diff options
Diffstat (limited to 'activerecord/lib/active_record/associations.rb')
-rwxr-xr-x | activerecord/lib/active_record/associations.rb | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index fc6f15206a..0fcd288fc5 100755 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -61,6 +61,12 @@ module ActiveRecord end end + class HasAndBelongsToManyAssociationWithPrimaryKeyError < ActiveRecordError #:nodoc: + def initialize(reflection) + super("Primary key is not allowed in a has_and_belongs_to_many join table (#{reflection.options[:join_table]}).") + end + end + class HasAndBelongsToManyAssociationForeignKeyNeeded < ActiveRecordError #:nodoc: def initialize(reflection) super("Cannot create self referential has_and_belongs_to_many association on '#{reflection.class_name rescue nil}##{reflection.name rescue nil}'. :association_foreign_key cannot be the same as the :foreign_key.") @@ -1675,7 +1681,6 @@ module ActiveRecord def create_has_and_belongs_to_many_reflection(association_id, options, &extension) options.assert_valid_keys(valid_keys_for_has_and_belongs_to_many_association) - options[:extend] = create_extension_modules(association_id, extension, options[:extend]) reflection = create_reflection(:has_and_belongs_to_many, association_id, options, self) @@ -1685,6 +1690,9 @@ module ActiveRecord end reflection.options[:join_table] ||= join_table_name(undecorated_table_name(self.to_s), undecorated_table_name(reflection.class_name)) + if connection.supports_primary_key? && (connection.primary_key(reflection.options[:join_table]) rescue false) + raise HasAndBelongsToManyAssociationWithPrimaryKeyError.new(reflection) + end reflection end |