add wristband sort

route/api/wristband.js

@@ -127,7 +127,7 @@ router
     })
     .post('/getstatus', (req, res, n) => {
 
-        let query = "select w.`name`, l.`name` as locname, l2.`name` as last_locname, ll.*\
+        let query = "select w.`name`, coalesce(l.`name`, l2.`name`) as locname, ll.*\
             from ??.?? w\
             left join ( \
                 select * from ( \
@@ -141,7 +141,7 @@ router
             left join ??.?? l \
             on \
             l.`serialnumber` = tmp2.`devid` \
-            left join ??.?? l2 \
+            left join ??.?? l2\
             on \
             l2.`serialnumber` = ll.`devid` \
             ";
@@ -169,6 +169,9 @@ router
             case 'val11':
                 query += `order by ll.${sortfield} ${sortorder}`;
                 break;
+            case 'loc':
+                query += `order by locname ${sortorder}`;
+                break;
             default:
                 query += 'order by w.`uid`';
                 break;