Class: Barometer::Utils::ZoneCodeLookup

Inherits:
Object
  • Object
show all
Defined in:
lib/barometer/utils/zone_code_lookup.rb

Constant Summary collapse

@@zone_codes_file = 
File.expand_path(
File.join(File.dirname(__FILE__), 'translations', 'zone_codes.yml'))
@@zone_codes = 
nil

Class Method Summary collapse

Class Method Details

._load_zone_codes ⇒ Object 



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# File 'lib/barometer/utils/zone_code_lookup.rb', line 8

def self._load_zone_codes
  $:.unshift(File.dirname(__FILE__))
  @@zone_codes ||= YAML.load_file(@@zone_codes_file)
end

.exists?(code) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/barometer/utils/zone_code_lookup.rb', line 13

def self.exists?(code)
  _load_zone_codes unless @@zone_codes
  (::Time.zone_offset(code.to_s) || @@zone_codes && @@zone_codes.has_key?(code))
end

.offset(code) ⇒ Object

Known conflicts: IRT (ireland and india) CST (central standard time, china standard time)



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# File 'lib/barometer/utils/zone_code_lookup.rb', line 22

def self.offset(code)
  # http://www.timeanddate.com/library/abbreviations/timezones/
  # http://www.worldtimezone.com/wtz-names/timezonenames.html
  _load_zone_codes unless @@zone_codes
  ::Time.zone_offset(code) || ((@@zone_codes[code.to_s.upcase] || 0) * 60 * 60)
end