基于Django Class的Listview,带有两个经过筛选的单个列表

时间:2018-06-01 05:12:34

标签: django class django-queryset

您好我正在尝试创建一个使用模型的页面,其中包含一个名为 data_type 的模型字段,其整数选项选择为1或2.我目前有一个Listview页面,我试图创建两个列表,一个显示data_type = 1的项目,另一个显示data_type = 2。

1代表模型,2代表脚本,如果有帮助吗?

这是我的views.py

class ItemListView(generic.ListView):


    context_object_name = 'model_list'
    queryset = Item.objects.filter(data_type='1')

    context_object_name = 'script_list'
    queryset = Item.objects.filter(data_type='2')

    template_name = 'item_list.html',

Item_list.html

<h3 class="text-muted text-center mt-4">Models</h3>
<hr>
<div class="container">
  <div class="row mt-4">
  {% if model_list %}
    {% for item in model_list %}
  <div class="col-md-3">
    <div class="card card-primary card-effects p-2 mb-3 mt-4">
      <a href="{% url 'portal:item_detail' item.pk %}" class="card-full-link">
      <img class="card-img" src="{{ item.image.url }}" alt="Generic placeholder image" width="225" height="185">
      <div class="card-body">
        <p class="text-muted"> {{ item.get_data_type_display }}</p>
        <h4 class="text-left"> {{ item.name }}<span class="text-blue">Ξ{{ item.price }}</span></h4>
      </div>
      </a>
      <!-- <p><a class="btn btn-success" href="#" role="button">Learn more &raquo;</a></p> !-->
    </div>
  </div>
          {% endfor %}
    {% else %}
      <p>There are no items in the database.</p>
    {% endif %}


  </div>
</div>

<h3 class="text-muted text-center mt-4">Scripts </h3>
<hr>
<div class="container">
  <div class="row mt-4">
  {% if script_list %}
    {% for item in script_list %}
  <div class="col-md-3">
    <div class="card card-primary card-effects p-2 mb-3 mt-4">
      <a href="{% url 'portal:item_detail' item.pk %}" class="card-full-link">
      <img class="card-img" src="{{ item.image.url }}" alt="Generic placeholder image" width="225" height="185">
      <div class="card-body">
        <p class="text-muted"> {{ item.get_data_type_display }}</p>
        <h4 class="text-center"> {{ item.name }}<span class="text-blue">Ξ{{ item.price }}</span></h4>
      </div>
      </a>
      <!-- <p><a class="btn btn-success" href="#" role="button">Learn more &raquo;</a></p> !-->
    </div>
  </div>
          {% endfor %}
    {% else %}
      <p>There are no items in the database.</p>
    {% endif %}


  </div>
</div>

希望views.py会让你知道我想要做什么。看来我不能有两个context_object_name和querysets。如果我删除了vottom context_object_name和queryset,则将加载model_list。

我从django docs https://docs.djangoproject.com/en/2.0/topics/class-based-views/generic-display/获得了context_object_name查询集的想法

1 个答案:

答案 0 :(得分:1)

您可以覆盖get_context_data方法:

class ItemListView(generic.ListView):

    context_object_name = 'model_list'
    queryset = Item.objects.filter(data_type='1')

    template_name = 'item_list.html'

    def get_context_data(self, **kwargs):
        context = super(ItemListView, self).get_context_data(**kwargs)
        context['script_list'] = Item.objects.filter(data_type='2')
        return context