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@Problematic
Created May 20, 2011 23:05
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Working example of Symfony2 entities with Class Table Inheritance
<?php
namespace UP\SocialBundle\Entity;
/**
* UP\SocialBundle\Entity\SocialBase
* @orm:Entity
* @orm:HasLifecycleCallbacks
* @orm:InheritanceType("JOINED")
* @orm:DiscriminatorColumn(name="class_name", type="string")
* @orm:DiscriminatorMap({
* "UP\SocialBundle\Entity\Friendship" = "UP\SocialBundle\Entity\Friendship",
* "UP\SocialBundle\Entity\SocialFeedItem" = "UP\SocialBundle\Entity\SocialFeedItem"
* })
*/
abstract class SocialBase {
/**
* @orm:Id
* @orm:Column(type="integer")
* @orm:GeneratedValue
*/
protected $id;
/**
* @orm:Column(type="datetime")
*/
protected $created_at;
/**
* @orm:Column(type="datetime")
*/
protected $updated_at;
/**
* @orm:ManyToMany(targetEntity="UP\SocialBundle\Entity\Tag")
* @orm:JoinTable(name="social_tags",
* joinColumns={@orm:JoinColumn(name="social_id", referencedColumnName="id")},
* inverseJoinColumns={@orm:JoinColumn(name="tag_id", referencedColumnName="id")}
* )
*/
protected $tags;
/**
* @orm:OneToMany(targetEntity="UP\SocialBundle\Entity\Comment", mappedBy="root")
*/
protected $comments;
public function __construct()
{
$this->tags = new \Doctrine\Common\Collections\ArrayCollection();
}
public function getId()
{
return $this->id;
}
public function addTag(\UP\SocialBundle\Entity\Tag $tag)
{
$this->tags[] = $tag;
}
public function getTags()
{
return $this->tags;
}
public function addComment(\UP\SocialBundle\Entity\Comment $comment)
{
$this->comments[] = $comment;
}
public function getComments()
{
return $this->comments;
}
public function setCreatedAt(\DateTime $created_at) {
$this->created_at = $created_at;
}
public function getCreatedAt() {
return $this->created_at;
}
public function setUpdatedAt(\DateTime $updated_at) {
$this->updated_at = $updated_at;
}
public function getUpdatedAt() {
return $this->updated_at;
}
/**
* @orm:prePersist
*/
public function prePersist() {
$this->setCreatedAt(new \DateTime());
$this->setUpdatedAt(new \DateTime());
}
/**
* @orm:preUpdate
*/
public function preUpdate() {
$this->setUpdatedAt(new \DateTime());
}
}
<?php
namespace UP\SocialBundle\Entity;
use UP\SocialBundle\Entity\SocialBase;
/**
* UP\SocialBundle\Entity\SocialFeedItem
* @orm:Entity
*/
class SocialFeedItem extends SocialBase
{
/**
* @orm:Column(type="string", nullable="true")
*/
protected $user_message;
/**
* @orm:Column(type="string")
*/
protected $system_message;
/**
* @orm:ManyToOne(targetEntity="UP\UserBundle\Entity\User", inversedBy="id")
*/
protected $source_user;
/**
* @orm:ManyToOne(targetEntity="UP\UserBundle\Entity\User", inversedBy="id")
*/
protected $target_user;
public function setUserMessage($userMessage)
{
$this->user_message = $userMessage;
}
public function getUserMessage()
{
return $this->user_message;
}
public function setSystemMessage($systemMessage)
{
$this->system_message = $systemMessage;
}
public function getSystemMessage()
{
return $this->system_message;
}
public function setSourceUser(\UP\UserBundle\Entity\User $sourceUser)
{
$this->source_user = $sourceUser;
}
public function getSourceUser()
{
return $this->source_user;
}
public function setTargetUser(\UP\UserBundle\Entity\User $targetUser = null)
{
$this->target_user = $targetUser;
}
public function getTargetUser()
{
return $this->target_user;
}
}
@s-o-r-o-u-s-h
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+1

@MlleDelphine
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MlleDelphine commented Jul 3, 2017

Thanks ! But, what about construction of form ?... That's the main issue arround "Class Table Inheritance"

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