diff options
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index d1752a25ff..2116a94980 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -1077,7 +1077,8 @@ module ActiveRecord # alongside this object by calling their +destroy+ method. If set to <tt>:delete_all</tt> all associated # objects are deleted *without* calling their +destroy+ method. If set to <tt>:nullify</tt> all associated # objects' foreign keys are set to +NULL+ *without* calling their +save+ callbacks. If set to - # <tt>:restrict</tt> this object cannot be deleted if it has any associated object. + # <tt>:restrict</tt> this object raises an <tt>ActiveRecord::DeleteRestrictionError</tt> exception and + # cannot be deleted if it has any associated objects. # # If using with the <tt>:through</tt> option, the association on the join model must be # a +belongs_to+, and the records which get deleted are the join records, rather than @@ -1226,7 +1227,8 @@ module ActiveRecord # If set to <tt>:destroy</tt>, the associated object is destroyed when this object is. If set to # <tt>:delete</tt>, the associated object is deleted *without* calling its destroy method. # If set to <tt>:nullify</tt>, the associated object's foreign key is set to +NULL+. - # Also, association is assigned. + # Also, association is assigned. If set to <tt>:restrict</tt> this object raises an + # <tt>ActiveRecord::DeleteRestrictionError</tt> exception and cannot be deleted if it has any associated object. # [: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 |