mirror of https://github.com/rails/rails
Merge pull request #39989 from jonathanhefner/translate-refactor
Improve Action View `translate` helper
This commit is contained in:
Eugene Kenny
GitHub
commit
0b244ff44c
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@ -1,8 +1,7 @@
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# frozen_string_literal: true
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require "action_view/helpers/tag_helper"
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require "active_support/core_ext/string/access"
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require "i18n/exceptions"
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require "active_support/core_ext/symbol/starts_ends_with"
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module ActionView
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# = Action View Translation Helpers
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@ -69,78 +68,43 @@ module ActionView
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# resolved against.
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#
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def translate(key, **options)
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unless options[:default].nil?
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remaining_defaults = Array.wrap(options.delete(:default)).compact
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options[:default] = remaining_defaults unless remaining_defaults.first.kind_of?(Symbol)
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return key.map { |k| translate(k, **options) } if key.is_a?(Array)
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alternatives = if options.key?(:default)
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options[:default].is_a?(Array) ? options.delete(:default).compact : [options.delete(:default)]
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end
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# If the user has explicitly decided to NOT raise errors, pass that option to I18n.
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# Otherwise, tell I18n to raise an exception, which we rescue further in this method.
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# Note: `raise_error` refers to us re-raising the error in this method. I18n is forced to raise by default.
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if options[:raise] == false
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raise_error = false
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i18n_raise = false
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else
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raise_error = options[:raise] || ActionView::Base.raise_on_missing_translations
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i18n_raise = true
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end
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options[:raise] = true if options[:raise].nil? && ActionView::Base.raise_on_missing_translations
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default = MISSING_TRANSLATION
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fully_resolved_key = scope_key_by_partial(key)
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if html_safe_translation_key?(key)
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html_safe_options = options.dup
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options.except(*I18n::RESERVED_KEYS).each do |name, value|
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unless name == :count && value.is_a?(Numeric)
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html_safe_options[name] = ERB::Util.html_escape(value.to_s)
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end
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translation = while key
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if alternatives.blank? && !options[:raise].nil?
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default = NO_DEFAULT # let I18n handle missing translation
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end
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html_safe_options[:default] = MISSING_TRANSLATION unless html_safe_options[:default].blank?
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key = scope_key_by_partial(key)
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first_key ||= key
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translation = I18n.translate(fully_resolved_key, **html_safe_options.merge(raise: i18n_raise))
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if translation.equal?(MISSING_TRANSLATION)
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translated_text = options[:default].first
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elsif translation.respond_to?(:map)
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translated_text = translation.map { |element| element.respond_to?(:html_safe) ? element.html_safe : element }
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if html_safe_translation_key?(key)
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html_safe_options ||= html_escape_translation_options(options)
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translated = I18n.translate(key, **html_safe_options, default: default)
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break html_safe_translation(translated) unless translated.equal?(MISSING_TRANSLATION)
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else
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translated_text = translation.respond_to?(:html_safe) ? translation.html_safe : translation
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end
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else
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translated_text = I18n.translate(fully_resolved_key, **options.merge(raise: i18n_raise))
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end
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if block_given?
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yield(translated_text, fully_resolved_key)
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else
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translated_text
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end
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rescue I18n::MissingTranslationData => e
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if remaining_defaults.present?
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translate remaining_defaults.shift, **options.merge(default: remaining_defaults)
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else
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raise e if raise_error
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keys = I18n.normalize_keys(e.locale, e.key, e.options[:scope])
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title = +"translation missing: #{keys.join('.')}"
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interpolations = options.except(:default, :scope)
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if interpolations.any?
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title << ", " << interpolations.map { |k, v| "#{k}: #{ERB::Util.html_escape(v)}" }.join(", ")
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translated = I18n.translate(key, **options, default: default)
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break translated unless translated.equal?(MISSING_TRANSLATION)
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end
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return title unless ActionView::Base.debug_missing_translation
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break alternatives.first if alternatives.present? && !alternatives.first.is_a?(Symbol)
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translated_fallback = content_tag("span", keys.last.to_s.titleize, class: "translation_missing", title: title)
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if block_given?
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yield(translated_fallback, scope_key_by_partial(key))
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else
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translated_fallback
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end
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key = alternatives&.shift
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end
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if key.nil?
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translation = missing_translation(first_key, options)
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key = first_key
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end
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block_given? ? yield(translation, key) : translation
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end
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alias :t :translate
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@ -157,13 +121,19 @@ module ActionView
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MISSING_TRANSLATION = Object.new
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private_constant :MISSING_TRANSLATION
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NO_DEFAULT = [].freeze
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private_constant :NO_DEFAULT
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def self.i18n_option?(name)
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(@i18n_option_names ||= I18n::RESERVED_KEYS.to_set).include?(name)
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end
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def scope_key_by_partial(key)
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stringified_key = key.to_s
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if stringified_key.start_with?(".")
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if key.start_with?(".")
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if @current_template&.virtual_path
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@_scope_key_by_partial_cache ||= {}
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@_scope_key_by_partial_cache[@current_template.virtual_path] ||= @current_template.virtual_path.gsub(%r{/_?}, ".")
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"#{@_scope_key_by_partial_cache[@current_template.virtual_path]}#{stringified_key}"
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"#{@_scope_key_by_partial_cache[@current_template.virtual_path]}#{key}"
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else
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raise "Cannot use t(#{key.inspect}) shortcut because path is not available"
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end
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@ -172,8 +142,47 @@ module ActionView
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end
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end
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def html_escape_translation_options(options)
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return options if options.empty?
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html_safe_options = options.dup
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options.each do |name, value|
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unless TranslationHelper.i18n_option?(name) || (name == :count && value.is_a?(Numeric))
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html_safe_options[name] = ERB::Util.html_escape(value.to_s)
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end
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end
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html_safe_options
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end
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def html_safe_translation_key?(key)
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/(?:_|\b)html\z/.match?(key.to_s)
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/(?:_|\b)html\z/.match?(key)
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end
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def html_safe_translation(translation)
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if translation.respond_to?(:map)
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translation.map { |element| element.respond_to?(:html_safe) ? element.html_safe : element }
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else
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translation.respond_to?(:html_safe) ? translation.html_safe : translation
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end
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end
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def missing_translation(key, options)
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keys = I18n.normalize_keys(options[:locale] || I18n.locale, key, options[:scope])
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title = +"translation missing: #{keys.join(".")}"
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options.each do |name, value|
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unless name == :scope
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title << ", " << name.to_s << ": " << ERB::Util.html_escape(value)
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end
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end
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if ActionView::Base.debug_missing_translation
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content_tag("span", keys.last.to_s.titleize, class: "translation_missing", title: title)
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else
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title
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end
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end
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end
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end
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@ -49,9 +49,18 @@ class TranslationHelperTest < ActiveSupport::TestCase
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end
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def test_delegates_setting_to_i18n
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assert_called_with(I18n, :translate, [:foo, locale: "en", raise: true], returns: "") do
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matcher_called = false
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matcher = ->(key, options) do
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matcher_called = true
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assert_equal :foo, key
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assert_equal "en", options[:locale]
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end
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I18n.stub(:translate, matcher) do
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translate :foo, locale: "en"
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end
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assert matcher_called
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end
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def test_delegates_localize_to_i18n
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@ -102,6 +111,15 @@ class TranslationHelperTest < ActiveSupport::TestCase
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ActionView::Base.raise_on_missing_translations = false
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end
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def test_raise_arg_overrides_raise_config_option
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ActionView::Base.raise_on_missing_translations = true
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expected = "translation missing: en.translations.missing"
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assert_equal expected, translate(:"translations.missing", raise: false)
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ensure
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ActionView::Base.raise_on_missing_translations = false
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end
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def test_raises_missing_translation_message_with_raise_option
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assert_raise(I18n::MissingTranslationData) do
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translate(:"translations.missing", raise: true)
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@ -164,6 +182,16 @@ class TranslationHelperTest < ActiveSupport::TestCase
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assert_equal expected, view.render(template: "translations/templates/missing_yield_block").strip
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end
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def test_missing_translation_scoped_by_partial_yield_block_without_debug_wrapper
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old_debug_missing_translation = ActionView::Base.debug_missing_translation
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ActionView::Base.debug_missing_translation = false
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expected = "translations.templates.missing_yield_block.missing: translation missing: en.translations.templates.missing_yield_block.missing"
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assert_equal expected, view.render(template: "translations/templates/missing_yield_block").strip
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ensure
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ActionView::Base.debug_missing_translation = old_debug_missing_translation
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end
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def test_missing_translation_with_default_scoped_by_partial_yield_block
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expected = "translations.templates.missing_with_default_yield_block.missing: Default"
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assert_equal expected, view.render(template: "translations/templates/missing_with_default_yield_block").strip
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@ -210,15 +238,26 @@ class TranslationHelperTest < ActiveSupport::TestCase
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end
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end
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def test_translate_with_default_and_raise_false
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translation = translate(:"translations.missing", default: :"translations.foo", raise: false)
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assert_equal "Foo", translation
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end
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def test_translate_with_default_named_html
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translation = translate(:'translations.missing', default: :'translations.hello_html')
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assert_equal "<a>Hello World</a>", translation
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assert_equal true, translation.html_safe?
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end
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def test_translate_with_default_named_html_and_raise_false
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translation = translate(:"translations.missing", default: :"translations.hello_html", raise: false)
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assert_equal "<a>Hello World</a>", translation
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assert_predicate translation, :html_safe?
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end
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def test_translate_with_missing_default
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translation = translate(:'translations.missing', default: :'translations.missing_html')
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expected = '<span class="translation_missing" title="translation missing: en.translations.missing_html">Missing Html</span>'
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translation = translate(:"translations.missing", default: :also_missing)
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expected = '<span class="translation_missing" title="translation missing: en.translations.missing">Missing</span>'
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assert_equal expected, translation
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assert_equal true, translation.html_safe?
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end
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@ -229,6 +268,12 @@ class TranslationHelperTest < ActiveSupport::TestCase
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end
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end
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def test_translate_with_html_key_and_missing_default_and_raise_option
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assert_raise(I18n::MissingTranslationData) do
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translate(:"translations.missing_html", default: :"translations.missing_html", raise: true)
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end
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end
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def test_translate_with_two_defaults_named_html
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translation = translate(:'translations.missing', default: [:'translations.missing_html', :'translations.hello_html'])
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assert_equal "<a>Hello World</a>", translation
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@ -289,6 +334,32 @@ class TranslationHelperTest < ActiveSupport::TestCase
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assert_nil translation
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end
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def test_translate_bulk_lookup
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translations = translate([:"translations.foo", :"translations.foo"])
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assert_equal ["Foo", "Foo"], translations
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end
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def test_translate_bulk_lookup_with_default
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translations = translate([:"translations.missing", :"translations.missing"], default: :"translations.foo")
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assert_equal ["Foo", "Foo"], translations
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end
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def test_translate_bulk_lookup_html
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translations = translate([:"translations.html", :"translations.hello_html"])
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assert_equal ["<a>Hello World</a>", "<a>Hello World</a>"], translations
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translations.each do |translation|
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assert_predicate translation, :html_safe?
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end
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end
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def test_translate_bulk_lookup_html_with_default
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translations = translate([:"translations.missing", :"translations.missing"], default: :"translations.html")
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assert_equal ["<a>Hello World</a>", "<a>Hello World</a>"], translations
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translations.each do |translation|
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assert_predicate translation, :html_safe?
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end
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end
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def test_translate_does_not_change_options
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options = {}
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if RUBY_VERSION >= "2.7"
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