如何将数据从

Question

我想从我的views.py 中传递我的job_title，用于在forms.py 中的ModelForm 中查询数据库。 我目前能够从 url 获取 job_title 并将其传递给我的 views.py。 我目前面临的挑战是，每当我尝试在 ModelMultipleChoiceField 中查询数据库以获取特定职位的特定职位要求时，我都会不断收到错误消息。 我尝试使用我在本网站和 web 上找到的一些文章中的解决方案。

网址.py

 urlpatterns = [
    path('application_form/<str:job_title>/', views.application_form, name='application_form'),
]

视图.py

def application_form(request, *args, **kwargs):
try:
    job_title = kwargs.get('job_title')
    get_query_data = {'job_title__job_title': job_title}
    model_obj = Requirements.objects.filter(**get_query_data)
    form = ApplicationForm(request.POST or None, model_obj)
    context = {'form': form}

    if request.method == 'GET':
        return render(request, 'requirements/job_specs.html', context)
    if request.method == 'POST':
        print(form.is_valid())
        if form.is_valid():
            form.save()
            return JsonResponse({'created': True})
    return JsonResponse(form.errors.as_json(), safe=False)
except Exception as e:
    print(e)

form = ApplicationForm(request.POST or None)
context = {'form': form}
return render(request, 'requirements/job_specs.html', context)

模型.py

class Job(models.Model):
    company = models.CharField(max_length=35, default='ZICTA')
    job_title = models.CharField(max_length=40)
    description = models.TextField(max_length=250)

    def __str__(self):
        return self.job_title

class Requirements(models.Model):
    job_title = models.ForeignKey(Job, on_delete=models.CASCADE)
    required = models.CharField(max_length=250)

    def __str__(self):
        return self.required

class Applicants(models.Model):
    email = models.EmailField(max_length=30)
    required = models.ManyToManyField(Requirements)

    def __str__(self):
        return self.email

forms.py

class ApplicationForm(forms.ModelForm):

class Meta:
    model = Applicants
    fields = ['email', 'required']

def __init__(self, *args, **kwargs):
    super().__init__(*args, **kwargs)
    self.fields['required'].queryset = kwargs.get('model_obj')
    print(self.fields['required'].queryset)

email = forms.EmailField(label='', max_length=100, required=True, widget=forms.TextInput(
    attrs={'class': 'form-group form-control input-lg ', 'placeholder': 'Email'}), )
required = forms.ModelMultipleChoiceField(queryset=None, widget=forms.CheckboxSelectMultiple)

任何帮助将不胜感激。 提前致谢