Module: TZInfo::OffsetRationals
- Defined in:
- lib/active_support/vendor/tzinfo-0.3.8/tzinfo/offset_rationals.rb
Overview
Provides a method for getting Rationals for a timezone offset in seconds. Pre-reduced rationals are returned for all the half-hour intervals between -14 and +14 hours to avoid having to call gcd at runtime.
Constant Summary collapse
- @@rational_cache =
:nodoc:
{ -50400 => Rational(-7,12), -48600 => Rational(-9,16), -46800 => Rational(-13,24), -45000 => Rational(-25,48), -43200 => Rational(-1,2), -41400 => Rational(-23,48), -39600 => Rational(-11,24), -37800 => Rational(-7,16), -36000 => Rational(-5,12), -34200 => Rational(-19,48), -32400 => Rational(-3,8), -30600 => Rational(-17,48), -28800 => Rational(-1,3), -27000 => Rational(-5,16), -25200 => Rational(-7,24), -23400 => Rational(-13,48), -21600 => Rational(-1,4), -19800 => Rational(-11,48), -18000 => Rational(-5,24), -16200 => Rational(-3,16), -14400 => Rational(-1,6), -12600 => Rational(-7,48), -10800 => Rational(-1,8), -9000 => Rational(-5,48), -7200 => Rational(-1,12), -5400 => Rational(-1,16), -3600 => Rational(-1,24), -1800 => Rational(-1,48), 0 => Rational(0,1), 1800 => Rational(1,48), 3600 => Rational(1,24), 5400 => Rational(1,16), 7200 => Rational(1,12), 9000 => Rational(5,48), 10800 => Rational(1,8), 12600 => Rational(7,48), 14400 => Rational(1,6), 16200 => Rational(3,16), 18000 => Rational(5,24), 19800 => Rational(11,48), 21600 => Rational(1,4), 23400 => Rational(13,48), 25200 => Rational(7,24), 27000 => Rational(5,16), 28800 => Rational(1,3), 30600 => Rational(17,48), 32400 => Rational(3,8), 34200 => Rational(19,48), 36000 => Rational(5,12), 37800 => Rational(7,16), 39600 => Rational(11,24), 41400 => Rational(23,48), 43200 => Rational(1,2), 45000 => Rational(25,48), 46800 => Rational(13,24), 48600 => Rational(9,16), 50400 => Rational(7,12)}
Class Method Summary collapse
-
.rational_for_offset(offset) ⇒ Object
Returns a Rational expressing the fraction of a day that offset in seconds represents (i.e. equivalent to Rational(offset, 86400)).
Class Method Details
.rational_for_offset(offset) ⇒ Object
Returns a Rational expressing the fraction of a day that offset in seconds represents (i.e. equivalent to Rational(offset, 86400)).
90 91 92 |
# File 'lib/active_support/vendor/tzinfo-0.3.8/tzinfo/offset_rationals.rb', line 90 def rational_for_offset(offset) @@rational_cache[offset] || Rational(offset, 86400) end |