Dynamic form name validation in Angular is crucial for ensuring the accuracy and

When it comes to validating a form in Angular, I usually use the ng-submit directive like this:

<form name="formName" ng-submit="formName.$valid && submitForm()"></form>

This method works well for forms with predefined names that I set during form creation. However, I am currently facing a situation where I need to dynamically generate multiple forms based on a list of objects. Each form has its name generated dynamically.

So how can I validate these dynamically named forms before executing the submitForm() function?

You can check out a simplified version of the issue in this jsfiddle: http://jsfiddle.net/flyingL123/ub6wLewc/1/

The main question is, how do I access the dynamically generated form name for validation? Here is the code snippet from the fiddle:

var app = angular.module('app', []);

app.controller("AppController", ['$scope', function($scope) {
  $scope.forms = [{
    id: 1,
    value: "val1"
  }, {
    id: 2,
    value: "val2"
  }, {
    id: 3,
    value: "val3"
  }];

  $scope.submitForm = function() {
    alert('submitted');
  }
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.1/angular.min.js"></script>
<div id="app" ng-app="app" ng-controller="AppController">
  <div class="formWrapper" ng-repeat="form in forms">
    <form name="{{ 'form' + form.id }}" ng-submit="submitForm()" novalidate>
      <input ng-model="form.value" required />
      <button type="submit">Submit</button>
    </form>
  </div>
</div>

Answer №1

In order to access the scope within your templates, you can utilize this.

{{this.foo === foo}} <!-- This comparison will always result in "true" -->

By using this[myDynamicFormName], you can easily retrieve the form:

<form name="{{'form' + form.id}}" ng-submit="this['form' + form.id].$valid && submitForm()"></form>

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