报障系统之博客主页及后台管理

from django.forms import Form
from django.forms import fields
from django.forms import widgets
from django.core.exceptions import ValidationError
from django.core.validators import RegexValidator
from app01 import models

class RegisterForm(Form):
    username = fields.CharField(
        required=True,
        widget=widgets.TextInput(
            attrs={'class':'form-control','placeholder':'用户名为6-10个字符'}
        ),
        min_length=6,
        max_length=10,
        strip=True,
        error_messages={
            'required': '用户名不能为空',
            'min_length':'用户名至少为6个字符',
            'max_length':'用户名不超过10个字符',
        },
    )
    password = fields.CharField(
        required=True,
        widget=widgets.PasswordInput(
            attrs={'class':'form-control','placeholder':'密码为8-12个字符'}
        ),
        min_length=8,
        max_length=12,
        strip=True,
        validators=[
            RegexValidator(r'((?=.*d))^.{8,12}$','必须包含数字'),
            RegexValidator(r'((?=.*[a-zA-Z]))^.{8,12}','必须包含字母'),
            # RegexValidator(r'((?=.*[^a-zA-Z0-9]))^.{8,12}','必须包含特殊字符'),
            # RegexValidator(r'^.(s){8,12}','必须包含空格'),
        ],#用于对密码的正则验证
        error_messages={
            'required': '密码不能为空',
            'min_length':'密码不能少于8个字符',
            'max_length':'密码最多为12个字符!',
        }
    )
    password_again = fields.CharField(
        required=True,
        widget=widgets.PasswordInput(
            attrs={'class':'form-control','placeholder':'密码为8-12个字符'}
        ),
        min_length=8,
        max_length=12,
        strip=True,
        error_messages={'required':'请再次输入密码!',}
    )
    nickname = fields.CharField(
        required=True,
        widget=widgets.TextInput(
            attrs={'class':'form-control','placeholder':'请输入昵称'}
        )
    )
    email = fields.EmailField(
        required=True,
        widget=widgets.TextInput(attrs={'class':'form-control','placeholder':'请输入邮箱'}),
        # strip=True,
        # error_messages={'required':'邮箱不能为空','invalid':'请输入正确的邮箱格式'},
    )
    avatar = fields.FileField(widget=widgets.FileInput(attrs={'id':'imgFile','class':'f1'}))
    code = fields.CharField(widget=widgets.TextInput(attrs={'class':'form-control','placeholder':'请输入验证码'}))
    def clean_username(self):
        #对于username扩展验证,查看是否存在
        username = self.cleaned_data['username']
        users = models.UserInfo.objects.filter(username=username).count()
        if users:#如果用户名已存在
            raise ValidationError('用户名已经存在!')
        return username
    def clean_email(self):
        #对于email的扩展验证,查看是否存在
        email = self.cleaned_data['email']
        email_count = models.UserInfo.objects.filter(email=email).count()
        if email_count:
            raise ValidationError('邮箱已经存在!')
        return email
    # def _clean_password(self):#验证两次输入密码是否一致
    #     password1 = self.cleaned_data['password']
    #     password2 = self.cleaned_data['password_again']
    #     if password1 and password2:
    #         if password1 != password2:
    #             raise ValidationError('您两次输入的密码不一致')

    def __init__(self,request,*args,**kwargs):#构造方法,传request参数
        super(RegisterForm,self).__init__(*args,**kwargs)#完成原有form功能以外
        self.request = request#再封装一个request

    def clean_code(self):
        input_code = self.cleaned_data['code']
        session_code = self.request.session.get('code')#session取验证码
        if input_code.upper() == session_code.upper():#验证相等时
            return input_code#
        raise ValidationError('验证码错误')

    def clean(self):  # 验证两次输入密码是否一致
        p1 = self.cleaned_data.get('password')
        p2 = self.cleaned_data.get('password_again')
        if p1 == p2:
            # return self.cleaned_data
            return None
        # else:
        #     raise ValidationError('密码不一致')
        self.add_error("password_again",ValidationError('密码不一致'))

            # except ValidationError as e:
            # self.add_error(name, e)
    # def clean(self):
    #     #基于form对象的验证，字段全部验证通过会调用clean函数验证
    #     self._clean_password()#调用函数
    #     p1 = self.cleaned_data['password']
    #     p2 = self.cleaned_data['password_again']
    #     return p2

    # def clean_password(self):
    #     p1 = self.cleaned_data['password']
    #     p2 = self.cleaned_data['password_again']
        return p2