Question

Hi all SO users fixing bugs on Thanksgiving,

My delayed job setup is working fine, I have it running in production and development, but when accessing the users section of rails admin, I get the error

uninitialized constant ActiveRecord::Base::Delayed::Job

Am I supposed to define a delayed job class somewhere? If so, what’s the correct syntax for that? Delayed::Job or DelayedJob? I’ve tried doing this with no success.

I also ran the migration to create the jobs table. Maybe there is an association between user and delayed job that is defined somewhere? Not too sure…

Here’s a full trace:

ActionView::Template::Error (uninitialized constant ActiveRecord::Base::Delayed::Job):
10: 
11:   export_action = RailsAdmin::Config::Actions.find(:export, { :controller => self.controller, :abstract_model => @abstract_model })
12:   export_action = export_action && authorized?(export_action.authorization_key, @abstract_model) ? export_action : nil
13: 
14:   properties = @model_config.list.with(:controller => self.controller, :view => self, :object => @abstract_model.model.new).visible_fields
15:   # columns paginate
16:   @filterable_fields = @model_config.list.fields.select(&:filterable?)


activerecord (3.2.3) lib/active_record/inheritance.rb:119:in `compute_type'
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  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/adapters/active_record.rb:233:in `association_model_lookup'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/adapters/active_record.rb:70:in `block (2 levels) in associations'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:63:in `call'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:63:in `associated_model_config'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/fields/association.rb:33:in `block in <class:Association>'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/configurable.rb:68:in `instance_eval'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/configurable.rb:68:in `block in register_instance_option'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/configurable.rb:42:in `block in register_instance_option'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/proxyable/proxy.rb:31:in `method_missing'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/has_fields.rb:113:in `select'
  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/lib/rails_admin/config/has_fields.rb:113:in `visible_fields'
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  /var/www/apps/miracleticket/shared/bundle/ruby/1.9.1/bundler/gems/rails_admin-556e9032d23f/app/views/rails_admin/main/index.html.haml:13:in `__var_www_apps_miracleticket_shared_bundle_ruby_______bundler_gems_rails_admin____e____d__f_app_views_rails_admin_main_index_html_haml___3620510256847226470_59069620'
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  actionpack (3.2.3) lib/action_view/renderer/template_renderer.rb:45:in `render_template'
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  newrelic_rpm (3.5.0.1) lib/new_relic/agent/instrumentation/rails3/action_controller.rb:33:in `process_action'
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  /home/shark/.rvm/gems/ruby-1.9.3-p194/gems/passenger-3.0.12/lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
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Answer 1

It looks like some class somewhere is associated with the Delayed::Job class. I’m guessing that you’ve got the class_name option on that association with Delayed::Job specified. I’m not sure how that would work in practice as Delayed::Job isn’t an active record class. You’d really have to associate with the active record backend for delayed jobs (Delayed::Backend::ActiveRecord::Job).

In the first instance it’d be worth commenting out that association and seeing if it works without it. In the second instance it’d be worth rethinking how to associate your users with the jobs being processed.