标签：gen port 组件 下拉框 font rom django char error
form组件的主要功能：
使用form表单实现注册功能
1、导入form
from django import forms
2、定义一个form类
class Regform(forms.Form):
user = forms.CharField(max_length= 8,label=‘用户名‘)
pwd = forms.CharField(min_length=6,label=‘密码‘)
3、实例化form对象，传导模板语言中
def reg(request):
form_obj = Regform()
return render(request,‘reg.html‘,{‘form_obj‘:form_obj})
4、在模板语言中调用form对象的响应方法和属性
对得到的只做校验。将值写入到数据库
form表单的常用字段和插件
初始值initial input框里HTML里边默认的显示的值
class Regform(forms.Form):
user = forms.CharField(max_length= 8,label=‘用户名‘,initial="小白")
pwd = forms.CharField(min_length=6,label=‘密码‘)
error_messages 重写错误信息
class Regform(forms.Form):
user = forms.CharField(
min_length= 8,
label=‘用户名‘,
error_messages={
"required": "不能为空",
"invalid": "格式错误",
"min_length": "用户名最短8位"
}
)
pwd = forms.CharField(min_length=6,label=‘密码‘)
password
from django.forms import widgets #使用widgers插件生成HTML相关的设置 from django import forms class Regform(forms.Form): user = forms.CharField( min_length= 8, label=‘用户名‘, error_messages={ "required": "不能为空", "invalid": "格式错误", "min_length": "用户名最短8位" } ) pwd = forms.CharField( min_length=6, label=‘密码‘, widget=widgets.PasswordInput(attrs={‘class‘: ‘c1‘},render_value=True) #密码还是在输入框内 )
radioSelect 单选
class Regform(forms.Form):
user = forms.CharField(
min_length=8,
label=‘用户名‘,
error_messages={
"required": "不能为空",
"invalid": "格式错误",
"min_length": "用户名最短8位"
}
)
pwd = forms.CharField(
min_length=6,
label=‘密码‘,
widget=widgets.PasswordInput(attrs={‘class‘: ‘c1‘}, render_value=True)
)
gender = forms.fields.ChoiceField(
choices=((1, "男"), (2, "女"), (3, "保密")),
label="性别",
initial=3,
widget=forms.widgets.RadioSelect()
)
下拉框select的单选与多选
class Regform(forms.Form):
hobby = forms.ChoiceField(
choices=((1, "篮球"), (2, "足球"), (3, "双色球"),),
label="爱好",
initial=3,
widget=forms.widgets.Select()
)
hobby2 = forms.MultipleChoiceField(
choices=((1, "篮球"), (2, "足球"), (3, "双色球"),),
label="爱好",
initial=[1, 3],
widget=forms.widgets.SelectMultiple()
)
checkbox的单选与多选
class Regform(forms.Form):
hobby3 = forms.MultipleChoiceField(
choices=((1, "篮球"), (2, "足球"), (3, "双色球"),),
label="爱好",
initial=[1, 3],
widget=forms.widgets.CheckboxSelectMultiple()
)
keep = forms.ChoiceField(
label="是否记住密码",
initial="checked",
widget=forms.widgets.CheckboxInput()
)
标签：gen port 组件 下拉框 font rom django char error
原文地址：https://www.cnblogs.com/weidaijie/p/9918221.html
