AngularJS Form Validation

angularjs-form-validation.markdown

AngularJS Form Validation

A Pen by Steven on CodePen.

License.

index.html

<div ng-app="validationApp" ng-controller="mainController">
<div class="container">
<div class="row">  
   
<div class="col-sm-6">
    <!-- FORM ============ -->
  
    <form name="userForm" ng-submit="submitForm()" novalidate>

        <!-- NAME -->
        <div class="form-group" ng-class="{ 'has-error' : userForm.name.$invalid && !userForm.name.$pristine }">
            <label>Name</label>
            <input type="text" name="name" class="form-control" ng-model="user.name" required>
            <p ng-show="userForm.name.$invalid && !userForm.name.$pristine" class="help-block">You name is required.</p>
        </div>
      
        <!-- USERNAME -->
        <div class="form-group" ng-class="{ 'has-error' : userForm.username.$invalid && !userForm.username.$pristine }">
            <label>Username</label>
            <input type="text" name="username" class="form-control" ng-model="user.username" ng-minlength="3" ng-maxlength="8">
            <p ng-show="userForm.username.$error.minlength" class="help-block">Username is too short.</p>
            <p ng-show="userForm.username.$error.maxlength" class="help-block">Username is too long.</p>
        </div>
        
        <!-- EMAIL -->
        <div class="form-group" ng-class="{ 'has-error' : userForm.email.$invalid && !userForm.email.$pristine }">
            <label>Email</label>
            <input type="email" name="email" class="form-control" ng-model="user.email">
            <p ng-show="userForm.email.$invalid && !userForm.email.$pristine" class="help-block">Enter a valid email.</p>
        </div>
        
        <button type="submit" class="btn btn-primary" ng-disabled="userForm.$invalid">Submit</button>
        
    </form>
  </div>
  <div class="col-sm-6">
    <!-- VALIDATION TABLES ======== -->    
    <div class="row">
        <div class="col-xs-3">
            <h3>Form</h3>
            <table class="table table-bordered">
                <tbody>
                    <tr>
                        <td ng-class="{ success: userForm.$valid, danger: userForm.$invalid }">Valid</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.$pristine, danger: !userForm.$pristine }">Pristine</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.$dirty }">Dirty</td>
                    </tr>
                </tbody>
            </table>
        </div>
        <div class="col-xs-3">
            <h3>Name</h3>
            <table class="table table-bordered">
                <tbody>
                    <tr>
                        <td ng-class="{ success: userForm.name.$valid, danger: userForm.name.$invalid }">Valid</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.name.$pristine, danger: !userForm.name.$pristine }">Pristine</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.name.$dirty }">Dirty</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.name.$touched }">Touched</td>
                    </tr>
                </tbody>
            </table>
        </div>
        <div class="col-xs-3">
            <h3>Username</h3>
            <table class="table table-bordered">
                <tbody>
                    <tr>
                        <td ng-class="{ success: userForm.username.$valid, danger: userForm.username.$invalid }">Valid</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.username.$pristine, danger: !userForm.username.$pristine }">Pristine</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.username.$dirty }">Dirty</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.username.$touched }">Touched</td>
                    </tr>
                </tbody>
            </table>
        </div>
        <div class="col-xs-3">
            <h3>Email</h3>
            <table class="table table-bordered">
                <tbody>
                    <tr>
                        <td ng-class="{ success: userForm.email.$valid, danger: userForm.email.$invalid }">Valid</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.email.$pristine, danger: !userForm.email.$pristine }">Pristine</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.email.$dirty }">Dirty</td>
                    </tr>
                    <tr>
                        <td ng-class="{ success: userForm.email.$touched }">Touched</td>
                    </tr>
                </tbody>
            </table>
        </div>
    </div>
    
</div>
</div>
</div>

script.js

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

	// create angular controller
	validationApp.controller('mainController', function($scope) {

		// function to submit the form after all validation has occurred			
		$scope.submitForm = function() {

			// check to make sure the form is completely valid
			if ($scope.userForm.$valid) {
				alert('our form is amazing');
			}

		};

	});

scripts

<script src="//cdnjs.cloudflare.com/ajax/libs/angular.js/1.3.14/angular.min.js"></script>

style.css

body { padding-top:30px; }

styles

<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet" />