Cancelación con substitución

cambios para la cancelación y substitucion de facturas y pagos

@OpenPymeMx

#116 (closed)

l10n_mx_ir_attachment_facturae/models/base_cfdi_mixin.py

     related_cfdi_ids = fields.Many2many(
         "ir.attachment.facturae.mx",
         "cfdis_related_rel",
-        "related_cfdi_id",
-        "original_cfdi_id",
         "Refund invoices",
+        compute="_compute_related_cfdi_ids",
         readonly=True,
         copy=False,
         help="Original CFDI to which this CFDI is referred to",
     )
 
+    @api.multi
+    def _compute_related_cfdi_ids(self):
+        for record in self:
+            cfdi_related = self.env["cfdi.related"].search(
+                [
+                    ("related_cfdi_id", "=", record.id),
+                    ("type_attachment", "=", self._name),
+                ]
+            )
+            self.update({"related_cfdi_ids": cfdi_related.original_cfdi_id})
+
     @api.one
     def create_cfdi(self):
         """Creates a new cfdi object related with current record"""
         """Consult the status cancel of the cfdi related"""
         if self.cfdi_id and self.cfdi_id.state in ["waiting", "cancel"]:
             return self.cfdi_id.action_consult_cancellation_status()
+
+    @api.multi
+    def _cancel_cfdi(self):
+        """General steps needed for cancel a voucher"""
+        # self._origin_cfdi_search()
+        self.ensure_one()
+        # Before cancel original voucher set relation to current related CFDI
+        self.write(
+            {"cfdi_relation_type": self.env.ref("l10n_mx.cfdi_relation_type_04").id}
+        )
+        self.env["cfdi.related"].search(
+            [("related_cfdi_id", "=", self.id), ("type_attachment", "=", self._name)]
+        ).unlink()
+        self.env["cfdi.related"].create(
+            {
+                "related_cfdi_id": self.id,
+                "original_cfdi_id": self.cfdi_id.id,
+                "type_attachment": self._name,
+            }
+        )
+        # We also remove relation for attachments to avoid confusing situations
+        self.cfdi_id.file_xml_sign.res_id = None
+        if self.cfdi_id.file_pdf:
+            self.cfdi_id.file_pdf.res_id = None
+        self.cancel_voucher()