Method: RiCal::FastDateTime#nth_wday_in_year

Defined in:
lib/ri_cal/fast_date_time.rb

#nth_wday_in_year(n, which_wday) ⇒ Object

e.g. to obtain the 2nd Monday of the receivers year use

time.nth_wday_in_year(2, 1)



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# File 'lib/ri_cal/fast_date_time.rb', line 185

def nth_wday_in_year(n, which_wday)
  if n > 0
    first_of_year = change(:month => 1, :day => 1)
    first_in_year = first_of_year.advance(:days => (which_wday - first_of_year.wday + 7) % 7)
    first_in_year.advance(:days => (7*(n - 1)))
  else
    december25 = change(:month => 12, :day => 25)
    last_in_year = december25.advance(:days => (which_wday - december25.wday + 7) % 7)
    last_in_year.advance(:days => (7 * (n + 1)))
  end
end