插座增加负载时长字段

Model/models.py

@@ -3388,6 +3388,7 @@ class SocketPowerStatistics(models.Model):
     watt = models.DecimalField(default=0, max_digits=10, decimal_places=2,  verbose_name='电量瓦')
     power = models.DecimalField(default=0, max_digits=10, decimal_places=2, verbose_name='功率w')
     accumulated_time = models.SmallIntegerField(default=0, verbose_name='当天累计时长（分）')
+    load_time = models.SmallIntegerField(default=0, verbose_name='当天负载累计时长（分）')
     created_time = models.IntegerField(default=0, verbose_name='创建时间')
     updated_time = models.IntegerField(default=0, verbose_name='创建时间')