polifonic/twig-validator-extension

A Twig extension to validate objects inside a Twig template

Twig Validator Extension

A simple Twig extension that adds a valid filter to be used in twig templates., _(*1)

With this filter you can test if objects are valid inside a twig template and generate the appropriate markup based on the result., _(*2)

Installation

Add the package to your app's composer.json:, _(*3)

``` json "require": {, <sub>(*4)</sub>

    "polifonic/twig-validator-extension": "^1.0",
}

### As a Twig Extension

Create an instance of `TwigValidatorExtension` and add it to the Twig environment just like any other twig extension.

The `TwigValidatorExtension` constructor needs to be passed a validator (an instance of `Symfony\Component\Validator\Validator\ValidatorInterface`).

``` php
use Polifonic\Twig\Extension\Validator\TwigValidatorExtension;

$validator = ...;

$twig = new Twig_Environment($loader);

$twig->addExtension(new TwigValidatorExtension($validator));

As a Symfony bundle

The package includes a Symfony bundle named TwigValidatorBundle. This bundle will automatically add the TwigValidatorExtension to twig., <sub>(*5)</sub>

Enable the TwigValidatorBundle symfony bundle by adding it to your app's kernel:, <sub>(*6)</sub>

``` php, <sub>(*7)</sub>

app/AppKernel.php

public function regsiterBundles() { $bundles = array( ... new Polifonic\Twig\Extension\Validator\Symfony\TwigValidatorBundle(), ); }, <sub>(*8)</sub>

Usage
-----

``` twig
{% if object|valid %}...{% endif %}

With validation groups:, <sub>(*9)</sub>

``` twig {% if object|valid([ "group1", "group2" ]) %}...{% endif %}, <sub>(*10)</sub>

```, <sub>(*11)</sub>