Explicitly set Id with Doctrine when using "AUTO" strategy

Question

My entity uses this annotation for it's ID:

/**
 * @orm:Id
 * @orm:Column(type="integer")
 * @orm:GeneratedValue(strategy="AUTO")
 */
protected $id;

From a clean database, I'm importing in existing records from an older database and trying to keep the same IDs. Then, when adding new records, I want MySQL to auto-increment the ID column as usual.

Unfortunately, it appears Doctrine2 completely ignores the specified ID.

---

New Solution

Per recommendations below, the following is the preferred solution:

$this->em->persist($entity);

$metadata = $this->em->getClassMetaData(get_class($entity));
$metadata->setIdGeneratorType(\Doctrine\ORM\Mapping\ClassMetadata::GENERATOR_TYPE_NONE);
$metadata->setIdGenerator(new \Doctrine\ORM\Id\AssignedGenerator());

Old Solution

Because Doctrine pivots off of the ClassMetaData for determining the generator strategy, it has to be modified after managing the entity in the EntityManager:

$this->em->persist($entity);

$metadata = $this->em->getClassMetaData(get_class($entity));
$metadata->setIdGeneratorType(\Doctrine\ORM\Mapping\ClassMetadata::GENERATOR_TYPE_NONE);

$this->em->flush();

I just tested this on MySQL and it worked as expected, meaning Entities with a custom ID were stored with that ID, while those without an ID specified used the lastGeneratedId() + 1.

Answer 1

Although your solution work fine with MySQL, I failed to make it work with PostgreSQL as It's sequence based.

I've to add this line to make it work perfectly :

$metadata->setIdGenerator(new \Doctrine\ORM\Id\AssignedGenerator());

Best regards,