Class: Air18n::PhraseTranslation

Inherits:
ActiveRecord::Base
  • Object
show all
Defined in:
lib/air18n/phrase_translation.rb

Constant Summary collapse

SPACELESS_LANGUAGES = 
[:ja, :zh, :th]

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.activity_for_user_id(uid, opts) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 600

def self.activity_for_user_id uid, opts
  translator_activity_data uid, opts
end

.aggregate_v3_translation_activity(translation_pairs, opts = {}) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 355

def self.aggregate_v3_translation_activity(translation_pairs, opts={})
  per_user_locale_month_year =
    Hash.new {|h, year| h[year] =
      Hash.new {|h, month| h[month] =
        Hash.new{|h, user_id| h[user_id] =
          Hash.new{|h, locale| h[locale] =
            Hash.new {|h, day| h[day] = {
              :phrases_translated => 0,
              :phrases_verified => 0,
              :words_translated => 0,
              :words_verified => 0,
              :keys_translated => [],
              :keys_verified => [],
  } } } } } }

  translation_pairs.each do |pair|
    sums = per_user_locale_month_year[
      pair[:datetime].year][
      pair[:datetime].month][
      pair[:user_id]][
      pair[:locale]][
      pair[:datetime].day]
    sums[:words_translated] += pair[:words_translated]
    sums[:words_verified] += pair[:words_verified]
    if pair[:words_verified] > 0
      sums[:keys_verified] << pair[:phrase_key]
      sums[:phrases_verified] += 1
    else
      sums[:keys_translated] << pair[:phrase_key]
      sums[:phrases_translated] += 1
    end
  end

  ret = []

  per_user_locale_month_year.each do |year, months|
    months.each do |month, user_ids|
      user_ids.each do |user_id, locales|
        locales.each do |locale, days|
          if opts[:daily]
            days.each do |day, sums|
              ret << {
                :year => year,
                :month => month,
                :day => day,
                :locale => locale,
                :user_id => user_id,
                :activity => {
                  :num_translations => sums[:phrases_translated],
                  :num_verifications => sums[:phrases_verified],
                  :word_count_translations => sums[:words_translated],
                  :word_count_verifications => sums[:words_verified],
                  :translated_keys => sums[:keys_translated],
                  :verified_keys => sums[:keys_verified],
                }
              }
            end
          else
            monthly_sums = {
              :phrases_translated => 0,
              :phrases_verified => 0,
              :words_translated => 0,
              :words_verified => 0,
              :keys_translated => [],
              :keys_verified => [],
            }
            days.each do |day, sums|
              sums.keys.each do |key|
                monthly_sums[key] += sums[key]
              end
            end
            ret << {
              :year => year,
              :month => month,
              :locale => locale,
              :user_id => user_id,
              :activity => {
                :num_translations => monthly_sums[:phrases_translated],
                :num_verifications => monthly_sums[:phrases_verified],
                :word_count_translations => monthly_sums[:words_translated],
                :word_count_verifications => monthly_sums[:words_verified],
                :translated_keys => monthly_sums[:keys_translated],
                :verified_keys => monthly_sums[:keys_verified],
              }
            }
          end
        end
      end
    end
  end

  ret
end

.compute_v3_translation_activity(user_id, from_date, to_date) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 490

def self.compute_v3_translation_activity(user_id, from_date, to_date)
  ret = []
  Phrase.select(:id).find_in_batches do |batch|
    pt_scope = PhraseTranslation.where(:phrase_id => batch)
    if from_date
      pt_scope = pt_scope.where("created_at >= ?", from_date)
    end
    if to_date
      pt_scope = pt_scope.where("created_at < ?", to_date)
    end
    if user_id != 0
      pt_scope = pt_scope.where(:user_id => user_id)
    end
    phrase_to_phrase_translations = pt_scope.all.group_by { |pt| [pt.locale, pt.phrase_id] }
    phrase_to_phrase_translations.each do |(locale, phrase_id), phrase_translations|
      phrase_translations.sort_by! { |pt| pt.created_at }

      previous_translation = :uncomputed

      phrase_translations.each do |pt|
        translation_pair = {
          :translation => pt.value,
          :locale => pt.locale,
          :user_id => pt.user_id,
          :datetime => pt.created_at,
          :source_word_count => pt.source_word_count,
          :phrase_key => pt.key,
        }

        if pt.payment_details.present?
          payment_details = JSON.parse(pt.payment_details)
        else
          payment_details = {}
        end

        if !payment_details.include?('v3')
          # If we haven't computed v3 payment details already, compute them
          # and then save details to the PhraseTranslation itself.

          if previous_translation == :uncomputed
            previous_translation = PhraseTranslation.
              where("created_at < ?", phrase_translations.first.created_at - 1.second).
              where(:locale => locale).
              where(:phrase_id => phrase_id).
              order("created_at DESC").
              first
          end

          if previous_translation
            previous_translation_text = previous_translation.value
            previous_translation_user_id = previous_translation.user_id
            was_stale = previous_translation.source_hash != pt.source_hash
          else
            previous_translation_text = ''
            previous_translation_user_id = 0
            was_stale = false
          end

          words_translated, words_verified = self.word_counts_from_translation_pair(
            translation_pair.merge(
              :previous_translation => previous_translation_text,
              :was_stale => was_stale,
              :previous_user_id => previous_translation_user_id,
          ))

          payment_details['v3'] = {
            't' => words_translated,
            'v' => words_verified
          }

          pt.payment_details = payment_details.to_json
          pt.save
        end

        translation_pair[:words_translated] = payment_details['v3']['t']
        translation_pair[:words_verified] = payment_details['v3']['v']

        ret << translation_pair

        previous_translation = pt
      end
    end
  end
  ret
end

.construct_activity(phrase_ids_values_by_type) ⇒ Object

Helper method for translator_activity_data which counts words and payment of a set of translations and verifications, in (is verification bool) => (phrase id => English phrase value map).

Only used by old payment computing method.



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# File 'lib/air18n/phrase_translation.rb', line 609

def self.construct_activity(phrase_ids_values_by_type)
  {}.tap do |activity|
    activity[:num_translations], activity[:word_count_translations] = translation_word_count(phrase_ids_values_by_type[false])
    activity[:num_verifications], activity[:word_count_verifications] = translation_word_count(phrase_ids_values_by_type[true])
  end
end

.construct_activity_new(phrase_ids_word_counts_by_type) ⇒ Object

Helper method for translator_activity_data which counts words and payment of a set of translations and verifications, in ((is verification bool => (phrase id => source word count map)).



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# File 'lib/air18n/phrase_translation.rb', line 579

def self.construct_activity_new(phrase_ids_word_counts_by_type)
  {}.tap do |activity|
    activity[:num_translations] = phrase_ids_word_counts_by_type[false].size
    activity[:word_count_translations] = phrase_ids_word_counts_by_type[false].values.sum
    activity[:translated_keys] = phrase_ids_word_counts_by_type[false].keys

    activity[:num_verifications] = phrase_ids_word_counts_by_type[true].size
    activity[:word_count_verifications] = phrase_ids_word_counts_by_type[true].values.sum
    activity[:verified_keys] = phrase_ids_word_counts_by_type[true].keys
  end
end

.create_translation(phrase_id, phrase_key, target_locale, value, user_id, do_xss_check, allow_verification) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 61

def self.create_translation(phrase_id, phrase_key, target_locale, value, user_id, do_xss_check, allow_verification)
  pt = PhraseTranslation.new
  pt.user_id = user_id
  pt.phrase_id = phrase_id
  pt.key = phrase_key
  pt.locale = target_locale

  latest = pt.phrase.latest_translation(pt.locale)

  pt.value = normalize_translation_value(value)
  normalized_latest_value = latest.present? && normalize_translation_value(latest.value)

  value_same_as_latest = pt.value == normalized_latest_value

  if latest && value_same_as_latest && latest.is_stale && user_id == latest.user_id
    latest.is_stale = false
    if latest.save
      response_obj = {
        :status => 'success',
        :message => 'Translation marked as up-to-date.',
        :phrase_id => latest.phrase_id,
        :key => latest.key,
        :locale => latest.locale,
        :value => latest.value,
        :is_verification => latest.is_verification
      }
    else
      response_obj = { :status => 'error', :message => latest.errors.values.join('; ') }
    end
  else
    do_save = false
    message = ""

    safeness = XssDetector.safe?(pt.phrase.value, pt.value, I18n.default_locale, pt.locale)

    if pt.value.empty?
      message = "Translation empty; nothing saved."
    elsif do_xss_check && !safeness[:safe]
      message = safeness[:reason]
    elsif (latest && value_same_as_latest) && (latest.user_id != 0)
      if !allow_verification
        allowed, error = false, "Verification of non-stale phrases is currently disabled in '#{pt.locale}'"
      else
        allowed, error = pt.verification_allowed?(latest)
      end
      if allowed
        pt.is_verification = true
        do_save = true
        message = "Translation verified."
      else
        message = error
      end
    elsif latest && (latest.user_id != user_id || latest.is_verification)
      # If the translator is different than the last, or the last
      # translation was already a verification, this one is too.
      pt.is_verification = true

      do_save = true
      message = "Translation saved, marked as verified."
    else
      do_save = true
      message = "Translation saved."
    end

    if do_save
      if pt.save
        response_obj = {
          :status => 'success',
          :message => message,
          :phrase_id => pt.phrase_id,
          :key => pt.key,
          :locale => pt.locale,
          :value => pt.value,
          :is_verification => pt.is_verification
        }
      else
        response_obj = {:status => 'error', :message => pt.errors.values.join('; ')}
      end
    else
      response_obj = {:status => 'error', :message => message}
    end
  end

  response_obj
end

.detect_variables(search_in) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 708

def self.detect_variables(search_in)
  case search_in
  when String
    search_in.scan(/\{\{([\w .\-_]+)\}\}/).flatten +
      search_in.scan(/\%\{(\w+)\}/).flatten +
      search_in.scan(/\%(?:\d\$)?(?:[0\.]\d)?[dfsu@]/).flatten +
      search_in.scan(/__[A-Z_]+__/).flatten

  when Array
    search_in.inject(Set[]) { |carry, item| carry + detect_variables(item) }

  when Hash
    search_in.values.inject(Set[]) { |carry, item| carry + detect_variables(item) }
  else []
  end
end

.keep_key?(key, filter_opts = {}) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/air18n/phrase_translation.rb', line 643

def self.keep_key?(key, filter_opts={})
  if filter_opts[:exclude_ugc] && I18n.phrase_key_is_ugc?(key)
    return false
  end
  if filter_opts[:exclude_unused] && !I18n.still_used?(key)
    return false
  end
  if filter_opts[:exclude_all]
    return false
  end

  true
end

.list_of_latest_translations(locale) ⇒ Object

For every translated key in a locale, returns list of ids of PhraseTranslations that are the most recent translation of a key.



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# File 'lib/air18n/phrase_translation.rb', line 727

def self.list_of_latest_translations(locale)
  latest_translations = PhraseTranslation.select("max(id) as max_id").where("locale='#{locale}'").group(:phrase_id).collect{|e| e.max_id}
  latest_translations.empty? ? [0] : latest_translations
end

.reset_latest_and_stale_flags_from_timestamps(locales) ⇒ Object

For every PhraseTranslation in the specific list of locales, resets is_latest and is_stale columns based on phrases.updated_at and phrase_translations.created_at dates.



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# File 'lib/air18n/phrase_translation.rb', line 747

def self.reset_latest_and_stale_flags_from_timestamps(locales)
  phrase_id_to_updated_at = {}
  Phrase.find_each do |phrase|
    phrase_id_to_updated_at[phrase.id] = phrase.updated_at
  end

  locales.each do |locale|
    # Output progress to console in case of running this on console.
    latest_translations = PhraseTranslation.select("max(id) as max_id").where("locale='#{locale}'").group(:phrase_id).collect{|e| e.max_id}.to_set

    PhraseTranslation.where(:locale => locale).find_each do |translation|
      phrase_updated_at = phrase_id_to_updated_at[translation.phrase_id]
      if !phrase_updated_at
        # This happens for a few phrases, very weirdly. We could destroy them
        # at some point.
        LoggingHelper.error "What the?! Phrase translation #{translation.inspect} has no corresponding phrase."
        next
      end
      if phrase_updated_at > translation.created_at
        translation.is_stale = true
      end
      if latest_translations.include?(translation.id)
        translation.is_latest = true
      end
      translation.save!(:validate => false)
    end
  end
end

.segment(text) ⇒ Object

Break text into words for purposes of word count. First uses to_s to convert text to a string; so for a nil input, returns empty array. Should only be used for English text, because it only looks at words composed of regexp “w”.



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# File 'lib/air18n/phrase_translation.rb', line 596

def self.segment(text)
  text.to_s.scan(/\w+/)
end

.translation_word_count(phrase_ids_to_values) ⇒ Object

Helper method for construct_activity which counts words in a set of translations or verifications, in phrase id => English phrase value map.

Only used by old payment computing method.



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# File 'lib/air18n/phrase_translation.rb', line 620

def self.translation_word_count(phrase_ids_to_values)
  [phrase_ids_to_values.count, segment(phrase_ids_to_values.values.join(' ')).size]
end

.translations_for_locale(loc, filter_opts = {}) ⇒ Object

Returns all translations for a locale. filter_opts are passed on to self.keep_key? for filtering.



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# File 'lib/air18n/phrase_translation.rb', line 626

def self.translations_for_locale(loc, filter_opts={})
  data = {}
  case loc
  when :en
    # Uses a raw unbatched SQL query for speed.
    Phrase.connection.select_all("SELECT `key`, `value` FROM phrases").each do |record|
      data[record['key']] = record['value'] if keep_key?(record['key'], filter_opts)
    end
  else
    # Uses a raw unbatched SQL query for speed.
    PhraseTranslation.connection.select_all(PhraseTranslation.select("`key`, `value`").latest.where(:locale => loc).to_sql).each do |record|
      data[record['key']] = record['value'] if keep_key?(record['key'], filter_opts)
    end
  end
  data
end

.translations_for_locales(locales, filter_opts = {}) ⇒ Object

Provides a complete set of latest translations for specified locales, in nested hash format. filter_opts are passed to keep_key? for optional filtering, like throwing away user-generated content.



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# File 'lib/air18n/phrase_translation.rb', line 50

def self.translations_for_locales(locales, filter_opts={})

  # set up the hashes we want
  all_locales = {}
  locales.each do |loc|
    data = translations_for_locale(loc, filter_opts)
    all_locales[loc] = data
  end
  all_locales
end

.translator_activity_data(user_id = 0, opts = {}) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 186

def self.translator_activity_data user_id=0, opts={}
  user_criterion = user_id > 0 ? "AND pt.user_id=#{user_id}" : "AND NOT pt.user_id=0"
  since_criterion = "AND pt.created_at >= '#{opts[:since].to_formatted_s(:db)}'" if opts[:since]
  to_criterion = "AND pt.created_at < '#{opts[:to].to_formatted_s(:db)}'" if opts[:to]
  sql = "SELECT #{created_at_year_sql} year, #{created_at_month_sql} month, pt.user_id user_id, pt.locale locale, #{created_at_day_sql} day, p.id phrase_id, p.value phrase_value, pt.is_verification FROM phrase_translations pt, phrases p WHERE pt.phrase_id=p.id #{user_criterion} #{since_criterion} #{to_criterion} GROUP BY #{created_at_year_sql}, #{created_at_month_sql}, pt.user_id, pt.locale, pt.phrase_id"
  res = self.connection.select_rows(sql)
  phrases_per_user_locale_month_year =
    Hash.new {|h, year| h[year] =
      Hash.new {|h, month| h[month] =
        Hash.new{|h, user_id| h[user_id] =
          Hash.new{|h, locale| h[locale] =
            Hash.new {|h, day| h[day] =
              Hash.new {|h, is_verification| h[is_verification] =
                Hash.new
  } } } } } }

  res.each do |row|
    year, month, user_id, locale, day, phrase_id, phrase_value, is_verification = row
    is_verification = (is_verification == 1 || is_verification == 't')
    phrases_per_user_locale_month_year[year.to_i][month.to_i][user_id][locale][day.to_i][is_verification].merge!({phrase_id => phrase_value})
  end

  activities = []
  phrases_per_user_locale_month_year.each do |year, months|
    months.each do |month, user_ids|
      user_ids.each do |user_id, locales|
        locales.each do |locale, days|
          if opts[:daily]
            days.each do |day, phrase_ids_values_by_type|
              activities << {:year => year, :month => month, :day => day, :locale => locale, :user_id => user_id, :activity => construct_activity(phrase_ids_values_by_type)}
            end
          else
            monthly_phrase_ids_values_by_type = { false => {}, true => {} }
            days.each do |_, phrase_ids_values_by_type|
              [false, true].each do |is_verification|
                monthly_phrase_ids_values_by_type[is_verification].merge!(phrase_ids_values_by_type[is_verification])
              end
            end
            activity = construct_activity(monthly_phrase_ids_values_by_type)
            translation_ids = monthly_phrase_ids_values_by_type[false].keys
            if translation_ids.empty?
              activity[:num_phrases_prev_translated] = 0
            else
              activity[:num_phrases_prev_translated] = self.count_by_sql("select count(distinct(phrase_id)) from phrase_translations where user_id = #{user_id} and phrase_id in (#{translation_ids.join(',')}) and locale = '#{locale}' and created_at < '#{year}-#{month}-01'")
            end
            activities << {:year => year, :month => month, :locale => locale, :user_id => user_id, :activity => activity}
          end
        end
      end
    end
  end
  activities.sort do |a,b|
    if a[:year] == b[:year]
      if a[:month] == b[:month]
        if a[:user_id] == b[:user_id]
          if a[:locale] == b[:locale]
            if !a[:day] || !b[:day] || a[:day] == b[:day]
              0
            else
              a[:day] <=> b[:day]
            end
          else
            a[:locale] <=> b[:locale]
          end
        else
          a[:user_id] <=> b[:user_id]
        end
      else
        a[:month] <=> b[:month]
      end
    else
      a[:year] <=> b[:year]
    end
  end
end

.translator_activity_data_master(user_id = 0, opts = {}) ⇒ Object

Computes monthly activity for months between opts and opts. If opts is not set, starts from the current month. If opts is not set, goes back until a month in which there is no activity. If user_id is 0, computes activity for all users.



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# File 'lib/air18n/phrase_translation.rb', line 161

def self.translator_activity_data_master(user_id = 0, opts = {})
  to_date = opts[:to] ? opts[:to] : Date.today
  d = to_date.beginning_of_month
  activities = []

  while true
    break if opts[:since] && d < opts[:since]

    if d < Date.new(2012, 8, 02)
      activity_for_month = translator_activity_data(user_id, opts.merge(:since => d, :to => (d >> 1)))
    elsif d < Date.new(2012, 10, 02)
      activity_for_month = translator_activity_data_new(user_id, opts.merge(:since => d, :to => (d >> 1)))
    else
      activity_for_month = translator_activity_data_v3(user_id, opts.merge(:since => d, :to => (d >> 1)))
    end

    break if !opts[:since] && activity_for_month.blank?

    activities += activity_for_month
    d = d << 1
  end

  activities
end

.translator_activity_data_new(user_id = 0, opts = {}) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 262

def self.translator_activity_data_new user_id=0, opts={}
  user_criterion = user_id > 0 ? "AND pt.user_id=#{user_id}" : "AND NOT pt.user_id=0"
  since_criterion = "AND pt.created_at >= '#{opts[:since].to_formatted_s(:db)}'" if opts[:since]
  to_criterion = "AND pt.created_at < '#{opts[:to].to_formatted_s(:db)}'" if opts[:to]
  sql = "SELECT #{created_at_year_sql} year, #{created_at_month_sql} month, pt.user_id user_id, pt.locale locale, #{created_at_day_sql} day, p.id phrase_id, pt.source_word_count source_word_count, pt.key, pt.source_hash source_hash, pt.is_verification FROM phrase_translations pt, phrases p WHERE pt.phrase_id=p.id #{user_criterion} #{since_criterion} #{to_criterion} GROUP BY #{created_at_year_sql}, #{created_at_month_sql}, pt.user_id, pt.locale, pt.phrase_id, pt.source_hash, pt.is_verification"
  res = self.connection.select_rows(sql)
  phrases_per_user_locale_month_year =
    Hash.new {|h, year| h[year] =
      Hash.new {|h, month| h[month] =
        Hash.new{|h, user_id| h[user_id] =
          Hash.new{|h, locale| h[locale] =
            Hash.new {|h, day| h[day] =
              Hash.new {|h, is_verification| h[is_verification] =
                Hash.new
  } } } } } }

  res.each do |row|
    year, month, user_id, locale, day, phrase_id, source_word_count, key, source_hash, is_verification = row
    is_verification = (is_verification == 1 || is_verification == 't')
    phrases_per_user_locale_month_year[year.to_i][month.to_i][user_id][locale][day.to_i][is_verification].merge!({[key, source_hash] => source_word_count})
  end

  activities = []
  phrases_per_user_locale_month_year.each do |year, months|
    months.each do |month, user_ids|
      user_ids.each do |user_id, locales|
        locales.each do |locale, days|

          # Caalesce into monthly stats.
          monthly_phrase_ids_word_counts_by_type = { false => {}, true => {} }
          days.each do |_, phrase_ids_word_counts_by_type|
            monthly_phrase_ids_word_counts_by_type[false].merge!(phrase_ids_word_counts_by_type[false])
          end
          days.each do |_, phrase_ids_word_counts_by_type|
            phrase_ids_word_counts_by_type[true].each do |phrase_id, word_count|
              if !monthly_phrase_ids_word_counts_by_type[false].include?(phrase_id)
                monthly_phrase_ids_word_counts_by_type[true][phrase_id] = word_count
              end
            end
          end

          verification_sum_of_days = 0
          translation_sum_of_days = 0

          if opts[:daily]
            days.each do |day, phrase_ids_word_counts_by_type|
              daily_phrase_ids_word_counts_by_type = { false => phrase_ids_word_counts_by_type[false], true => {} }
              phrase_ids_word_counts_by_type[true].each do |phrase_id, word_count|
                if !monthly_phrase_ids_word_counts_by_type[false].include?(phrase_id)
                  daily_phrase_ids_word_counts_by_type[true][phrase_id] = word_count
                end
              end
              activities << {:year => year, :month => month, :day => day, :locale => locale, :user_id => user_id, :activity => construct_activity_new(daily_phrase_ids_word_counts_by_type)}
              translation_sum_of_days += activities.last[:activity][:word_count_translations]
              verification_sum_of_days += activities.last[:activity][:word_count_verifications]
            end
          else
            activity = construct_activity_new(monthly_phrase_ids_word_counts_by_type)
            activities << {:year => year, :month => month, :locale => locale, :user_id => user_id, :activity => activity}
          end
        end
      end
    end
  end
  activities.sort do |a,b|
    if a[:year] == b[:year]
      if a[:month] == b[:month]
        if a[:user_id] == b[:user_id]
          if a[:locale] == b[:locale]
            if !a[:day] || !b[:day] || a[:day] == b[:day]
              0
            else
              a[:day] <=> b[:day]
            end
          else
            a[:locale] <=> b[:locale]
          end
        else
          a[:user_id] <=> b[:user_id]
        end
      else
        a[:month] <=> b[:month]
      end
    else
      a[:year] <=> b[:year]
    end
  end
end

.translator_activity_data_v3(user_id = 0, opts = {}) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 351

def self.translator_activity_data_v3 user_id=0, opts={}
  aggregate_v3_translation_activity(compute_v3_translation_activity(user_id, opts[:since], opts[:to]), opts)
end

.word_counts_from_translation_pair(translation_pair) ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 451

def self.word_counts_from_translation_pair(translation_pair)
  if translation_pair[:previous_translation].blank?
    proportion_translated = 1.0
    proportion_verified = 0.0
  elsif !translation_pair[:was_stale] &&
        translation_pair[:previous_user_id] == translation_pair[:user_id]
    # Don't pay anything for retranslating your own work.
    proportion_translated = 0.0
    proportion_verified = 0.0
  else
    # Pay for translating changed/added parts, and for verifying the rest.

    if SPACELESS_LANGUAGES.include?(translation_pair[:locale].to_sym)
      distance = levenshtein_distance_fast(
        translation_pair[:previous_translation].split(''),
        translation_pair[:translation].split(''),
        1, 0, 1)
      compare_to = translation_pair[:previous_translation].size
    else
      distance = levenshtein_distance_fast(
        translation_pair[:previous_translation].scan(/[[:alnum:]]+/),
        translation_pair[:translation].scan(/[[:alnum:]]+/),
        1, 0, 1)
      compare_to = translation_pair[:previous_translation].scan(/[[:alnum:]]+/).size
    end

    if compare_to == 0
      proportion_translated = 0.0
      proportion_verified = 0.0
    else
      proportion_translated = [distance.to_f / compare_to.to_f, 1.0].min
      proportion_verified = 1.0 - proportion_translated
    end
  end

  [(translation_pair[:source_word_count] * proportion_translated).ceil,
   (translation_pair[:source_word_count] * proportion_verified).floor]
end

Instance Method Details

#check_matching_variables ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 674

def check_matching_variables
  our_variables = self.variables
  their_variables = self.phrase.variables

  if SmartCount::applies?(self.phrase.value) || SmartCount::applies?(self.value)
    our_variables = SmartCount::dedupe_things_like_tags_or_variables(
      self.locale, our_variables)
    their_variables = SmartCount::dedupe_things_like_tags_or_variables(
      I18n.default_locale, their_variables)
  end

  our_extra = our_variables - their_variables
  their_extra = their_variables - our_variables
  problems = []
  if !their_extra.empty? || !our_extra.empty?
    if !their_extra.empty?
      problems << "Var #{quote_vars their_extra} missing from translation"
    end
    if !our_extra.empty?
      problems << "Var #{quote_vars our_extra} should not be in translation"
    end
  elsif our_variables.group_by{|t| t} != their_variables.group_by{|t| t}
    # This is to catch smart-count-related cases.
    problems << "Vars don't match: #{quote_vars their_variables} vs. #{quote_vars our_variables}"
  end
  unless problems.empty?
    self.errors.add(:value, problems.join('; '))
  end
end

#check_max_length ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 664

def check_max_length
  if /maxlength:(\d+)/ =~ key
    max_length = $1.to_i
    length = value.size
    if length > max_length
      self.errors.add(:value, "Translation has #{length} characters, maximum length is #{max_length} characters.")
    end
  end
end

#check_plural_forms ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 657

def check_plural_forms
  result = SmartCount::valid?(self.phrase.value, self.value, I18n.default_locale, self.locale)
  if !result[:valid]
    self.errors.add(:value, result[:reason])
  end
end

#latest? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/air18n/phrase_translation.rb', line 736

def latest?
  is_latest
end

#previous_translation ⇒ Object

Returns the previous translation, or nil if there was none.

May return a phrase translation with a different source_hash.



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# File 'lib/air18n/phrase_translation.rb', line 150

def previous_translation
  PhraseTranslation.where(:locale => locale,
                          :phrase_id => phrase_id).
                    where('`phrase_translations`.id < ?', id).
                    last
end

#set_latest ⇒ Object

Sets is_latest of this translation, and removes the is_latest flag from all previous translations.



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# File 'lib/air18n/phrase_translation.rb', line 25

def set_latest
  self.is_latest = true
  other_translations = PhraseTranslation.find_all_by_phrase_id_and_locale(phrase_id, locale)
  other_translations.each do |other|
    if other.id != id && other.is_latest
      other.is_latest = false

      # Skip validations. This is because in the case where a translator is
      # making a new (valid) translation where the previous translation was
      # invalid, we want to be able to still mark the old translation as
      # invalid.
      other.save!(:validate => false)
    end
  end
end

#set_source_hash ⇒ Object

Sets the source_word_count and source_hash fields.



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# File 'lib/air18n/phrase_translation.rb', line 42

def set_source_hash
  self.source_word_count = PhraseTranslation.segment(phrase.value).size
  self.source_hash = phrase.compute_value_hash
end

#stale? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/air18n/phrase_translation.rb', line 740

def stale?
  is_stale
end

#variables ⇒ Object 



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# File 'lib/air18n/phrase_translation.rb', line 704

def variables
  PhraseTranslation.detect_variables(value)
end

#verification? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/air18n/phrase_translation.rb', line 732

def verification?
  is_verification
end

#verification_allowed?(latest_translation) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/air18n/phrase_translation.rb', line 776

def verification_allowed?(latest_translation)
  if latest_translation.is_verification? && !latest_translation.stale?
    return [false, "Translation already verified; nothing saved."]
  end
  if user_id == latest_translation.user_id && !latest_translation.stale?
    return [false, "You last translated this phrase, so somebody else must verify it."]
  end
  return [true]
end