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Symfony2 how to add a response header for each request

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JsonResponseListener.php

<?php
namespace MyCorp\MyBundle\Listener;
 
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
 
class JsonResponseListener
{
    public function onKernelResponse(FilterResponseEvent $event)
    {   
        $request = $event->getRequest();
 
        if(strpos($request->getHost(), 'api.') === false) {
            return;
        }                                                                                                                                                                                                                         
        $event->getResponse()->headers->set('Access-Control-Allow-Headers', 'origin, content-type, accept');
        $event->getResponse()->headers->set('Access-Control-Allow-Origin', '*');
        $event->getResponse()->headers->set('Access-Control-Allow-Methods', 'POST, GET, PUT, DELETE OPTIONS');
    }   
}

services.xml

<?xml version="1.0" ?>
 
<container xmlns="http://symfony.com/schema/dic/services"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://symfony.com/schema/dic/services http://symfony.com/schema/dic/services/services-1.0.xsd">
 
    <services>
        <service id="mycorp.filter_response_listener" class="MyCorp\MyBundle\Listener\JsonResponseListener">
            <tag name="kernel.event_listener" event="kernel.response" method="onKernelResponse" />
        </service>
    </services>
</container>

doctrine2 yaml mapping example 

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Doctrine\Tests\ORM\Mapping\User:
  type: entity
  table: cms_users
  namedQueries:
    all: SELECT u FROM __CLASS__ u
  id:
    id:
      type: integer
      generator:
        strategy: AUTO
      sequenceGenerator:
        sequenceName: tablename_seq
        allocationSize: 100
        initialValue: 1
  fields:
    name:
      type: string
      length: 50
      nullable: true
      unique: true
    email:
      type: string
      column: user_email
      columnDefinition: CHAR(32) NOT NULL
  oneToOne:
    address:
      targetEntity: Address
      inversedBy: user
      joinColumn:
        name: address_id
        referencedColumnName: id
        onDelete: CASCADE
        onUpdate: CASCADE
      cascade: [ remove ]
  oneToMany:
    phonenumbers:
      targetEntity: Phonenumber
      orphanRemoval: true
      mappedBy: user
      orderBy:
        number: ASC
      cascade: [ persist ]
  manyToMany:
    groups:
      targetEntity: Group
      joinTable:
        name: cms_users_groups
        joinColumns:
          user_id:
            referencedColumnName: id
            nullable: false
            unique: false
        inverseJoinColumns:
          group_id:
            referencedColumnName: id
            columnDefinition: INT NULL
      cascade:
        - all
  lifecycleCallbacks:
    prePersist: [ doStuffOnPrePersist, doOtherStuffOnPrePersistToo ]
    postPersist: [ doStuffOnPostPersist ]
  uniqueConstraints:
    search_idx:
      columns: name,user_email
  indexes:
    name_idx:
      columns: name
    0:
      columns: user_email

Doctrine Field Types Reference

Strings

string (used for shorter strings)
text (used for larger strings)
Numbers
integer
smallint
bigint
decimal
float

Dates and Times (use a DateTime object for these fields in PHP)

date
time
datetime

Other Types

boolean
object (serialized and stored in a CLOB field)
array (serialized and stored in a CLOB field)

Symfony2 memo 

php app/console generate:bundle --namespace=Gallery/AlbumBundle --format=yml
 
php app/console doctrine:database:create
 
php app/console doctrine:generate:entity --entity="GalleryAlbumBundle:Album" --fields="name:string(255) description:text"
 
php app/console doctrine:generate:entities Gallery
php app/console doctrine:generate:entities GalleryAlbumBundle
php app/console doctrine:generate:entities Gallery/AlbumBundle/Entity/Album
 
php app/console doctrine:schema:update --force