activemodel/lib/active_model/type/time.rb
# frozen_string_literal: true
module ActiveModel
module Type
# = Active Model \Time \Type
#
# Attribute type for time of day representation. It is registered under the
# +:time+ key.
#
# class Event
# include ActiveModel::Attributes
#
# attribute :start, :time
# end
#
# String values are parsed using the ISO 8601 datetime format, but are
# normalized to have a date of 2000-01-01 and be in the UTC time zone.
#
# event = Event.new
# event.start = "2004-10-25T01:23:45-06:00"
#
# event.start.class # => Time
# event.start # => 2000-01-01 07:23:45 UTC
#
# Partial time-only formats are also accepted.
#
# event.start = "00:01:02+03:00"
# event.start # => 1999-12-31 21:01:02 UTC
#
# The degree of sub-second precision can be customized when declaring an
# attribute:
#
# class Event
# include ActiveModel::Attributes
#
# attribute :start, :time, precision: 4
# end
class Time < Value
include Helpers::Timezone
include Helpers::AcceptsMultiparameterTime.new(
defaults: { 1 => 2000, 2 => 1, 3 => 1, 4 => 0, 5 => 0 }
)
include Helpers::TimeValue
def type
:time
end
def user_input_in_time_zone(value)
return unless value.present?
case value
when ::String
value = "2000-01-01 #{value}"
time_hash = begin
::Date._parse(value)
rescue ArgumentError
end
return if time_hash.nil? || time_hash[:hour].nil?
when ::Time
value = value.change(year: 2000, day: 1, month: 1)
end
super(value)
end
private
def cast_value(value)
return apply_seconds_precision(value) unless value.is_a?(::String)
return if value.blank?
dummy_time_value = value.sub(/\A\d{4}-\d\d-\d\d(?:T|\s)|/, "2000-01-01 ")
fast_string_to_time(dummy_time_value) || begin
time_hash = begin
::Date._parse(dummy_time_value)
rescue ArgumentError
end
return if time_hash.nil? || time_hash[:hour].nil?
new_time(*time_hash.values_at(:year, :mon, :mday, :hour, :min, :sec, :sec_fraction, :offset))
end
end
end
end
end