[FIX] adyen_paybylink: fix the return of customers

Before this commit, customers might see a "transaction not found" page
when returning from Adyen Pay By Link Payment Page.

Now, they'll see a "waiting for payment" page if they returned before
the webhook notification or the confirmation of payment if they
returned after the webhook notification.

opw-3006401

closes odoo/odoo#103063

X-original-commit: 4fcf2600
Signed-off-by: Antoine Vandevenne (anv) <anv@odoo.com>
Signed-off-by: Valentin Chevalier <vcr@odoo.com>

addons/payment_adyen_paybylink/models/payment_transaction.py

@@ -2,7 +2,7 @@
 
 import logging
 
-from odoo import _, api, models
+from odoo import _, api, fields, models
 from odoo.exceptions import ValidationError
 
 
@@ -12,6 +12,18 @@ _logger = logging.getLogger(__name__)
 class PaymentTransaction(models.Model):
     _inherit = 'payment.transaction'
 
+    @api.model
+    def adyen_create(self, values):
+        """
+        When the customer lands on the `/payment/process` route, `/payment/process/poll` try to find
+        the transaction whose `date` field is between yesterday and now.
+
+        Since the `date` field is only set when the state of the transaction is changed, if the
+        customer comes back before the webhook, he will see a "transaction not found" page because
+        the value of the `date` field would be `False`.
+        """
+        return dict(date=fields.Datetime.now())
+
     # --------------------------------------------------
     # FORM RELATED METHODS
     # --------------------------------------------------