Python 使用基于Django类的视图进行筛选和分页

希望将分页添加到我的视图中，使用-令我惊讶的是，我在这个文档丰富的包中没有找到关于分页的文档（这似乎非常常见）。然而，我确实在这个主题上发现了几个问题，但没有一个问题有明确的解决方案，更不用说基于类的观点了

我正在密切关注本指南，但目前仍处于停滞状态（下面是错误消息）

url.py

path('trade/', TradeFilteredListView.as_view(), name="trade-list"),

def associated_portfolios(request):
    associated_portfolios = Portfolio.objects.filter(user=request.user)
    return associated_portfolios.all()

class TradeFilter(django_filters.FilterSet):
    associated_portfolios = django_filters.ModelMultipleChoiceFilter(queryset=associated_portfolios)
    date_range = django_filters.DateFromToRangeFilter(label='Date Range', field_name='last_entry',
                                                      widget=RangeWidget(attrs={'type': 'date'}))
    
    class Meta:
        model = Trade
        fields = ['status', 'type', 'asset', 'symbol', 'broker', 'patterns', 'associated_portfolios']

class FilteredListView(ListView):
    filterset_class = None

    def get_queryset(self):
        # Get the queryset however you usually would.  For example:
        queryset = super().get_queryset()
        # Then use the query parameters and the queryset to
        # instantiate a filterset and save it as an attribute
        # on the view instance for later.
        self.filterset = self.filterset_class(self.request.GET, queryset=queryset)
        # Return the filtered queryset
        return self.filterset.qs.distinct() #.filter(user=self.request.user).order_by('last_entry')

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        # Pass the filterset to the template - it provides the form.
        context['filterset'] = self.filterset_class
        return context

# Attempt @ Combining Filter and List View to get: TradeFilteredListView
class TradeFilteredListView(FilteredListView):
    model = Trade
    filterset_class = TradeFilter
    paginate_by =  5
    template_name = 'portfolios/trade_filter.html'

过滤器.py

path('trade/', TradeFilteredListView.as_view(), name="trade-list"),

def associated_portfolios(request):
    associated_portfolios = Portfolio.objects.filter(user=request.user)
    return associated_portfolios.all()

class TradeFilter(django_filters.FilterSet):
    associated_portfolios = django_filters.ModelMultipleChoiceFilter(queryset=associated_portfolios)
    date_range = django_filters.DateFromToRangeFilter(label='Date Range', field_name='last_entry',
                                                      widget=RangeWidget(attrs={'type': 'date'}))
    
    class Meta:
        model = Trade
        fields = ['status', 'type', 'asset', 'symbol', 'broker', 'patterns', 'associated_portfolios']

class FilteredListView(ListView):
    filterset_class = None

    def get_queryset(self):
        # Get the queryset however you usually would.  For example:
        queryset = super().get_queryset()
        # Then use the query parameters and the queryset to
        # instantiate a filterset and save it as an attribute
        # on the view instance for later.
        self.filterset = self.filterset_class(self.request.GET, queryset=queryset)
        # Return the filtered queryset
        return self.filterset.qs.distinct() #.filter(user=self.request.user).order_by('last_entry')

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        # Pass the filterset to the template - it provides the form.
        context['filterset'] = self.filterset_class
        return context

# Attempt @ Combining Filter and List View to get: TradeFilteredListView
class TradeFilteredListView(FilteredListView):
    model = Trade
    filterset_class = TradeFilter
    paginate_by =  5
    template_name = 'portfolios/trade_filter.html'

视图.py

path('trade/', TradeFilteredListView.as_view(), name="trade-list"),

def associated_portfolios(request):
    associated_portfolios = Portfolio.objects.filter(user=request.user)
    return associated_portfolios.all()

class TradeFilter(django_filters.FilterSet):
    associated_portfolios = django_filters.ModelMultipleChoiceFilter(queryset=associated_portfolios)
    date_range = django_filters.DateFromToRangeFilter(label='Date Range', field_name='last_entry',
                                                      widget=RangeWidget(attrs={'type': 'date'}))
    
    class Meta:
        model = Trade
        fields = ['status', 'type', 'asset', 'symbol', 'broker', 'patterns', 'associated_portfolios']

class FilteredListView(ListView):
    filterset_class = None

    def get_queryset(self):
        # Get the queryset however you usually would.  For example:
        queryset = super().get_queryset()
        # Then use the query parameters and the queryset to
        # instantiate a filterset and save it as an attribute
        # on the view instance for later.
        self.filterset = self.filterset_class(self.request.GET, queryset=queryset)
        # Return the filtered queryset
        return self.filterset.qs.distinct() #.filter(user=self.request.user).order_by('last_entry')

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        # Pass the filterset to the template - it provides the form.
        context['filterset'] = self.filterset_class
        return context

# Attempt @ Combining Filter and List View to get: TradeFilteredListView
class TradeFilteredListView(FilteredListView):
    model = Trade
    filterset_class = TradeFilter
    paginate_by =  5
    template_name = 'portfolios/trade_filter.html'

错误

TradeFilter中关联的_公文包（在正常FilterView中工作）错误消息：

AttributeError:“非类型”对象没有属性“用户”

在我的工作FilterView中，我正在筛选用户并按最后一个条目排序。如何在新的FilteredListView中实现这一点

将其附加到

    context['filterset'] = self.filterset_class

看来

    context['filterset'] = self.filterset_class.filter(user=self.request.user).order_by('last_entry')

给出此错误：

type object 'TradeFilter' has no attribute 'filter'

---

旁注

这是我的工作过滤器视图，我现在正试图对其进行分页

class TradeFilterView(LoginRequiredMixin, FilterView):
    model =  Trade
    filterset_class = TradeFilter
    paginate_by =  5

    def get_queryset(self):
        return Trade.objects.filter(user=self.request.user).order_by('last_entry')

---

你找到答案了吗？我有同样的问题。