diff options
Diffstat (limited to 'activerecord/lib/active_record/associations.rb')
| -rw-r--r-- | activerecord/lib/active_record/associations.rb | 49 |
1 files changed, 37 insertions, 12 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb index 19308643f3..4606c91ffd 100644 --- a/activerecord/lib/active_record/associations.rb +++ b/activerecord/lib/active_record/associations.rb @@ -97,6 +97,16 @@ module ActiveRecord end end + class HasManyThroughOrderError < ActiveRecordError #:nodoc: + def initialize(owner_class_name = nil, reflection = nil, through_reflection = nil) + if owner_class_name && reflection && through_reflection + super("Cannot have a has_many :through association '#{owner_class_name}##{reflection.name}' which goes through '#{owner_class_name}##{through_reflection.name}' before the through association is defined.") + else + super("Cannot have a has_many :through association before the through association is defined.") + end + end + end + class ThroughCantAssociateThroughHasOneOrManyReflection < ActiveRecordError #:nodoc: def initialize(owner = nil, reflection = nil) if owner && reflection @@ -107,6 +117,21 @@ module ActiveRecord end end + class AmbiguousSourceReflectionForThroughAssociation < ActiveRecordError # :nodoc: + def initialize(klass, macro, association_name, options, possible_sources) + example_options = options.dup + example_options[:source] = possible_sources.first + + super("Ambiguous source reflection for through association. Please " \ + "specify a :source directive on your declaration like:\n" \ + "\n" \ + " class #{klass} < ActiveRecord::Base\n" \ + " #{macro} :#{association_name}, #{example_options}\n" \ + " end" + ) + end + end + class HasManyThroughCantAssociateThroughHasOneOrManyReflection < ThroughCantAssociateThroughHasOneOrManyReflection #:nodoc: end @@ -260,11 +285,11 @@ module ActiveRecord private # Clears out the association cache. - def clear_association_cache # :nodoc: + def clear_association_cache @association_cache.clear if persisted? end - def init_internals # :nodoc: + def init_internals @association_cache = {} super end @@ -354,23 +379,23 @@ module ActiveRecord # # === Overriding generated methods # - # Association methods are generated in a module that is included into the model class, - # which allows you to easily override with your own methods and call the original - # generated method with +super+. For example: + # Association methods are generated in a module included into the model + # class, making overrides easy. The original generated method can thus be + # called with +super+: # # class Car < ActiveRecord::Base # belongs_to :owner # belongs_to :old_owner + # # def owner=(new_owner) # self.old_owner = self.owner # super # end # end # - # If your model class is <tt>Project</tt>, then the module is - # named <tt>Project::GeneratedAssociationMethods</tt>. The +GeneratedAssociationMethods+ module is - # included in the model class immediately after the (anonymous) generated attributes methods - # module, meaning an association will override the methods for an attribute with the same name. + # The association methods module is included immediately after the + # generated attributes methods module, meaning an association will + # override the methods for an attribute with the same name. # # == Cardinality and associations # @@ -1802,7 +1827,7 @@ module ActiveRecord builder = Builder::HasAndBelongsToMany.new name, self, options - join_model = builder.through_model + join_model = ActiveSupport::Deprecation.silence { builder.through_model } const_set join_model.name, join_model private_constant join_model.name @@ -1831,8 +1856,8 @@ module ActiveRecord hm_options[k] = options[k] if options.key? k end - has_many name, scope, hm_options, &extension - self._reflections[name.to_s].parent_reflection = habtm_reflection + ActiveSupport::Deprecation.silence { has_many name, scope, hm_options, &extension } + _reflections[name.to_s].parent_reflection = habtm_reflection end end end |