尝试列出 html 中的对象时出现 Django TypeError

Question

我想为模型手动创建表单，但是当我尝试调用 object.all() 方法时，它在 return.

中出现 TypeError 错误

def addPatient(request):

con = Intensivecare_Form.objects.all()
context = {'items': con, 'title': 'Items'}
if request.method == 'POST':
    patient = Patient(name=request.POST.get("fname"), data=request.POST.get(
        "lname"), Intensivecare_Form=request.POST.get("cform"))
    try:
        patient.full_clean()
        patient.save()
    except ValidationError as e:
        # Do something based on the errors contained in e.message_dict.
        # Display them to a user, or handle them programmatically.
        return HttpResponse("Your form is wrong, try again")


return render(request, context, 'AddPatient.html')

我无法对 html 的 return 模型数据进行处理。

TypeError at /api/v1/localmngr/addPatient

join() argument must be str, bytes, or os.PathLike object, not 'dict'

Request Method:     GET
Request URL:    http://127.0.0.1:8000/api/v1/localmngr/addPatient
Django Version:     3.2.4
Exception Type:     TypeError
Exception Value:    

join() argument must be str, bytes, or os.PathLike object, not 'dict'

Exception Location:     /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/genericpath.py, line 152, in _check_arg_types
Python Executable:  /Library/Frameworks/Python.framework/Versions/3.9/bin/python3
Python Version:     3.9.6

型号

class Intensivecare_Form (models.Model):
    id = models.AutoField(primary_key=True)
    hospitals_id = models.ForeignKey(Hospital, on_delete=models.CASCADE)
    formname = models.CharField(max_length=128)
    data = models.JSONField()
    unites_id = models.ForeignKey(Unite, on_delete=models.CASCADE)


class Patient (models.Model):
    id = models.AutoField(primary_key=True)
    name = models.CharField(max_length=256)
    data = models.JSONField()
    intensivecare_forms_data_id = models.OneToOneField(
        Intensivecare_Forms_Data, on_delete=models.CASCADE)
    Intensivecare_form = models.ManyToManyField(Intensivecare_Form)

    def __str__(self):
        return f'Id = {self.id}, name = {self.name}'

我检查了错误 html 文件不影响错误。我认为唯一有效的是 object.all() 来自重症监护室。我不知道如何以正确的方式从模型中获取数据到 html。

Answer 1

documentation 中的以下行显示了 render 函数的签名：

render(request, template_name, context=None, content_type=None, status=None, using=None)

你可以看到 template_name 是 second 参数，而 context 是 third 参数，因此下面一行不正确：

return render(request, context, 'AddPatient.html')

相反，它需要是：

return render(request, 'AddPatient.html', context)

尝试列出 html 中的对象时出现 Django TypeError

Django TypeError while trying to list objects in html

django

django-models

django-forms