为什么只有一个变量或表单传递给模板 django答案

【问题标题】：why only one variable or form passing to the template django为什么只有一个变量或表单传递给模板 django
【发布时间】：2020-07-06 19:34:01
【问题描述】：

我的表单正在传递，但品牌没有传递这是我的意见。py

class index(View):
template_name = 'homepage/columntemplate.html'
#form_class = MyForm

def get(self, request,*args, **kwargs):
    #for _ in range (10):
    #        value = randint(0,10)

    brand = Brand.objects.get(pk=randint(1,2))
    brand_listing ={'brand' : brand}
    return render(request, self.template_name, brand_listing)


def get(self, request, *args, **kwargs):
    form = Search(request.GET or None)
    if form.is_valid():
            form.save()
    content = {'form' : form}
    return render(request, self.template_name, content)

我的模板有两个标签 {{brand}} 和 {{form}}

【问题讨论】：

标签： python html django templates variables

【解决方案1】：

您需要添加 get_context_data 方法将值从视图传递到模板。像这样的

class index(FormView):
    template_name = 'homepage/columntemplate.html'
    form_class = MyForm

    def get(self, request, *args, **kwargs):
        # you can add your code here which will execute on page load
        return super().get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        brand = Brand.objects.get(pk=randint(1,2))
        brand_listing ={'brand' : brand}
        # you can add more such parameters you want to pass to the template
        # and you can use it like {{brand}}
        # and can also use {{form}} in the template if you define form_class (all fields from form can be accessed)
        context['brand'] = brand
        return context

    def post(self, request, *args, **kwargs):
        #  form = Search(request.GET or None)
        form = self.get_form()
        if form.is_valid():
            # define save method in your Form "MyForm"
            form.save()
        content = {'form' : form}
        return render(request, self.template_name, content)

希望这会有所帮助。

干杯！

【讨论】：