Django inlineformset创建重复的查询

Question

我有一个表单，您可以在其中将产品添加到仓库。仓库是外键。我的视图重复了导致服务器超时的数据库查询。

def warehouse_in(request):
    catalog_doc = CatalogDocument.objects.all()
    contractor = Contractor.objects.all()
    currency = Currency.objects.all()
    if request.POST:
    form = WarehouseInForm(request.POST)
    if form.is_valid():
        warehousein = form.save(commit=False)
        warehousein_formset = WarehouseInFormSet(request.POST, instance=warehousein)
        if warehousein_formset.is_valid():
            warehousein.save()
            warehousein_formset.save()
            return redirect('catalog.views.warehouse_in_list')
else:
    form = WarehouseInForm()
    warehousein_formset = WarehouseInFormSet(instance=WarehouseIn())
return render(request, "catalog/templates/warehouse_in_form.html", {
    'form': form,
    'catalog_doc': catalog_doc,
    'contractor': contractor,
    'currency': currency,
    'warehousein_formset': warehousein_formset,
}, context_instance=RequestContext(request))

来自ddtb的信息：

SELECT•••FROM＆＃34; catalog_product＆＃34;在哪里＆＃34; catalog_product＆＃34;。＆＃34; id＆＃34; = 1 重复3次。