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# Redmine - project management software
# Copyright (C) 2006-2017 Jean-Philippe Lang
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
module Redmine
module I18n
def self.included(base)
base.extend Redmine::I18n
end
def l(*args)
case args.size
when 1
::I18n.t(*args)
when 2
if args.last.is_a?(Hash)
::I18n.t(*args)
elsif args.last.is_a?(String)
::I18n.t(args.first, :value => args.last)
else
::I18n.t(args.first, :count => args.last)
end
else
raise "Translation string with multiple values: #{args.first}"
end
end
def l_or_humanize(s, options={})
k = "#{options[:prefix]}#{s}".to_sym
::I18n.t(k, :default => s.to_s.humanize)
end
def l_hours(hours)
hours = hours.to_f
l((hours < 2.0 ? :label_f_hour : :label_f_hour_plural), :value => format_hours(hours))
end
def l_hours_short(hours)
l(:label_f_hour_short, :value => format_hours(hours.to_f))
end
def ll(lang, str, arg=nil)
options = arg.is_a?(Hash) ? arg : {:value => arg}
locale = lang.to_s.gsub(%r{(.+)\-(.+)$}) { "#{$1}-#{$2.upcase}" }
::I18n.t(str.to_s, options.merge(:locale => locale))
end
# Localizes the given args with user's language
def lu(user, *args)
lang = user.try(:language).presence || Setting.default_language
ll(lang, *args)
end
def format_date(date)
return nil unless date
options = {}
options[:format] = Setting.date_format unless Setting.date_format.blank?
::I18n.l(date.to_date, options)
end
def format_time(time, include_date=true, user=nil)
return nil unless time
user ||= User.current
options = {}
options[:format] = (Setting.time_format.blank? ? :time : Setting.time_format)
time = time.to_time if time.is_a?(String)
zone = user.time_zone
local = zone ? time.in_time_zone(zone) : (time.utc? ? time.localtime : time)
(include_date ? "#{format_date(local)} " : "") + ::I18n.l(local, options)
end
def format_hours(hours)
return "" if hours.blank?
if Setting.timespan_format == 'minutes'
h = hours.floor
m = ((hours - h) * 60).round
"%d:%02d" % [ h, m ]
else
"%.2f" % hours.to_f
end
end
def day_name(day)
::I18n.t('date.day_names')[day % 7]
end
def day_letter(day)
::I18n.t('date.abbr_day_names')[day % 7].first
end
def month_name(month)
::I18n.t('date.month_names')[month]
end
def valid_languages
::I18n.available_locales
end
# Returns an array of languages names and code sorted by names, example:
# [["Deutsch", "de"], ["English", "en"] ...]
#
# The result is cached to prevent from loading all translations files
# unless :cache => false option is given
def languages_options(options={})
options = if options[:cache] == false
valid_languages.
select {|locale| ::I18n.exists?(:general_lang_name, locale)}.
map {|lang| [ll(lang.to_s, :general_lang_name), lang.to_s]}.
sort_by(&:first)
else
ActionController::Base.cache_store.fetch "i18n/languages_options/#{Redmine::VERSION}" do
languages_options :cache => false
end
end
options.map {|name, lang| [name.force_encoding("UTF-8"), lang.force_encoding("UTF-8")]}
end
def find_language(lang)
@@languages_lookup ||= valid_languages.inject({}) {|k, v| k[v.to_s.downcase] = v; k }
@@languages_lookup[lang.to_s.downcase]
end
def set_language_if_valid(lang)
if l = find_language(lang)
::I18n.locale = l
end
end
def current_language
::I18n.locale
end
# Custom backend based on I18n::Backend::Simple with the following changes:
# * lazy loading of translation files
# * available_locales are determined by looking at translation file names
class Backend
(class << self; self; end).class_eval { public :include }
module Implementation
include ::I18n::Backend::Base
include ::I18n::Backend::Pluralization
# Stores translations for the given locale in memory.
# This uses a deep merge for the translations hash, so existing
# translations will be overwritten by new ones only at the deepest
# level of the hash.
def store_translations(locale, data, options = {})
locale = locale.to_sym
translations[locale] ||= {}
data = data.deep_symbolize_keys
translations[locale].deep_merge!(data)
end
# Get available locales from the translations filenames
def available_locales
@available_locales ||= ::I18n.load_path.map {|path| File.basename(path, '.*')}.uniq.sort.map(&:to_sym)
end
# Clean up translations
def reload!
@translations = nil
@available_locales = nil
super
end
protected
def init_translations(locale)
locale = locale.to_s
paths = ::I18n.load_path.select {|path| File.basename(path, '.*') == locale}
load_translations(paths)
translations[locale] ||= {}
end
def translations
@translations ||= {}
end
# Looks up a translation from the translations hash. Returns nil if
# eiher key is nil, or locale, scope or key do not exist as a key in the
# nested translations hash. Splits keys or scopes containing dots
# into multiple keys, i.e. <tt>currency.format</tt> is regarded the same as
# <tt>%w(currency format)</tt>.
def lookup(locale, key, scope = [], options = {})
init_translations(locale) unless translations.key?(locale)
keys = ::I18n.normalize_keys(locale, key, scope, options[:separator])
keys.inject(translations) do |result, _key|
_key = _key.to_sym
return nil unless result.is_a?(Hash) && result.has_key?(_key)
result = result[_key]
result = resolve(locale, _key, result, options.merge(:scope => nil)) if result.is_a?(Symbol)
result
end
end
end
include Implementation
# Adds fallback to default locale for untranslated strings
include ::I18n::Backend::Fallbacks
end
end
end
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