Fixing PGError: ERROR: column active_admin_comments.admin does not exist. Rails 3 does not like where(:symbol => :symbol) for some reason. Could be related to the squeel gem.

Author: epochwolf

lib/active_admin/comments/views/active_admin_comments.rb

@@ -21,7 +21,7 @@ def title_content
         end
 
         def record_comments
-          @record_comments ||= @record.active_admin_comments.where(:namespace => active_admin_namespace.name)
+          @record_comments ||= @record.active_admin_comments.where(:namespace => active_admin_namespace.name.to_s)
         end
 
         def build_comments