命名空间rails属居

Question

I have the following configuration

module Account
   class Permission <ApplicationRecord
   end
end

module Account
   class GroupPermission < ApplicationRecord
     belongs_to: permission
   end
end

Table: account_permissions
          name character varying,
             
Table: account_group_permissions
        account_permissions_id bigint,
       account_groups_id bigint,

When I try to access the Account :: GroupPermission instance and through it access Account :: Permission returns nil.

Only works if I specify class_name:

Answer 1

Is there a typo in your belongs_to ? It should be belongs_to :permission

Also, use permission_id as your foreign key in the account_group_permissions table.