__init __（）得到了一个意外的关键字参数'last_name'

Question

我有一个表单保存的问题。我有一个名为UserProfile模型，就像这样：

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() 
    ... 

和形式创建模型的实例，就像这样：

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 

它引发以下错误行：

__init__() got an unexpected keyword argument 'last_name' 

我不知道有什么问题，谁能帮助我？

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() 
    ... 

我想你在这里有__init__方法，你没有显示。如果您使用的是它应该是这样的：

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

换句话说，你已经在方式，它的签名不匹配母公司实现的签名覆盖__init__。