user.rb in doorkeeper-mongodb-5.2.0

- old
+ new

@@ -1,27 +1,15 @@
-case DOORKEEPER_ORM.to_s
-when /mongoid/
-  class User
-    include Mongoid::Document
-    include Mongoid::Timestamps
+# frozen_string_literal: true
 
-    field :name, type: String
-    field :password, type: String
-  end
-when "mongo_mapper"
-  class User
-    include MongoMapper::Document
-    timestamps!
+# [NOTE] MongoMapper support was dropped, so now only Mongoid
+class User
+  include Mongoid::Document
+  include Mongoid::Timestamps
 
-    key :name,     String
-    key :password, String
-  end
-end
+  field :name, type: String
+  field :password, type: String
 
-class User
-  if ::Rails.version.to_i < 4 || defined?(::ProtectedAttributes)
-    attr_accessible :name, :password
-  end
+  attr_accessible :name, :password if defined?(::ProtectedAttributes)
 
   def self.authenticate!(name, password)
     User.where(name: name, password: password).first
   end
 end