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require 'active_record'
require 'active_support/time'
class Ourdate
# Construct a daylight saving time safe datetime, with arguments
#--
# FIXME: Note that the arguments should be numbers, not strings -- it works
# with strings arguments only after the 1970 epoch; before, it returns nil.
#++
def self.build_datetime(year, month = 1, day = 1, hour = 0, min = 0, sec = 0, usec = 0)
return nil if year.nil?
default_timezone = if ActiveRecord.respond_to?(:default_timezone)
ActiveRecord.default_timezone
else
ActiveRecord::Base.default_timezone # Rails <= 6.1
end
if default_timezone == :local
# Time.local_time(year, month, day, hour, min, sec, usec).to_datetime
# Behave like oracle_adapter.rb
seconds = sec + Rational(usec, 10**6)
time_array = [year, month, day, hour, min, seconds]
begin
#--
# TODO: Fails unit tests unless we .to_datetime here
# but the risk is we lose the usec component unnecesssarily.
# Investigate removing .to_datetime below.
#++
Time.send(default_timezone, *time_array).to_datetime
rescue
zone_offset = default_timezone == :local ? DateTime.now.offset : 0
# Append zero calendar reform start to account for dates skipped by calendar reform
DateTime.new(*time_array[0..5] << zone_offset << 0) rescue nil
end
else
# Only supports fake GMT time -- needs improvement
# Maybe use Time.zone.local or Time.local_time(year, month, day)
Time.utc(year, month, day, hour, min, sec, usec).to_datetime
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems