/
date.rb
78 lines (69 loc) · 1.97 KB
/
date.rb
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# frozen_string_literal: true
module ActiveModel
module Type
# = Active Model \Date \Type
#
# Attribute type for date representation. It is registered under the
# +:date+ key.
#
# class Person
# include ActiveModel::Attributes
#
# attribute :birthday, :date
# end
#
# person = Person.new
# person.birthday = "1989-07-13"
#
# person.birthday.class # => Date
# person.birthday.year # => 1989
# person.birthday.month # => 7
# person.birthday.day # => 13
#
# String values are parsed using the ISO 8601 date format. Any other values
# are cast using their +to_date+ method, if it exists.
class Date < Value
include Helpers::Timezone
include Helpers::AcceptsMultiparameterTime.new
def type
:date
end
def type_cast_for_schema(value)
value.to_fs(:db).inspect
end
private
def cast_value(value)
if value.is_a?(::String)
return if value.empty?
fast_string_to_date(value) || fallback_string_to_date(value)
elsif value.respond_to?(:to_date)
value.to_date
else
value
end
end
ISO_DATE = /\A(\d{4})-(\d\d)-(\d\d)\z/
def fast_string_to_date(string)
if string =~ ISO_DATE
new_date $1.to_i, $2.to_i, $3.to_i
end
end
def fallback_string_to_date(string)
parts = begin
::Date._parse(string, false)
rescue ArgumentError
end
new_date(*parts.values_at(:year, :mon, :mday)) if parts
end
def new_date(year, mon, mday)
unless year.nil? || (year == 0 && mon == 0 && mday == 0)
::Date.new(year, mon, mday) rescue nil
end
end
def value_from_multiparameter_assignment(*)
time = super
time && new_date(time.year, time.mon, time.mday)
end
end
end
end