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Awesome Open Source

Angular Validate

Bower GitHub license

Painless form validation for AngularJS. Powered by the jQuery Validation Plugin.

DEMO

Table of contents

  1. Installation
  2. Usage
  3. Built-in validation rules
  4. Configuration

Installation

Download Angular Validate:

  • With NPM:
$ npm install jpkleemans-angular-validate
  • With Bower:
$ bower install jpkleemans-angular-validate
  • With Git:
$ git clone https://github.com/jpkleemans/angular-validate.git

When using one of the last two methods make sure you also download the latest release of the jQuery Validation Plugin.

Include both jquery.validate.min.js and angular-validate.min.js in your HTML page:

<!-- jQuery scripts -->
<script src="path/to/jquery.min.js"></script>
<script src="path/to/jquery.validate.min.js"></script>

<!-- Angular scripts -->
<script src="path/to/angular.min.js"></script>
<script src="path/to/angular-validate.min.js"></script>

Inject the ngValidate module as a dependency into your Angular application:

angular.module('myApp', ['ngValidate']);

Usage

Add the ng-validate directive to your form and pass the validation options as value:

<form name="registerform" ng-submit="register(registerform)" ng-validate="validationOptions">
    <input type="email" name="email">
    <input type="password" name="password">
</form>

Set validation options

Then set the validation options in your controller:

$scope.validationOptions = {
    rules: {
        email: {
            required: true,
            email: true
        },
        password: {
            required: true,
            minlength: 6
        }
    },
    messages: {
        email: {
            required: "We need your email address to contact you",
            email: "Your email address must be in the format of [email protected]"
        },
        password: {
            required: "You must enter a password",
            minlength: "Your password must have a minimum length of 6 characters"
        }
    }
}

Or (for simple forms) insert the options directly without using a controller:

<form name="simpleform" ng-submit="register(simpleform)" ng-validate="{rules: {name: "required"}}">

For all available options, see: http://jqueryvalidation.org/validate#validate-options

Check form validity

Now you can validate the form by calling validate() on the form instance:

$scope.register = function (form) {
    if(form.validate()) {
        // Form is valid!
    }
}

You can also pass your validation options as the first parameter of validate().

Get number of invalid fields

$window.alert("There are " + form.numberOfInvalids() + " invalid fields.");

Built-in validation rules

A set of standard validation rules is provided by the jQuery Validation Plugin:

  • required – Makes the element required.
  • remote – Requests a resource to check the element for validity.
  • minlength – Makes the element require a given minimum length.
  • maxlength – Makes the element require a given maxmimum length.
  • rangelength – Makes the element require a given value range.
  • min – Makes the element require a given minimum.
  • max – Makes the element require a given maximum.
  • range – Makes the element require a given value range.
  • email – Makes the element require a valid email.
  • url – Makes the element require a valid url.
  • date – Makes the element require a date.
  • dateISO – Makes the element require an ISO date.
  • number – Makes the element require a decimal number.
  • digits – Makes the element require digits only.
  • creditcard – Makes the element require a credit card number.
  • equalTo – Requires the element to be the same as another one.

More info: http://jqueryvalidation.org/documentation/#link-list-of-built-in-validation-methods

Configuration

Angular Validate ships with a $validatorProvider, that you can use to configure default validation options and custom validation rules.

Default validation options

angular.module('myApp')
    .config(function ($validatorProvider) {
        $validatorProvider.setDefaults({
            errorElement: 'span',
            errorClass: 'help-block'
        });
    });

More info: http://jqueryvalidation.org/jQuery.validator.setDefaults

Custom validation rules

angular.module('myApp')
    .config(function ($validatorProvider) {
        $validatorProvider.addMethod("domain", function (value, element) {
            return this.optional(element) || /^http:\/\/mydomain.com/.test(value);
        }, "Please specify the correct domain for your documents");
    });

More info: http://jqueryvalidation.org/jQuery.validator.addMethod

Modify default error messages

angular.module('myApp')
    .config(function ($validatorProvider) {
        $validatorProvider.setDefaultMessages({
            required: "This field is required.",
            remote: "Please fix this field.",
            email: "Please enter a valid email address.",
            url: "Please enter a valid URL.",
            date: "Please enter a valid date.",
            dateISO: "Please enter a valid date (ISO).",
            number: "Please enter a valid number.",
            digits: "Please enter only digits.",
            creditcard: "Please enter a valid credit card number.",
            equalTo: "Please enter the same value again.",
            accept: "Please enter a value with a valid extension.",
            maxlength: $validatorProvider.format("Please enter no more than {0} characters."),
            minlength: $validatorProvider.format("Please enter at least {0} characters."),
            rangelength: $validatorProvider.format("Please enter a value between {0} and {1} characters long."),
            range: $validatorProvider.format("Please enter a value between {0} and {1}."),
            max: $validatorProvider.format("Please enter a value less than or equal to {0}."),
            min: $validatorProvider.format("Please enter a value greater than or equal to {0}.")
        });
    });

More info: http://jqueryvalidation.org/jQuery.validator.format


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