jordi fita mas 97ef02b0f9 Add views to compute taxes and total amount of invoices
They are not functions because i need to join them with the main
invoice relation, and although possible is a bit more awkward with
functions.

The taxes have their own relation because i will need them grouped by
their name in the PDF, so it will probably be a select for that
relation.
2023-02-22 14:39:38 +01:00
..
2023-01-17 10:40:22 +01:00
2023-01-22 20:37:34 +01:00