Federico Piazza Federico Piazza - 1 month ago 14
Javascript Question

How to generates dynamically ng-model="my_{{$index}}" with ng-repeat in AngularJS?

I would like to ask you if you can give me a hand on this.

I have created a jsfiddle with my problem here. I need to generate dynamically some inputs with ng-model in a ng-repeater using the way ng-model="my_{{$index}}".

In jsfiddle you can see that everything it's working fine until I try to generate it dynamically.

The html would be:

<div ng-app>
<div ng-controller="MainCtrl">
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr>
<td>
<select ng-model="selectedQuery"
ng-options="q.name for q in queryList" >
<option title="---Select Query---" value="">---Select Query---</option>
</select>
</td>
</tr>
<tr ng-repeat="param in parameters">
<td>{{param}}:</td>
<td><input type="text" ng-model="field_X" />field_{{$index}}</td>
</tr>
</table>
<div>
<div>


And the javascript...

function MainCtrl($scope) {
$scope.queryList = [
{ name: 'Check Users', fields: [ "Name", "Id"] },
{ name: 'Audit Report', fields: [] },
{ name: 'Bounce Back Report', fields: [ "Date"] }
];

$scope.$watch('selectedQuery', function (newVal, oldVal) {
$scope.parameters = $scope.selectedQuery.fields;
});
}


Can you give me any idea?

Thanks a lot.

Answer

Does it solve your problem?

function MainCtrl($scope) {
     $scope.queryList = [
        { name: 'Check Users', fields: [ "Name", "Id"] },
        { name: 'Audit Report', fields: [] },
        { name: 'Bounce Back Report', fields: [ "Date"] } 
      ];
    $scope.models = {};
    $scope.$watch('selectedQuery', function (newVal, oldVal) {
        if ($scope.selectedQuery) {
            $scope.parameters = $scope.selectedQuery.fields;
        }
    });
}

And in your controller:

  <tr ng-repeat="param in parameters">
    <td>{{param}}:</td>
    <td><input type="text" ng-model="models[param] " />field_{{$index}}</td>
  </tr>

Fiddle

Comments