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| author | Jon Leighton <j@jonathanleighton.com> | 2011-01-01 18:23:06 +0000 |
|---|---|---|
| committer | Aaron Patterson <aaron.patterson@gmail.com> | 2011-01-03 16:24:30 -0800 |
| commit | d18a27031f8794b0134645eb0d62ec16653ac537 (patch) | |
| tree | f10540682a4adb0e8d3181e900ea37abfef053b1 /activerecord/lib/active_record/associations.rb | |
| parent | 16065b4f19b77111b7fec343969bcf98635e7e27 (diff) | |
| download | rails-d18a27031f8794b0134645eb0d62ec16653ac537.tar.gz rails-d18a27031f8794b0134645eb0d62ec16653ac537.tar.bz2 rails-d18a27031f8794b0134645eb0d62ec16653ac537.zip | |
Add documentation for the :foreign_type option on belongs_to
Diffstat (limited to 'activerecord/lib/active_record/associations.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 9a4f6d4dfd..0c71e76899 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1177,6 +1177,11 @@ module ActiveRecord # association will use "person_id" as the default <tt>:foreign_key</tt>. Similarly, # <tt>belongs_to :favorite_person, :class_name => "Person"</tt> will use a foreign key # of "favorite_person_id". + # [:foreign_type] + # Specify the column used to store the associated object's type, if this is a polymorphic + # association. By default this is guessed to be the name of the association with a "_type" + # suffix. So a class that defines a <tt>belongs_to :taggable, :polymorphic => true</tt> + # association will use "taggable_type" as the default <tt>:foreign_type</tt>. # [:primary_key] # Specify the method that returns the primary key of associated object used for the association. # By default this is id. |