoute(route); else this.transitionToRoute(route, slug); } }); </code></pre> <p><strong>Route:</strong></p> <pre><code>RoyalRoute = Ember.Route.extend({ setupController: function(controller, model) { var modelName = this.routeName.substr(0, 1).toUpperCase() + this.routeName.substr(1), slug = model; if (model.hasOwnProperty('slug')) slug = model.slug; controller.set('model', App[modelName].find({'slug': slug})); }, serialize: function(slug, params) { var name, object; object = {}; name = params[0]; object[name] = slug; return object; } }); </code></pre> <p>I use the goto function in the array controller to bind elements in my app for navigation with <code>{{action goto 'routename' slug}}</code>, and my serializer and setupController on my route is set up to be able to handle that, which works perfectly until the error occurs.</p> <p>And I can only guess that it is because of those that the thing breaks.</p> <p>Any ideas as to what is going on and how to fix it?</p>
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    1. USchrisbuchholz
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    1. This table or related slice is empty.
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      1. POUncaught: You can't call rerender on a view being destroyed
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    1. COI updated the post because I targeted the real reason to the problem. I have added the exact code that causes the error.
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      1. POUncaught: You can't call rerender on a view being destroyed
      1. USchrisbuchholz
 

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