From b4a46bebef0b89fb5e41ce312d123bff6d790515 Mon Sep 17 00:00:00 2001
From: Simon Gonzalez <simon.gonzalez@bluewin.ch>
Date: Fri, 17 Feb 2023 08:22:13 +0100
Subject: [PATCH] [IMP] account_payment_order: Concatenate all UserError
 messages Gather all the errors to only show one with all the problem on the
 current debit order. This will avoid for the users to have to make multiple
 time the same process.

---
 .../models/account_payment_order.py           | 29 +++++++++++++------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/account_payment_order/models/account_payment_order.py b/account_payment_order/models/account_payment_order.py
index 341acbe3e..76330fa92 100644
--- a/account_payment_order/models/account_payment_order.py
+++ b/account_payment_order/models/account_payment_order.py
@@ -292,9 +292,13 @@ class AccountPaymentOrder(models.Model):
             order.payment_ids.action_cancel()
             order.payment_ids.unlink()
             # Prepare account payments from the payment lines
+            payline_err_text = []
             group_paylines = {}  # key = hashcode
             for payline in order.payment_line_ids:
-                payline.draft2open_payment_line_check()
+                try:
+                    payline.draft2open_payment_line_check()
+                except UserError as e:
+                    payline_err_text.append(e.args[0])
                 # Compute requested payment date
                 if order.date_prefered == "due":
                     requested_date = payline.ml_maturity_date or payline.date or today
@@ -303,8 +307,7 @@ class AccountPaymentOrder(models.Model):
                 else:
                     requested_date = today
                 # No payment date in the past
-                if requested_date < today:
-                    requested_date = today
+                requested_date = max(today, requested_date)
                 # inbound: check option no_debit_before_maturity
                 if (
                     order.payment_type == "inbound"
@@ -312,7 +315,7 @@ class AccountPaymentOrder(models.Model):
                     and payline.ml_maturity_date
                     and requested_date < payline.ml_maturity_date
                 ):
-                    raise UserError(
+                    payline_err_text.append(
                         _(
                             "The payment mode '%(pmode)s' has the option "
                             "'Disallow Debit Before Maturity Date'. The "
@@ -332,11 +335,11 @@ class AccountPaymentOrder(models.Model):
                 with self.env.norecompute():
                     payline.date = requested_date
                 # Group options
-                if order.payment_mode_id.group_lines:
-                    hashcode = payline.payment_line_hashcode()
-                else:
-                    # Use line ID as hascode, which actually means no grouping
-                    hashcode = payline.id
+                hashcode = (
+                    payline.payment_line_hashcode()
+                    if order.payment_mode_id.group_lines
+                    else payline.id
+                )
                 if hashcode in group_paylines:
                     group_paylines[hashcode]["paylines"] += payline
                     group_paylines[hashcode]["total"] += payline.amount_currency
@@ -345,7 +348,15 @@ class AccountPaymentOrder(models.Model):
                         "paylines": payline,
                         "total": payline.amount_currency,
                     }
+            # Raise errors that happened on the validation process
+            if payline_err_text:
+                raise UserError(
+                    _("There's at least one validation error:\n")
+                    + "\n".join(payline_err_text)
+                )
+
             order.env.flush_all()
+
             # Create account payments
             payment_vals = []
             for paydict in list(group_paylines.values()):