CanCanCan 3.2 requires ActiveRecord adapter

[starpeak]

When I update CanCanCan on a Rails project, that does use Mongoid instead of AR, I get the following error on startup:

.../gems/ruby-2.6.6/gems/cancancan-3.2.0/lib/cancan/config.rb:6:in `valid_accessible_by_strategies': uninitialized constant CanCan::ModelAdapters::ActiveRecordAdapter (NameError)

It does not matter if I include cancancan-mongoid or not. In my optinion it should check if AR is used on the config valid_accessible_by_strategies like it does on the loading of files in cancan.rb

[coorasse]

@ghiculescu caused by

cancancan/lib/cancan/config.rb

Line 6 in 3c17def

strategies << :subquery unless CanCan::ModelAdapters::ActiveRecordAdapter.version_lower?('5.0.0')

, right? Would you mind offering a patch for the mongoid people? :) I think we don't need these configurations for Mongoid.

[ghiculescu]

Sorry about that @starpeak!

Can you please check that #674 fixes things?

[ghiculescu]

@coorasse should we aim for a 3.2.1 release with #673 + #674 ?