[12.0][ADD] account_document_reversal

account_document_reversal/models/account_bank_statement.py

@@ -0,0 +1,65 @@
+# 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 UserError
+
+
+class AccountPayment(models.Model):
+    _name = 'account.bank.statement.line'
+    _inherit = ['account.bank.statement.line', 'account.document.reversal']
+
+    @api.multi
+    def button_cancel_reconciliation(self):
+        """ If cancel method is to reverse, use document reversal wizard """
+        cancel_reversal = all(self.mapped('journal_entry_ids.move_id.'
+                                          'journal_id.is_cancel_reversal'))
+        states = self.mapped('statement_id.state')
+        if cancel_reversal:
+            if not all(st == 'open' for st in states):
+                raise UserError(
+                    _('Only new bank statement can be cancelled'))
+            return self.reverse_document_wizard()
+        return super().button_cancel_reconciliation()
+
+    @api.multi
+    def action_document_reversal(self, date=None, journal_id=None):
+        """ Reverse all moves related to this statement + delete payment """
+        # This part is from button_cancel_reconciliation()
+        aml_to_unbind = self.env['account.move.line']
+        aml_to_cancel = self.env['account.move.line']
+        payment_to_unreconcile = self.env['account.payment']
+        payment_to_cancel = self.env['account.payment']
+        for st_line in self:
+            aml_to_unbind |= st_line.journal_entry_ids
+            for line in st_line.journal_entry_ids:
+                payment_to_unreconcile |= line.payment_id
+                if st_line.move_name and \
+                        line.payment_id.payment_reference == st_line.move_name:
+                    # there can be several moves linked to a statement line but
+                    # maximum one created by the line itself
+                    aml_to_cancel |= line
+                    payment_to_cancel |= line.payment_id
+        aml_to_unbind = aml_to_unbind - aml_to_cancel
+        if aml_to_unbind:
+            aml_to_unbind.write({'statement_line_id': False})
+        payment_to_unreconcile = payment_to_unreconcile - payment_to_cancel
+        if payment_to_unreconcile:
+            payment_to_unreconcile.unreconcile()
+        # --
+
+        # Set all moves to unreconciled
+        aml_to_cancel.filtered(lambda x:
+                               x.account_id.reconcile).remove_move_reconcile()
+        moves = aml_to_cancel.mapped('move_id')
+        # Important to remove relation with move.line before reverse
+        aml_to_cancel.write({'payment_id': False,
+                             'statement_id': False,
+                             'statement_line_id': False})
+        # Create reverse entries
+        moves.reverse_moves(date, journal_id)
+        # Delete related payments
+        if payment_to_cancel:
+            payment_to_cancel.unlink()
+        # Unlink from statement line
+        self.write({'move_name': False})
+        return True