Question

I am having many problems running DJ. Primarily, I cannot get delayed_job running any methods that change the database. I am testing locally with a sqlite3 database, DJ 3.0.0, and I even added the delayed_job_active_record gem.

I have, for example, tried to run the following method in the background:

 @user = User.find(1)
 @user.delay.recorder_method

Where this method is:

 def recorder_method
    self.relevant_field +=1
    update
 end

This creates a delayed job, and the handler has the appropriate info for the user and the appropriate method name. The script runs the job, thinks it has succeeded and thus deletes the record from the delayed_job table. BUT the user is unchanged (the database is unchanged).

What on earth is going wrong? Note that, when I run the same code (“@user.delay.recorder_method”) from rails console, it works.. and the difference is the handler created by the rails console call is:

 --- !ruby/object:Delayed::PerformableMethod
    object: !ruby/ActiveRecord:User
    attributes:
        ... (attribute info and rest of file)

Whereas the one created in by the call in a controller action is:

 --- !ruby/struct:Delayed::PerformableMethod 
    object: !ruby/ActiveRecord:User 
    attributes: 

Not the difference in line 1 of both things (ruby/object vs ruby/struct.. the former works and the latter doesn’t). Maybe this is something that might signal what is going wrong. Any ideas, anybody?

Answer 1

For anyone interested, removing the following lines from boot.rb solved this issue for me:

 require 'yaml'
 YAML::ENGINE.yamler = 'syck'