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| author | Abdelkader Boudih <terminale@gmail.com> | 2015-02-01 18:31:47 +0000 |
|---|---|---|
| committer | Abdelkader Boudih <terminale@gmail.com> | 2015-02-01 18:31:47 +0000 |
| commit | 2fe954ec803efe6b8f3b08541070f9e6a8c71232 (patch) | |
| tree | ecb2e577be82c98e2c36eebb54b27b2827efa484 | |
| parent | 0f2e05d64f9539940b1eb926d67d911c9554f85a (diff) | |
| parent | ec48e5d6543b4c14f5dd86b6815ce4a30a572d06 (diff) | |
| download | rails-2fe954ec803efe6b8f3b08541070f9e6a8c71232.tar.gz rails-2fe954ec803efe6b8f3b08541070f9e6a8c71232.tar.bz2 rails-2fe954ec803efe6b8f3b08541070f9e6a8c71232.zip | |
Merge pull request #18770 from palkan/docs-hasone-dependent
Add note about has_one :through and :dependent
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 35bc09bb10..81a42e22f3 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1000,6 +1000,8 @@ module ActiveRecord # callbacks declared either before or after the <tt>:dependent</tt> option # can affect what it does. # + # Note that <tt>:dependent</tt> option is ignored for +has_one+ <tt>:through</tt> associations. + # # === Delete or destroy? # # +has_many+ and +has_and_belongs_to_many+ associations have the methods <tt>destroy</tt>, @@ -1330,6 +1332,8 @@ module ActiveRecord # * <tt>:nullify</tt> causes the foreign key to be set to +NULL+. Callbacks are not executed. # * <tt>:restrict_with_exception</tt> causes an exception to be raised if there is an associated record # * <tt>:restrict_with_error</tt> causes an error to be added to the owner if there is an associated object + # + # Note that <tt>:dependent</tt> option is ignored when using <tt>:through</tt> option. # [:foreign_key] # Specify the foreign key used for the association. By default this is guessed to be the name # of this class in lower-case and "_id" suffixed. So a Person class that makes a +has_one+ association |