chore: fix mongoid 8 issue

Author: WalaThabet

Gemfile.lock

@@ -11,7 +11,7 @@ PATH
       activeadmin (>= 3.3)
       jquery-rails
       kaminari-mongoid
-      mongoid (>= 6.0, < 9.1)
+      mongoid (~> 8.0)
       sass-rails (>= 3.1.4)
 
 GEM
@@ -209,10 +209,11 @@ GEM
     minitest (5.25.5)
     mongo (2.21.0)
       bson (>= 4.14.1, < 6.0.0)
-    mongoid (9.0.6)
+    mongoid (8.1.10)
       activemodel (>= 5.1, < 8.1, != 7.0.0)
       concurrent-ruby (>= 1.0.5, < 2.0)
       mongo (>= 2.18.0, < 3.0.0)
+      ruby2_keywords (~> 0.0.5)
     net-imap (0.5.6)
       date
       net-protocol

activeadmin-mongoid.gemspec

@@ -19,7 +19,7 @@ Gem::Specification.new do |gem|
 
   gem.required_ruby_version = '>= 2.4'
 
-  gem.add_runtime_dependency 'mongoid',     '>= 6.0', '< 9.1'
+  gem.add_runtime_dependency 'mongoid', '~> 8.0'
   gem.add_runtime_dependency 'activeadmin', '>= 3.3'
   gem.add_runtime_dependency 'kaminari-mongoid'
   gem.add_runtime_dependency 'jquery-rails'

lib/active_admin/mongoid.rb

@@ -21,6 +21,7 @@
 require 'active_admin/mongoid/controllers/resource_controller'
 require 'active_admin/mongoid/resource/attributes'
 require 'active_admin/mongoid/csv_builder'
+require 'inherited_resources'
 
 module ActiveAdmin
   module Mongoid

lib/active_admin/mongoid/controllers/resource_controller.rb

@@ -1,15 +1,18 @@
 require 'active_admin/engine'
-require 'inherited_resources'
 
 ActiveAdmin::Engine.module_eval do
-  initializer 'active_admin.mongoid.resource_controller' do
-    class ActiveAdmin::ResourceController
-      def build_new_resource
-        scoped_collection.send(
-          method_for_build,
-          *resource_params
-        )
+  config.after_initialize do
+    if defined?(ActiveAdmin::ResourceController)
+      ActiveAdmin::ResourceController.class_eval do
+        def build_new_resource
+          scoped_collection.send(
+            method_for_build,
+            *resource_params
+          )
+        end
       end
+    else
+      warn "⚠️ ActiveAdmin::ResourceController is not loaded yet — skipping patch"
     end
   end
 end

test_app/config/environment.rb

@@ -1,5 +1,6 @@
 # Load the rails application
 require File.expand_path('application', __dir__)
+require 'inherited_resources'
 
 # Initialize the rails application
 Rails.application.initialize!

test_app/config/mongoid.8.yml

@@ -0,0 +1,14 @@
+development:
+  clients:
+    default:
+      database: activeadmin_mongoid_development
+      hosts:
+        - localhost:27017
+
+test:
+  clients:
+    default:
+      database: activeadmin_mongoid_test
+      hosts:
+        - localhost:27017
+#scope_overwrite_exception: true