Module: Timing::Helpers

Included in:
Timing
Defined in:
lib/timing/helpers.rb

Constant Summary collapse

MONTH_DAYS = 
[31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]

Instance Method Summary collapse

Instance Method Details

#beginning_of_day(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 14

def beginning_of_day(time)
  TimeInZone.parse time.strftime('%Y-%m-%d 00:00:00 %z')
end

#beginning_of_hour(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 6

def beginning_of_hour(time)
  TimeInZone.parse time.strftime('%Y-%m-%d %H:00:00 %z')
end

#beginning_of_month(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 32

def beginning_of_month(time)
  TimeInZone.parse time.strftime('%Y-%m-01 00:00:00 %z')
end

#beginning_of_week(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 22

def beginning_of_week(time)
  date = beginning_of_day time
  date - Interval.days(date.wday)
end

#beginning_of_year(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 40

def beginning_of_year(time)
  TimeInZone.parse time.strftime('%Y-01-01 00:00:00 %z')
end

#days_in_month(month, year = nil) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 48

def days_in_month(month, year=nil)
  return 29 if month == 2 && Date.leap?(year || TimeInZone.now.year)
  MONTH_DAYS[month-1]
end

#end_of_day(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 18

def end_of_day(time)
  TimeInZone.parse time.strftime('%Y-%m-%d 23:59:59 %z')
end

#end_of_hour(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 10

def end_of_hour(time)
  TimeInZone.parse time.strftime('%Y-%m-%d %H:59:59 %z')
end

#end_of_month(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 36

def end_of_month(time)
  TimeInZone.parse time.strftime("%Y-%m-#{days_in_month(time.month, time.year)} 23:59:59 %z")
end

#end_of_week(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 27

def end_of_week(time)
  date = end_of_day time
  date + Interval.days(6 - date.wday)
end

#end_of_year(time) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 44

def end_of_year(time)
  TimeInZone.parse time.strftime('%Y-12-31 23:59:59 %z')
end

#months_after(time, count) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 58

def months_after(time, count)
  diff = ((time.to_datetime >> count) - time.to_datetime).to_f
  TimeInZone.new time + Interval.days(diff), time.utc_offset
end

#months_ago(time, count) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 53

def months_ago(time, count)
  diff = (time.to_datetime - (time.to_datetime << count)).to_f
  TimeInZone.new time - Interval.days(diff), time.utc_offset
end

#years_after(time, count) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 67

def years_after(time, count)
  months_after time, count * 12
end

#years_ago(time, count) ⇒ Object 



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# File 'lib/timing/helpers.rb', line 63

def years_ago(time, count)
  months_ago time, count * 12
end