diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/string/conversions.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/string/conversions.rb | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/string/conversions.rb b/activesupport/lib/active_support/core_ext/string/conversions.rb new file mode 100644 index 0000000000..29a88b07ad --- /dev/null +++ b/activesupport/lib/active_support/core_ext/string/conversions.rb @@ -0,0 +1,59 @@ +# frozen_string_literal: true + +require "date" +require "active_support/core_ext/time/calculations" + +class String + # Converts a string to a Time value. + # The +form+ can be either :utc or :local (default :local). + # + # The time is parsed using Time.parse method. + # If +form+ is :local, then the time is in the system timezone. + # If the date part is missing then the current date is used and if + # the time part is missing then it is assumed to be 00:00:00. + # + # "13-12-2012".to_time # => 2012-12-13 00:00:00 +0100 + # "06:12".to_time # => 2012-12-13 06:12:00 +0100 + # "2012-12-13 06:12".to_time # => 2012-12-13 06:12:00 +0100 + # "2012-12-13T06:12".to_time # => 2012-12-13 06:12:00 +0100 + # "2012-12-13T06:12".to_time(:utc) # => 2012-12-13 06:12:00 UTC + # "12/13/2012".to_time # => ArgumentError: argument out of range + def to_time(form = :local) + parts = Date._parse(self, false) + used_keys = %i(year mon mday hour min sec sec_fraction offset) + return if (parts.keys & used_keys).empty? + + now = Time.now + time = Time.new( + parts.fetch(:year, now.year), + parts.fetch(:mon, now.month), + parts.fetch(:mday, now.day), + parts.fetch(:hour, 0), + parts.fetch(:min, 0), + parts.fetch(:sec, 0) + parts.fetch(:sec_fraction, 0), + parts.fetch(:offset, form == :utc ? 0 : nil) + ) + + form == :utc ? time.utc : time.to_time + end + + # Converts a string to a Date value. + # + # "1-1-2012".to_date # => Sun, 01 Jan 2012 + # "01/01/2012".to_date # => Sun, 01 Jan 2012 + # "2012-12-13".to_date # => Thu, 13 Dec 2012 + # "12/13/2012".to_date # => ArgumentError: invalid date + def to_date + ::Date.parse(self, false) unless blank? + end + + # Converts a string to a DateTime value. + # + # "1-1-2012".to_datetime # => Sun, 01 Jan 2012 00:00:00 +0000 + # "01/01/2012 23:59:59".to_datetime # => Sun, 01 Jan 2012 23:59:59 +0000 + # "2012-12-13 12:50".to_datetime # => Thu, 13 Dec 2012 12:50:00 +0000 + # "12/13/2012".to_datetime # => ArgumentError: invalid date + def to_datetime + ::DateTime.parse(self, false) unless blank? + end +end |