[DCOM-287] [GH-369] [RFC] Load parent classes when loading metadata from cache Created: 22/May/15  Updated: 22/May/15

Status: Open
Project: Doctrine Common
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Bug Priority: Major
Reporter: Doctrine Bot Assignee: Benjamin Eberlei
Resolution: Unresolved Votes: 0
Labels: None


 Description   

This issue is created automatically through a Github pull request on behalf of gonzalovilaseca:

Url: https://github.com/doctrine/common/pull/369

Message:

This can be done more neatly, but before putting more time in it I'd like to check if it's a good idea.
I came across this solution because we had a problem with Gedmo extensions when caching metadata in Redis, this is our scenario:
```
Class A extends B;
```
``Class B`` has a ``Gedmo extension`` mapped field.

On first request metadata for both ``Class A`` and ``Class B`` is cached in Redis.

On second request ``AbstractClassMetadataFactory`` loads ``Class A`` from Redis.

Gedmo extension loops through all ``Class A`` parents and calls method ``hasMetadataFor($parentClass)`` in ``AbstractClassMetadataFactory``, only ``Class A`` metadata has been loaded previously, therefore ``hasMetadataFor($parentClass)`` returns false, and ``Gedmo`` then skips the parent class.

Should Gedmo exension load the metadata for the parent class or should it be done as proposed in this PR?






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