Merge pull request #9 from janosch-x/master

fix for associations with class_name parameter, issue #7

lib/recurse-delete.rb

@@ -38,7 +38,7 @@ def delete_recursively(parent_class, parent_ids)
     end
     assocs.each do |assoc|
       # get the dependent class
-      dependent_class = assoc.name.to_s.classify.constantize
+      dependent_class = assoc.klass
       # get the foreign key
       foreign_key = (assoc.options[:foreign_key] or parent_class.to_s.foreign_key)
       # get all the dependent record ids