ExeuMiscBundle is a bundle that should provide some usefull features for your Symfony 2 application.
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README.md
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README.md

Exeu Misc Bundle

Build Status

Travis:

Build Status

Jenkins:

Build Status

Installation

Symfony 2.0.x

Add the following lines in your deps file:

[ExeuMiscBundle]
    git=git://github.com/Exeu/ExeuMiscBundle.git
    target=bundles/Exeu/MiscBundle

Modify the autoload.php:

<?php

// app/autoload.php
$loader->registerNamespaces(array(
    // ...
    'Exeu'              => __DIR__.'/../vendor/bundles',
    // ...
));

Now run the vendors script:

$ php bin/vendors install

Symfony 2.1.x

Add ExeuMiscBundle in your composer.json:

{
    "require": {
        "exeu/misc-bundle": "dev-master"
    }
}

Now tell composer to download the bundle by running the command:

$ php composer.phar update exeu/misc-bundle

Dont forget to activate the bundle in your AppKernel:

<?php

// in AppKernel::registerBundles()
$bundles = array(
    // ...
    new Exeu\MiscBundle\ExeuMiscBundle(),
    // ...
);

Usage

Twig

asset_url

To get an URL of your asset you can user the following twig function:

<img src="{{ asset_url('bundles/acmebundle/images/image.jpg') }}">

You also can setup an statichost in your config.yml:

# app/config/config.yml

exeu_misc:
    twig:
        staticHost: http://mystatic.image.host.com

To use this statichost URL call the asset_url function with the second parameter set to true:

<img src="{{ asset_url('bundles/acmebundle/images/image.jpg', true) }}">

This could be usefull if you generate templates with the CLI.

Doctrine

RAND()

With this bundle you can activate the MySQL RAND() Function.

You have to add the following to your config.yml:

# app/config/config.yml

doctrine:

    orm:
        # ...
        entity_managers:
            default:
                auto_mapping: true
                dql:
                    numeric_functions:
                        RAND: Exeu\MiscBundle\Doctrine\Extension\Rand

(See: Registering Custom DQL Functions )

If you have done this you can use the RAND() Function in your DQL Select Part:

<?php
// ...
$em = $this->getDoctrine()->getEntityManager();
$query = $em->createQuery("SELECT p, RAND() as c FROM AcmeTestBundle:User p ORDER BY c");
$randomUsers = $query->getResult();
// ...

Tableprefix

To set up a tableprefix wich affects all your entitys you can use the provided tableprefix class.

The only thing you have to do is to enable the service in your config file:

# app/config/config.yml

services:
    exeu.misc.doctrine.tableprefix:
        class: Exeu\MiscBundle\Doctrine\TablePrefix
        arguments: ["myprefix_"]
        public: false
        tags:
          - { name: doctrine.event_subscriber }

Now if you are creating your schema, all tables will be prefixed with "myprefix_".

Validation

ImageDimension

To validate the dimension of an Image you can use the ImageDimension-Validator provided with this bundle:

<?php
// ...
use Exeu\MiscBundle\Validator\ImageDimension;
// ...
/**
 * @ORM\Entity
 */
class Test
{
    // ...

    /**
     * @ImageDimension(minDimension={422, 422}, maxDimension={500, 100})
     */
    public $file;

The $file property either can be a string or an object.

<?php
// ...
public function buildForm(FormBuilderInterface $builder, array $options)
{
    // an object example
    $builder->add('file', 'file');

    // an string example
    $builder->add('file', 'text');
}

Annotation description:

<?php
/**
 * @ImageDimension(minDimension={422, 422}, maxDimension={500, 100}, minMessage="The image is to small. At min: %width%x%height%!", maxMessage="The image is to big. At max: %width%x%height%!", invalidFileMessage="The file you provided is no valid image!")
 */
public $file;

minDimension -> an array of width an height in px

maxDimension -> an array of width an height in px

minMessage -> The message that should be displayed when the image is to small (placeholder %width%, %height%)

maxMessage -> The message that should be displayed when the image is to big (placeholder %width%, %height%)

invalidFileMessage -> The message that shold be displayed when the file is no valid image

If you only provide either minDimension or maxDimension your image will validate only against this dimension

Combine it with the Symfony ImageValidator

<?php
// ...
/**
 * @Assert\Image(maxSize="1M", mimeTypes={"image/gif", "image/jpeg", "image/png"})
 * @ImageDimension(minDimension={422, 422})
 */
private $file;
// ...

Cache

Sometimes it is usefull to use a PHPCache like APC to store some variables or complex objects directly in the shared memory of the server to get very fast access.

For this reason there is a so called cachmanager provided in this bundle.

To activate this cachemanager you have to enable it in your config:

# app/config/config.yml

exeu_misc:
    cache: ~

Now you can access the cachemanager for example in your controller:

<?php
// ...
$cacheManager = $this->get('exeu.extra.cache.manager');
$cacheManager = $this->get('ex.cache'); // Shortcut

$data = array('foo' => 'bar');
$cacheManager->write('my_key', $data);

// ...

$data = $cacheManager->read('my_key');

// ...

$cacheManager->delete('my_key');
// ...

For full information about the functions you can call see Exeu\MiscBundle\Cache\CacheManager

By default the cachmanager uses a APC cachedriver: Exeu\MiscBundle\Cache\Driver\APC

This class can be changed in your config:

# app/config/config.yml

exeu_misc:
    cache:
      driver_class: Exeu\MiscBundle\Cache\Driver\xCache

You can implement your own cachedriver by creating a class which implements Exeu\MiscBundle\Cache\Driver\DriverInterface

# app/config/config.yml

exeu_misc:
    cache:
      driver_class: Acme\DemoBundle\MyCache\Driver\FooDriver