bug 修复

website/handlers/enterprise_device/handler.py

@@ -88,7 +88,18 @@ class DeviceClassificationHandler(APIHandler):
         with self.app_mysql.connect() as conn:
             cur = conn.execute(
                 text(
-                    "SELECT id, suid, name FROM device_classification where del=0 ORDER BY id DESC"
+                    """
+                    SELECT id, suid, name,
+                    CASE 
+                        WHEN EXISTS (
+                            SELECT 1
+                            FROM enterprise_device
+                            WHERE classification = device_classification.suid
+                        ) THEN '1'
+                        ELSE '0'
+                    END AS used
+                    FROM device_classification where del=0 ORDER BY id DESC
+                    """
                 )
             )
             res = db_mysql.to_json_list(cur)