Bug fixed AvailableInvoice

sismiop/services/base.py

@@ -374,15 +374,7 @@ class AvailableInvoice(Query):
     def show(self):
         Invoice = self.get_invoice_model()
         Payment = self.get_payment_model()
-        base_inq_cls = self.get_inquiry_class()
-
-        class Inq(base_inq_cls):
-            def get_invoice_model(self):
-                return Invoice
-
-            def get_payment_model(self):
-                return Payment
-
+        inq_cls = self.get_inquiry_class()
         offset = -1
         no = 0
         awal = time()
@@ -397,7 +389,7 @@ class AvailableInvoice(Query):
             inv = q.first()
             if not inv:
                 continue
-            inq = Inq(invoice=inv)
+            inq = inq_cls(invoice=inv)
             if inq.is_paid():
                 continue
             no += 1