TypeError：'manuscript' 是此函数的无效关键字参数

Question

在我的健康应用程序中，我试图让用户输入患者症状数据并保存。

我的应用包含Identity、Symptom 和IdentitySymptom 模型。

在Identity 和Symptom 之间存在ManyToManyField。

IdentitySymptom 模型包含两个 ForeignKey 字段，每个字段都引用 Identity 和 Symptom 模型。

在我的视图文档中，我使用基于类的视图来确保我创建的每个症状对象都附加到患者身上。

问题：每次创建 Symptom 对象并单击保存时，它都会返回此错误：

Traceback:

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/core/handlers/exception.py" in inner
  41.             response = get_response(request)

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  187.                 response = self.process_exception_by_middleware(e, request)

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/core/handlers/base.py" in _get_response
  185.                 response = wrapped_callback(request, *callback_args, **callback_kwargs)

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/views/generic/base.py" in view
  68.             return self.dispatch(request, *args, **kwargs)

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/views/generic/base.py" in dispatch
  88.         return handler(request, *args, **kwargs)

File "/Users/iivri.andre/vision_Map/iivri/script/views.py" in post
  115.             medical_key = IdentitySymptom.objects.create(patient = patient, manuscript = manuscript)

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/db/models/manager.py" in manager_method
  85.                 return getattr(self.get_queryset(), name)(*args, **kwargs)

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/db/models/query.py" in create
  392.         obj = self.model(**kwargs)

File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/django/db/models/base.py" in __init__
  573.                 raise TypeError("'%s' is an invalid keyword argument for this function" % list(kwargs)[0])

Exception Type: TypeError at /script/medical-document/O910231/
Exception Value: 'manuscript' is an invalid keyword argument for this function

我已经从我的Identity 模型创建了患者对象。

class Identity(models.Model):

    NIS =models.CharField(max_length = 200, primary_key = True)
    user = models.ForeignKey(settings.AUTH_USER_MODEL)
    time_patient_creation = models.DateTimeField(auto_now = True)
    first_name = models.CharField(max_length = 80, null = True)
    last_name = models.CharField(max_length = 80, null = True )
    contact = models.CharField(max_length = 15, null = True)
    location  = models.CharField(max_length = 100, blank = True)
    born = models.DateField(auto_now = False, auto_now_add = False, blank = True, null = True)

    patient_key = models.ManyToManyField('Symptom')

我还从 Symptom 模型创建了 Symptom 对象

我还创建了一个包含ForeignKey 字段的IdentitySymptom 模型

class IdentitySymptom(models.Model):

    identity = models.ForeignKey(Identity)
    key_medical = models.ForeignKey(Symptom)

这是我的视图文档，包含基于类的视图

from django.shortcuts import render, redirect
from django.views.generic import CreateView, ListView
from script.forms import  IdentityForm, MedicalForm


from script.models import Identity, Symptom, IdentitySymptom





class Identity_view(CreateView):


    model = Identity

    template_name = 'script/script.html'


    def get(self, request):



        form = IdentityForm()


        script = Identity.objects.filter(user = request.user)


        var = {'form':form, 'script':script}


        return render(request, self.template_name, var)


    def post(self, request):

        form = IdentityForm(request.POST)


        being = None



        if form.is_valid():


            NIS = form.save(commit = False)
            #
            NIS.user = request.user

            NIS.save()


            being = form.cleaned_data['NIS']

            form = IdentityForm()

            return redirect('script:script')

        var = {'form': form, 'being':being }


        return render(request, self.template_name, var)


class Identity_list_view(ListView):

    model = Identity

    template_name = 'script/identity_list.html'

    def get(self, request):

        form = IdentityForm()

        script = Identity.objects.filter(user = request.user)

        var = {'form':form, 'script':script}
        return render(request, self.template_name, var)


class Medical_document(CreateView):

    model = Symptom

    template_name = 'script/medical_document.html'

    def get(self, request, pk):

        form = MedicalForm

        script = Symptom.objects.all()
        var = {'form':form, 'script':script, 'pk':pk}

        return render(request, self.template_name, var)


    def post(self, request, pk):




        form = MedicalForm(request.POST)

        state = None

        if form.is_valid():



            manuscript = form.save(commit = False)

            manuscript.user = request.user


            state = form.cleaned_data['description']


            manuscript.save()





            patient = Identity.objects.get(pk=pk)

            medical_key = IdentitySymptom.objects.create(patient = patient, manuscript = manuscript)

            medical_key.patient.patient_key.add(manuscript)

            form = MedicalForm()

            redirect('script:script')

        else:
            print(form.errors)

        var = {'form': form, 'state': state, 'pk':pk}

        return render(request, self.template_name, var)

Answer 1

这一行

medical_key = IdentitySymptom.objects.create(patient = patient, manuscript = manuscript)

由于IdentitySymptom 没有手稿字段而引发错误。

根据你的定义，

class IdentitySymptom(models.Model):

    identity = models.ForeignKey(Identity)
    key_medical = models.ForeignKey(Symptom)

您只能分配identity 和key_medical。

我可以看到patient 是一个Identity 实例，并且假设原稿是一个Symptom，那么您实际上想要这样做

medical_key = IdentitySymptom.objects.create(identity = patient, key_medical = manuscript)