iot_deviceInfo表加添加时间和更新时间字段

Model/models.py

@@ -1606,11 +1606,14 @@ class iotdeviceInfoModel(models.Model):
     thing_name = models.CharField(blank=True, max_length=256, default='', verbose_name=u'IoT Thing Name')
     thing_groups = models.CharField(blank=True, max_length=256, default='', verbose_name=u'IoT Thing Groups')
     endpoint = models.CharField(blank=True, max_length=256, db_index=True, default='', verbose_name=u'iot端点')
-    token_iot_number = models.CharField(blank=True,  db_index=True ,default='', max_length=50, verbose_name='连接iot令牌')
+    token_iot_number = models.CharField(blank=True,  db_index=True, default='', max_length=50, verbose_name='连接iot令牌')
+    add_time = models.DateTimeField(blank=True, auto_now_add=True, verbose_name=u'添加时间')
+    update_time = models.DateTimeField(blank=True, auto_now=True, verbose_name=u'更新时间')
     class Meta:
         db_table = 'iot_deviceInfo'
         verbose_name = 'iot设备信息表'
         verbose_name_plural = verbose_name
+        ordering = ('-add_time',)
 
 
 class UIDMainUser(models.Model):