Cleared deprecation warning: "class_inheritable_attribute is deprecat…

…ed, please use class_attribute method instead"

Signed-off-by: Marc Love <marcslove@gmail.com>

lib/mongo_mapper/plugins/accessible.rb

@@ -3,18 +3,22 @@ module Plugins
     module Accessible
       extend ActiveSupport::Concern
 
+      included do
+        class_attribute :_attr_accessible
+      end
+
       module ClassMethods
         def attr_accessible(*attrs)
           raise AccessibleOrProtected.new(name) if try(:protected_attributes?)
-          self.write_inheritable_attribute(:attr_accessible, Set.new(attrs) + (accessible_attributes || []))
+          self._attr_accessible = Set.new(attrs) + (accessible_attributes || [])
         end
 
         def accessible_attributes?
           !accessible_attributes.nil?
         end
 
         def accessible_attributes
-          self.read_inheritable_attribute(:attr_accessible)
+          self._attr_accessible
         end
       end
 

lib/mongo_mapper/plugins/protected.rb

@@ -6,14 +6,18 @@ module Plugins
     module Protected
       extend ActiveSupport::Concern
 
+      included do
+        class_attribute :_attr_protected
+      end
+
       module ClassMethods
         def attr_protected(*attrs)
           raise AccessibleOrProtected.new(name) if try(:accessible_attributes?)
-          self.write_inheritable_attribute(:attr_protected, Set.new(attrs) + (protected_attributes || []))
+          self._attr_protected = Set.new(attrs) + (protected_attributes || [])
         end
 
         def protected_attributes
-          self.read_inheritable_attribute(:attr_protected)
+          self._attr_protected
         end
 
         def protected_attributes?

lib/mongo_mapper/plugins/scopes.rb

@@ -4,6 +4,10 @@ module Plugins
     module Scopes
       extend ActiveSupport::Concern
 
+      included do
+        class_attribute :_scopes
+      end
+
       module ClassMethods
         def scope(name, scope_options={})
           scopes[name] = lambda do |*args|
@@ -15,7 +19,7 @@ def scope(name, scope_options={})
         end
 
         def scopes
-          read_inheritable_attribute(:scopes) || write_inheritable_attribute(:scopes, {})
+          self._scopes || self._scopes = {}
         end
       end
     end