[13.0][MIG] account_document_reversal

account_document_reversal/models/account_payment.py

@@ -1,38 +1,37 @@
 # Copyright 2019 Ecosoft Co., Ltd (http://ecosoft.co.th/)
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html)
-from odoo import _, api, models
-from odoo.exceptions import ValidationError
+from odoo import _, api, models, fields
+from odoo.exceptions import UserError
 
 
 class AccountPayment(models.Model):
     _name = "account.payment"
     _inherit = ["account.payment", "account.document.reversal"]
 
-    @api.multi
-    def cancel(self):
-        """ If cancel method is to reverse, use document reversal wizard """
-        cancel_reversal = all(
-            self.mapped("move_line_ids.move_id.journal_id.is_cancel_reversal")
-        )
-        states = self.mapped("state")
-        if cancel_reversal and "draft" not in states:
-            return self.reverse_document_wizard()
-        return super().cancel()
+    def cancel_reversal(self):
+        return self.reverse_document_wizard()
+
+    def action_draft(self):
+        """ Case cancel reversal, set to draft allowed only when no moves """
+        for rec in self:
+            if rec.is_cancel_reversal and rec.move_line_ids:
+                raise UserError(_("Cannot set to draft!"))
+        return super().action_draft()
 
-    @api.multi
     def action_document_reversal(self, date=None, journal_id=None):
         """ Reverse all moves related to this payment + set state to cancel """
-        # Check document state
-        if "cancelled" in self.mapped("state"):
-            raise ValidationError(_("You are trying to cancel the cancelled document"))
-        move_lines = self.mapped("move_line_ids")
+        # Check document readiness
+        valid_state = len(self.mapped("state")) == 1 and \
+            list(set(self.mapped("state")))[0] == "posted"
+        if not valid_state:
+            raise UserError(
+                _("Only validated document can be cancelled (reversal)"))
+        # Find moves to get reversed
+        move_lines = self.mapped("move_line_ids").filtered(
+            lambda x: x.journal_id == self.mapped("journal_id")[0])
         moves = move_lines.mapped("move_id")
-        # Set all moves to unreconciled
-        move_lines.filtered(lambda x: x.account_id.reconcile).remove_move_reconcile()
-        # Important to remove relation with move.line before reverse
-        move_lines.write({"payment_id": False})
         # Create reverse entries
-        moves.reverse_moves(date, journal_id)
+        moves._cancel_reversal(journal_id)
         # Set state cancelled and unlink with account.move
-        self.write({"move_name": False, "state": "cancelled"})
+        self.write({"state": "cancelled"})
         return True