[DBAL-178] Unknown column type requested Created: 02/Nov/11  Updated: 05/Aug/13  Resolved: 26/Jun/12

Status: Resolved
Project: Doctrine DBAL
Component/s: None
Affects Version/s: None
Fix Version/s: 2.3

Type: Improvement Priority: Minor
Reporter: Francois Mazerolle Assignee: Benjamin Eberlei
Resolution: Fixed Votes: 1
Labels: None

OSX ( Using Symfony2 )


When I run doctrine:schema:create, doctrine throw the following exception:
Unknown column type requested.

( Note: their is 2 spaces between type and requested )

The problem with this error message is how much it's unspecific. Event with -v, I still have no clue about that type is wrong, and what file is concerned.
So basically, I have to manually look at all my mapping files, one by one.

Also note that doctrine:mapping:info return all OK.

Comment by Denny Swindle [ 21/Nov/11 ]

Ironically, this same issue has recently started happening for me as well. It just started randomly over the weekend. Same exact issue (with 2 spaces between type and requested). For me, it happens when using Doctrine\ORM\EntityManager->find() on a valid entity.

#0 /doctrine-2.1.2/Doctrine/DBAL/DBALException.php(81): Doctrine\DBAL\DBALException::unknownColumnType()
#1 /doctrine-2.1.2/Doctrine/DBAL/Types/Type.php(140): Doctrine\DBAL\DBALException::unknownColumnType()
#2 /doctrine-2.1.2/Doctrine/ORM/Internal/Hydration/SimpleObjectHydrator.php(84): Doctrine\DBAL\Types\Type::getType()
#3 /doctrine-2.1.2/Doctrine/ORM/Internal/Hydration/SimpleObjectHydrator.php(43): Doctrine\ORM\Internal\Hydration\SimpleObjectHydrator->_hydrateRow()
#4 /doctrine-2.1.2/Doctrine/ORM/Internal/Hydration/AbstractHydrator.php(99): Doctrine\ORM\Internal\Hydration\SimpleObjectHydrator->_hydrateAll()
#5 /doctrine-2.1.2/Doctrine/ORM/Persisters/BasicEntityPersister.php(581): Doctrine\ORM\Internal\Hydration\AbstractHydrator->hydrateAll()
#6 /doctrine-2.1.2/Doctrine/ORM/EntityRepository.php(130): Doctrine\ORM\Persisters\BasicEntityPersister->load()
#7 /doctrine-2.1.2/Doctrine/ORM/EntityManager.php(350): Doctrine\ORM\EntityRepository->find()

Comment by Gediminas Morkevicius [ 21/Jan/12 ]

hi, seems like doctrine does not clean cache fully.

in my case I'm using APC cache
run: in php *apc_clear_cache('user');*

it should work fine now

running cache clearing commands, does not help.

doctrine:cache:clear-metadata Clears all metadata cache for a entity manager
doctrine:cache:clear-query Clears all query cache for a entity manager
doctrine:cache:clear-result Clears result cache for a entity manager

Comment by Francois Mazerolle [ 23/Jan/12 ]


@gediminas : I don't have the error anymore so I can't test, but it's nice if there's a solution to fix it.

However, this error is problematic as it's anti-verbose.
There's is no indication of a cache problem in the error message. It try to point out to a field, and that field is not even displayed in the error.
I hope someone will be able to fix the error so that's it become a useful error, like by following some sort of guideline:


I don't want to troll or anything, but as I'Ve started using doctrine2 with symfony2, the MAJOR problem I've encountered what bad error message that was leaving me lost. Often I had -v, find the file where the error occurred, look at the code, understand by myself what's wrong and attempt to fix it. This is counter-productive and really show that the exception message doesn't follow most error message guide line. For sure, we're not end-users, but we're "programmer-user" that use the system, and this "title" come with a knowledge that is not the same as we could expect of a core-developer, for example.

I hope this message was constructive.

Comment by Benjamin Eberlei [ 26/Jun/12 ]

Improved this error message alot and also changed some regarding reverse engineering of custom types (where this error often occured):

You can now implement Type#getMappedDatabaseTypes(AbstractPlatform $platform); on your custom type and return a list of database types that this doctrine type maps to.

Comment by Almog Baku [ 05/Aug/13 ]

this bug is still happening to me.. but its works as excepted within `schema:create` and throw error on `schema:update` or `schema:drop`

I using doctrine with symfony

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