修复单价，重量为空的bug

SC-boot/linkage-scm/src/main/resources/mapper/purchaseorder/PurchaseorderMapper.xml

@@ -99,7 +99,7 @@
                                 3 ELSE 13
                             END
                         ) AS `rate`,
-                    ROUND(ROUND( SUM(d.amount), 2 )/ROUND( SUM( CASE b.unit WHEN 0 THEN b.settlement ELSE b.settlement/1000 END  ), 2 ), 4 ) AS `price`,
+                    ROUND(IFNULL( SUM(d.amount)/SUM( CASE b.unit WHEN 0 THEN b.settlement ELSE b.settlement/1000 END  ),0), 4 ) AS `price`,
                     ROUND( SUM( CASE b.unit WHEN 0 THEN b.settlement ELSE b.settlement/1000 END  ), 2 ) AS `settlement`,
                     ( CASE b.unit WHEN 0 THEN '吨' ELSE '千克' END ) AS `unit`,
                     ROUND( a.amount, 2 ) `amount`