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18460104
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2013-08-27T08:02:19.533
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2013-08-28T20:52:14.543
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2013-08-28T20:52:14.543
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This seems to be by design that the <code>ngModel</code> doesn't handle objects or arrays. In the <a href="https://github.com/angular/angular.js/blob/890e939fcc0e059b66a4868853d82e23fbc68ac3/src/ng/directive/input.js#L1085-L1089" rel="nofollow">ngModelController code L1085-L1089)</a>, an <code>!==</code> operator is used to compare to see if the model value has changed. Since the <code>$modelValue</code> is always equal to the value (<code>xdata</code>) when <code>xdata[*]</code> changes, the <code>ngModelController</code> doesn't detect any changes from the model. However, you can workaround this by adding a watcher in the directive to invalidate the $modelValue whenever the watcher is called. <pre><code>scope.$watchCollection(attr.ngModel, function (newValue, oldValue) { ngModel.$modelValue = oldValue; }); </code></pre> Here is a Plunker that demonstrates this workaround: <a href="http://plnkr.co/edit/mUL577?p=preview" rel="nofollow">http://plnkr.co/edit/mUL577?p=preview</a> Another way would be to use the <code>ngChange</code> directive on the <code>input</code> fields to invalidate the model value. However, that introduces coupling between the directives. <hr> There is an issue on AngularJS that is tracking this: <a href="https://github.com/angular/angular.js/pull/2553" rel="nofollow">https://github.com/angular/angular.js/pull/2553</a> Also, the <code>split-array</code> directive here is basically doing what <a href="http://docs.angularjs.org/api/ng.directive%3angList" rel="nofollow"><code>ngList</code></a> is doing. However, <code>ngList</code> doesn't respect the separator on when rendering to view (<a href="https://github.com/angular/angular.js/pull/2561" rel="nofollow">https://github.com/angular/angular.js/pull/2561</a>).
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