Rails 3/delayed_job - Wanted: Basic example of delayed mail

Question

I\'ve been trying to figure out how to send delayed mail using delayed_job with rails 3. I\'ve tried pretty much every combination of feasible possibilities I can think of -

Answer 1

I found in Rails 3 with mongoid that removing the handle_asynchronously line gets it to work. I was having all kinds of problems, and it appeared that delayed_job wasn't recognizing any objects within my Emailer class. Removing handle_asynchronously fixed it.

Answer 2

I agree with andrea - I was having this exact problem, and after switching my local development database from sqlite to mysql, I can run code like

Emailer.delay({:run_at => 5.minutes.from_now}).welcome(@user)

and it sends the email 5 minutes later. Note that you might need a bigger delay than five minutes (in case of time zone weirdness) to be sure it is working.

Answer 3

Both using the .delay method and setting handle_asynchronously :test_mail is redundant. Try removing the .delay method from your code. use simply

Testmailer.test_mail   # without .deliver due to a delayed_job issue

However, I ran some test on your configuration and when using sqlite, run_at is simply ignored (do not know why), but when using mysql2 everything works fine.