angular-form-validator
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Angular validation directive with validation rules and error messages.
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# angular-form-validator
> Angular validation directive with many validation rules and custom error messages.
> Validation rules are simmilar to mongoose validation rules!
## 1. Installation
`npm install angular-form-validator`
## 2. Description
This is angular module which gives you angular directive for HTML form validation.
- easy to integrate in your existing angular 1.4+ project
- many default validation rules inspired by [mongoose validation](http://mongoosejs.com/docs/validation.html)
- validation on almost all [jQuery events](https://api.jquery.com/category/events/): 'change', 'keyup', 'click', 'blur' ...etc
- developer can create custom validation rules
- developer can define custom error messages
- not dependant on any CSS framework (Bootstrap, Foundation, Material, ...etc) or any JS library like jQuery
- 100% native angular
It's not only validator but corrector. For example date will be automatically converted to
*Sat Dec 01 2001 00:00:00 GMT+0100 (CET)* format.
DEMO: [https://smikodanic.github.io/angular-form-validator/](https://smikodanic.github.io/angular-form-validator/)<br>
DEMO CODE: [https://github.com/smikodanic/angular-form-validator/blob/master/index.html](https://github.com/smikodanic/angular-form-validator/blob/master/index.html)
## 3. Integration
### If you use browserify in your angular project
```javascript
require('angular-form-validator');
var clientApp = angular.module('clientApp', [
'ngFormValidator'
]);
```
### If you use compiled version (/dist/ folder) include it in HTML file
```html
<script src="... /angular-form-validator/dist/js/ngFormValidator.js"></script>
```
##### Also don't forget to include CSS file.
```html
<head>
<link rel="stylesheet" type="text/css" href="./dist/css/ngFormValidator.css">
</head>
```
## 4. Angular Directive
Directive is **ngformValidator** and must be applied as a tag attribute.
Config (rules and error messages) are defined inside **config** object.
```html
<input type="text" list="countrylist" class="form-control"
ng-model="firstName"
ngform-validator="{type: 'number', min: ['Number must be min 45', 45]}"
ngform-validator-options="{validateOn: 'keyup'}">
<p class="help-block" ng-cloak>{{errMsg.firstName}}</p> <!-- error output -->
```
## 5. Validation rules
#### TYPE VALIDATORS
- **string** - accepts any string value
- **number** - accepts integer or float numbers (12 , 12.23, 1.2e-21)
- **date** - accept valid date formats mm/dd/yy , mm/d/yyy hh:mm:ss , m.d.yy , mm.dd.hh and converts it automatically
- **boolean** - Any string or 'true' converts to boolean *true*. String 'false' converts to boolean *false*. (This is corrector, not validator!)
#### MIN, MAX, BETWEEN
- **min** - If type:'number' then it will compare two numbers (input >= number). If type:'string' will validate number of characters.
- **max** - If type:'number' then it will compare two numbers (input <= number). If type:'string' will validate number of characters.
- **between** - If type:'number' (number1 <= input <= number2). If type:'string' will validate number of characters.
#### STRING
- **alpha** - letters only
- **alphanumeric** - letters with numbers only (special characters are not allowed)
- **lowercase** - letters must be lowercase, if not it will be converted automatically
- **uppercase** - letters must be uppercase, if not it will be converted automatically
- **ucfirst** - capitalize first letter
#### NUMBER
- **int** - check if number is integer (52) and if not it will make correction
- **float** - check if number is float (52.123) and if not it will make correction
#### MISC
- **email** - Validate inserted email (john@site.co)
- **url** - check if input is valid URL (http://... or https://...)
- **tel** - check if input is valid phone number ((123) 456-7890, +(123) 456-7890, 123-456-7890, 123.456.7890, 1234567890, +31636363634, 075-63546725)
- **sameAs** - compare two input fields (for example 'Password' and 'Repeat password')
- **emptySpaces** - clear empty spaces in a string (validator and corrector)
- **regex** - test input against regular expression
- **enum** - limit input string to offered values
- **price** - must be Number (type:'Number'), round number to 2 decimals. This is corrector, not validator.
*(You are wellcome to make pull request and add extra validator functions.)*
## 6. Custom validator
Beside built-in validators you can use custom validators.
Use attribute **ngform-validator-custom** and define function inside it.
```html
<div ng-class="{'form-group': true, 'has-error': errMsg.cstm}">
<label for="cstm" class="col-sm-5 control-label">3+ chars <small>(string, validate onKeyup)</small></label>
<div class="col-sm-5">
<input type="text" id="cstm" class="form-control"
ng-model="cstm"
ngform-validator="{type: 'string'}"
ngform-validator-custom="function (input) {
var err = (input.length >= 3) ? '' : 'Insert 3+ characters!';
return err;
}"
ngform-validator-options="{validateOn: 'keyup'}">
<p class="help-block" ng-cloak>{{errMsg.cstm}}</p>
</div>
</div>
```
## 7. Options
```html
ngform-validator-options="{validateOn: 'keyup'}"
```
- ***validateOn:*** 'change' | 'keyup' (or any other [jQuery event](https://api.jquery.com/category/events/) ) defines on which JS event field validation will take effect
*Notice: 'required' validation is onBlur by default and can't be changed.*
## 8. Disabling form fields and buttons
Submit button or input field can be disable on specific form field errors.
```html
//submit button is disable only when 'eml' or 'maxstr' have bad validations. Use ng-disabled dirctive.
<button type="button" class="btn btn-primary" ng-click="mySubmit()" ng-disabled="errMsg.eml || errMsg.maxstr">Submit</button>
```
## 9. Reseting form
To reset whole form and clear all errors use **ngform-validator-reset** directive. Reset will be activted on click.
```html
<button type="button" class="btn btn-warning" ngform-validator-reset>Reset</button>
```
## 10. Multilevel scope objects
Scope object can have up to 5 levels, like
**ng-model="europe.company.employers.developers.name"** .
DEMO: [https://smikodanic.github.io/angular-form-validator/index2.html](https://smikodanic.github.io/angular-form-validator/index2.html)<br>
DEMO CODE: [https://github.com/smikodanic/angular-form-validator/blob/master/index2.html](https://github.com/smikodanic/angular-form-validator/blob/master/index2.html)
```html
//code example
<input type="text" size="21"
ng-model="eu.germany.company.employer.email"
ngform-validator="{type: 'string', email: 'Email is not valid.'}"
ngform-validator-options="{validateOn: 'keyup'}">
<span style="color:Maroon;font-size:smaller" ng-cloak>{{errMsg.eu.germany.company.employer.email}}</span>
```
## 11. Licence
*Copyright (c) 2016 Saša Mikodanić*
Licensed under [MIT](https://github.com/smikodanic/angular-form-validator/blob/master/LICENSE) .
*(Freely you received, freely give. , Mt10:8)*