[MIG] account_invoice_fixed_discount: Migration to 16.0

account_invoice_fixed_discount/__manifest__.py

@@ -4,7 +4,7 @@
 {
     "name": "Account Fixed Discount",
     "summary": "Allows to apply fixed amount discounts in invoices.",
-    "version": "15.0.1.0.0",
+    "version": "16.0.1.0.0",
     "category": "Accounting & Finance",
     "website": "https://github.com/OCA/account-invoicing",
     "author": "ForgeFlow, Odoo Community Association (OCA)",

account_invoice_fixed_discount/models/__init__.py

@@ -1,3 +1,3 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
 
-from . import account_move
+from . import account_move_line

account_invoice_fixed_discount/models/account_move_line.py

@@ -0,0 +1,55 @@
+# Copyright 2017 ForgeFlow S.L.
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
+
+from odoo import api, fields, models
+
+
+class AccountMove(models.Model):
+    _inherit = "account.move"
+
+    def _recompute_tax_lines(
+        self, recompute_tax_base_amount=False, tax_rep_lines_to_recompute=None
+    ):
+        vals = {}
+        for line in self.invoice_line_ids.filtered("discount_fixed"):
+            vals[line] = {"price_unit": line.price_unit}
+            price_unit = line.price_unit - line.discount_fixed
+            line.update({"price_unit": price_unit})
+        res = super(AccountMove, self)._recompute_tax_lines(
+            recompute_tax_base_amount=recompute_tax_base_amount,
+            tax_rep_lines_to_recompute=tax_rep_lines_to_recompute,
+        )
+        for line in vals.keys():
+            line.update(vals[line])
+        return res
+
+
+class AccountMoveLine(models.Model):
+    _inherit = "account.move.line"
+
+    discount_fixed = fields.Float(
+        string="Discount (Fixed)",
+        digits="Product Price",
+        default=0.00,
+        help="Fixed amount discount.",
+    )
+
+    @api.onchange("discount_fixed")
+    def _onchange_discount_fixed(self):
+        """When the discount fixed is changed, we set the ``discount`` on the line to the
+        appropriate value and apply the default downstream implementation.
+
+        When the display_type is not ``'product'`` we reset the discount_fixed to 0.0.
+
+        """
+        if self.display_type != "product":
+            self.discount_fixed = 0.0
+            return
+
+        if self.discount_fixed:
+            self.discount = self.discount_fixed / self.price_unit * 100.0
+
+    @api.onchange("discount")
+    def _onchange_discount(self):
+        """Reset the ``discount_fixed`` when ``discount`` is changed."""
+        self.discount_fixed = 0.0

account_invoice_fixed_discount/tests/test_account_fixed_discount.py

@@ -2,30 +2,21 @@
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl)
 
 from odoo.exceptions import ValidationError
-from odoo.tests import TransactionCase
+from odoo.tests import SavepointCase
 
 
-class TestInvoiceFixedDiscount(TransactionCase):
+class TestInvoiceFixedDiscount(SavepointCase):
     @classmethod
     def setUpClass(cls):
         super(TestInvoiceFixedDiscount, cls).setUpClass()
         cls.partner = cls.env["res.partner"].create({"name": "Test"})
         cls.product = cls.env.ref("product.product_product_3")
         cls.account = cls.env["account.account"].search(
-            [
-                (
-                    "user_type_id",
-                    "=",
-                    cls.env.ref("account.data_account_type_revenue").id,
-                )
-            ],
+            [("account_type", "=", "income")],
             limit=1,
         )
-        type_current_liability = cls.env.ref(
-            "account.data_account_type_current_liabilities"
-        )
         cls.output_vat_acct = cls.env["account.account"].create(
-            {"name": "10", "code": "10", "user_type_id": type_current_liability.id}
+            {"name": "10", "code": "10", "account_type": "liability_current"}
         )
         cls.tax_group_vat = cls.env["account.tax.group"].create({"name": "VAT"})
         cls.vat = cls.env["account.tax"].create(

account_invoice_fixed_discount/views/account_move_view.xml

@@ -22,12 +22,6 @@
             >
                 <field name="discount_fixed" groups="base.group_no_one" />
             </xpath>
-            <xpath
-                expr="//field[@name='line_ids']/tree/field[@name='discount']"
-                position="before"
-            >
-                <field name="discount_fixed" invisible="1" />
-            </xpath>
         </field>
     </record>
 </odoo>