Bug: cost price on recurring invoice line is not reported from invoice template

[aschio]

Bug

I inserted cost price on single invoice line into invoice template. When I go to generate single invoice, cost price is 0.

Environment

• Version: Dolibarr 12.0.2
• OS: Debian
• Web server: Apache
• PHP: 7.4
• Database: mysql
• URL(s): compta/facture/facture.class.php

Steps to reproduce the behavior

• create template invoice and set cost price for at least one line
• create single invoice
• cost price is 0

Template invoice:

Invoice generated from template:

Solution:
in compta/facture/facture.class.php:

// fix core: 19.coop 
//$fk_product_fournisseur_price = empty($_facrec->lines[$i]->fk_product_fournisseur_price) ?null:$_facrec->lines[$i]->fk_product_fournisseur_price;
//$buyprice = empty($_facrec->lines[$i]->buyprice) ? 0 : $_facrec->lines[$i]->buyprice;
$fk_product_fournisseur_price = empty($_facrec->lines[$i]->fk_fournprice) ?null:$_facrec->lines[$i]->fk_fournprice;
$buyprice = empty($_facrec->lines[$i]->pa_ht) ? 0 : $_facrec->lines[$i]->pa_ht;
// end fix core: 19.coop 

buyprice --> pa_ht
fk_product_fournisseur_price --> fk_fournprice

[eldy]

Thanks @aschio I fixed a lot of other problem too. My fix is more complete.