The primary key of a database table (which we call "Model" in Lino) is one of it fields which holds the unique identification of each row. This field is often not shown to the user.
Internal Server Error¶
When an exception occurs that is not catched, then Lino behaves like any Django application and return a HTTP return code 500.
Lino Sunto is the first free (GPL) Lino application developed by somebody else than the author. It is hosted at https://github.com/ManuelWeidmann/lino-sunto