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copied!<p>In your controller you can do something like this:</p> <pre><code>indications1a: Ember.A(), indications1b: Ember.A(), loadIndications: function (name, parentId) { var self = this; $.connection.ccprIndicationsToRevalidation.server.getAllByParentId(parentId) .done(function (result) { self.set("indications%@".fmt(name), result); self.checkIfChildInChildren(name); }); }, loadChildIndications: function (name1, name2) { var parent = this.get('content.indication%@'.fmt(name1)), parents = this.get('indications%@'.fmt(name1)), childs = this.get('indications%@'.fmt(name2)); childs.clear(); if (!Em.isEmpty(parent) && !Ember.isEmpty(parents)) { var indication = null; parents.every(function (item) { if (Em.isEqual(Ember.get(item, 'id'), parent)) { indication = item; return false; } return true; }); if (!Ember.isEmpty(Ember.get(indication, 'hasChildren'))) { this.loadIndications(name2, indication.id); } else { this.set('content.indication%@'.fmt(name2), 0); } } }, checkIfChildInChildren: function (name) { var child = this.get('content.indication%@'.fmt(name)), childs = this.get('indications%@'.fmt(name)); var found = false; childs.every(function (item) { if (Em.isEqual(Em.get(item, 'id'), child)) { found = true; return false; } return true; }); if (!found) { this.set('content.indication%@'.fmt(name), 0); } }, indicationToRevalidation1aChanged: function () { this.loadChildIndications('1a', '1b'); }.observes('content.indication1a', 'indications1a.length'), hasNoIndications1b: function() { return this.get('indications1b.length') === 0; }.property('indications1b.length'), </code></pre> <p>in the setupController of the route</p> <pre><code>controller.get('indications1a').clear(); controller.get('indications1b').clear(); controller.loadIndications('1a', null); </code></pre> <p>the handlebars:</p> <pre><code> {{view Bootstrap.Forms.Select label=false contentBinding="controller.indications1a" optionLabelPath="content.description" optionValuePath="content.id" valueBinding="controller.content.indication1a"}} {{view Bootstrap.Forms.Select label=false contentBinding="controller.indications1b" optionLabelPath="content.description" optionValuePath="content.id" disabledBinding="controller.hasNoIndications1b" valueBinding="controller.content.indication1b"}} </code></pre>

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