Module: PartitionGardener::DateCalendar

Defined in:
lib/partition_gardener/date_calendar.rb

Class Method Summary collapse

Class Method Details

.add_days(date, count) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 34

def add_days(date, count)
  to_date(date) + count
end

.add_months(date, count) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 59

def add_months(date, count)
  base = beginning_of_month(date)
  month_index = (base.year * 12) + (base.month - 1) + count
  Date.new(month_index / 12, (month_index % 12) + 1, 1)
end

.add_quarters(date, count) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 42

def add_quarters(date, count)
  add_months(date, count * 3)
end

.add_weeks(date, count) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 38

def add_weeks(date, count)
  add_days(date, count * 7)
end

.add_years(date, count) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 54

def add_years(date, count)
  value = to_date(date)
  Date.new(value.year + count, value.month, value.day)
end

.beginning_of_day(date) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 19

def beginning_of_day(date)
  to_date(date)
end

.beginning_of_month(date) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 9

def beginning_of_month(date)
  value = to_date(date)
  Date.new(value.year, value.month, 1)
end

.beginning_of_quarter(date) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 28

def beginning_of_quarter(date)
  value = to_date(date)
  quarter_month = ((value.month - 1) / 3) * 3 + 1
  Date.new(value.year, quarter_month, 1)
end

.beginning_of_week(date) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 23

def beginning_of_week(date)
  value = to_date(date)
  value - ((value.wday + 6) % 7)
end

.beginning_of_year(date) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 14

def beginning_of_year(date)
  value = to_date(date)
  Date.new(value.year, 1, 1)
end

.next_month(date) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 46

def next_month(date)
  add_months(beginning_of_month(date), 1)
end

.next_year(date) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 50

def next_year(date)
  Date.new(to_date(date).year + 1, 1, 1)
end

.to_date(value) ⇒ Object 



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# File 'lib/partition_gardener/date_calendar.rb', line 5

def to_date(value)
  value.respond_to?(:to_date) ? value.to_date : Date.parse(value.to_s)
end