odoo custom modul update problem
I have a simple module, where I have 3 fields added to res.partner.
Now when I want to add 1 new field in the .py file.
I get this error:
psycopg2.ProgrammingError: column res_partner.new_field4 does not exist
Why is that so? It is only working for me when I uninstall, and reinstall the modul. But this way is very bad, because you will lose all values in the old fields.
Any solution for this?????