module ActiveRecord::AttributeMethods::TimeZoneConversion::ClassMethods

Protected Instance Methods

define_method_attribute=(attr_name) click to toggle source

Defined for all datetime and timestamp attributes when time_zone_aware_attributes are enabled. This enhanced write method will automatically convert the time passed to it to the zone stored in Time.zone.

Calls superclass method
# File lib/active_record/attribute_methods/time_zone_conversion.rb, line 33
        def define_method_attribute=(attr_name)
          if create_time_zone_conversion_attribute?(attr_name, columns_hash[attr_name])
            method_body, line = "              def #{attr_name}=(time)
                time_with_zone = time.respond_to?(:in_time_zone) ? time.in_time_zone : nil
                previous_time = attribute_changed?("#{attr_name}") ? changed_attributes["#{attr_name}"] : read_attribute(:#{attr_name})
                write_attribute(:#{attr_name}, time)
                #{attr_name}_will_change! if previous_time != time_with_zone
                @attributes_cache["#{attr_name}"] = time_with_zone
              end
", __LINE__ + 1
            generated_attribute_methods.module_eval(method_body, __FILE__, line)
          else
            super
          end
        end

Private Instance Methods

create_time_zone_conversion_attribute?(name, column) click to toggle source
# File lib/active_record/attribute_methods/time_zone_conversion.rb, line 51
def create_time_zone_conversion_attribute?(name, column)
  time_zone_aware_attributes &&
    !self.skip_time_zone_conversion_for_attributes.include?(name.to_sym) &&
    [:datetime, :timestamp].include?(column.type)
end