diff --git a/yuthon_maintain/models/processing_order_approval.py b/yuthon_maintain/models/processing_order_approval.py
index 0cae16270..c9769981c 100644
--- a/yuthon_maintain/models/processing_order_approval.py
+++ b/yuthon_maintain/models/processing_order_approval.py
@@ -70,11 +70,15 @@ class ProcessingOrderApproval(models.Model):
 
     @api.depends('property_id')
     def _compute_contract_id(self):
-        if self.property_id:
-            contract_id = self.env["property.lease.contract.line"].search([('address_id', '=', self.property_id.id)], limit=1)
-        else:
-            contract_id = False
-        self.contract_id = contract_id.lease_id.id
+        for record in self:
+            if record.property_id:
+                contract_id = self.env["property.lease.contract.line"].search(
+                    [('address_id', '=', record.property_id.id)],
+                    limit=1
+                )
+            else:
+                contract_id = False
+            record.contract_id = contract_id.lease_id.id if contract_id else False
 
     @api.depends("company_id")
     def _compute_name(self):