ComplianceControl.dynamic_attributes: Use `stored_attributes`

This method must return the keys of all `control_attributes` in
subclasses of `ComplianceControl`.

Now that we're not using `hstore_accessor`, this breaks. Use
`stored_attributes` to get the keys since we create virtual attributes
using Rails' `store_accessor`.

Refs #5316

1 files changed, 1 insertions, 1 deletions

diff --git a/app/models/compliance_control.rb b/app/models/compliance_control.rb
index 847e3a253..3fcf26f5d 100644
--- a/app/models/compliance_control.rb
+++ b/app/models/compliance_control.rb
@@ -6,7 +6,7 @@ class ComplianceControl < ActiveRecord::Base
     def prerequisite; I18n.t('compliance_controls.metas.no_prerequisite'); end
     def predicate; I18n.t("compliance_controls.#{self.name.underscore}.description") end
     def dynamic_attributes
-      hstore_metadata_for_control_attributes.keys
+      stored_attributes[:control_attributes]
     end
 
     def policy_class