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POAngularJS data usage pattern
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  1. POAngularJS data usage pattern
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    copied!<p>I am new to angularjs and in my application I am making a REST API call and the returned response is stored as a model object. For my view, I have created a seperate view model object since the response from the API cannot be as such used in the UI.</p> <p>Is this a right approach? Note that I am using two different models -> One gets data from the server and other is used as UI backing model. This is similar to a backing bean and DAO objects in Java frameworks.</p> <p>Please advise whether this approach is fine or should it be changed. If so how?</p> <p><strong>Update</strong> Have illustrated the issue in <a href="http://jsfiddle.net/LGEKX/" rel="nofollow">http://jsfiddle.net/LGEKX/</a></p> <pre><code>function mycontroller($scope){ //The view model is populated by a seperate method var viewmodel = populateViewModel(); $scope.viewmodel = viewmodel; } function populateViewModel(){ //Call service to update local model var backendModel = serviceCall(); //Invoke conversion service var converteModel = convertBackEndModel(backendModel); } function serviceCall(){ //Service method calls server side API and the data returned is returned in success callback $http({method: 'GET', url: '/someUrl'}). success(function(data, status, headers, config) { return data; }). error(function(data, status, headers, config) { ... }); } function convertBackEndModel(data){ //This takes the data returned from API call as input and creates a view model //which will be used for angularjs view (in HTML) var viewModel = {}; viewModel.name = backendModel.backendName; //Though this is simple, actual code has lots of logic which basically converts one JSON structure to another } </code></pre> <p>and in my HTML</p> <pre><code>&lt;div ng-app&gt; &lt;div ng-controller="mycontroller"&gt; &lt;!-- Binding to viewmodel from the HTML--&gt; &lt;div ng-model="viewmodel.name"&gt;&lt;/div&gt; &lt;/div&gt; </code></pre> <p></p>
 

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