__init __（）得到了一個意外的關鍵字參數'last_name'

Question

我有一個表單保存的問題。我有一個名爲UserProfile模型，就像這樣：

class UserProfile(models.Model): 
    first_name = models.CharField(max_length=50) 
    last_name = models.CharField(max_length=75) 
    email = models.EmailField(max_length=50, unique=True) 
    password = models.CharField(max_length=16) 
    age = models.IntegerField() 
    ... 

和形式創建模型的實例，就像這樣：

class UserProfileForm(forms.Form): 
    first_name = forms.CharField(label='Introduzca su nombre', max_length=50) 
    last_name = forms.CharField(label='Introduzca sus apellidos', max_length=75) 
    email = forms.EmailField(label='Introduzca su email', max_length=50) 
    birth_date = forms.DateField(label='Introduzca su fecha de nacimiento', widget=forms.DateTimeInput(format='%d/%m/%Y')) 
    password = forms.CharField(label='Introduzca su contrasena', max_length=16, widget=forms.PasswordInput()) 
    password_repeat = forms.CharField(label='Por favor, repita su contrasena', max_length=16, widget=forms.PasswordInput()) 
    ... 
    def save(self): 
     age = (date.today()-self.cleaned_data['birth_date']).days/365 
     user = UserProfile(first_name=self.cleaned_data['first_name'], 
         last_name=self.cleaned_data['last_name'], 
         email=self.cleaned_data['email'], 
         password=self.cleaned_data['password'], 
         age=age) # The error is detected in this line 
     user.save() 
     return user 

它引發以下錯誤行：

__init__() got an unexpected keyword argument 'last_name' 

我不知道有什麼問題，誰能幫助我？

Answer 1

class UserProfile(models.Model): 
    first_name = models.CharField(max_length=50) 
    last_name = models.CharField(max_length=75) 
    email = models.EmailField(max_length=50, unique=True) 
    password = models.CharField(max_length=16) 
    age = models.IntegerField() 
    ... 

我想你在這裏有__init__方法，你沒有顯示。如果您使用的是它應該是這樣的：

def __init__(self, *args, **kwargs): 
     ... # your code here 
     super(UserProfile, self).__init__(*args, **kwargs) 
     ... # and/or here 

換句話說，你已經在方式，它的簽名不匹配母公司實現的簽名覆蓋__init__。