@@ -180,10 +180,14 @@ module ActiveRecord # and the Proc should return either +true+ or +false+. When no Proc # is specified a record will be built for all attribute hashes that # do not have a <tt>_delete</tt> that evaluates to true. + # Passing <tt>:all_blank</tt> instead of a Proc will create a proc + # that will reject a record where all the attributes are blank. # # Examples: # # creates avatar_attributes= # accepts_nested_attributes_for :avatar, :reject_if => proc { |attributes| attributes['name'].blank? } + # # creates avatar_attributes= + # accepts_nested_attributes_for :avatar, :reject_if => :all_blank # # creates avatar_attributes= and posts_attributes= # accepts_nested_attributes_for :avatar, :posts, :allow_destroy => true def accepts_nested_attributes_for(*attr_names) @@ -201,7 +205,12 @@ module ActiveRecord end reflection.options[:autosave] = true - self.reject_new_nested_attributes_procs[association_name.to_sym] = options[:reject_if] + + self.reject_new_nested_attributes_procs[association_name.to_sym] = if options[:reject_if] == :all_blank + proc { |attributes| attributes.all? {|k,v| v.blank?} } + else + options[:reject_if] + end # def pirate_attributes=(attributes) # assign_nested_attributes_for_one_to_one_association(:pirate, attributes, false) activerecord/lib/active_record/nested_attributes.rb @@ -31,11 +31,27 @@ class TestNestedAttributesInGeneral < ActiveRecord::TestCase end def test_should_add_a_proc_to_reject_new_nested_attributes_procs - [:parrots, :birds].each do |name| + [:parrots, :birds, :birds_with_reject_all_blank].each do |name| assert_instance_of Proc, Pirate.reject_new_nested_attributes_procs[name] end end + def test_should_not_build_a_new_record_if_reject_all_blank_returns_false + pirate = Pirate.create!(:catchphrase => "Don' botharrr talkin' like one, savvy?") + pirate.birds_with_reject_all_blank_attributes = [{:name => '', :color => ''}] + pirate.save! + + assert pirate.birds_with_reject_all_blank.empty? + end + + def test_should_build_a_new_record_if_reject_all_blank_does_not_return_false + pirate = Pirate.create!(:catchphrase => "Don' botharrr talkin' like one, savvy?") + pirate.birds_with_reject_all_blank_attributes = [{:name => 'Tweetie', :color => ''}] + pirate.save! + + assert_equal 1, pirate.birds_with_reject_all_blank.count + end + def test_should_raise_an_ArgumentError_for_non_existing_associations assert_raise_with_message ArgumentError, "No association found for name `honesty'. Has it been defined yet?" do Pirate.accepts_nested_attributes_for :honesty activerecord/test/cases/nested_attributes_test.rb @@ -28,11 +28,13 @@ class Pirate < ActiveRecord::Base :after_add => proc {|p,b| p.ship_log << "after_adding_proc_bird_#{b.id || '<new>'}"}, :before_remove => proc {|p,b| p.ship_log << "before_removing_proc_bird_#{b.id}"}, :after_remove => proc {|p,b| p.ship_log << "after_removing_proc_bird_#{b.id}"} + has_many :birds_with_reject_all_blank, :class_name => "Bird" accepts_nested_attributes_for :parrots, :birds, :allow_destroy => true, :reject_if => proc { |attributes| attributes.empty? } accepts_nested_attributes_for :ship, :allow_destroy => true, :reject_if => proc { |attributes| attributes.empty? } accepts_nested_attributes_for :parrots_with_method_callbacks, :parrots_with_proc_callbacks, :birds_with_method_callbacks, :birds_with_proc_callbacks, :allow_destroy => true + accepts_nested_attributes_for :birds_with_reject_all_blank, :reject_if => :all_blank validates_presence_of :catchphrase activerecord/test/models/pirate.rb @@ -57,6 +57,7 @@ ActiveRecord::Schema.define do create_table :birds, :force => true do |t| t.string :name + t.string :color t.integer :pirate_id end activerecord/test/schema/schema.rb 026b78f9076216990bddb1aa5d83d23a647c02a5 Mike Breen hardbap hardbap@gmail.com http://github.com/rails/rails/commit/9010ed27559ed5ab89ea71b4b16f4c8e56d03dbb 9010ed27559ed5ab89ea71b4b16f4c8e56d03dbb 2009-05-09T20:02:00-07:00 2009-05-09T20:02:00-07:00 Allow you to pass :all_blank to :reject_if option to automatically create a Proc that will reject any record with blank attributes. cc6198a10a89e8a7017f2f38368e94bdd8348ad6 Michael Koziarski NZKoz michael@koziarski.com