「Django」浏览+1的操作

适应于网页、文章等浏览次数统计

1、Models设置：添加viewed方法

class NewsTitle(models.Model):
    title = models.CharField(max_length=64,verbose_name='新闻标题')
    count = models.PositiveIntegerField(verbose_name='点击次数',default=0)
    src = models.ImageField(upload_to='www/',verbose_name='新闻图片')
    is_del = models.BooleanField(verbose_name='删除', default=False)
    time = models.DateTimeField(auto_now=True)

    class Meta:
        verbose_name = '新闻标题'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.title

    def viewed(self):
        self.count += 1
        self.save(update_fields=['count'])

2、views设置：查询成功后调用viewed方法

    def retrieve(self,request,*args,**kwargs):
        ret = {'code': 1000, 'data': None}
        pk = kwargs.get('pk')
        try:
            obj = models.NewsTitle.objects.filter(id=pk,is_del=False)
            obj.first().viewed()
            ser = sel.GetNewsInfoSerializers(instance=obj, many=True)
            ret['data'] = ser.data
        except Exception as e:
            ret['code'] = 1002
            ret['err'] = e
        return Response(ret)