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Django实现表单验证

2018-09-08 09:21 751 查看

本文实例为大家分享了Django实现表单验证的具体代码，供大家参考，具体内容如下

models.py

class Users(models.Model):
nickname = models.CharField(max_length=16, null=False, blank=False, unique=True)
email = models.EmailField(max_length=32, null=False, blank=False, unique=True)
password = models.CharField(max_length=64, null=False, blank=False)
head = models.ImageField(default="decault.png")
age = models.CharField(max_length=3,blank=True,null=True)
sex = models.CharField(max_length=2, blank=True, null=True)
isactivate = models.BooleanField(default=False)
def save(self):
if not self.password.startswith('pbkdf2_'):
self.password = make_password(self.password)
super().save()

form.py

from django import forms
from django.core.exceptions import ValidationError
from user.models import Users
#定义验证器
def nickname_validate(nickname):
u = Users.objects.filter(nickname=nickname)
if len(u):
print(len(u))
raise ValidationError('用户名已存在')
#定义表单
class RegisterForm(forms.Form):
nickname = forms.CharField(validators=[nickname_validate],
label='用户名',
max_length=16,
min_length=4,
required=True,
widget= forms.TextInput(),
)
password = forms.CharField(label='密码',
max_length=64,
min_length=6,
required=True,
widget=forms.PasswordInput())
email = forms.EmailField(label='邮箱',
max_length=32,
required=True)
age = forms.CharField(label='年龄',
max_length=3,
required=False)
sex = forms.ChoiceField(label='性别',
choices = ((0,'男'),(1,'女'),),
required=False)

view.py

from user.forms import RegisterForm
from user.models import Users
def register(request):
if request.method == 'POST':
form = RegisterForm(request.POST)
if form.is_valid():
u = Users()
u.nickname = form.cleaned_data['nickname']
u.email = form.cleaned_data['email']
u.password = form.cleaned_data['password']
u.age = form.cleaned_data['age']
u.sex = form.cleaned_data['sex']
u.save()
return render(request,'user_info.html')
else:
return render(request, 'register.html',context={'form':form,'errors': form.errors})
else:
form = RegisterForm()
return render(request,'register.html',context={'form':form})

register.html

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>注册</title>
</head>
<body>
<form class="form" action="{% url 'user:register' %}" method="post">
{% csrf_token %}
<table>
{{ form.as_p }}
</table>
<button type="submit" class="btn btn-primary btn-block">注册
</button>
<input type="hidden" name="next" value="{{ next }}"/>
</form>
</body>
</html>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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标签：  Django 表单验证
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