当引发异常时,我使用它来显示自定义错误页面。
rescue_from Exception do |exception|
logger.error exception.class
logger.error exception.message
logger.error exception.backtrace.join "\n"
@exception = exception
# ExceptionNotifier::Notifier.exception_notification env, @exception
respond_to do |format|
if [AbstractController::ActionNotFound, ActiveRecord::RecordNotFound, ActionController::RoutingError, ActionController::UnknownAction].include?(exception.class)
format.html { render :template => "errors/404", :status => 404 }
format.js { render :nothing => true, :status => 404 }
format.xml { render :nothing => true, :status => 404 }
elsif exception.class == CanCan::AccessDenied
format.html {
render :template => "errors/401", :status => 401 #, :layout => 'application'
}
# format.js { render :json => { :errors => [exception.message] }, :status => 401 }
# format.js { render :js => 'alert("Hello 401")' }
format.js { render :template => 'errors/401.js.erb' }
else
ExceptionNotifier::Notifier.exception_notification(env, exception).deliver
format.html { render :template => "errors/500", :status => 500 } #, :layout => 'im2/application' }
# format.js { render :nothing => true, :status => 500 }
format.js { render :template => 'errors/500.js.erb' }
end
end
end