diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/time/calculations.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/time/calculations.rb | 114 |
1 files changed, 86 insertions, 28 deletions
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb index 5e433f5dd9..1434e186c3 100644 --- a/activesupport/lib/active_support/core_ext/time/calculations.rb +++ b/activesupport/lib/active_support/core_ext/time/calculations.rb @@ -1,10 +1,17 @@ require 'active_support/duration' -require 'active_support/core_ext/time/zones' require 'active_support/core_ext/time/conversions' class Time COMMON_YEAR_DAYS_IN_MONTH = [nil, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] - DAYS_INTO_WEEK = { :monday => 0, :tuesday => 1, :wednesday => 2, :thursday => 3, :friday => 4, :saturday => 5, :sunday => 6 } + DAYS_INTO_WEEK = { + :monday => 0, + :tuesday => 1, + :wednesday => 2, + :thursday => 3, + :friday => 4, + :saturday => 5, + :sunday => 6 + } class << self # Overriding case equality method so that it returns true for ActiveSupport::TimeWithZone instances @@ -15,8 +22,11 @@ class Time # Return the number of days in the given month. # If no year is specified, it will use the current year. def days_in_month(month, year = now.year) - return 29 if month == 2 && ::Date.gregorian_leap?(year) - COMMON_YEAR_DAYS_IN_MONTH[month] + if month == 2 && ::Date.gregorian_leap?(year) + 29 + else + COMMON_YEAR_DAYS_IN_MONTH[month] + end end # Returns a new Time if requested year can be accommodated by Ruby's Time class @@ -24,8 +34,13 @@ class Time # otherwise returns a DateTime. def time_with_datetime_fallback(utc_or_local, year, month=1, day=1, hour=0, min=0, sec=0, usec=0) time = ::Time.send(utc_or_local, year, month, day, hour, min, sec, usec) + # This check is needed because Time.utc(y) returns a time object in the 2000s for 0 <= y <= 138. - time.year == year ? time : ::DateTime.civil_from_format(utc_or_local, year, month, day, hour, min, sec) + if time.year == year + time + else + ::DateTime.civil_from_format(utc_or_local, year, month, day, hour, min, sec) + end rescue ::DateTime.civil_from_format(utc_or_local, year, month, day, hour, min, sec) end @@ -67,18 +82,18 @@ class Time end # Returns a new Time where one or more of the elements have been changed according to the +options+ parameter. The time options - # (hour, minute, sec, usec) reset cascadingly, so if only the hour is passed, then minute, sec, and usec is set to 0. If the hour and + # (hour, min, sec, usec) reset cascadingly, so if only the hour is passed, then minute, sec, and usec is set to 0. If the hour and # minute is passed, then sec and usec is set to 0. def change(options) ::Time.send( utc? ? :utc_time : :local_time, - options[:year] || year, - options[:month] || month, - options[:day] || day, - options[:hour] || hour, - options[:min] || (options[:hour] ? 0 : min), - options[:sec] || ((options[:hour] || options[:min]) ? 0 : sec), - options[:usec] || ((options[:hour] || options[:min] || options[:sec]) ? 0 : Rational(nsec, 1000)) + options.fetch(:year, year), + options.fetch(:month, month), + options.fetch(:day, day), + options.fetch(:hour, hour), + options.fetch(:min, options[:hour] ? 0 : min), + options.fetch(:sec, (options[:hour] || options[:min]) ? 0 : sec), + options.fetch(:usec, (options[:hour] || options[:min] || options[:sec]) ? 0 : Rational(nsec, 1000)) ) end @@ -89,18 +104,26 @@ class Time def advance(options) unless options[:weeks].nil? options[:weeks], partial_weeks = options[:weeks].divmod(1) - options[:days] = (options[:days] || 0) + 7 * partial_weeks + options[:days] = options.fetch(:days, 0) + 7 * partial_weeks end unless options[:days].nil? options[:days], partial_days = options[:days].divmod(1) - options[:hours] = (options[:hours] || 0) + 24 * partial_days + options[:hours] = options.fetch(:hours, 0) + 24 * partial_days end d = to_date.advance(options) time_advanced_by_date = change(:year => d.year, :month => d.month, :day => d.day) - seconds_to_advance = (options[:seconds] || 0) + (options[:minutes] || 0) * 60 + (options[:hours] || 0) * 3600 - seconds_to_advance == 0 ? time_advanced_by_date : time_advanced_by_date.since(seconds_to_advance) + seconds_to_advance = \ + options.fetch(:seconds, 0) + + options.fetch(:minutes, 0) * 60 + + options.fetch(:hours, 0) * 3600 + + if seconds_to_advance.zero? + time_advanced_by_date + else + time_advanced_by_date.since(seconds_to_advance) + end end # Returns a new Time representing the time a number of seconds ago, this is basically a wrapper around the Numeric extension @@ -145,6 +168,7 @@ class Time def prev_year years_ago(1) end + alias_method :last_year, :prev_year # Short-hand for years_since(1) def next_year @@ -155,6 +179,7 @@ class Time def prev_month months_ago(1) end + alias_method :last_month, :prev_month # Short-hand for months_since(1) def next_month @@ -166,6 +191,7 @@ class Time start_day_number = DAYS_INTO_WEEK[start_day] current_day_number = wday != 0 ? wday - 1 : 6 days_span = current_day_number - start_day_number + days_span >= 0 ? days_span : 7 + days_span end @@ -197,12 +223,19 @@ class Time # Returns a new Time representing the start of the given day in the previous week (default is :monday). def prev_week(day = :monday) - ago(1.week).beginning_of_week.since(DAYS_INTO_WEEK[day].day).change(:hour => 0) + ago(1.week). + beginning_of_week. + since(DAYS_INTO_WEEK[day].day). + change(:hour => 0) end + alias_method :last_week, :prev_week # Returns a new Time representing the start of the given day in next week (default is :monday). def next_week(day = :monday) - since(1.week).beginning_of_week.since(DAYS_INTO_WEEK[day].day).change(:hour => 0) + since(1.week). + beginning_of_week. + since(DAYS_INTO_WEEK[day].day). + change(:hour => 0) end # Returns a new Time representing the start of the day (0:00) @@ -216,7 +249,12 @@ class Time # Returns a new Time representing the end of the day, 23:59:59.999999 (.999999999 in ruby1.9) def end_of_day - change(:hour => 23, :min => 59, :sec => 59, :usec => 999999.999) + change( + :hour => 23, + :min => 59, + :sec => 59, + :usec => 999999.999 + ) end # Returns a new Time representing the start of the month (1st of the month, 0:00) @@ -230,19 +268,27 @@ class Time def end_of_month #self - ((self.mday-1).days + self.seconds_since_midnight) last_day = ::Time.days_in_month(month, year) - change(:day => last_day, :hour => 23, :min => 59, :sec => 59, :usec => 999999.999) + change( + :day => last_day, + :hour => 23, + :min => 59, + :sec => 59, + :usec => 999999.999 + ) end alias :at_end_of_month :end_of_month # Returns a new Time representing the start of the quarter (1st of january, april, july, october, 0:00) def beginning_of_quarter - beginning_of_month.change(:month => [10, 7, 4, 1].detect { |m| m <= month }) + first_quarter_month = [10, 7, 4, 1].detect { |m| m <= month } + beginning_of_month.change(:month => first_quarter_month) end alias :at_beginning_of_quarter :beginning_of_quarter # Returns a new Time representing the end of the quarter (end of the last day of march, june, september, december) def end_of_quarter - beginning_of_month.change(:month => [3, 6, 9, 12].detect { |m| m >= month }).end_of_month + last_quarter_month = [3, 6, 9, 12].detect { |m| m >= month } + beginning_of_month.change(:month => last_quarter_month).end_of_month end alias :at_end_of_quarter :end_of_quarter @@ -254,7 +300,14 @@ class Time # Returns a new Time representing the end of the year (end of the 31st of december) def end_of_year - change(:month => 12, :day => 31, :hour => 23, :min => 59, :sec => 59, :usec => 999999.999) + change( + :month => 12, + :day => 31, + :hour => 23, + :min => 59, + :sec => 59, + :usec => 999999.999 + ) end alias :at_end_of_year :end_of_year @@ -273,9 +326,9 @@ class Time beginning_of_day..end_of_day end - # Returns a Range representing the whole week of the current time. - def all_week - beginning_of_week..end_of_week + # Returns a Range representing the whole week of the current time. Week starts on start_day (default is :monday, i.e. end of Sunday). + def all_week(start_day = :monday) + beginning_of_week(start_day)..end_of_week(start_day) end # Returns a Range representing the whole month of the current time. @@ -327,7 +380,11 @@ class Time # can be chronologically compared with a Time def compare_with_coercion(other) # we're avoiding Time#to_datetime cause it's expensive - other.is_a?(Time) ? compare_without_coercion(other.to_time) : to_datetime <=> other + if other.is_a?(Time) + compare_without_coercion(other.to_time) + else + to_datetime <=> other + end end alias_method :compare_without_coercion, :<=> alias_method :<=>, :compare_with_coercion @@ -341,4 +398,5 @@ class Time end alias_method :eql_without_coercion, :eql? alias_method :eql?, :eql_with_coercion + end |