lib/mattock/configurable.rb in mattock-0.1.1 vs lib/mattock/configurable.rb in mattock-0.1.2

@@ -109,10 +109,11 @@
     end
     extend ClassMethods
 
     def copy_settings_to(other)
       self.class.copy_settings(self, other)
+      self
     end
 
     def setup_defaults
       self.class.set_defaults_on(self)
       self
@@ -122,9 +123,13 @@
       missing = self.class.missing_required_fields_on(self)
       unless missing.empty?
         raise "Required field#{missing.length > 1 ? "s" : ""} #{missing.map{|field| field.to_s.inspect}.join(", ")} unset on #{self.inspect}"
       end
       self
+    end
+
+    def unset?(value)
+      value == RequiredField
     end
 
     def setting(name, default_value = nil)
       self.class.setting(name, default_value)
       instance_variable_set("@#{name}", default_value)