require 'cases/helper' class OverloadedType < ActiveRecord::Base attribute :overloaded_float, :integer attribute :overloaded_string_with_limit, :string, limit: 50 attribute :non_existent_decimal, :decimal attribute :string_with_default, :string, default: 'the overloaded default' end class ChildOfOverloadedType < OverloadedType end class GrandchildOfOverloadedType < ChildOfOverloadedType attribute :overloaded_float, :float end class UnoverloadedType < ActiveRecord::Base self.table_name = 'overloaded_types' end module ActiveRecord class CustomPropertiesTest < ActiveRecord::TestCase test "overloading types" do data = OverloadedType.new data.overloaded_float = "1.1" data.unoverloaded_float = "1.1" assert_equal 1, data.overloaded_float assert_equal 1.1, data.unoverloaded_float end test "overloaded properties save" do data = OverloadedType.new data.overloaded_float = "2.2" data.save! data.reload assert_equal 2, data.overloaded_float assert_kind_of Integer, OverloadedType.last.overloaded_float assert_equal 2.0, UnoverloadedType.last.overloaded_float assert_kind_of Float, UnoverloadedType.last.overloaded_float end test "properties assigned in constructor" do data = OverloadedType.new(overloaded_float: '3.3') assert_equal 3, data.overloaded_float end test "overloaded properties with limit" do assert_equal 50, OverloadedType.type_for_attribute('overloaded_string_with_limit').limit assert_equal 255, UnoverloadedType.type_for_attribute('overloaded_string_with_limit').limit end test "nonexistent attribute" do data = OverloadedType.new(non_existent_decimal: 1) assert_equal BigDecimal.new(1), data.non_existent_decimal assert_raise ActiveRecord::UnknownAttributeError do UnoverloadedType.new(non_existent_decimal: 1) end end test "model with nonexistent attribute with default value can be saved" do klass = Class.new(OverloadedType) do attribute :non_existent_string_with_default, :string, default: 'nonexistent' end model = klass.new assert model.save end test "changing defaults" do data = OverloadedType.new unoverloaded_data = UnoverloadedType.new assert_equal 'the overloaded default', data.string_with_default assert_equal 'the original default', unoverloaded_data.string_with_default end test "defaults are not touched on the columns" do assert_equal 'the original default', OverloadedType.columns_hash['string_with_default'].default end test "children inherit custom properties" do data = ChildOfOverloadedType.new(overloaded_float: '4.4') assert_equal 4, data.overloaded_float end test "children can override parents" do data = GrandchildOfOverloadedType.new(overloaded_float: '4.4') assert_equal 4.4, data.overloaded_float end test "overloading properties does not attribute method order" do attribute_names = OverloadedType.attribute_names assert_equal %w(id overloaded_float unoverloaded_float overloaded_string_with_limit string_with_default non_existent_decimal), attribute_names end test "caches are cleared" do klass = Class.new(OverloadedType) assert_equal 6, klass.attribute_types.length assert_equal 6, klass.column_defaults.length assert_not klass.attribute_types.include?('wibble') klass.attribute :wibble, Type::Value.new assert_equal 7, klass.attribute_types.length assert_equal 7, klass.column_defaults.length assert klass.attribute_types.include?('wibble') end test "the given default value is cast from user" do custom_type = Class.new(Type::Value) do def cast(*) "from user" end def deserialize(*) "from database" end end klass = Class.new(OverloadedType) do attribute :wibble, custom_type.new, default: "default" end model = klass.new assert_equal "from user", model.wibble end test "procs for default values" do klass = Class.new(OverloadedType) do @@counter = 0 attribute :counter, :integer, default: -> { @@counter += 1 } end assert_equal 1, klass.new.counter assert_equal 2, klass.new.counter end test "procs are memoized before type casting" do klass = Class.new(OverloadedType) do @@counter = 0 attribute :counter, :integer, default: -> { @@counter += 1 } end model = klass.new assert_equal 1, model.counter_before_type_cast assert_equal 1, model.counter_before_type_cast end test "user provided defaults are persisted even if unchanged" do model = OverloadedType.create! assert_equal "the overloaded default", model.reload.string_with_default end if current_adapter?(:PostgreSQLAdapter) test "array types can be specified" do klass = Class.new(OverloadedType) do attribute :my_array, :string, limit: 50, array: true attribute :my_int_array, :integer, array: true end string_array = ConnectionAdapters::PostgreSQL::OID::Array.new( Type::String.new(limit: 50)) int_array = ConnectionAdapters::PostgreSQL::OID::Array.new( Type::Integer.new) assert_not_equal string_array, int_array assert_equal string_array, klass.type_for_attribute("my_array") assert_equal int_array, klass.type_for_attribute("my_int_array") end test "range types can be specified" do klass = Class.new(OverloadedType) do attribute :my_range, :string, limit: 50, range: true attribute :my_int_range, :integer, range: true end string_range = ConnectionAdapters::PostgreSQL::OID::Range.new( Type::String.new(limit: 50)) int_range = ConnectionAdapters::PostgreSQL::OID::Range.new( Type::Integer.new) assert_not_equal string_range, int_range assert_equal string_range, klass.type_for_attribute("my_range") assert_equal int_range, klass.type_for_attribute("my_int_range") end end test "attributes added after subclasses load are inherited" do parent = Class.new(ActiveRecord::Base) do self.table_name = "topics" end child = Class.new(parent) child.new # => force a schema load parent.attribute(:foo, Type::Value.new) assert_equal(:bar, child.new(foo: :bar).foo) end test "attributes not backed by database columns are not dirty when unchanged" do refute OverloadedType.new.non_existent_decimal_changed? end test "attributes not backed by database columns are always initialized" do OverloadedType.create! model = OverloadedType.first assert_nil model.non_existent_decimal model.non_existent_decimal = "123" assert_equal 123, model.non_existent_decimal end test "attributes not backed by database columns return the default on models loaded from database" do child = Class.new(OverloadedType) do attribute :non_existent_decimal, :decimal, default: 123 end child.create! model = child.first assert_equal 123, model.non_existent_decimal end test "attributes not backed by database columns properly interact with mutation and dirty" do child = Class.new(ActiveRecord::Base) do self.table_name = "topics" attribute :foo, :string, default: "lol" end child.create! model = child.first assert_equal "lol", model.foo model.foo << "asdf" assert_equal "lolasdf", model.foo assert model.foo_changed? model.reload assert_equal "lol", model.foo model.foo = "lol" refute model.changed? end end end