Question

我正在尝试使用类似于Django Admin中的过滤器功能实现ListView。我查看了django-filter，但不清楚如何在模板上使用它。

这是我的ListView：

@method_decorator(login_required, name='dispatch')
class ListProjects(ListView):    
    model = Project
    paginate_by = 100
    list_filter=('start_dt','end_dt','status')

在这种情况下，我想按这三个字段进行过滤。

Answer 1

Django管理过滤器通过根据根据所选过滤器传递的GET参数过滤查询集来工作。话虽如此，您可以通过覆盖get_queryset的{{1}}方法并执行类似的操作来轻松实现相同的目的：

ListView

现在，您可以在模板中使用def get_queryset(self): qs = super().get_queryset() get_params = self.request.GET.dict() # search if get_params.get('q') and hasattr(self, 'search_fields'): # logic for search goes here.... # filter if hasattr(self, 'list_filter'): filter_fields = self.list_filter for key, value in get_params.items(): if key in filter_fields and key != 'q' and value != '': qs = qs.filter(**{key:value}) return qs标签来呈现过滤器的选择，就像在admin中一样。使用此方法时，请确保保留获取参数。

希望这会有所帮助。

Answer 2

因此，我在自定义视图和管理员之间进行了混合。这是最终的解决方案：

 class ListProjects(ListView):    
    model = Project
    paginate_by = 100
    adm_model = ProjectAdmin(Project,AdminSite()) 
    changelist = None        

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        self.changelist = self.adm_model.get_changelist_instance(self.request)

        context['cl']=self.changelist 
        return context

    def get_queryset(self):
        qs = super().get_queryset()
        get_params = self.request.GET.dict()

        self.changelist = self.adm_model.get_changelist_instance(self.request)

        (self.changelist.filter_specs, self.changelist.has_filters, remaining_lookup_params,
         filters_use_distinct) = self.changelist.get_filters(self.request)

        # Then, we let every list filter modify the queryset to its liking.
        qs = self.changelist.root_queryset
        for filter_spec in self.changelist.filter_specs:
            new_qs = filter_spec.queryset(self.request, qs)
            if new_qs is not None:
                qs = new_qs
        try:
            qs = qs.filter(**remaining_lookup_params)
        except:
            pass

        # Set ordering.
        ordering = self.changelist.get_ordering(self.request, qs)
        qs = qs.order_by(*ordering)

        # Apply search results
        qs, search_use_distinct = self.changelist.model_admin.get_search_results(self.request, qs, self.changelist.query)

        return qs

在模板中，我有搜索件

    <div class="row-fluid">
    <div class="span12">
        <form class='form-inline' accept-charset='UTF-8' method='get' action=''>
            <input type="text" size="40" name="q" value = "{{cl.params.q}}" id="searchbar" autofocus="">

            <button type='submit' class="btn">Search</button>
        </form>
    </div>
</div>

过滤片

        {% if cl.has_filters %}
          <div id="changelist-filter">
            <h3>{% trans 'Filter' %}</h3>
            {% for spec in cl.filter_specs %}
            {% admin_list_filter cl spec %}
            </div>
            {% endfor %}
          </div>
        {% endif %}

具有过滤器选项的Django ListView，例如DjangoAdmin

2 个答案: