[DDC-2922] Flushing new Entities reachable over several paths that do not all "cascade persist" Created: 17/Jan/14  Updated: 18/Aug/14

Status: Awaiting Feedback
Project: Doctrine 2 - ORM
Component/s: ORM
Affects Version/s: 2.3.3
Fix Version/s: None

Type: Bug Priority: Major
Reporter: Matthias Pigulla Assignee: Benjamin Eberlei
Resolution: Unresolved Votes: 1
Labels: None


 Description   

Please consider the following associations:

  A <>--> B <-- C  

A is an "aggregate" type object w/ a OneToMany collection of Bs. This association is set to cascade persist operations.

C has a unidirectional OneToOne association to B as well.

Adding a new B to A's collection and flushing the EntityManager works - B is persisted (persistence by reachability).

However, when also creating a new C and pointing it to the new B, adding C to the EntityManager and then flushing leads to an exception because B is discovered as a new Entity through a relationship not set to cascade persist operations.

Obviously the problem here is that there are two paths through which we can discover new Entities. The UoW currently starts search from newly (explicitly) added Entities first before it walks through collections of already-managed entities.

I am unsure if it is just a documentation issue or a deeper problem?

If the UoW worked the other way round, the same problem would occur if the cascade persist was on the other association.

A solution would probably require the UoW to first collect all offending (new) Entities and the link they were discovered through, but later on remove Entities from this list if they are found through another association with the cascade persist option. The exception must not be thrown unless the whole reachability graph has been traversed.



 Comments   
Comment by Marco Pivetta [ 18/Aug/14 ]

Can this be factored into a failing test case? I'm not sure if we can support it, but the code would make it much easier to track down the issue into something fixable.





[DDC-2838] Leaky abstraction when applying Criteria to hydrated/non-hydrated PersistentCollection Created: 03/Dec/13  Updated: 26/Jun/15

Status: Awaiting Feedback
Project: Doctrine 2 - ORM
Component/s: ORM
Affects Version/s: 2.4.1, 2.6.0
Fix Version/s: None

Type: Bug Priority: Major
Reporter: brian ridley Assignee: Marco Pivetta
Resolution: Unresolved Votes: 2
Labels: None

Attachments: File DDC2838Test.php    
Issue Links:
Reference
is referenced by DCOM-275 Collections\Expr\ClosureExpressionVis... Open
is referenced by DCOM-249 Criteria are unable to locate getters... Open

 Description   

When applying a Criteria to a PersistentCollection that has been hydrated the field names must be camel case, if the collection has not yet been hydrated the field names must be underscore separated.

The github repo linked here contains a simplified testcase for the matrix of hydrated/non-hydrated entities and camel case/underscore separated fields.

https://github.com/ptlis/DoctrineTestcase



 Comments   
Comment by Marco Pivetta [ 18/Aug/14 ]

We can't check out an entire project just to test a bug.

Please write an actual functional test case that can be integrated into the Doctrine ORM test suite.

Comment by brian ridley [ 20/Aug/14 ]

Hi,

i'm happy to do so - i'll take a look at this over the weekend.

Comment by Simon Paridon [ 12/Dec/14 ]

brian ridley: Any progress on this? This is currently an issue for us as well and hope to get fixed. I could look into converting it to a test for integration with the test suite if you don't have the time... but it might take a while since I have no experience with the requirements that should be met. (Plus, I am not sure how tightly coupled it is with your project)

Comment by Simon Paridon [ 17/Dec/14 ]

Hi Marco Pivetta, brian ridley,

I attached a functional Test that integrates with the test suite. Please let me know if I should issue a PR, and I'll do that this evening.

Comment by Florian Preusner [ 26/Dec/14 ]

+1

Comment by Simon Paridon [ 26/Jun/15 ]

My idea to solve this would go like this:

  • Add a new class ObjectCollection in Common that implements Collection and Selectable, but requires class metadata.
  • Whenever creating an ArrayCollection with entities / other objects, create an ObjectCollection instead.

The only thing that's causing me a headache is that ideally, there should be code sharing in some form between the matching() implementations of ObjectCollection and PersistentCollection, because both will use class metadata. Maybe this can be achieved somehow using a trait?

If you like the idea, I could look into it further.





[DDC-2424] Removing an inherited entity via a delete cascade constraint does not remove the parent row Created: 02/May/13  Updated: 15/Oct/14

Status: Awaiting Feedback
Project: Doctrine 2 - ORM
Component/s: None
Affects Version/s: 2.3.3, 2.4.6
Fix Version/s: None

Type: Bug Priority: Major
Reporter: Bruno Jacquet Assignee: Benjamin Eberlei
Resolution: Unresolved Votes: 3
Labels: inheritance, postgresql
Environment:

Mysql 5.1.66 / Symfony 2.2.1



 Description   

For a parent class:

/**
 * @ORM\Entity
 * @ORM\Table(name="Base")
 * @ORM\InheritanceType("JOINED")
 * @ORM\DiscriminatorColumn(name="discr", type="string")
 * @ORM\DiscriminatorMap({"child1" = "Child1", "child2" = "Child2"})
 */

and simple Child1 & Child2 entities.

With another entity (let's call it ExternalEntity) having a bidirectional OneToOne relation owned by Child1:

class Child1 extends Base
{
  /**
   * @ORM\OneToOne(targetEntity="ExternalEntity", inversedBy="xxx")
   * @ORM\JoinColumn(onDelete="CASCADE", nullable=false)
   */
   private theForeignKey;
}

Enough for the context.
The symptoms:

$em->remove(instanceOfExternalEntity);

removes the ExternalEntity row and the Child1 row. But a dangling row in the Base table is still there for the now inexistent Child1 instance.

Though, a manual delete of either the associated Child1 OR Base row and then the ExternalEntity works.

The problem with the cascading deletion of the parent seems to be only present when deleting through a MYSQL cascading delete from another row which has a foreign key on a child. (Not tested with a foreign key on the parent though)



 Comments   
Comment by Benjamin Eberlei [ 04/May/13 ]

Can you show the CREATE TABLE and FOREIGN KEY statements of all the tables involved? It seems the cascade of the foreign keys is not propagated between multiple tables?

Comment by Bruno Jacquet [ 06/May/13 ]

CREATE TABLE Base (id INT AUTO_INCREMENT NOT NULL, PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE = InnoDB;
CREATE TABLE Child1 (id INT NOT NULL, foreignKey INT NOT NULL, UNIQUE INDEX UNIQ_179B6E88E992F5A (foreignKey), PRIMARY KEY(id)) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci ENGINE = InnoDB;

ALTER TABLE Child1 ADD CONSTRAINT FK_179B6E88E992F5A FOREIGN KEY (foreignKey) REFERENCES ExternalEntity (id) ON DELETE CASCADE;
ALTER TABLE Child1 ADD CONSTRAINT FK_179B6E8BF396750 FOREIGN KEY (id) REFERENCES Base (id) ON DELETE CASCADE;

Comment by Bruno Jacquet [ 06/May/13 ]

The problem is that, the SQL model never explicitely tells the DB to delete the corresponding Base when Child1 gets removed. It looks like it is handled by the doctrine entity manager layer and not the actual DB engine (Base has no on delete cascade nor foreign key to its children).
So only doctrine can add the logic here because it knows the entity schema. But in this case, when it is deleted from another table, it looks like the special treatment is not triggered.

Comment by Bruno Jacquet [ 06/May/13 ]

Maybe using

cascade={"remove"}

, instead of

onDelete="CASCADE"

to force the cascading process to be handled by doctrine would workaround the bug... But I prefer to have my DB do the logic work as much as possible.

Comment by J [ 25/Apr/14 ]

I've got a similar problem but I have InheritanceType("SINGLE_TABLE") instead of JOINED.
Any updates on when this is getting fixed?





[DDC-1988] Add Any and ManyToAny annotations Created: 18/Aug/12  Updated: 10/Jul/14

Status: Awaiting Feedback
Project: Doctrine 2 - ORM
Component/s: ORM
Affects Version/s: None
Fix Version/s: None

Type: New Feature Priority: Minor
Reporter: Stefano Rodriguez Assignee: Benjamin Eberlei
Resolution: Unresolved Votes: 1
Labels: None


 Description   

It would be really nice to have @Any and @ManyToAny relations/annotations implemented like on Hibernate.
http://docs.jboss.org/hibernate/orm/4.1/javadocs/org/hibernate/annotations/ManyToAny.html
Right now I've implemented these in a Symfony2 bundle (that I'd be happy to share once it's ready and a bit documented), using listeners on postLoad, preFlush and prePersist
However I think this is a very common use case that anyone will encounter at least once/twice in every middle/big-sized project, and for this reason I think this should be implemented as a core feature.






[DDC-3287] PreUpdateEventArgs need to extend Doctrine\Common\PreUpdateEventArgs Created: 29/Aug/14  Updated: 15/Jan/15

Status: Awaiting Feedback
Project: Doctrine 2 - ORM
Component/s: ORM
Affects Version/s: None
Fix Version/s: None

Type: Improvement Priority: Trivial
Reporter: Sebastian Kuhlmann Assignee: Benjamin Eberlei
Resolution: Unresolved Votes: 0
Labels: inheritance, orm

Issue Links:
Reference
relates to DDC-3320 [GH-1144] [DDC-3287] Change parent cl... Resolved

 Description   

Currently the inheritance tree of the EventArgs don't allow for creating event listeners that fit both ORM- and MongoDB-driven applications.

Doctrine\Common defines base classes for Lifecycle event arguments. Doctrine\ORM uses the common library and extends it's classes. So does MongoDB. If you wanted to write something that suits both ORM and MongoDB you should be able to rely on the Common-implementations.

The provided classes to extend:

  • Doctrine\Common\Persistence\Event\LifecycleEventArgs
  • Doctrine\Common\Persistence\Event\LoadClassMetadataEventArgs
  • Doctrine\Common\Persistence\Event\ManagerEventArgs
  • Doctrine\Common\Persistence\Event\OnClearEventArgs
  • Doctrine\Common\Persistence\Event\PreUpdateEventArgs

Checking the Github repository there is no common ground for the inheritance mechanism.

  • Doctrine\ORM\Event\LifecycleEventArgs extends Doctrine\Common\Persistence\Event\LifecycleEventArgs
  • Doctrine\ORM\Event\PreUpdateEventArgs extends Doctrine\ORM\Event\LifecycleEventArgs
  • Doctrine\ORM\Event\PreFlushEventArgs extends Doctrine\Common\EventArgs
  • Doctrine\ORM\Event\PostFlushEventArgs extends Doctrine\Common\EventArgs
  • Doctrine\ORM\Event\OnFlushEventArgs extends Doctrine\Common\EventArgs
  • Doctrine\ORM\Event\OnClearEventArgs extends Doctrine\Common\EventArgs

This needs to change and ORM\PreUpdateEventArgs as well as ORM\OnClearEventArgs need to extend the respective events from Doctrine\Common.



 Comments   
Comment by Sebastian Kuhlmann [ 23/Sep/14 ]

See https://github.com/doctrine/doctrine2/pull/1144

Comment by Christophe Coevoet [ 04/Oct/14 ]

All flush event args should be updated to extend ManagerEventArgs (and marking their getEntityManager method as deprecated too)

Comment by Christophe Coevoet [ 04/Oct/14 ]

to be clear, the change on PreUpdateEventArgs cannot be done until 3.0 because of BC

Comment by Doctrine Bot [ 19/Oct/14 ]

A related Github Pull-Request [GH-1144] was assigned:
https://github.com/doctrine/doctrine2/pull/1144

Comment by Doctrine Bot [ 15/Jan/15 ]

A related Github Pull-Request [GH-1144] was closed:
https://github.com/doctrine/doctrine2/pull/1144





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