Hi there
I am trying to create an invoice that is related to the sale order.

I tried in two ways, every time the code is executed without errors, but without the relationship.

The first way is to add an invoice to the sale order direct:
id_sale_order = CreateRecordsXml(
'sale.order', "[ {'partner_id' : 29754 ,'order_line':[(0,0, {'product_id':91644,'name':'test','product_uom_qty':1,'price_unit':30})],'invoice_ids': [(0, 0, {'partner_id' :29754,'move_type': 'out_invoice','invoice_line_ids':[(0,0, {'product_id':91644,'name':'test','quantity':1,'price_unit':30})]})]}]")
===
The second way is to create an invoice then add its id to the sale order :
id_inv = CreateRecordsXml(
'account.move', "[{'partner_id' :39953,'move_type': 'out_invoice','invoice_line_ids':[(0,0, {'product_id':91644,'name':'test','quantity':1,'price_unit':30})]}]")

id_sale_order = CreateRecordsXml(
'sale.order', "[ {'partner_id' : 29754 ,'order_line':[(0,0, {'product_id':91644,'name':'test','product_uom_qty':1,'price_unit':30})],'invoice_ids': [(6, False, "+str(id_inv)+")]}]")
can any one help me?