create_account_payment_line() is supposed to returned a form view for a
single payment order and a tree view for multiple payment orders. Before
this fix, it would return a tree view if you were payment more than 1
invoices while generating a single payment order, because the list
result_payorder_ids would contain several time the same ID.
Don't set reference_type field on account.move required=True, because it
causes a lot of problems in other modules that don't depend on this one.
Setting it as required in the view is enough.
context of payment orders, she should ocus on the amount that
is due to be paid. In this method we are forcing to display both
the amount due in company and in the invoice currency.
We then hide the fields debit and credit, because they add no value.
Improvements include:
- full re-organisation of modules and big re-organisation of the code
- simplification of the code related to the fact that support for direct debit is now in t
he base module, not added by an optional module account_direct_debit (module was removed)
- new design of the wizard to select move lines to pay
- support for non-SEPA file transfer-
- support for German direct debit SEPA files (fixes bug #129)
- remove workflow of payment.order
- add wizard of selection of move lines to pay
