要添加一個字段，以形成和數據庫的Django

Question

我試着在forms.py加入另一場（PIN）和models.py中

我得到的錯誤是

「FieldError在/學生/註冊/ 無法解析關鍵字 '銷' 到現場的選擇是：date_joined，電子郵件，FIRST_NAME，組ID，IS_ACTIVE，is_staff，is_superuser，LAST_LOGIN，姓氏，logentry，密碼，user_infos，user_permissions，用戶名」

forms.py

class RegisterForm(forms.Form): 
    GRADE_CHOICES = ( 
       (9,'9'), (10,'10'), (11,'11'), (12,'12') , 
      ) 
    curr_year = date.today().year 
    GRAD_YEAR_CHOICES = ( 
       (curr_year,curr_year), (curr_year+1,curr_year+1), (curr_year+2,curr_year+2), (curr_year+3,curr_year+3) , 
       ) 
    first_name = forms.CharField(max_length = 25) 
    last_name = forms.CharField(max_length = 25) 
    emailid = forms.EmailField() 
    passwd1 = forms.CharField(max_length=100,widget=forms.PasswordInput) 
    passwd2 = forms.CharField(max_length=100,widget=forms.PasswordInput) 
    gradyear = forms.ChoiceField(choices=GRAD_YEAR_CHOICES) 
    grade = forms.ChoiceField(choices=GRADE_CHOICES) 
    pin = forms.IntegerField() 
    def clean(self): 
     cleaned_data = super(RegisterForm, self).clean() 
     print cleaned_data 
     if cleaned_data['passwd1'] != cleaned_data['passwd2']: 
      raise forms.ValidationError({'passwd1':['Password do not match']}) 

     if User.objects.filter(email=cleaned_data['emailid']).count(): 
      raise forms.ValidationError({'emailid':['Email already taken ']}) 
     if User.objects.filter(pin=cleaned_data['pin']).count(): 
      raise forms.ValidationError({'pin':['Pin already taken ']}) 

     return cleaned_data 

views.py

def signup(request): 
     print "signup" 
     if request.method == 'POST': 
      print "post signup" 
      form = RegisterForm(request.POST) 
      try: 
       if form.is_valid(): 
        print form.cleaned_data 
        u = User.objects.create_user(form.cleaned_data['emailid'], form.cleaned_data['emailid'], form.cleaned_data['passwd1']) 
        ui = UserInfo() 
        ui.user = u 
        ui.class_of = form.cleaned_data['gradyear'] 
        ui.grade = form.cleaned_data['grade'] 
        ui.balance = 0 
        print "Hi" 
        ui.pin = form.cleaned_data['pin'] 
        print ui.pin 
        u.first_name = form.cleaned_data['first_name'] 
        u.last_name = form.cleaned_data['last_name'] 
        u.save() 
        ui.save() 
        user = authenticate(username=form.cleaned_data['emailid'], password=form.cleaned_data['passwd1']) 
        login(request,user) 
        print "after login in signup" 
        return redirect("/") 


       else: 
        print "error" 
        print form.errors 
      except: 
       raise 
       print "error here" 
       print form.errors 
       pass 
       #return render(request, 'student/register.html', {'form': form}) 

     else: 
      form = RegisterForm() 

     return render(request, 'student/register.html', {'form': form}) 

models.py：

class UserInfo(models.Model): 
    user = models.OneToOneField(User, related_name='user_infos') 
    class_of = models.IntegerField() 
    #username = user.username 
    #fname = user.fname 
    #lname = user.last_name 
    #email = user.email 
    #Staff = user.is_staff 
    pub_date = models.DateTimeField(auto_now=True) 
    grade = models.IntegerField() 
    balance = models.DecimalField(max_digits=6, decimal_places=2) 
    pin = models.IntegerField() 
    #first_name = models.CharField(max_length = 25) 

我不認爲不這樣做的權利。有什麼辦法以另一種方式在數據庫中添加另一列？

Answer 1

您的的UserInfo模式「針」的領域，但在forms.py你試圖過濾用戶型號：

if User.objects.filter(pin=cleaned_data['pin']).count(): 

用戶模型沒有「腳」場，所以你得到了這個錯誤信息。

此外，我建議你要學會並開始使用ModelForms：https://docs.djangoproject.com/en/1.8/topics/forms/modelforms/