django使用bulk_update批量更新数据

一、第一步，导入bulk_update包
from bulk_update.helper import bulk_update
二、写一个类

class WestMedicineSkuQuerySet(models.QuerySet):
    def latest_records(self):
        return self.filter(is_deleted=False)

    def bulk_update(self, objs, update_fields=None,
                    exclude_fields=None, batch_size=None):
        self._for_write = True
        using = self.db

        return bulk_update(
            objs, update_fields=update_fields,
            exclude_fields=exclude_fields, using=using,
            batch_size=batch_size)

　　

三、第三步，在需要使用批量更新的model类中，添加一行代码

class Track(models.Model):
    album = models.ForeignKey(Album, related_name='tracks', on_delete=models.CASCADE)
    order = models.IntegerField()
    title = models.CharField(max_length=100)
    duration = models.IntegerField()
     objects = WestMedicineSkuQuerySet.as_manager()

    
    class Meta:
        unique_together = ('album', 'order')
        ordering = ['order']