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Diffstat (limited to 'guides/source/association_basics.md')
| -rw-r--r-- | guides/source/association_basics.md | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index 60790b33a4..999c533fb3 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -932,8 +932,11 @@ If you set the `:dependent` option to: * `:destroy`, when the object is destroyed, `destroy` will be called on its associated objects. -* `:delete`, when the object is destroyed, all its associated objects will be +* `:delete_all`, when the object is destroyed, all its associated objects will be deleted directly from the database without calling their `destroy` method. +* `:nullify`, causes the foreign key to be set to `NULL`. Callbacks are not executed. +* `:restrict_with_exception`, causes an exception to be raised if there is an associated record +* `:restrict_with_error`, causes an error to be added to the owner if there is an associated object WARNING: You should not specify this option on a `belongs_to` association that is connected with a `has_many` association on the other class. Doing so can lead to orphaned records in your database. |