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| author | Laerti <laertis.pappas@gmail.com> | 2019-01-15 15:03:20 +0100 |
|---|---|---|
| committer | Ryuta Kamizono <kamipo@gmail.com> | 2019-01-15 23:03:20 +0900 |
| commit | 41ffddbc8b7faec66a26bd48dfd36a9def6cc23f (patch) | |
| tree | 578282157b3386a787237e9f8fa934010aa6233c /guides/source | |
| parent | e4213e7c682f2b4bf19383ea1af1681c81c96ac5 (diff) | |
| download | rails-41ffddbc8b7faec66a26bd48dfd36a9def6cc23f.tar.gz rails-41ffddbc8b7faec66a26bd48dfd36a9def6cc23f.tar.bz2 rails-41ffddbc8b7faec66a26bd48dfd36a9def6cc23f.zip | |
Refs #28025 nullify *_type column on polymorphic associations on :nu… (#28078)
This PR addresses the issue described in #28025. On `dependent: :nullify` strategy only the foreign key of the relation is nullified. However on polymorphic associations the `*_type` column is not nullified leaving the record with a NULL `*_id` but the `*_type` column is present.
Diffstat (limited to 'guides/source')
| -rw-r--r-- | guides/source/association_basics.md | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/guides/source/association_basics.md b/guides/source/association_basics.md index 4f3e8b2cff..38e46e4bf8 100644 --- a/guides/source/association_basics.md +++ b/guides/source/association_basics.md @@ -1257,7 +1257,7 @@ Controls what happens to the associated object when its owner is destroyed: * `:destroy` causes the associated object to also be destroyed * `:delete` causes the associated object to be deleted directly from the database (so callbacks will not execute) -* `:nullify` causes the foreign key to be set to `NULL`. Callbacks are not executed. +* `:nullify` causes the foreign key to be set to `NULL`. Polymorphic type column is also nullified on polymorphic associations. Callbacks are not executed. * `:restrict_with_exception` causes an `ActiveRecord::DeleteRestrictionError` 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 @@ -1658,7 +1658,7 @@ Controls what happens to the associated objects when their owner is destroyed: * `:destroy` causes all the associated objects to also be destroyed * `:delete_all` causes all the associated objects to be deleted directly from the database (so callbacks will not execute) -* `:nullify` causes the foreign keys to be set to `NULL`. Callbacks are not executed. +* `:nullify` causes the foreign key to be set to `NULL`. Polymorphic type column is also nullified on polymorphic associations. Callbacks are not executed. * `:restrict_with_exception` causes an `ActiveRecord::DeleteRestrictionError` exception to be raised if there are any associated records * `:restrict_with_error` causes an error to be added to the owner if there are any associated objects |