diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/time')
-rw-r--r-- | activesupport/lib/active_support/core_ext/time/calculations.rb | 54 | ||||
-rw-r--r-- | activesupport/lib/active_support/core_ext/time/conversions.rb | 22 |
2 files changed, 64 insertions, 12 deletions
diff --git a/activesupport/lib/active_support/core_ext/time/calculations.rb b/activesupport/lib/active_support/core_ext/time/calculations.rb index c5fbbcf890..f3235d11bb 100644 --- a/activesupport/lib/active_support/core_ext/time/calculations.rb +++ b/activesupport/lib/active_support/core_ext/time/calculations.rb @@ -1,5 +1,6 @@ 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] @@ -8,7 +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. @@ -160,27 +161,46 @@ class Time 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 - # 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 @@ -311,4 +331,14 @@ 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 diff --git a/activesupport/lib/active_support/core_ext/time/conversions.rb b/activesupport/lib/active_support/core_ext/time/conversions.rb index d9d5e02778..49ac18d245 100644 --- a/activesupport/lib/active_support/core_ext/time/conversions.rb +++ b/activesupport/lib/active_support/core_ext/time/conversions.rb @@ -55,9 +55,31 @@ class Time utc? && alternate_utc_string || ActiveSupport::TimeZone.seconds_to_utc_offset(utc_offset, colon) end + # Converts a Time object to a Date, dropping hour, minute, and second precision. + # + # my_time = Time.now # => Mon Nov 12 22:59:51 -0500 2007 + # my_time.to_date # => Mon, 12 Nov 2007 + # + # your_time = Time.parse("1/13/2009 1:13:03 P.M.") # => Tue Jan 13 13:13:03 -0500 2009 + # your_time.to_date # => Tue, 13 Jan 2009 + def to_date + ::Date.new(year, month, day) + end unless method_defined?(:to_date) + # A method to keep Time, Date and DateTime instances interchangeable on conversions. # In this case, it simply returns +self+. def to_time self end unless method_defined?(:to_time) + + # Converts a Time instance to a Ruby DateTime instance, preserving UTC offset. + # + # my_time = Time.now # => Mon Nov 12 23:04:21 -0500 2007 + # my_time.to_datetime # => Mon, 12 Nov 2007 23:04:21 -0500 + # + # your_time = Time.parse("1/13/2009 1:13:03 P.M.") # => Tue Jan 13 13:13:03 -0500 2009 + # your_time.to_datetime # => Tue, 13 Jan 2009 13:13:03 -0500 + def to_datetime + ::DateTime.civil(year, month, day, hour, min, sec, Rational(utc_offset, 86400)) + end unless method_defined?(:to_datetime) end |