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Adds a custom i18n backend that lazily loads translations files....
Jean-Philippe Lang -
r10616:3739810afa35
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@@ -1,6 +1,5
1 I18n.default_locale = 'en'
1 I18n.default_locale = 'en'
2 # Adds fallback to default locale for untranslated strings
2 I18n.backend = Redmine::I18n::Backend.new
3 I18n::Backend::Simple.send(:include, I18n::Backend::Fallbacks)
4
3
5 require 'redmine'
4 require 'redmine'
6
5
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@@ -67,7 +67,7 module Redmine
67 end
67 end
68
68
69 def valid_languages
69 def valid_languages
70 @@valid_languages ||= Dir.glob(File.join(Rails.root, 'config', 'locales', '*.yml')).collect {|f| File.basename(f).split('.').first}.collect(&:to_sym)
70 ::I18n.available_locales
71 end
71 end
72
72
73 def find_language(lang)
73 def find_language(lang)
@@ -84,5 +84,74 module Redmine
84 def current_language
84 def current_language
85 ::I18n.locale
85 ::I18n.locale
86 end
86 end
87
88 # Custom backend based on I18n::Backend::Simple with the following changes:
89 # * lazy loading of translation files
90 # * available_locales are determined by looking at translation file names
91 class Backend
92 (class << self; self; end).class_eval { public :include }
93
94 module Implementation
95 include ::I18n::Backend::Base
96
97 # Stores translations for the given locale in memory.
98 # This uses a deep merge for the translations hash, so existing
99 # translations will be overwritten by new ones only at the deepest
100 # level of the hash.
101 def store_translations(locale, data, options = {})
102 locale = locale.to_sym
103 translations[locale] ||= {}
104 data = data.deep_symbolize_keys
105 translations[locale].deep_merge!(data)
106 end
107
108 # Get available locales from the translations filenames
109 def available_locales
110 @available_locales ||= ::I18n.load_path.map {|path| File.basename(path, '.*').to_sym}.uniq.sort
111 end
112
113 # Clean up translations
114 def reload!
115 @translations = nil
116 @available_locales = nil
117 super
118 end
119
120 protected
121
122 def init_translations(locale)
123 locale = locale.to_s
124 paths = ::I18n.load_path.select {|path| File.basename(path, '.*') == locale}
125 load_translations(paths)
126 translations[locale] ||= {}
127 end
128
129 def translations
130 @translations ||= {}
131 end
132
133 # Looks up a translation from the translations hash. Returns nil if
134 # eiher key is nil, or locale, scope or key do not exist as a key in the
135 # nested translations hash. Splits keys or scopes containing dots
136 # into multiple keys, i.e. <tt>currency.format</tt> is regarded the same as
137 # <tt>%w(currency format)</tt>.
138 def lookup(locale, key, scope = [], options = {})
139 init_translations(locale) unless translations.key?(locale)
140 keys = ::I18n.normalize_keys(locale, key, scope, options[:separator])
141
142 keys.inject(translations) do |result, _key|
143 _key = _key.to_sym
144 return nil unless result.is_a?(Hash) && result.has_key?(_key)
145 result = result[_key]
146 result = resolve(locale, _key, result, options.merge(:scope => nil)) if result.is_a?(Symbol)
147 result
148 end
149 end
150 end
151
152 include Implementation
153 # Adds fallback to default locale for untranslated strings
154 include ::I18n::Backend::Fallbacks
155 end
87 end
156 end
88 end
157 end
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