discourse/discourse · error · Discourse::NotFound

Discourse::NotFound

Error message

Discourse::NotFound

What it means

Error "Discourse::NotFound" thrown in discourse/discourse.

Source

Thrown at app/controllers/admin/site_settings_controller.rb:72

      on_failed_policy(:settings_are_not_deprecated) do |policy|
        raise Discourse::InvalidParameters, policy.reason
      end
      on_failed_policy(:settings_are_visible) do |policy|
        raise Discourse::InvalidParameters, policy.reason
      end
      on_failed_policy(:settings_are_unshadowed_globally) do |policy|
        raise Discourse::InvalidParameters, policy.reason
      end
      on_failed_policy(:settings_are_configurable) do |policy|
        raise Discourse::InvalidParameters, policy.reason
      end
    end
  end

  def user_count
    params.require(:site_setting_id)
    id = params[:site_setting_id]
    raise Discourse::NotFound unless id.start_with?("default_")
    raise Discourse::NotFound unless SiteSetting.has_setting?(id)
    new_value = value_or_default(params[id])

    raise_access_hidden_setting(id)
    previous_value = value_or_default(SiteSetting.public_send(id))
    json = {}

    if (user_option = SiteSettingUpdateExistingUsers.user_options[id.to_sym]).present?
      if user_option == "text_size_key"
        previous_value = UserOption.text_sizes[previous_value.to_sym]
      elsif user_option == "title_count_mode_key"
        previous_value = UserOption.title_count_modes[previous_value.to_sym]
      end

      json[:user_count] = UserOption.human_users.where(user_option => previous_value).count
    elsif id.start_with?("default_categories_")
      previous_category_ids = previous_value.split("|")
      new_category_ids = new_value.split("|")

View on GitHub (pinned to 1b2d7253e8)

When it happens

Trigger: Thrown at app/controllers/admin/site_settings_controller.rb:72 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of discourse/discourse@1b2d7253e8 (2026-08-26). Data as JSON: /api/errors/c6e8e8445eec4a55. Report an issue: GitHub.