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Contents
module GettextI18nRails
#translates i18n calls to gettext calls
class Backend
@@translate_defaults = true
cattr_accessor :translate_defaults
attr_accessor :backend
def initialize(*args)
self.backend = I18n::Backend::Simple.new(*args)
end
def available_locales
FastGettext.available_locales || []
end
def translate(locale, key, options)
if gettext_key = gettext_key(key, options)
translation = FastGettext._(gettext_key)
interpolate(translation, options)
else
backend.translate locale, key, options
end
end
def method_missing(method, *args)
backend.send(method, *args)
end
protected
def gettext_key(key, options)
flat_key = flatten_key key, options
if FastGettext.key_exist?(flat_key)
flat_key
elsif self.class.translate_defaults
[*options[:default]].each do |default|
#try the scoped(more specific) key first e.g. 'activerecord.errors.my custom message'
flat_key = flatten_key default, options
return flat_key if FastGettext.key_exist?(flat_key)
#try the short key thereafter e.g. 'my custom message'
return default if FastGettext.key_exist?(default)
end
return nil
end
end
def interpolate(string, values)
reserved_keys = if defined?(I18n::RESERVED_KEYS) # rails 3+
I18n::RESERVED_KEYS
else
I18n::Backend::Base::RESERVED_KEYS
end
string % values.except(*reserved_keys)
end
def flatten_key key, options
scope = [*(options[:scope] || [])]
scope.empty? ? key.to_s : "#{scope*'.'}.#{key}"
end
end
end
Version data entries
22 entries across 22 versions & 2 rubygems