Python 未使用django中的obj.save()保存模型
我将此模型作为内置用户模型的扩展:Python 未使用django中的obj.save()保存模型,python,django,django-2.0,Python,Django,Django 2.0,我将此模型作为内置用户模型的扩展: class userprofile(models.Model): phone = models.CharField(max_length=20) address = models.CharField(max_length=500) user = models.OneToOneField(User, on_delete=models.CASCADE) @receiver(post_save, sender=User)
class userprofile(models.Model):
phone = models.CharField(max_length=20)
address = models.CharField(max_length=500)
user = models.OneToOneField(User, on_delete=models.CASCADE)
@receiver(post_save, sender=User)
def create_user_profile(sender, instance, created, **kwargs):
if created:
userprofile.objects.create(user=instance)
@receiver(post_save, sender=User)
def save_user_profile(sender, instance, **kwargs):
instance.userprofile.save()
用于创建这些模型的django form类包括:
class UserRegister(forms.Form):
first_name = forms.CharField(required=True, widget=forms.widgets.TextInput(attrs={'placeholder': 'First Name'}))
last_name = forms.CharField(required=True, widget=forms.widgets.TextInput(attrs={'placeholder': 'Last Name'}))
username = forms.CharField(required=True, widget=forms.widgets.TextInput(attrs={'placeholder': 'Username'}))
email = forms.EmailField( required=True, widget=forms.widgets.EmailInput(attrs={'placeholder': 'Email'}))
password =forms.CharField(required=True, widget=forms.widgets.PasswordInput())
confirm_password =forms.CharField(required=True, widget=forms.widgets.PasswordInput())
class Meta:
model=User
fields=['first_name','last_name','username','email','password','confirm_password']
def clean(self):
cleaned_data = super(UserRegister, self).clean()
password = cleaned_data.get("password")
confirm_password = cleaned_data.get("confirm_password")
if password != confirm_password:
raise forms.ValidationError(
"password and confirm_password does not match"
)
class UserProfileCreate(forms.Form):
mobile = forms.CharField(required=True, widget=forms.widgets.NumberInput(attrs={'placeholder': 'Mobile No.'}))
address = forms.CharField(required=True, widget=forms.widgets.TextInput(attrs={'placeholder': 'Delivery address'}))
class Meta:
model= userprofile
fields=['mobile', 'address']
HTML类似于:
<form class="form-horizontal" method="POST" action="{% url 'createuser' %}">
{% csrf_token %}
{% for hidden in form.hidden_fields %}
{{ hidden }}
{% endfor %}
{% for field in form.visible_fields %}
<div class="form-group">
<label for="{{ field.id_for_label }}">{{ field.label }}</label>
{{ field|add_class:'form-control' }}
{% for error in field.errors %}
<span class="help-block">{{ error }}</span>
{% endfor %}
</div>
{% endfor %}
{% for field in formplus.visible_fields %}
<div class="form-group">
<label for="{{ field.id_for_label }}">{{ field.label }}</label>
{{ field|add_class:'form-control' }}
{% for error in field.errors %}
<span class="help-block">{{ error }}</span>
{% endfor %}
</div>
{% endfor %}
<div class="form-group">
<div class="col-md-6 col-md-offset-4">
<button type="submit" class="btn btn-primary">
Register
</button>
</div>
</div>
</form>
我在学习了一些django教程之后做了这件事。我没有在任何地方看到任何不正确的代码,但我无法将这样提交的表单保存为模型。我没有在views.py中执行userprofile.save()
,因为它是通过OneToOneField连接到用户的,我提到了在创建用户时自动创建userprofile
不会引发任何错误,也不会创建帐户。你们能略过一下吗 这里有几个问题。主要原因是您的用户表单无效。但是,您没有将无效表单传递回模板,因此您永远看不出它为什么无效。您应该传递已经创建的实例,而不是传递类
return render(request, 'userextension/usercreate.html', {'form' : user, 'message': 'Could not create account'})
第二个问题是,您从未对配置文件表单执行任何操作—您没有检查它是否有效,也没有保存它
还请注意,在成功发布后,您应该始终重定向。是否检查了
user.is\u valid()
是否实际返回True
?我认为不会,因为您在字段中缺少确认密码
,但该字段是必需的。我认为该字段将包含模型本身中存在的字段,但我错了。谢谢你。但是,即使我在字段中添加了确认密码,问题仍然是一样的。谢谢你的回复。我很难弄清楚如何将无效表单重定向回模板。请你在这方面再加一点说明好吗。另外,我没有保存UserProfile实例,因为它是通过OneToOneField与用户链接的,并且在创建用户时自动创建的,我在其模型中提到了这一点。我不明白,我向您展示了如何将无效表单传递回模板。哎呀,我的错。很抱歉给您添麻烦。看起来我也犯了一些其他愚蠢的错误,但是我上面问题的核心问题是通过重定向当前实例来解决的。因此,我将此标记为已接受。谢谢,伙计
return render(request, 'userextension/usercreate.html', {'form' : user, 'message': 'Could not create account'})