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PONo method 'get' on backbone model save
 

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    <p>I'm using backbone for a reasonably complicated form. I have a number of nested models, and have been computing other variables in the parent model like so:</p> <pre><code>// INSIDE PARENT MODEL computedValue: function () { var value = this.get('childModel').get('childModelProperty'); return value; } </code></pre> <p>This seems to work fine for keeping my UI in sync, but as soon as I call</p> <pre><code>.save() </code></pre> <p>on the parent model, I get:</p> <pre><code>Uncaught TypeError: Object #&lt;Object&gt; has no method 'get' </code></pre> <p>It seems that the child model kind of temporarily stops responding.</p> <p>Am I doing something inherently wrong?</p> <p>EDIT: The stack trace is:</p> <pre><code>Uncaught TypeError: Object #&lt;Object&gt; has no method 'get' publish.js:90 Backbone.Model.extend.neutralDivisionComputer publish.js:90 Backbone.Model.extend.setNeutralComputed publish.js:39 Backbone.Events.trigger backbone.js:163 _.extend.change backbone.js:473 _.extend.set backbone.js:314 _.extend.save.options.success backbone.js:385 f.Callbacks.o jquery.min.js:2 f.Callbacks.p.fireWith jquery.min.js:2 w jquery.min.js:4 f.support.ajax.f.ajaxTransport.send.d </code></pre> <p>EDIT #2 in response to comment below:</p> <p>There's something basic I'm still not getting. I replaced a few references to this.get('childModel')['childModelProperty'] and now I get things like 'cannot read property childModelProperty of undefined.</p> <p>I'm not yet pulling anything from the server, the parent model is just created like</p> <pre><code>define(['jquery', 'underscore', 'backbone', 'models/childmodel'], function($, _, Backbone, ChildModel) { var ParentModel = Backbone.Model.extend({ defaults: { childModel : new ChildModel() } </code></pre>
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    1. COtry dropping the second .get down one line, so you can identify which call to get() is causing the error, by line number
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    2. COcan you include the stack trace of the error
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    3. COI did some other checking and it's the second get() call.
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