diff --git a/app/models/user/attribute.rb b/app/models/user/attribute.rb
index af8a1106..84650421 100644
--- a/app/models/user/attribute.rb
+++ b/app/models/user/attribute.rb
@@ -7,7 +7,7 @@ class Attribute
   field :built_in, :type => Boolean, :default => false
   field :disabled, :type => Boolean, :default => false
   
-  has_many :attribute_fields, :autosave => true, :dependent => :destroy
+  embeds_many :attribute_fields, :cascade_callbacks => true
   has_one :i18n_variable, :as => :language_value, :autosave => true, :dependent => :destroy
   accepts_nested_attributes_for :attribute_fields, :allow_destroy => true
   
diff --git a/app/models/user/attribute_field.rb b/app/models/user/attribute_field.rb
index 42bbf910..2d909b3e 100644
--- a/app/models/user/attribute_field.rb
+++ b/app/models/user/attribute_field.rb
@@ -10,7 +10,7 @@ class AttributeField
   field :built_in, :type => Boolean, :default => false
   field :disabled, :type => Boolean, :default => false
   
-  belongs_to :attribute
+  embedded_in :attribute
   has_one :i18n_variable, :as => :language_value, :autosave => true, :dependent => :destroy
   has_many :attribute_values
   
diff --git a/app/models/user/role.rb b/app/models/user/role.rb
index 86f7266f..788d281d 100644
--- a/app/models/user/role.rb
+++ b/app/models/user/role.rb
@@ -7,7 +7,7 @@ class Role
   field :built_in, :type => Boolean, :default => false
   field :disabled, :type => Boolean, :default => false
   
-  has_many :sub_roles, :autosave => true, :dependent => :destroy
+  embeds_many :sub_roles, :cascade_callbacks => true
   has_one :i18n_variable, :as => :language_value, :autosave => true, :dependent => :destroy
   has_many :users
   accepts_nested_attributes_for :i18n_variable, :allow_destroy => true
diff --git a/app/models/user/sub_role.rb b/app/models/user/sub_role.rb
index cdefb5f5..47f3e2de 100644
--- a/app/models/user/sub_role.rb
+++ b/app/models/user/sub_role.rb
@@ -1,6 +1,6 @@
 class SubRole < Attribute
   
-  belongs_to :role
+  embedded_in :role
   has_and_belongs_to_many :users
   
   # Get an sub_role from key