engine/lib/locomotive/i18n.rb
2011-08-18 11:02:55 +02:00

162 lines
4.5 KiB
Ruby

# require 'ruby-debug'
## patches for the i18n support (aka multi languages support)
require 'i18n'
module I18n
class Config
def site_locale
@site_locale ||= default_site_locale
end
def site_locale=(site_locale)
@site_locale = site_locale.to_sym rescue nil
end
def default_site_locale
@@default_site_locale ||= :en
end
def default_site_locale=(site_locale)
@@default_site_locale = site_locale.to_sym rescue nil
end
end
class << self
# Write methods which delegates to the configuration object
%w(site_locale default_site_locale).each do |method|
module_eval <<-DELEGATORS, __FILE__, __LINE__ + 1
def #{method}
config.#{method}
end
def #{method}=(value)
config.#{method} = (value)
end
DELEGATORS
end
# Executes block with given I18n.site_locale set.
def with_site_locale(tmp_locale = nil)
if tmp_locale
current_locale = self.site_locale
self.site_locale = tmp_locale
end
yield
ensure
self.site_locale = current_locale if tmp_locale
end
end
end
## CARRIERWAVE ##
require 'carrierwave/orm/mongoid'
module CarrierWave
module Mongoid
def mount_uploader_with_localization(column, uploader=nil, options={}, &block)
mount_uploader_without_localization(column, uploader, options, &block)
define_method(:read_uploader) { |name| self.send(name.to_sym) }
define_method(:write_uploader) { |name, value| self.send(:"#{name.to_sym}=", value) }
end
alias_method_chain :mount_uploader, :localization
end
end
## MONGOID-I18n ##
# TODO: fork https://github.com/Papipo/mongoid_i18n
module Mongoid
module Criterion
class Selector< Hash
def []=(key, value)
key = "#{key}.#{::I18n.site_locale}" if fields[key.to_s].try(:type) == Mongoid::I18n::LocalizedField
super
end
end
end
module I18n
included do
cattr_accessor :localized_fields_list
end
module ClassMethods
def localized_fields(*args)
self.localized_fields_list = [*args].collect
end
def field(name, options = {})
if localized_field?(name)
options.merge!(:type => LocalizedField, :default => LocalizedField.new)
end
super
end
protected
def localized_field?(name)
(self.localized_fields_list || []).any? do |rule|
case rule
when String, Symbol then name.to_s == rule.to_s
when Regexp then !(name.to_s =~ rule).nil?
else
false
end
end.tap do |result|
# options[:type] = LocalizedField if result
# puts "#{name.inspect}... localized ? #{result.inspect}"
end
end
def create_accessors(name, meth, options = {})
if options[:type] == LocalizedField
if options[:use_default_if_empty] != false # neither nil nor true
define_method(meth) do
value = read_attribute(name)
if value.is_a?(Hash)
value[::I18n.site_locale.to_s] || value[::I18n.default_site_locale.to_s] rescue ''
else
value
end
end
else
define_method(meth) do
value = read_attribute(name)
if value.is_a?(Hash)
read_attribute(name)[::I18n.site_locale.to_s] rescue ''
else
value
end
end
end
define_method("#{meth}=") do |value|
if !@attributes[name].nil? && !@attributes[name].is_a?(Hash)
@attributes[name] = { ::I18n.default_site_locale.to_s => @attributes[name] }
end
value = if value.is_a?(Hash)
(@attributes[name] || {}).merge(value)
else
(@attributes[name] || {}).merge(::I18n.site_locale.to_s => value)
end
value = value.delete_if { |key, value| value.blank? } if options[:clear_empty_values] != false
write_attribute(name, value)
end
define_method("#{meth}_translations") { read_attribute(name) }
if options[:clear_empty_values] != false
define_method("#{meth}_translations=") { |value| write_attribute(name, value.delete_if { |key, value| value.blank? }) }
else
define_method("#{meth}_translations=") { |value| write_attribute(name, value) }
end
else
super
end
end
end
end
end