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module ActiveRecord
module Type
class DateTime < Value # :nodoc:
include Helpers::TimeValue
include Helpers::AcceptsMultiparameterTime.new(
defaults: { 4 => 0, 5 => 0 }
)
def type
:datetime
end
def type_cast_for_database(value)
if precision && value.respond_to?(:usec)
number_of_insignificant_digits = 6 - precision
round_power = 10 ** number_of_insignificant_digits
value = value.change(usec: value.usec / round_power * round_power)
end
if value.acts_like?(:time)
zone_conversion_method = ActiveRecord::Base.default_timezone == :utc ? :getutc : :getlocal
if value.respond_to?(zone_conversion_method)
value = value.send(zone_conversion_method)
end
end
value
end
private
def cast_value(string)
return string unless string.is_a?(::String)
return if string.empty?
fast_string_to_time(string) || fallback_string_to_time(string)
end
# '0.123456' -> 123456
# '1.123456' -> 123456
def microseconds(time)
time[:sec_fraction] ? (time[:sec_fraction] * 1_000_000).to_i : 0
end
def fallback_string_to_time(string)
time_hash = ::Date._parse(string)
time_hash[:sec_fraction] = microseconds(time_hash)
new_time(*time_hash.values_at(:year, :mon, :mday, :hour, :min, :sec, :sec_fraction, :offset))
end
def value_from_multiparameter_assignment(values_hash)
missing_parameter = (1..3).detect { |key| !values_hash.key?(key) }
if missing_parameter
raise ArgumentError, missing_parameter
end
super
end
end
end
end
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