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| author | Vipul A M <vipulnsward@gmail.com> | 2014-01-25 19:55:48 +0530 |
|---|---|---|
| committer | Vipul A M <vipulnsward@gmail.com> | 2014-01-28 13:37:19 +0530 |
| commit | f93ce1bee992485de1d93e755a4c738c66b3b678 (patch) | |
| tree | d14ab5f819198addd9c7e87a61e8b35160b7c15c /activerecord | |
| parent | a31a44a266ad2e2ad2b9ce5aa56cd5e1d108d48a (diff) | |
| download | rails-f93ce1bee992485de1d93e755a4c738c66b3b678.tar.gz rails-f93ce1bee992485de1d93e755a4c738c66b3b678.tar.bz2 rails-f93ce1bee992485de1d93e755a4c738c66b3b678.zip | |
Add docs about behaviour of replacing a has_one associate object, that the previous one is deleted even if the new one
doesn't get persisted to database.
Fixes #13197 . [ci skip]
Diffstat (limited to 'activerecord')
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 714f623af3..f3f77e21c0 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1213,7 +1213,8 @@ module ActiveRecord # Returns the associated object. +nil+ is returned if none is found. # [association=(associate)] # Assigns the associate object, extracts the primary key, sets it as the foreign key, - # and saves the associate object. + # and saves the associate object. To avoid database inconsistencies, permanently deletes an existing + # associated object when assigning a new one, even if the new one isn't saved to database. # [build_association(attributes = {})] # Returns a new object of the associated type that has been instantiated # with +attributes+ and linked to this object through a foreign key, but has not |