68 lines
2.5 KiB
Ruby
68 lines
2.5 KiB
Ruby
require 'action_view/helpers/tag_helper'
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module ActionView
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module Helpers
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module TranslationHelper
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# Delegates to I18n#translate but also performs two additional functions. First, it'll catch MissingTranslationData exceptions
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# and turn them into inline spans that contains the missing key, such that you can see in a view what is missing where.
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#
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# Second, it'll scope the key by the current partial if the key starts with a period. So if you call translate(".foo") from the
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# people/index.html.erb template, you'll actually be calling I18n.translate("people.index.foo"). This makes it less repetitive
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# to translate many keys within the same partials and gives you a simple framework for scoping them consistently. If you don't
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# prepend the key with a period, nothing is converted.
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def translate(keys, options = {})
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if multiple_keys = keys.is_a?(Array)
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ActiveSupport::Deprecation.warn "Giving an array to translate is deprecated, please give a symbol or a string instead", caller
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end
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options[:raise] = true
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keys = scope_keys_by_partial(keys)
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translations = I18n.translate(keys, options)
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translations = [translations] if !multiple_keys && translations.size > 1
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translations = html_safe_translation_keys(keys, translations)
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if multiple_keys || translations.size > 1
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translations
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else
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translations.first
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end
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rescue I18n::MissingTranslationData => e
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keys = I18n.send(:normalize_translation_keys, e.locale, e.key, e.options[:scope])
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content_tag('span', keys.join(', '), :class => 'translation_missing')
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end
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alias :t :translate
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# Delegates to I18n.localize with no additional functionality.
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def localize(*args)
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I18n.localize(*args)
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end
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alias :l :localize
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private
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def scope_keys_by_partial(keys)
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Array.wrap(keys).map do |key|
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key = key.to_s
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if key.first == "."
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template.path_without_format_and_extension.gsub(%r{/_?}, ".") + key
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else
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key
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end
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end
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end
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def html_safe_translation_keys(keys, translations)
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keys.zip(translations).map do |key, translation|
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if key =~ /(\b|_|\.)html$/ && translation.respond_to?(:html_safe)
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translation.html_safe
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else
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translation
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end
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end
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end
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end
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end
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end
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