Class: Decidim::MachineTranslationResourceJob

Inherits:
ApplicationJob
  • Object
show all
Defined in:
app/jobs/decidim/machine_translation_resource_job.rb

Overview

This job is part of the machine translation flow. This one is fired every time a ‘Decidim::TranslatableResource` is created or updated. If any of the attributes defines as translatable is modified, then for each of those attributes this job will schedule a `Decidim::MachineTranslationFieldsJob`.

Instance Method Summary collapse

Instance Method Details

#default_locale(resource) ⇒ Object 



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# File 'app/jobs/decidim/machine_translation_resource_job.rb', line 87

def default_locale(resource)
  if resource.respond_to? :organization
    resource.organization.default_locale.to_s
  else
    Decidim.available_locales.first.to_s
  end
end

#default_locale_changed_or_translation_removed(previous_changes, field) ⇒ Object

rubocop: enable Metrics/CyclomaticComplexity



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# File 'app/jobs/decidim/machine_translation_resource_job.rb', line 54

def default_locale_changed_or_translation_removed(previous_changes, field)
  default_locale = default_locale(@resource)
  values = previous_changes[field]
  old_value = values.first
  new_value = values.last
  return true unless old_value.is_a?(Hash)

  return true if old_value[default_locale] != new_value[default_locale]

  # In a case where the default locale is not changed
  # but a translation of a different locale is deleted
  # We trigger a job to translate only for that locale
  if old_value[default_locale] == new_value[default_locale]
    locales_present = old_value.keys
    locales_present.each do |locale|
      @locales_to_be_translated << locale if old_value[locale] != new_value[locale] && new_value[locale] == ""
    end
  end

  @locales_to_be_translated.present?
end

#pending_locales(translated_locales) ⇒ Object 



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# File 'app/jobs/decidim/machine_translation_resource_job.rb', line 114

def pending_locales(translated_locales)
  available_locales = @resource.organization.available_locales.map(&:to_s) if @resource.respond_to? :organization
  available_locales ||= Decidim.available_locales.map(&:to_s)
  available_locales - translated_locales
end

#perform(resource, previous_changes, source_locale) ⇒ Object

Performs the job.

resource - Any kind of ‘Decidim::TranslatableResource` model instance previous_changes - A Hash with the set fo changes. This is intended to be

taken from `resource.previous_changes`, but we need to manually pass
them to the job because the value gets lost when serializing the
resource.

source_locale - A Symbol representing the source locale for the translation



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# File 'app/jobs/decidim/machine_translation_resource_job.rb', line 21

def perform(resource, previous_changes, source_locale)
  return unless Decidim.machine_translation_service_klass

  @resource = resource
  @locales_to_be_translated = []
  translatable_fields = @resource.class.translatable_fields_list.map(&:to_s)
  translatable_fields.each do |field|
    next unless @resource[field].is_a?(Hash) && previous_changes.keys.include?(field)

    translated_locales = translated_locales_list(field)
    remove_duplicate_translations(field, translated_locales) if @resource[field]["machine_translations"].present?

    next unless default_locale_changed_or_translation_removed(previous_changes, field)

    @locales_to_be_translated += pending_locales(translated_locales) if @locales_to_be_translated.blank?

    @locales_to_be_translated.each do |target_locale|
      Decidim::MachineTranslationFieldsJob.perform_later(
        @resource,
        field,
        resource_field_value(
          previous_changes,
          field,
          source_locale
        ),
        target_locale,
        source_locale
      )
    end
  end
end

#remove_duplicate_translations(field, translated_locales) ⇒ Object 



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# File 'app/jobs/decidim/machine_translation_resource_job.rb', line 107

def remove_duplicate_translations(field, translated_locales)
  machine_translated_locale = @resource[field]["machine_translations"].keys
  unless (translated_locales & machine_translated_locale).nil?
    (translated_locales & machine_translated_locale).each { |key| @resource[field]["machine_translations"].delete key }
  end
end

#resource_field_value(previous_changes, field, source_locale) ⇒ Object 



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# File 'app/jobs/decidim/machine_translation_resource_job.rb', line 76

def resource_field_value(previous_changes, field, source_locale)
  values = previous_changes[field]
  new_value = values.last
  if new_value.is_a?(Hash)
    locale = source_locale || default_locale(@resource)
    return new_value[locale]
  end

  new_value
end

#translated_locales_list(field) ⇒ Object 



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# File 'app/jobs/decidim/machine_translation_resource_job.rb', line 95

def translated_locales_list(field)
  return nil unless @resource[field].is_a? Hash

  translated_locales = []
  existing_locales = @resource[field].keys - ["machine_translations"]
  existing_locales.each do |locale|
    translated_locales << locale if @resource[field][locale].present?
  end

  translated_locales
end