gistfile1.txt

PHP Warning:  Uncaught exception 'Doctrine\ORM\ORMException' with message 'Entity of type "A" has identity through a foreign entity "B", however this entity has no identity itself. You have to call EntityManager#persist() on the related entity and make sure that an identifier was generated before trying to persist "A". In case of Post Insert ID Generation (such as MySQL Auto-Increment or PostgreSQL SERIAL) this means you have to call EntityManager#flush() between both persist operations.' in /vendor/doctrine/orm/lib/Doctrine/ORM/ORMException.php:50

gistfile2.php

<?php

//...

public function create()
{
		/** @var $EntityManager \Doctrine\ORM\EntityManager */
		$EntityManager = Context::getInstance()->get( 'db' )->getEntityManager();
		/** @var $A */
		$A = $EntityManager->find( 'A', $someId );
		$B = new B();

		$B
			->setOne( $one )
			->setTwo( $two )
			->setA( $A );

		$EntityManager->persist( $B );

		/** @var $C */
		$C    = $EntityManager->find( 'C', $someOtherId );
		$BtoC = new BC();

		$BtoC
			->setB( $B )
			->setC( $C );

		$EntityManager->persist( $BtoC );
		$EntityManager->flush();
	}
  

gistfile3.txt

Stack trace:
#0 /vendor/doctrine/orm/lib/Doctrine/ORM/Id/AssignedGenerator.php(58): Doctrine\ORM\ORMException::entityMissingForeignAssignedId(Object(BC), Object(B))
#1 /vendor/doctrine/or in /home/sandbox/public_html/dev_ticket_system/vendor/doctrine/orm/lib/Doctrine/ORM/ORMException.php on line 50