Bug fixed total bayar perlu ditambah discount

sismiop/services/base.py

@@ -240,13 +240,16 @@ class Inquiry(Query):
                     func.sum(Payment.jml_sppt_yg_dibayar).
                     label('jml_sppt_yg_dibayar'),
                     func.sum(Payment.denda_sppt).
-                    label('denda_sppt'))
+                    label('denda_sppt'),
+                    func.sum(Payment.discount).
+                    label('discount'))
         q = self.get_filter(q)
         bayar = q.first()
         self.total_bayar = bayar.jml_sppt_yg_dibayar or 0
         denda_lalu = bayar.denda_sppt or 0
+        discount_lalu = float(bayar.discount or 0)
         sisa = float(self.total_bayar - denda_lalu)
-        tagihan = self.invoice.pbb_yg_harus_dibayar_sppt - sisa
+        tagihan = self.invoice.pbb_yg_harus_dibayar_sppt - sisa - discount_lalu
         if tagihan < 0:
             self.tagihan = 0
         else: