Removing ForemanOpenScap leftovers

Problem:

I have trouble accessing /api/v2/hosts route because of removed foreman-open-scap:

{
  "error": {"message":"The single-table inheritance mechanism failed to locate the subclass: 'ForemanOpenscap::ArfReport'. This error is raised because the column 'type' is reserved for storing the class in case of inheritance. Please rename this column if you didn't intend it to be used for storing the inheritance class or overwrite Report.inheritance_column to use another column for that information."}
}

I found how to remove a compute resource with rake-console; however I am unsure since OpenScap is clearly no compute resource

Thanks!

Foreman and Proxy versions:
1.18.1

2019-03-12T15:52:16 [W|app|1c314] Action failed
ActionView::Template::Error: The single-table inheritance mechanism failed to locate the subclass: 'ForemanOpenscap::ArfReport'. This error is raised because the column 'type' is reserved for storing the class in case of inheritance. Please rename this column if you didn't intend it to be used for storing the inheritance class or overwrite Report.inheritance_column to use another column for that information.
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/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/actionpack-5.1.6/lib/action_dispatch/middleware/static.rb:125:in `call'
/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/rack-2.0.3/lib/rack/sendfile.rb:111:in `call'
/opt/theforeman/tfm/root/usr/share/gems/gems/secure_headers-5.0.5/lib/secure_headers/middleware.rb:13:in `call'
/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/railties-5.1.6/lib/rails/engine.rb:522:in `call'
/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/railties-5.1.6/lib/rails/railtie.rb:185:in `public_send'
/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/railties-5.1.6/lib/rails/railtie.rb:185:in `method_missing'
/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/rack-2.0.3/lib/rack/urlmap.rb:68:in `block in call'
/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/rack-2.0.3/lib/rack/urlmap.rb:53:in `each'
/opt/theforeman/tfm-ror51/root/usr/share/gems/gems/rack-2.0.3/lib/rack/urlmap.rb:53:in `call'
/usr/share/passenger/phusion_passenger/rack/thread_handler_extension.rb:74:in `process_request'
/usr/share/passenger/phusion_passenger/request_handler/thread_handler.rb:141:in `accept_and_process_next_request'
/usr/share/passenger/phusion_passenger/request_handler/thread_handler.rb:109:in `main_loop'
/usr/share/passenger/phusion_passenger/request_handler.rb:455:in `block (3 levels) in start_threads'
/opt/theforeman/tfm/root/usr/share/gems/gems/logging-2.2.2/lib/logging/diagnostic_context.rb:474:in `block in create_with_logging_context'
2019-03-12T15:52:16 [I|app|1c314]   Rendering api/v2/errors/standard_error.json.rabl within api/v2/layouts/error_layout
2019-03-12T15:52:16 [I|app|1c314]   Rendered api/v2/errors/standard_error.json.rabl within api/v2/layouts/error_layout (1.4ms)
2019-03-12T15:52:16 [I|app|1c314] Completed 500 Internal Server Error in 448ms (Views: 4.8ms | ActiveRecord: 147.4ms)

Unfortunately, there’s no good cleanup mechanism as of now. You’ll need to clean up database manually. This should do the trick (make backup first!)

foreman-rake console
Report.where(:type => 'ForemanOpenscap::ArfReport').delete_all

this may fail on some foreign keys. A slightly cleaner way would be installing the plugin again and cleaning all reports before removing it.

Hello Marek, 80 reports where deleted and now the api works again. Seems to have done no harm; I’ll keep the snapshot anyway.

Many thanks!