ruby-on-rails - 预定的电子邮件发布

Question

在 RoR 的活动前 2 天发布预定电子邮件的最佳方法是什么。活动日期将被存储到数据库中，我只想在活动前 2 天发出提醒。

Answer 1

You might have figured this alreay out by yourself. Well...anyway: In cases as the described I always use an external crontab job. In a certain interval (in your case e.g. each day) you dial into your application via

rails runner script.rb

or

rails runner -e class-method

The script or the method then scans the db for pending trigger dates and does whatever it should do, e.g. sending emails.

ps: Of course you have to take care of the correct environment for your rails calls.

Answer 2

你可以试试这个

在您的 schedule.rb 文件中

every 1.day do
   trigger mailer
end

并在邮件方法中

def mail_setup
  if Date.today == event_date - 2.days
     mail setup
  else
     do nothing
  end
end