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angularjsformsvalidationdynamicform

How to set a dynamic form fields to dirty or touched with angular?


I have a dynamic form which is generated by data received from some api, you can see and example of it here, received data is like this:

$scope.users = [
      {
        name: 'one',
        email: 'one@one.com'
      },
      {
        name: '',
        email: 'two@two.com'
      },
      {
        name: '',
        email: 'three@three.com'
      }
    ];

I create a dynamic form for these items, but I have a problem that my validation messages are not shown correctly, they are similar to this one:

<form name="usersForm">
        <div ng-form="subForm"  ng-repeat="user in users">

          <input name="name" type="text" ng-model="user.name" required />
          <p ng-if="subForm.name.$invalid && subForm.name.$touched">
            name is required
          </p>

          <input name="email" type="email" ng-model="user.email" required />
          <p ng-if="subForm.email.$invalid && subForm.email.$touched">
            email is required
          </p>

        </div>
     </form>

as you can see in plunkr, I have used two approaches for doing this , one is using ng-form and the other using interpolation in form input names:

<form name="usersForm2">
        <div  ng-repeat="user in users track by $index">

          <input name="name{{$index}}" type="text" ng-model="user.name" required />
          <p ng-if="usersForm2['name' + $index].$invalid && usersForm2['name' + $index].$touched">
            name is required
          </p>

          <input name="email" type="email" ng-model="user.email" required />
          <p ng-if="usersForm2['email' + $index].$invalid && usersForm2['email' + $index].$touched">
            email is required
          </p>

        </div>
     </form>

How can I show my validation messages to user(when the form is loaded or rendered)?


Solution

  • see the updated plunker or run the below code

    var app = angular.module('plunker', []);
    
    app.controller('MainCtrl', function($scope) {
     
      $scope.users = [
          {
            name: 'one',
            email: 'one@one.com'
          },
          {
            name: '',
            email: 'two@two.com'
          },
          {
            name: '',
            email: 'three@three.com'
          }
        ];
        
        
     
    });
    <!DOCTYPE html>
    <html ng-app="plunker">
    
      <head>
        <meta charset="utf-8" />
        <title>AngularJS Plunker</title>
        <script>document.write('<base href="' + document.location + '" />');</script>
        <link href="style.css" rel="stylesheet" />
        <script src="https://code.angularjs.org/1.5.4/angular.js"></script>
        <!-- By setting the version to snapshot (available for all modules), you can test with the latest master version -->
        <!--<script src="https://code.angularjs.org/snapshot/angular.js"></script>-->
        <script src="app.js"></script>
      </head>
    
      <body ng-controller="MainCtrl">
          <div>
            First approach using ng-form
          </div>
        
         <form name="usersForm">
            <div ng-form="subForm"  ng-repeat="user in users">
             
              <input name="name" type="text" ng-model="user.name" required />
              <p ng-if="subForm.name.$invalid && subForm.name.$error">
                name is required
              </p>
              
              <input name="email" type="email" ng-model="user.email" required />
              <p ng-if="subForm.email.$invalid && subForm.email.$error">
                email is required
              </p>
              
            </div>
         </form>
         
         <div>
           second approach using interpolation
         </div>
         
          <form name="usersForm2">
            <div  ng-repeat="user in users track by $index">
             
              <input name="name{{$index}}" type="text" ng-model="user.name" required />
              <p ng-if="usersForm2['name' + $index].$invalid && usersForm2['name' + $index].$error">
                name is required
              </p>
              
              <input name="email" type="email" ng-model="user.email" required />
              <p ng-if="usersForm2['email' + $index].$invalid && usersForm2['email' + $index].$error">
                email is required
              </p>
              
            </div>
         </form>
         
      </body>
    </html>