before_action :lookup_user_block, :only => [:show, :edit, :update, :revoke]
before_action :require_valid_params, :only => [:create, :update]
before_action :check_database_readable
before_action :lookup_user_block, :only => [:show, :edit, :update, :revoke]
before_action :require_valid_params, :only => [:create, :update]
before_action :check_database_readable