[REF] Account Banking SEPA Direct Debit: check SEPA ready

account_banking_sepa_direct_debit/models/__init__.py

@@ -6,3 +6,4 @@ from . import bank_payment_line
 from . import account_payment_mode
 from . import account_payment_method
 from . import account_payment_order
+from . import account_payment_line

account_banking_sepa_direct_debit/models/account_payment_line.py

@@ -0,0 +1,48 @@
+# Copyright 2019 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, models, _
+from odoo.exceptions import UserError
+
+
+class AccountPaymentLine(models.Model):
+    _inherit = 'account.payment.line'
+
+    @api.multi
+    def draft2open_payment_line_check(self):
+        res = super(AccountPaymentLine, self).draft2open_payment_line_check()
+        sepa_dd_lines = self.filtered(
+            lambda l: l.order_id.payment_method_id.code == 'sepa_direct_debit')
+        sepa_dd_lines._check_sepa_direct_debit_ready()
+        return res
+
+    @api.multi
+    def _check_sepa_direct_debit_ready(self):
+        """
+        This method checks whether the payment line(s) are ready to be used
+        in the SEPA Direct Debit file generation.
+        :raise: UserError if a line does not fulfils all requirements
+        """
+        for rec in self:
+            if not rec.mandate_id:
+                raise UserError(_(
+                    "Missing SEPA Direct Debit mandate on the line with "
+                    "partner {partner_name} (reference {reference}).").format(
+                    partner_name=rec.partner_id.name, reference=rec.name))
+            if rec.mandate_id.state != 'valid':
+                raise UserError(_(
+                    "The SEPA Direct Debit mandate with reference "
+                    "{mandate_ref} for partner {partner_name} has "
+                    "expired.").format(
+                    mandate_ref=rec.mandate_id.unique_mandate_reference,
+                    partner_name=rec.partner_id.name))
+            if rec.mandate_id.type == 'oneoff' and \
+                    rec.mandate_id.last_debit_date:
+                raise UserError(_(
+                    "The SEPA Direct Debit mandate with reference "
+                    "{mandate_ref} for partner {partner_name} has type set "
+                    "to 'One-Off' but has a last debit date set to "
+                    "{last_debit_date}. Therefore, it cannot be used.").format(
+                    mandate_ref=rec.mandate_id.unique_mandate_reference,
+                    partner_name=rec.partner_id.name,
+                    last_debit_date=rec.mandate_id.last_debit_date))

account_banking_sepa_direct_debit/models/account_payment_order.py

@@ -69,44 +69,22 @@ class AccountPaymentOrder(models.Model):
             transactions_count_a += 1
             priority = line.priority
             categ_purpose = line.category_purpose
-            # The field line.date is the requested payment date
-            # taking into account the 'date_prefered' setting
-            # cf account_banking_payment_export/models/account_payment.py
-            # in the inherit of action_open()
-            if not line.mandate_id:
-                raise UserError(
-                    _("Missing SEPA Direct Debit mandate on the "
-                      "bank payment line with partner '%s' "
-                      "(reference '%s').")
-                    % (line.partner_id.name, line.name))
             scheme = line.mandate_id.scheme
-            if line.mandate_id.state != 'valid':
-                raise Warning(
-                    _("The SEPA Direct Debit mandate with reference '%s' "
-                      "for partner '%s' has expired.")
-                    % (line.mandate_id.unique_mandate_reference,
-                       line.mandate_id.partner_id.name))
             if line.mandate_id.type == 'oneoff':
                 seq_type = 'OOFF'
-                if line.mandate_id.last_debit_date:
-                    raise Warning(
-                        _("The mandate with reference '%s' for partner "
-                          "'%s' has type set to 'One-Off' and it has a "
-                          "last debit date set to '%s', so we can't use "
-                          "it.")
-                        % (line.mandate_id.unique_mandate_reference,
-                           line.mandate_id.partner_id.name,
-                           line.mandate_id.last_debit_date))
             elif line.mandate_id.type == 'recurrent':
                 seq_type_map = {
                     'recurring': 'RCUR',
                     'first': 'FRST',
                     'final': 'FNAL',
                 }
-                seq_type_label = \
-                    line.mandate_id.recurrent_sequence_type
+                seq_type_label = line.mandate_id.recurrent_sequence_type
                 assert seq_type_label is not False
                 seq_type = seq_type_map[seq_type_label]
+            # The field line.date is the requested payment date
+            # taking into account the 'date_preferred' setting
+            # cf account_banking_payment_export/models/account_payment.py
+            # in the inherit of action_open()
             key = (line.date, priority, categ_purpose, seq_type, scheme)
             if key in lines_per_group:
                 lines_per_group[key].append(line)