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POAngularjs two way data-binding for form data POST
 

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  1. POAngularjs two way data-binding for form data POST
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    <p>Using angularjs, I am trying to populate a form dynamically and then submit the forms data via POST to a server.</p> <p>I created a data variable in my controller (to POST later)</p> <pre><code>$scope.data = {}; </code></pre> <p>Then in my html, to create the elements in the form</p> <pre><code>&lt;div ng-repeat="(name, attributes) in fields"&gt; &lt;element myVar="data.{{name}}" name="{{name}}" attributes="{{attributes}}" &gt;&lt;/element&gt; &lt;/div&gt; </code></pre> <p>Where fields looks like</p> <pre><code>{"agency":{"name_displayed":"Agency","size":"30","tag":"input","type":"text"},"department":{"name_displayed":"Department","size":"30","tag":"input","type":"text"},"description":{"cols":"50","name_displayed":"Description","rows":"4","tag":"textarea"}} </code></pre> <p>The element directive then looks like this, but is throwing errors</p> <pre><code>demoApp.directive("element", function() { var template = function(name, attributes, results) { var templateString = "&lt;" + attributes.tag; for (var attribute in attributes) { if (attribute != "name_displayed" &amp;&amp; attribute != "tag" &amp;&amp; attribute != "options") { templateString += " " + attribute + '="' + attributes[attribute] + '"'; } } if (attributes.tag == "input") {templateString += ' value="' + results + '"';} templateString += ' name="' + name + '"&gt;'; templateString += ' ng-model="myVar"&gt;'; if (attributes.tag == "select") { for (var i=0; i&lt;attributes.options.length; i++) { templateString += "&lt;option value=" + attributes.options[i] + ((attributes.options[i] == results)? " selected" : "") + "&gt;" + attributes.options[i] + "&lt;/option&gt;"; } } if (attributes.tag == "textarea") { templateString += results; } templateString += "&lt;/" + attributes.tag + "&gt;"; var toReturn = attributes.name_displayed + ": " + templateString; return toReturn; }; return { restrict: "E", scope: { myVar: '=' }, link: function(scope, element, attrs) { var attributes = angular.fromJson(attrs.attributes); var tpl = template(attrs.name, attributes, attrs.results); element.html(tpl); } }; }); </code></pre> <p>Without the myVar attribute and scope object in the directive, this works fine (to display the form). Am I missing something about the two-way data binding here? Or is there a better way to do this? - Thanks</p>
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