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has_and_belong_to_many destroy with foreign key constraints broken
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JackC- Tag changed from foreign key constraint destroy 3.0, has_and_belongs_to_many to foreign key, rails 3.0.0, constraint, destroy, has_and_belongs_to_many
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Santiago Pastorino
- State changed from new to open
- Tag changed from foreign key, rails 3.0.0, constraint, destroy, has_and_belongs_to_many to foreign key, rails 300, constraint, destroy, has_and_belongs_to_many
This issue has been automatically marked as stale because it has not been commented on for at least three months.
The resources of the Rails core team are limited, and so we are asking for your help. If you can still reproduce this error on the 3-0-stable branch or on master, please reply with all of the information you have about it and add "[state:open]" to your comment. This will reopen the ticket for review. Likewise, if you feel that this is a very important feature for Rails to include, please reply with your explanation so we can consider it.
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Santiago Pastorino
- State changed from open to stale
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Jeremy McNevin- State changed from stale to open
This problem seems to still exist as of 3.0.5. Currently, I need to define my own before_destroy callback to clear out HABTM associations, or a destroy operation will fail when the join table has foreign key constraints.
[state:open]
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JackC
A workaround for PostgreSQL users is to define the foreign keys as initially deferred. That will let Rails delete it in the wrong order without error.
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JackC
Correction, deferred foreign keys don't work either. Rails is actually deleting the HABTM association after is commits the destroy transaction. This also could leave the database in an inconsistent state.