Administrate: Autoloading punditize fails with Zeitwerk + Rails 6 (rc1) if not using punditize

[SleeplessByte]

If you look at the explanation of https://github.com/fxn/zeitwerk/issues/45, it is clear why this happens:

• given pundit is not defined,
  
  
  
  • it tries to load the file /administrate-0.11.0/app/controllers/concerns/administrate/punditize.rb
  
  
  • it (correctly) does NOT define Administrate::Punditize
  
  
  • it errors with eager_load: expected <file> to define constant Administrate::Punditize
  
  

A solution would be:

• don't auto require/load this
• always define Administrate::Punditize, but keep it empty if Pundit doesn't exist

[skyksandr]

as a workaround - add gem 'pundit' to Gemfile and it will work.

[purinkle]

@SleeplessByte, thanks for raising this issue. Would you be able to provide specific steps to reproduce the issue so it is easier isolate the bug and fix it?

[SleeplessByte]

In your Gemfile (new rails project) add:

gem 'rails', '6.0.0.rc2'
gem 'administrate', '~>0.11'

Now add any administrate controller, and run rails in production mode (so that it definitely autoloads).

Given the tagged project in this issue (not mine), git checkout https://github.com/captproton/workcation_green/commit/6f1c3b12646dfea1707ca8045afdf60dbae8e8ff and running should also work as they added the workaround in the commit after this.

[ksoderstrom]

Another workaround for this is to not use zeitwerk, but instead the old autoloader. As per the blog post about zeitwerk integration add:

config.autoloader = :classic

to config/application.rb.