модуль DateAndTime::Calculations

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 308
def all_day
  beginning_of_day..end_of_day
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 319
def all_month
  beginning_of_month..end_of_month
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 324
def all_quarter
  beginning_of_quarter..end_of_quarter
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 314
def all_week(start_day = Date.beginning_of_week)
  beginning_of_week(start_day)..end_of_week(start_day)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 329
def all_year
  beginning_of_year..end_of_year
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 112
def beginning_of_month
  first_hour(change(day: 1))
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 126
def beginning_of_quarter
  first_quarter_month = [10, 7, 4, 1].detect { |m| m <= month }
  beginning_of_month.change(month: first_quarter_month)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 265
def beginning_of_week(start_day = Date.beginning_of_week)
  result = days_ago(days_to_week_start(start_day))
  acts_like?(:time) ? result.midnight : result
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 156
def beginning_of_year
  change(month: 1).beginning_of_month
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 64
def days_ago(days)
  advance(days: -days)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 69
def days_since(days)
  advance(days: days)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 255
def days_to_week_start(start_day = Date.beginning_of_week)
  start_day_number = DAYS_INTO_WEEK[start_day]
  current_day_number = wday != 0 ? wday - 1 : 6
  (current_day_number - start_day_number) % 7
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 294
def end_of_month
  last_day = ::Time.days_in_month(month, year)
  last_hour(days_since(last_day - day))
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 141
def end_of_quarter
  last_quarter_month = [3, 6, 9, 12].detect { |m| m >= month }
  beginning_of_month.change(month: last_quarter_month).end_of_month
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 281
def end_of_week(start_day = Date.beginning_of_week)
  last_hour(days_since(6 - days_to_week_start(start_day)))
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 302
def end_of_year
  change(month: 12).end_of_month
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 49
def future?
  self > self.class.current
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 232
def last_month
  months_ago(1)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 248
def last_year
  years_ago(1)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 273
def monday
  beginning_of_week(:monday)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 84
def months_ago(months)
  advance(months: -months)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 89
def months_since(months)
  advance(months: months)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 34
def next_day(days = 1)
  advance(days: days)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 192
def next_month(months = 1)
  advance(months: months)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 338
def next_occurring(day_of_week)
  current_day_number = wday != 0 ? wday - 1 : 6
  from_now = DAYS_INTO_WEEK.fetch(day_of_week) - current_day_number
  from_now += 7 unless from_now > 0
  advance(days: from_now)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 197
def next_quarter
  months_since(3)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 177
def next_week(given_day_in_next_week = Date.beginning_of_week, same_time: false)
  result = first_hour(weeks_since(1).beginning_of_week.days_since(days_span(given_day_in_next_week)))
  same_time ? copy_time_to(result) : result
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 183
def next_weekday
  if next_day.on_weekend?
    next_week(:monday, same_time: true)
  else
    next_day
  end
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 202
def next_year(years = 1)
  advance(years: years)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 59
def on_weekday?
  !WEEKEND_DAYS.include?(wday)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 54
def on_weekend?
  WEEKEND_DAYS.include?(wday)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 44
def past?
  self < self.class.current
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 24
def prev_day(days = 1)
  advance(days: -days)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 227
def prev_month(months = 1)
  advance(months: -months)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 350
def prev_occurring(day_of_week)
  current_day_number = wday != 0 ? wday - 1 : 6
  ago = current_day_number - DAYS_INTO_WEEK.fetch(day_of_week)
  ago += 7 unless ago > 0
  advance(days: -ago)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 237
def prev_quarter
  months_ago(3)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 210
def prev_week(start_day = Date.beginning_of_week, same_time: false)
  result = first_hour(weeks_ago(1).beginning_of_week.days_since(days_span(start_day)))
  same_time ? copy_time_to(result) : result
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 217
def prev_weekday
  if prev_day.on_weekend?
    copy_time_to(beginning_of_week(:friday))
  else
    prev_day
  end
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 243
def prev_year(years = 1)
  advance(years: -years)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 288
def sunday
  end_of_week(:monday)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 39
def today?
  to_date == ::Date.current
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 29
def tomorrow
  advance(days: 1)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 74
def weeks_ago(weeks)
  advance(weeks: -weeks)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 79
def weeks_since(weeks)
  advance(weeks: weeks)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 94
def years_ago(years)
  advance(years: -years)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 99
def years_since(years)
  advance(years: years)
end

# File activesupport/lib/active_support/core_ext/date_and_time/calculations.rb, line 19
def yesterday
  advance(days: -1)
end