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I can send a comment to the author of the post with this function.How can I make a function that will send comments to posts for the last hour to the authors of these posts?

I am new to this business

class CommentMailer < ApplicationMailer

  def new_comment(comment)
    @comment = comment
    @post = @comment.post
    mail to: @post.user.email, subject: "New comment on your post"
  end
end
Первушин Евгений
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1 Answers1

2

You can invoke job when create new post (in controller or somewhere)

NewPostCommentsCheckerJob.perform_later(post_id)

And define it like this

class NewPostCommentsCheckerJob < ApplicationJob
  RUN_EVERY = 1.hour

  def perform(post_id)
    Post.
      find_by(id: post_id).
      comments.
      where(created_at: RUN_EVERY.ago..Time.current).
      find_each do |new_comment|
        CommentMailer.new_comment(new_comment).deliver_later
      end

    self.class.perform_later(post_id, wait: RUN_EVERY)
  end
end

It will be invoked every hour, check new comments for last hour and call method of your mailer

Please also look here other ways to reschedule job:

How do I schedule recurring jobs in Active Job (Rails 4.2)?

mechnicov
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