form表单 Django验证处理 自定义验证密码

form主要完成验证功能和生成HTML代码

继承创建类

from django import forms

from django.forms import fields

class F1form(forms.Form):

显示

HTML

修改

html

添加

HTML

form 与 ajax 交互验证

HTML页面

自定义密码

 登录，注册
        - 密码：数字，字母，特殊字符
        - 密码两次输入一致
        
        提交：
            v = MyForm(request.GET) # 6个字段
            if v.is_valid():
                pass
        
        密码示例：RegexField自定义密码验证规则
        
            password = forms.RegexField(
                '^(?=.*[0-9])(?=.*[a-zA-Z])(?=.*[[e-mail]#$\%\^\&\*\(\)])[[e-mail]#$\%\^\&\*\(\)]{8,32}$',
                min_length=12,
                max_length=32,
                error_messages={'required': '密码不能为空.',
                                'invalid': '密码必须包含数字，字母、特殊字符',
                                'min_length': "密码长度不能小于8个字符",
                                'max_length': "密码长度不能大于32个字符"}
            )
              

            class RegisterForm(BaseForm, django_forms.Form):
                username = django_fields.CharField()
                password = django_fields.CharField()
                confirm_pwd = django_fields.CharField()

                def clean(self):
                    v1 = self.cleaned_data['password']
                    v2 = self.cleaned_data['confirm_pwd']
                    if v1 == v2:
                        pass
                    else:
                        from django.core.exceptions import ValidationError
                        raise ValidationError('密码输入不一致')
        
            
            def register(request):
                v = RegisterForm(request.POST)
                if v.is_valid():
                    pass
                else:
                    v.errors['username']
                    v.errors['__all__']
                    v.errors[NON_FIELD_ERRORS]
                    {
                        __all__: [],
                        username: [],
                        password: []
                        confirm_pwd: []
                    }
                
                return render(request, 'register.html', {'v':v})
                
                
            register.html
            
                {{v.errors.username.0}}
                
                {{v.non_field_errors}}