I have a model tmtrace, that requires a timestamp as a PK. Hence, id not needed... If id were to be defined as PK, then that would create an "create anomaly" as it would be possible to insert the same value twice...
FuelPHP tells me: "Property "id" not found for Model_Tmtrace." when I define the model without the id field.. What is the right way of doing this? Should I define an id field and not set it to PK just to make the interpreter(or compiler.. or what applies) happy?
Not required, the ORM requires a unique primary key. That does not have to be a number, and it does not have to be an auto_increment column. But if it isn't you have to assign the value yourself before you save the object.