Rails NoMethodError：＃<jobclass

Question

=“”

保存记录后尝试执行作业。

这是我的代码：

/app/models/some_todo_model.rb

class SomeTodoModel < ApplicationRecord
  belongs_to :user

  after_save :create_job_for_notificate_on_due_date

  def create_job_for_notificate_on_due_date
    EmitsNotificationsJob.set(wait_until: self.due_date).perform_later()
  end
end

/app/jobs/emits_notifications_job.rb

class EmitsNotificationsJob < ApplicationJob
  queue_as :default

  # discard_on ActiveJob::DeserializationError

  def perform()
  end
end

EmitsNotificationsJob.set(wait_until: self.due_date)设置得很好。

但是当我打电话给perform_later时，出现以下错误：
NoMethodError: undefined method 'name' for #<EmitsNotificationsJob:0x000056387e74ce78>

由于我遵循文档here，因此我不明白自己的问题。

由于相同的原因，如果我取消注释discard_on行，则出现以下错误：
NoMethodError: undefined method 'discard_on' for EmitsNotificationsJob:Class

Answer 1

UPD 您复制了错误的示例（作业后遗漏import React from "react"; import { BrowserRouter as Router, Route, NavLink } from "react-router-dom"; function BasicExample() { return ( <Router> <div> <ul> <li> <NavLink to="/topics">Topics</NavLink> </li> </ul> <hr /> <Route path="/topics" component={Topics} /> </div> </Router> ); } class Topics extends React.Component { render() { const { match, location } = this.props; let isActive = false; if (location.pathname === `${match.url}/props-v-state`) { isActive = true; } return ( <div> <h2>Topics</h2> <ul> <li> <NavLink to={`${match.url}/components`}>Components</NavLink> </li> <li> <NavLink to={`${match.url}/props-v-state`} activeStyle={{ color: "green" }} > <div> {isActive ? ( <span>I am active</span> ) : ( <span>I am inactive</span> )} </div> </NavLink> </li> </ul> <Route path={`${match.path}/:topicId`} component={Topic} /> <Route exact path={match.path} render={() => <h3>Please select a topic.</h3>} /> </div> ); } } function Topic({ match }) { return ( <div> <h3>{match.params.topicId}</h3> </div> ); } export default BasicExample; ）

.class

此外，我强烈建议您从class ApplicationJob before_enqueue { |job| $statsd.increment "#{job.class.name.underscore}.enqueue" } end 中删除before_enqueue行。这只是app/jobs/application_job.rb回调的示例，并且该示例似乎无法正常工作。