'No connection pool' Error after upgrading to Rails 7.1.3

[Mukul goyal]

Hi Team,

We've custom sub class inheriting PublicActivity::Activity, where we've some custom methods defined something like as below

class CustomActivityLog < PublicActivity::Activity

  # some custom methods here

end

and we've been using PublicActivity::Activity indirectly via CustomActivityLog. And, we've been creating/updating activities using CustomActivityLog.

But, after upgrading to Rails 7.1.3, we've started getting below errors while using CustomActivityLog

ActiveRecord::ConnectionNotEstablished:

       No connection pool for 'CustomActivityLog' found for the '#<Role:0x000000012bf15b40>' role.

We're bound to continue using CustomActivityLog instead of changing our codebase to use PublicActivity::Activity as our codebase grew bigger over time.

Thanks in advance and any help would be really appreciated.

Thanks,

Mukul