Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
branch: 4-1-stable
Fetching contributors…

Cannot retrieve contributors at this time

72 lines (62 sloc) 2.478 kB
module ActiveRecord
module AttributeMethods
module TimeZoneConversion
class Type # :nodoc:
def initialize(column)
@column = column
end
def type_cast(value)
value = @column.type_cast(value)
value.acts_like?(:time) ? value.in_time_zone : value
end
def type
@column.type
end
end
extend ActiveSupport::Concern
included do
mattr_accessor :time_zone_aware_attributes, instance_writer: false
self.time_zone_aware_attributes = false
class_attribute :skip_time_zone_conversion_for_attributes, instance_writer: false
self.skip_time_zone_conversion_for_attributes = []
end
module ClassMethods
protected
# 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.
def define_method_attribute=(attr_name)
if create_time_zone_conversion_attribute?(attr_name, columns_hash[attr_name])
method_body, line = <<-EOV, __LINE__ + 1
def #{attr_name}=(time)
time_with_zone = convert_value_to_time_zone("#{attr_name}", time)
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
EOV
generated_attribute_methods.module_eval(method_body, __FILE__, line)
else
super
end
end
private
def create_time_zone_conversion_attribute?(name, column)
time_zone_aware_attributes &&
!self.skip_time_zone_conversion_for_attributes.include?(name.to_sym) &&
(:datetime == column.type || :timestamp == column.type)
end
end
private
def convert_value_to_time_zone(attr_name, value)
if value.is_a?(Array)
value.map { |v| convert_value_to_time_zone(attr_name, v) }
elsif value.respond_to?(:in_time_zone)
value.in_time_zone || self.class.columns_hash[attr_name].type_cast(value)
else
nil
end
end
end
end
end
Jump to Line
Something went wrong with that request. Please try again.