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# 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
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