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Extended Associations

This topic shows how to create different types of relationships between entities when you know the entity type for the target side of the relationship. For more complex cases, see Multi-Target Extended Associations.

Limitations

A new relationship can be created between two entities when at least one entity on the owning side of the relationship (the one that owns the foreign key in the database) is extendable. This rule enables you to create a relationship for the following combinations of entities:

	Extendable entity	Non-extendable entity
Extendable entity	bidirectional and unidirectional many-to-many, bidirectional and unidirectional many-to-one, bidirectional one-to-many	many-to-many and many-to-one relationships, unidirectional only
Non-extendable entity	None	None

Many-To-One, Unidirectional

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

 namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

 use Doctrine\DBAL\Schema\Schema;
 use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
 use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
 use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
 use Oro\Bundle\MigrationBundle\Migration\Migration;
 use Oro\Bundle\MigrationBundle\Migration\QueryBag;

 class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
 {
     protected $extendExtension;

     /**
      * {@inheritdoc}
      */
     public function setExtendExtension(ExtendExtension $extendExtension)
     {
         $this->extendExtension = $extendExtension;
     }

     /**
      * {@inheritdoc}
      */
     public function up(Schema $schema, QueryBag $queries)
     {
         $this->addRelationsToUser($schema);
     }

     private function addRelationsToUser(Schema $schema)
     {
         $this->extendExtension->addManyToOneRelation(
             $schema,
             'oro_user', // owning side table
             'document', // owning side field name
             'acme_document', // inverse side table
             'id', // column name is used to show related entity
             [
                 'extend' => [
                     'owner' => ExtendScope::OWNER_CUSTOM
                 ]
             ]
         );
     }
 }

Many-To-One, Bidirectional

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;

class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
{
    protected $extendExtension;

    /**
     * {@inheritdoc}
     */
    public function setExtendExtension(ExtendExtension $extendExtension)
    {
        $this->extendExtension = $extendExtension;
    }

    /**
     * {@inheritdoc}
     */
    public function up(Schema $schema, QueryBag $queries)
    {
        $this->addRelationsToUser($schema);
    }

    private function addRelationsToUser(Schema $schema)
    {
        $this->extendExtension->addManyToOneRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            'id', // column name is used to show related entity
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM
                ]
            ]
        );
        $this->extendExtension->addManyToOneInverseRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            'users', // inverse side field name
            ['username'], // column names are used to show a title of owning side entity
            ['username'], // column names are used to show detailed info about owning side entity
            ['username'], // Column names are used to show owning side entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM
                ]
            ]
        );
    }
}

Many-To-Many, Unidirectional

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;

class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
{
    protected $extendExtension;

    /**
     * {@inheritdoc}
     */
    public function setExtendExtension(ExtendExtension $extendExtension)
    {
        $this->extendExtension = $extendExtension;
    }

    /**
     * {@inheritdoc}
     */
    public function up(Schema $schema, QueryBag $queries)
    {
        $this->addRelationsToUser($schema);
    }

    private function addRelationsToUser(Schema $schema)
    {
        $this->extendExtension->addManyToManyRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            ['subject'], // column names are used to show a title of related entity
            ['description'], // column names are used to show detailed info about related entity
            ['subject'], // Column names are used to show related entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM
                ]
            ]
        );
    }
}

Many-To-Many, Unidirectional, Without Default Entity

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;

class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
{
    protected $extendExtension;

    /**
     * {@inheritdoc}
     */
    public function setExtendExtension(ExtendExtension $extendExtension)
    {
        $this->extendExtension = $extendExtension;
    }

    /**
     * {@inheritdoc}
     */
    public function up(Schema $schema, QueryBag $queries)
    {
        $this->addRelationsToUser($schema);
    }

    private function addRelationsToUser(Schema $schema)
    {
        $this->extendExtension->addManyToManyRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            ['subject'], // column names are used to show a title of related entity
            ['description'], // column names are used to show detailed info about related entity
            ['subject'], // Column names are used to show related entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM,
                    'without_default' => true
                ]
            ]
        );
    }
}

Many-To-Many, Bidirectional

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;

class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
{
    protected $extendExtension;

    /**
     * {@inheritdoc}
     */
    public function setExtendExtension(ExtendExtension $extendExtension)
    {
        $this->extendExtension = $extendExtension;
    }

    /**
     * {@inheritdoc}
     */
    public function up(Schema $schema, QueryBag $queries)
    {
        $this->addRelationsToUser($schema);
    }

    private function addRelationsToUser(Schema $schema)
    {
        $this->extendExtension->addManyToManyRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            ['subject'], // column names are used to show a title of related entity
            ['description'], // column names are used to show detailed info about related entity
            ['subject'], // Column names are used to show related entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM,
                    'without_default' => true
                ]
            ]
        );
        $this->extendExtension->addManyToManyInverseRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            'users', // inverse side field name
            ['username'], // column names are used to show a title of owning side entity
            ['username'], // column names are used to show detailed info about owning side entity
            ['username'], // Column names are used to show owning side entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM
                ]
            ]
        );
    }
}

Many-To-Many, Bidirectional, Without Default Entity

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;

class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
{
    protected $extendExtension;

    /**
     * {@inheritdoc}
     */
    public function setExtendExtension(ExtendExtension $extendExtension)
    {
        $this->extendExtension = $extendExtension;
    }

    /**
     * {@inheritdoc}
     */
    public function up(Schema $schema, QueryBag $queries)
    {
        $this->addRelationsToUser($schema);
    }

    private function addRelationsToUser(Schema $schema)
    {
        $this->extendExtension->addManyToManyRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            ['subject'], // column names are used to show a title of related entity
            ['description'], // column names are used to show detailed info about related entity
            ['subject'], // Column names are used to show related entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM,
                    'without_default' => true
                 ]
            ]
        );
        $this->extendExtension->addManyToManyInverseRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            'users', // inverse side field name
            ['username'], // column names are used to show a title of owning side entity
            ['username'], // column names are used to show detailed info about owning side entity
            ['username'], // Column names are used to show owning side entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM
                ]
            ]
        );
    }
}

One-To-Many, Bidirectional

According to the Doctrine documentation, the one-to-many relationship must be implemented as bidirectional unless it uses an additional join-table. Oro implementation of the ExtendExtension defines association on the “many” side, so it implies a bidirectional type of relationship.

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;

class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
{
    protected $extendExtension;

    /**
     * {@inheritdoc}
     */
    public function setExtendExtension(ExtendExtension $extendExtension)
    {
        $this->extendExtension = $extendExtension;
    }

    /**
     * {@inheritdoc}
     */
    public function up(Schema $schema, QueryBag $queries)
    {
        $this->addRelationsToUser($schema);
    }

    private function addRelationsToUser(Schema $schema)
    {
        $this->extendExtension->addOneToManyRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            ['subject'], // column names are used to show a title of related entity
            ['description'], // column names are used to show detailed info about related entity
            ['subject'], // Column names are used to show related entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM
                ]
            ]
        );
    }
}

One-To-Many, Bidirectional, Without Default Entity

src/Acme/Bundle/DemoBundle/Migrations/Schema/v1_7/AddDocumentRelationToUser.php

namespace Acme\Bundle\DemoBundle\Migrations\Schema\v1_7;

use Doctrine\DBAL\Schema\Schema;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtension;
use Oro\Bundle\EntityExtendBundle\Migration\Extension\ExtendExtensionAwareInterface;
use Oro\Bundle\EntityExtendBundle\EntityConfig\ExtendScope;
use Oro\Bundle\MigrationBundle\Migration\Migration;
use Oro\Bundle\MigrationBundle\Migration\QueryBag;

class AddDocumentRelationToUser implements Migration, ExtendExtensionAwareInterface
{
    protected $extendExtension;

    /**
     * {@inheritdoc}
     */
    public function setExtendExtension(ExtendExtension $extendExtension)
    {
        $this->extendExtension = $extendExtension;
    }

    /**
     * {@inheritdoc}
     */
    public function up(Schema $schema, QueryBag $queries)
    {
        $this->addRelationsToUser($schema);
    }

    private function addRelationsToUser(Schema $schema)
    {
        $this->extendExtension->addOneToManyRelation(
            $schema,
            'oro_user', // owning side table
            'document', // owning side field name
            'acme_document', // inverse side table
            ['subject'], // column names are used to show a title of related entity
            ['description'], // column names are used to show detailed info about related entity
            ['subject'], // Column names are used to show related entity in a grid
            [
                'extend' => [
                    'owner' => ExtendScope::OWNER_CUSTOM,
                    'without_default' => true
                ]
            ]
        );
    }
}