#1847 confirmed
Thomas Parle

Orphan removal not cascaded for @OneToOne relationships

Reported by Thomas Parle | July 7th, 2014 @ 10:34 PM | in 1.4.x

Framework version: 1.3 RC 1
Platform you're using: Linux Ubuntu 14.04

Reproduction steps:
- use the project attached as a zip file - run the test (there is only one) to reproduce the error

Details:
the bug seems to be related to a @OneToOne association whose entity is to be deleted by setting its reference to 'null'. As 'orphanRemoval' is set to true, the entity should be deleted, but the foreign keys related to this entity ('Animal' in the sample project) do not trigger the proper delete on tables that references this entity (here, the table 'Animal_Meal').
In Play 1.2.x, I used a hack to manually remove these dependencies with a @PreRemove callback, but in Play 1.3 it causes a StackOverflowException.

It seems that this bug is related to Hibernate, and seems to have been fixed in versions 4.2.7 and 4.3.0, see:
- https://hibernate.atlassian.net/browse/HHH-6484 - http://stackoverflow.com/questions/20280271/hibernate-jpa-onetoone-...

Maybe a simple upgrade of Hibernate would fix this issue (the version used by Play 1.3RC1 is 4.1.3)
Hope it helps !
Thomas

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