discourse/lib/site_settings/deprecated_settings.rb

# frozen_string_literal: true

module SiteSettings; end

module SiteSettings::DeprecatedSettings
  SETTINGS = [
    # [<old setting>, <new_setting>, <override>, <version to drop>]
    ['search_tokenize_chinese_japanese_korean', 'search_tokenize_chinese', true, '2.9'],
    ['default_categories_regular', 'default_categories_normal', true, '3.0'],
  ]

  def setup_deprecated_methods
    SETTINGS.each do |old_setting, new_setting, override, version|
      unless override
        SiteSetting.singleton_class.public_send(
          :alias_method, :"_#{old_setting}", :"#{old_setting}"
        )
      end

      define_singleton_method old_setting do |warn: true|
        if warn
          Discourse.deprecate(
            "`SiteSetting.#{old_setting}` has been deprecated. Please use `SiteSetting.#{new_setting}` instead.",
            drop_from: version
          )
        end

        self.public_send(override ? new_setting : "_#{old_setting}")
      end

      unless override
        SiteSetting.singleton_class.public_send(
          :alias_method, :"_#{old_setting}?", :"#{old_setting}?"
        )
      end

      define_singleton_method "#{old_setting}?" do |warn: true|
        if warn
          Discourse.deprecate(
            "`SiteSetting.#{old_setting}?` has been deprecated. Please use `SiteSetting.#{new_setting}?` instead.",
            drop_from: version
          )
        end

        self.public_send("#{override ? new_setting : "_" + old_setting}?")
      end

      unless override
        SiteSetting.singleton_class.public_send(
          :alias_method, :"_#{old_setting}=", :"#{old_setting}="
        )
      end

      define_singleton_method "#{old_setting}=" do |val, warn: true|
        if warn
          Discourse.deprecate(
            "`SiteSetting.#{old_setting}=` has been deprecated. Please use `SiteSetting.#{new_setting}=` instead.",
            drop_from: version
          )
        end

        self.public_send("#{override ? new_setting : "_" + old_setting}=", val)
      end
    end
  end
end