'CategoryDetailView' 对象没有属性 'get_object'

Question

我正在为我的 CRM 设置我的 CategoryDetailView。然后出现这个错误：

'CategoryDetailView'对象没有属性'get_object'

这是我的代码部分来自 views.py:

class CategoryDetailView(LoginRequiredMixin, generic.ListView):
    template_name = "clients/category/category_detail.html"
    context_object_name = "category"

def get_context_data(self, **kwargs):
    context = super(CategoryDetailView, self).get_context_data(**kwargs)
    clients = self.get_object().client_set.all()
    context.update({
        "clients": clients
    })
    return context

这是我的 models.py

class Client(models.Model):

first_name = models.CharField(max_length=30)
middle_name = models.CharField(max_length=20)
last_name = models.CharField(max_length=20)
mobile_number = models.CharField(max_length=12)

organization = models.ForeignKey(UserProfile, on_delete=models.CASCADE)
agent = models.ForeignKey("Agent", null=True, blank=True, on_delete=models.SET_NULL)
category = models.ForeignKey("Category", related_name="clients", null=True, blank=True, on_delete=models.SET_NULL)



class Category(models.Model):
    name = models.CharField(max_length=30) # New, Tapped, Active, Closed
    organization = models.ForeignKey(UserProfile, on_delete=models.CASCADE)

    def __str__(self):
        return self.name

提前致谢！

Answer 1

您正在使用ListView [Django-doc], not a DetailView [Django-doc], and a ListView indeed has no .get_object(…) method [Django-doc]。您还应该指定 model = … 或 queryset = … 来指定 DetailView 正在处理的查询集。

因此您应该继承 DetailView。您还可以使用 self.object 来防止进行额外的查询：

from django.views.generic import <b>DetailView</b>

class CategoryDetailView(LoginRequiredMixin, <b>DetailView</b>):
    template_name = 'clients/category/category_detail.html'
    context_object_name = 'category'
    <b>model = Category</b>

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        clients = <b>self.object.</b>client_set.all()
        context['clients'] = clients
        return context

也没有理由将其添加到上下文中，在模板中，您可以简单地使用：

{% for client in category<b>.client_set.all</b> %}
    {{ client }}
{% endfor %}

'CategoryDetailView' 对象没有属性 'get_object'

'CategoryDetailView' object has no attribute 'get_object'

django

crm