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django中瀑布流写法实例代码

yipeiwu_com5年前 (2020-03-06)Python基础

django中瀑布流初探

img.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <style>
    .w{
      width: 1000px;
      margin: 0 auto;
    }
    .item{
      width: 25%;
      float: left;
    }
    .item img{
      width: 100%;
    }
  </style>
</head>
<body>
  <div>姑娘们</div>
  <div class="w" id="container">
 
    <div class="item">11
    </div>
    <div class="item">22
 
    </div>
    <div class="item">33
 
    </div>
    <div class="item">44
 
    </div>
  </div>
  <script src="/static/jquery-1.12.4.js"></script>
  <script>
    $(function () {
      initImg();
    });
    NID = 0;
    function initImg() {
      $.ajax({
        url: '/get_imgs.html',
        type: 'GET',
        data:{nid:NID},
        dataType: 'JSON',
        success:function (arg) {
          var img_list = arg.data;
          $.each(img_list,function (index,v) {
{#    index,v，index是指的索引，v是指的内容        #}
            var eqv = index % 4;
            var tag = document.createElement('img');
            tag.src = '/'+ v.src;
            $('#container').children().eq(eqv).append(tag);
            //这里的eq是获取children里面的内容
          })
 
        }
        
      })
    }
  </script>
</body>
</html>

views

def imgs(request):
  # img_list = models.Img.objects.all()
  return render(request,'img.html')

def get_imgs(request):
  nid = request.GET.get('nid')
  img_list = models.Img.objects.filter(id__gt=nid).values('id','src','title')
  img_list = list(img_list)
  ret = {
    'status': True,
    'data': img_list
  }
  # return HttpResponse(json.dumps(ret))
  return JsonResponse(ret)
  # return JsonResponse([11,22,33],safe=False)

models

class Img(models.Model):

  src = models.FileField(max_length=32,verbose_name='图片路径',upload_to='static/upload')
  title = models.CharField(max_length=16,verbose_name='标题')
  summary = models.CharField(max_length=128,verbose_name='简介')

  class Meta:
    verbose_name_plural = '图片'
  def __str__(self):
    return self.title