# File lib/dm-core/associations/relationship.rb, line 221 def parent_model return @parent_model if defined?(@parent_model) parent_model_name = self.parent_model_name @parent_model = DataMapper::Ext::Module.find_const(@child_model || Object, parent_model_name) rescue NameError raise NameError, "Cannot find the parent_model #{parent_model_name} for #{child_model_name} in #{name}" end