With these changes, we allow the contract line start date to be computed
using the order confirmation date. When the product is configured with
any of the options set in contract_start_date_method other than manual,
the start date will be calculated based on the established date and the
selected period.
Additionally, we can force the month in which we will work in case the
frequency is yearly, quarterly, or semesterly.
Is not added support for daily, weekly or monthlylastday in this commit.
Before this changes, when trying to edit a line of sale order, it was
opening the form of the line. But following the way to work of odoo
with sale event, we have make a new contract configurator that will
be opened when selecting a product of type contract.
monthlylastday is (almost) not a special case anymore \o/.
montlylastday is simply a montly period where the
periods are aligned on month boundaries.
The last bit of special casing is that postpaid generates
invoice the day after the last dasy of the period, except
for monthlylastday where the invoice is generated on the
last day of the period. This last exception will disappear
when we put the offset under user control.
This is a breaking change because the post-paid/pre-paid
mode becomes relevant for monthlylastday invoicing.
The field becomes visible in the UI. Code that generate
monthlylastday contract lines must now correctly set
the pre-paid/post-paid mode too. Some tests have had
to be adapted to reflect that.
- On Sale Order confirmation, a contract is created for each contract template used on sale order lines
- A not finished contract can be mentioned on sale order line
- A sale order line linked to a contract will update it and don't create a new one if it had the same template
