我试图以表单的形式链接一个模型对象与其他模型,但最终以无效的表单
Models.py: 病人类(models.Model):
name = models.CharField(max_length=200);
phone = models.CharField(max_length=20);
address = models.TextField();
Patient_id = models.AutoField(primary_key=True);
Gender= models.CharField(choices=GENDER,max_length=10)
consultant = models.CharField(choices=CONSULTANT,max_length=20)
def __str__(self):
return self.name
class Rooms(models.Model):
name = models.CharField(max_length=200)
room_num = models.IntegerField()
def __str__(self):
return str(self.name)
class Ipd(models.Model):
reason_admission = models.CharField(max_length=200, blank=False)
presenting_complaints = models.CharField(max_length=200,)
ipd_id = models.AutoField(primary_key=True)
rooms = models.OneToOneField(Rooms,on_delete=models.CASCADE,
blank=False)
investigation = models.CharField(max_length=300)
patient = models.ForeignKey(Patient,on_delete=models.CASCADE,null =
False)
Forms.py:
from .models import Patient,Ipd
class PatientForm(forms.ModelForm):
class Meta:
model = Patient
fields =
['name','phone','address','Patient_id','consultant','Gender']
class IpdForm(ModelForm):
class Meta:
model = Ipd
fields = ['patient','reason_admission','presenting_complaints',
'rooms','investigation']
views.py:
@login_required
def ipd (request,patient_id):
patient = Patient.objects.get(pk=patient_id)
if request.POST:
data = dict(request.POST)
data['patient']=Patient.Patient_id
formtwo = IpdForm(request.POST)
if formtwo.is_valid():
if formtwo.save():
return redirect('/', messages.success(request, 'Patient is
successfully updated.', 'alert-success'))
else:
return redirect('/', messages.error(request, 'Data is not
saved', 'alert-danger'))
else:
return redirect('/', messages.error(request, 'Form is not
valid', 'alert-danger'))
else:
formtwo = IpdForm(request.POST)
return render(request, 'newipd.html', {'form2':formtwo
,'form':patient})
我有用于创建患者的Patient模型和Ipd模型,该模型可在入院前从Patient那里获取更多信息。所以我想将IPD模型与Patient关联起来以创建新的IPD列表
答案 0 :(得分:0)
首先,这可能不是错误,但是这是一种普遍接受的做法: 代替
if request.POST:
做
if request.method == "POST":
此外,在重定向中,您正在将消息放入参数中。我对此不确定,但我认为您也许可以做到
messages.success ...
return redirect("/")
因为我认为您的重定向无效。 我非常怀疑错误会在您执行其他操作之后出现
formtwo = IpdForm(request.POST)
因为request.POST已经显示为None 而是
formtwo = IpdForm()
签出django form docs。 另外,我非常确定您不能在表单中放置外键(在您的情况下为IpdForm和Patient类)。相反,请从表单字段中删除“患者”并执行此操作
if formtwo.isvalid():
formtwo.user_id = request.user.id
我希望这至少可以有所帮助,并且您可以找出问题所在