Django实现表单验证

框架(架构)  /  管理员 发布于 7年前   185

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 formsfrom django.core.exceptions import ValidationErrorfrom 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 RegisterFormfrom user.models import Usersdef 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。


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