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 | 66 |
1 files changed, 49 insertions, 17 deletions
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb index a15a06d0e4..5076697c04 100644 --- a/activesupport/lib/active_support/core_ext/time/calculations.rb +++ b/activesupport/lib/active_support/core_ext/time/calculations.rb @@ -9,7 +9,7 @@ class Time class << self # Overriding case equality method so that it returns true for ActiveSupport::TimeWithZone instances def ===(other) - other.is_a?(::Time) + super || (self == Time && other.is_a?(ActiveSupport::TimeWithZone)) end # Return the number of days in the given month. @@ -67,7 +67,7 @@ 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( @@ -78,7 +78,7 @@ class Time 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 : usec) + options[:usec] || ((options[:hour] || options[:min] || options[:sec]) ? 0 : Rational(nsec, 1000)) ) end @@ -145,6 +145,7 @@ class Time def prev_year years_ago(1) end + alias_method :last_year, :prev_year # Short-hand for years_since(1) def next_year @@ -155,33 +156,54 @@ class Time def prev_month months_ago(1) end + alias_method :last_month, :prev_month # Short-hand for months_since(1) def next_month months_since(1) end - # Returns a new Time representing the "start" of this week (Monday, 0:00) - def beginning_of_week - days_to_monday = wday!=0 ? wday-1 : 6 - (self - days_to_monday.days).midnight + # Returns number of days to start of this week, week starts on start_day (default is :monday). + def days_to_week_start(start_day = :monday) + 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 + + # Returns a new Time representing the "start" of this week, week starts on start_day (default is :monday, i.e. Monday, 0:00). + def beginning_of_week(start_day = :monday) + days_to_start = days_to_week_start(start_day) + (self - days_to_start.days).midnight end - alias :monday :beginning_of_week alias :at_beginning_of_week :beginning_of_week - # Returns a new Time representing the end of this week, (end of Sunday) - def end_of_week - days_to_sunday = wday!=0 ? 7-wday : 0 - (self + days_to_sunday.days).end_of_day + # Returns a new +Date+/+DateTime+ representing the start of this week. Week is + # assumed to start on a Monday. +DateTime+ objects have their time set to 0:00. + def monday + beginning_of_week + end + + # Returns a new Time representing the end of this week, week starts on start_day (default is :monday, i.e. end of Sunday). + def end_of_week(start_day = :monday) + days_to_end = 6 - days_to_week_start(start_day) + (self + days_to_end.days).end_of_day end alias :at_end_of_week :end_of_week - # Returns a new Time representing the start of the given day in the previous week (default is Monday). + # Returns a new +Date+/+DateTime+ representing the end of this week. Week is + # assumed to start on a Monday. +DateTime+ objects have their time set to 23:59:59. + def sunday + end_of_week + end + + # 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) end + alias_method :last_week, :prev_week - # Returns a new Time representing the start of the given day in next week (default is Monday). + # 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) end @@ -254,9 +276,9 @@ 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. @@ -312,4 +334,14 @@ class Time end alias_method :compare_without_coercion, :<=> alias_method :<=>, :compare_with_coercion + + # Layers additional behavior on Time#eql? so that ActiveSupport::TimeWithZone instances + # can be eql? to an equivalent Time + def eql_with_coercion(other) + # if other is an ActiveSupport::TimeWithZone, coerce a Time instance from it so we can do eql? comparison + other = other.comparable_time if other.respond_to?(:comparable_time) + eql_without_coercion(other) + end + alias_method :eql_without_coercion, :eql? + alias_method :eql?, :eql_with_coercion end |