在Django中沒有綁定的表格

Question

在我發佈數據的Django視圖之一中，雖然表單與數據綁定，但表單無效，因此表單無效。我不完全確定爲什麼會發生這種情況。我正在使用的應用程序使用Angular作爲前端，所以我沒有在我的HTML中使用Django的表單類，但它應該沒關係，因爲Django的表單類只是創建HTML小部件？

的login.html

<div class="account-login" id="login-view"> 
    <div class="card card-half"> 
    <h2 class="text-center">Welcome back!</h2> 
    <h4 class="text-center">Sign in to your account.</h4> 

    <div class="alert alert-danger" ng-if="vm.errorMessage"> 
     {{ vm.errorMessage }} 
    </div> 

    <form class="form-horizontal" name="form" ng-submit="vm.login(vm.auth)"> 
     {% csrf_token %} 
     <div class="form-group"> 
     <label for="email" class="col-sm-3 control-label">Email</label> 

     <div class="col-sm-9 col-md-7"> 
      <input type="email" id="email" 
       class="form-control" 
       placeholder="name@example.com" 
       ng-model="vm.auth.email" 
       required 
       hl-focus> 
     </div> 
     </div> 

     <div class="form-group"> 
     <label for="password" class="col-sm-3 control-label">Password</label> 

     <div class="col-sm-9 col-md-7"> 
      <input type="password" id="password" name="password" 
       class="form-control" 
       placeholder="******" 
       ng-model="vm.auth.password" 
       required minlength="6"> 

      <div class="has-warning" ng-if="form.password.$dirty"> 
      <div class="help-block" ng-messages="form.password.$error"> 
       <div ng-message="minlength">Please enter at least six characters. 
       </div> 
      </div> 
      </div> 

     </div> 
     </div> 

     <div class="form-group"> 
     <div class="col-sm-3"></div> 
     <div class="col-sm-9 col-md-7"> 
      <button type="submit" class="btn btn-block btn-secondary" 
       ng-disabled="!form.$valid || vm.submitBusy"> 
      Sign in 
      <span ng-if="vm.submitBusy"><i class="fa fa-circle-o-notch fa-spin"></i></span> 
      </button> 
     </div> 
     </div> 

    </form> 

    </div> 
</div> 

<div class="col-sm-6 col-sm-offset-3"> 
    <p>Forgot your password? Reset it 
     <a ui-sref="auth.reset">here</a>.</p> 
    <p>Trying to create a team? 
     <a ui-sref="auth.join.personal">Sign up</a> to get started.</p> 
</div> 

形式

class LoginForm(forms.Form): 
    email = forms.EmailField(max_length=100) 
    password = forms.CharField(max_length=20) 
    token = forms.CharField(max_length=20) 

    def __init__(self, request=None, *args, **kwargs): 
     self.cached_user = None 
     self.request = request 
     kwargs.setdefault('label_suffix', '') 
     super(LoginForm, self).__init__(*args, **kwargs) 

    def clean(self): 
     cleaned_data = self.cleaned_data 

     if len(self._errors) > 0: 
      return cleaned_data 
     else: 
      email = cleaned_data.get('email') 
      password = cleaned_data.get('password') 

      if email is None or password is None: 
       messages.error(self.request, 'Please enter an email and password.') 
       return forms.ValidationError("Error") 
      else: 
       self.cached_user = authenticate(username=email, password=password) 

       if self.cached_user is None: 
        self._errors["password"] = self.error_class(["Password incorrect. Passwords are case sensitive."]) 
       elif not self.cached_user.is_active: 
        messages.error(self.request, 
            'This account is inactive. Please check your inbox for our confirmation email, and ' 
            'click the link within to activate your account.') 
        raise forms.ValidationError("Error") 

     if not cleaned_data.get('remember_me'): 
      self.request.session.set_expiry(0) 

     return cleaned_data 

    def get_user(self): 
     return self.cached_user 

視圖

def login(request): 
    # """ -Log in the user if credentials are valid """ 
    if request.method == "POST": 
     form = LoginForm(request.POST) 

     if form.is_valid(): 
      cleaned_data = form.clean() 

      account = Account.objects.get(email=cleaned_data['email'], password=cleaned_data['password']) 

      if cleaned_data['token']: 

       token = cleaned_data['token'] 
       invite = OrgInvite.objects.get(token=token) 
       org = Org.objects.get(id=invite.org_id) 
       if not invite: 
        raise Exception("Invitation token is invalid.") 
       if invite.used == True: 
        raise Exception("Invitation token has already been used.") 

       org_member = OrgMember.objects.get(account_id=account.id) 
       if org_member: 
        raise Exception("Account is already in team.") 
       else: 
        org.add_members(account.id, False, invite.is_admin) 
        invite.used = False 

        # add_to_welcome(org_id=org.id, account_id=account.id, inviter_id=invite.token) 

      else: 
       pass 

     context = { 
      'message': 'ok', 
      'next': '/app/' 
     } 

     return composeJsonResponse(200, "", context) 

Answer 1

這是一個常見的錯誤：您更改了表單類的初始化函數的簽名，以便第一個參數是請求。因此，當您執行LoginForm(request.POST)時，POST數據將轉到request參數，而不是data。 LoginForm(request, request.POST) - -

您可以通過確保你總是傳遞請求解決這個問題，但更好的方法是不改變的簽名，並通過請求作爲kwarg從**kwargs字典得到它。