I know that syntax but it will make operations with your context on a 'new' recordset (self.env['object.model']). What we want is when you are in a function 'a_function(self)' and call 'another_function(self)' in the same model (in an inherited module or not), we want to add features to current context. We call obviously the function like : def a_function(self): (...) self.another_function() Is it possible ?