How to extend entity with Inheritance Mapping

Hi friends,

I have a Contact class in core code.
Now I need create many types of Contact with some specific functions for each type.
I decided using Class Table Inheritance. But I cannot change the Contact class, so that I decide make a class extend.

I extended the bundle, and now I dont know how to extend the entity class to implement Class Table Inheritance (maybe must use the Migration but I dont know how to do that).

Do you have any idea?
Thanks,

Topic

[Mike KudelyaParticipant]

Hi,

Are use sure, that you should use class table inheritance ? Can you tell me more about ‘specific functions for each type’ ? We don’t recommended extend Contact entity, but you can do this on your own risk. Also this approach has some performance impact. But if you want use it just for testing, add this to Contact entity:

PHP

* @ORM\InheritanceType("JOINED") * @ORM\DiscriminatorColumn(name="discr", type="string") * @ORM\DiscriminatorMap({"contact" = "Contact", "custom_contact" = "CustomContact"})

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* @ORM\InheritanceType("JOINED") * @ORM\DiscriminatorColumn(name="discr", type="string") * @ORM\DiscriminatorMap({"contact" = "Contact", "custom_contact" = "CustomContact"})

Add migration:

PHP

<?php namespace Custom\Bundle\OroBundle\Migrations\Schema\v1_7; use Doctrine\DBAL\Schema\Schema; use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension; use Oro\Bundle\MigrationBundle\Migration\Migration; use Oro\Bundle\MigrationBundle\Migration\QueryBag; class CustomContact implements Migration { /** * {@inheritdoc} */ public function up(Schema $schema, QueryBag $queries) { self::addCustomContact($schema); } /** * @param Schema $schema * @param ExtendExtension $extendExtension */ public static function addCustomContact(Schema $schema) { $table = $schema->createTable('custom_oro_contact'); $table->addColumn('id', 'integer', ['autoincrement' => true]); $table->addColumn('text', 'string', ['length' => 255]); $table->addColumn('name', 'string', ['length' => 255]); $table->setPrimaryKey(['id']); $table = $schema->getTable('orocrm_contact'); $table->addColumn('discr', 'string', ['length' => 255]); } }

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<?php   namespace Custom\Bundle\OroBundle\Migrations\Schema\v1_7;   use Doctrine\DBAL\Schema\Schema;   use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension; use Oro\Bundle\MigrationBundle\Migration\Migration; use Oro\Bundle\MigrationBundle\Migration\QueryBag;   class CustomContact implements Migration {     /**      * {@inheritdoc}      */     public function up(Schema $schema, QueryBag $queries)     {         self::addCustomContact($schema);     }       /**      * @param Schema $schema      * @param ExtendExtension $extendExtension      */     public static function addCustomContact(Schema $schema)     {         $table = $schema->createTable('custom_oro_contact');         $table->addColumn('id', 'integer', ['autoincrement' => true]);         $table->addColumn('text', 'string', ['length' => 255]);         $table->addColumn('name', 'string', ['length' => 255]);         $table->setPrimaryKey(['id']);           $table = $schema->getTable('orocrm_contact');         $table->addColumn('discr', 'string', ['length' => 255]);     } }

Add custom entity:

PHP

<?php namespace Custom\Bundle\OroBundle\Entity; use Doctrine\ORM\Mapping as ORM; use OroCRM\Bundle\ContactBundle\Entity\Contact; /** * @ORM\Entity * @ORM\Table(name="custom_oro_contact") */ class CustomContact extends Contact { /** * @var integer * * @ORM\Column(type="integer") * @ORM\Id * @ORM\GeneratedValue(strategy="AUTO") */ protected $id; /** * @var string * * @ORM\Column(name="name", type="string", length=255) */ protected $text; /** * @return string */ public function getText() { return $this->text; } /** * @param string $text */ public function setText($text) { $this->text = $text; } }

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<?php   namespace Custom\Bundle\OroBundle\Entity;   use Doctrine\ORM\Mapping as ORM;   use OroCRM\Bundle\ContactBundle\Entity\Contact;   /** * @ORM\Entity * @ORM\Table(name="custom_oro_contact") */   class CustomContact extends Contact {     /**      * @var integer      *      * @ORM\Column(type="integer")      * @ORM\Id      * @ORM\GeneratedValue(strategy="AUTO")      */     protected $id;       /**      * @var string      *      * @ORM\Column(name="name", type="string", length=255)      */     protected $text;       /**      * @return string      */     public function getText()     {         return $this->text;     }       /**      * @param string $text      */     public function setText($text)     {         $this->text = $text;     } }

and run:

Shell

app/console oro:platform:update --force

1	app/console oro:platform:update --force

[thinh2010Participant]

Hi Mike,

Thanks for your reply and solution. I just use the ORO platform so that I created ContactBundle by myself and make it extendable via Discriminator. I have a list of contacts like Student, Teacher, Speaker, … so that I want to use Discriminator. Now my code is OK with my own ContactBundle, no need migration anymore :D

[Author]

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