[IMP] account: add price total measure to invoice report

This feature isn't available as of now, and users that wants to do
this would have to use the similar report in Sale as a workaround.
As this is not always possible nor great, introduce this new measure
to display the line total tax included.

task id #2831312

closes odoo/odoo#89654

Signed-off-by: Florian Gilbert <flg@odoo.com>

addons/account/report/account_invoice_report.py

@@ -49,6 +49,7 @@ class AccountInvoiceReport(models.Model):
     account_id = fields.Many2one('account.account', string='Revenue/Expense Account', readonly=True, domain=[('deprecated', '=', False)])
     analytic_account_id = fields.Many2one('account.analytic.account', string='Analytic Account', groups="analytic.group_analytic_accounting")
     price_subtotal = fields.Float(string='Untaxed Total', readonly=True)
+    price_total = fields.Float(string='Total', readonly=True)
     price_average = fields.Float(string='Average Price', readonly=True, group_operator="avg")
 
     _depends = {
@@ -57,7 +58,7 @@ class AccountInvoiceReport(models.Model):
             'invoice_date', 'invoice_date_due', 'invoice_payment_term_id', 'partner_bank_id',
         ],
         'account.move.line': [
-            'quantity', 'price_subtotal', 'amount_residual', 'balance', 'amount_currency',
+            'quantity', 'price_subtotal', 'price_total', 'amount_residual', 'balance', 'amount_currency',
             'move_id', 'product_id', 'product_uom_id', 'account_id', 'analytic_account_id',
             'journal_id', 'company_id', 'currency_id', 'partner_id',
         ],
@@ -98,6 +99,7 @@ class AccountInvoiceReport(models.Model):
                 line.quantity / NULLIF(COALESCE(uom_line.factor, 1) / COALESCE(uom_template.factor, 1), 0.0) * (CASE WHEN move.move_type IN ('in_invoice','out_refund','in_receipt') THEN -1 ELSE 1 END)
                                                                             AS quantity,
                 -line.balance * currency_table.rate                         AS price_subtotal,
+                line.price_total,
                 -COALESCE(
                    -- Average line price
                    (line.balance / NULLIF(line.quantity, 0.0)) * (CASE WHEN move.move_type IN ('in_invoice','out_refund','in_receipt') THEN -1 ELSE 1 END)

addons/account/report/account_invoice_report_view.xml

@@ -42,6 +42,7 @@
                 <field name="price_average" optional="hide" sum="Total"/>
                 <field name="quantity" optional="hide" sum="Total"/>
                 <field name="price_subtotal" optional="show" sum="Total"/>
+                <field name="price_total" optional="show" sum="Total"/>
                 <field name="state" optional="hide"/>
                 <field name="payment_state" optional="hide"/>
                 <field name="move_type" optional="hide"/>