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Hi guys,

I've extended the ability to automatically generate invoices from contracts. In the contracts page I've added the ability to add cars to contracts and on this car you can set a tax. See an example image here.

The cars field is a many2one to fleet.vehicle and inside this many2one I have a many2many relation to account.tax.
Python code:

_columns = {
   'car_id': fields.many2one('fleet.vehicle', 'Cars'), 
   'car_line_tax_id': fields.many2many('account.tax', 'account_car_line_tax', 'car_line_id', 'tax_id', string='BTW')

I now add a car to the car_id many2one and fill in a tax (for example: VAT-OUT-21-SERVICES). I then run the automatic planner which triggers a Python method that generates concept invoices from the contracts:

def _prepare_invoice_lines(self, cr, uid, contract, fiscal_position_id, context=None):
    //Lots of irrelevant code.
    //Loop over all cars that are added to the car_id list.
    for line in contract.recurring_invoice_car_line_ids: 
        //Add every car to the invoices_lines
        invoice_lines.append((0, 0, { 
            //Fill up the fields
            'quantity': line.car_number_of_units or 0.0,
            'price_unit': line.car_rent_price or 0.0, 
            //This line isn't working well. I know the filled in tax is in car_line_tax_id but it doesn't get filled in on the invoice.
'invoice_line_tax_id': line.car_line_tax_id,

So everything works fine except 'invoice_line_tax_id': line.car_line_tax_id. For some reason the tax doesn't get filled in in account.invoice.form on the field invoice_lines_tax_id. You can see an example here from both screens.

Why is this? Did I do something wrong or?

Thanks,
Yenthe



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Buang
Jawaban Terbai

Try adding in such a way:

'invoice_line_tax_id': [(6, 0, [x.id for x in line.car_line_tax_id)], 
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Buang
Penulis

Works perfect! So why do you have to loop over them? Why can't I simply call the id? Because it can contain multiple values? Accepted & upvoted, thanks Zbik!

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