require 'cases/helper' require 'models/topic' # For booleans require 'models/pirate' # For timestamps require 'models/parrot' class Pirate # Just reopening it, not defining it attr_accessor :detected_changes_in_after_update # Boolean for if changes are detected attr_accessor :changes_detected_in_after_update # Actual changes after_update :check_changes private # after_save/update in sweepers, observers, and the model itself # can end up checking dirty status and acting on the results def check_changes if self.changed? self.detected_changes_in_after_update = true self.changes_detected_in_after_update = self.changes end end end class DirtyTest < ActiveRecord::TestCase def test_attribute_changes # New record - no changes. pirate = Pirate.new assert !pirate.catchphrase_changed? assert_nil pirate.catchphrase_change # Change catchphrase. pirate.catchphrase = 'arrr' assert pirate.catchphrase_changed? assert_nil pirate.catchphrase_was assert_equal [nil, 'arrr'], pirate.catchphrase_change # Saved - no changes. pirate.save! assert !pirate.catchphrase_changed? assert_nil pirate.catchphrase_change # Same value - no changes. pirate.catchphrase = 'arrr' assert !pirate.catchphrase_changed? assert_nil pirate.catchphrase_change end def test_object_should_be_changed_if_any_attribute_is_changed pirate = Pirate.new assert !pirate.changed? assert_equal [], pirate.changed assert_equal Hash.new, pirate.changes pirate.catchphrase = 'arrr' assert pirate.changed? assert_nil pirate.catchphrase_was assert_equal %w(catchphrase), pirate.changed assert_equal({'catchphrase' => [nil, 'arrr']}, pirate.changes) pirate.save assert !pirate.changed? assert_equal [], pirate.changed assert_equal Hash.new, pirate.changes end def test_attribute_will_change! pirate = Pirate.create!(:catchphrase => 'arr') pirate.catchphrase << ' matey' assert !pirate.catchphrase_changed? assert pirate.catchphrase_will_change! assert pirate.catchphrase_changed? assert_equal ['arr matey', 'arr matey'], pirate.catchphrase_change pirate.catchphrase << '!' assert pirate.catchphrase_changed? assert_equal ['arr matey', 'arr matey!'], pirate.catchphrase_change end def test_association_assignment_changes_foreign_key pirate = Pirate.create! pirate.parrot = Parrot.create! assert pirate.changed? assert_equal %w(parrot_id), pirate.changed end def test_attribute_should_be_compared_with_type_cast topic = Topic.new assert topic.approved? assert !topic.approved_changed? # Coming from web form. params = {:topic => {:approved => 1}} # In the controller. topic.attributes = params[:topic] assert topic.approved? assert !topic.approved_changed? end def test_partial_update pirate = Pirate.new(:catchphrase => 'foo') old_updated_on = 1.hour.ago.beginning_of_day with_partial_updates Pirate, false do assert_queries(2) { 2.times { pirate.save! } } Pirate.update_all({ :updated_on => old_updated_on }, :id => pirate.id) end with_partial_updates Pirate, true do assert_queries(0) { 2.times { pirate.save! } } assert_equal old_updated_on, pirate.reload.updated_on assert_queries(1) { pirate.catchphrase = 'bar'; pirate.save! } assert_not_equal old_updated_on, pirate.reload.updated_on end end private def with_partial_updates(klass, on = true) old = klass.partial_updates? klass.partial_updates = on yield ensure klass.partial_updates = old end end