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| from flask import Flask, request, render_template
from wtforms.fields import simple, core
from wtforms import validators
from wtforms import Form
app = Flask(__name__)
class LoginForm(Form):
username = simple.StringField(
label="用户名", # 标签标记
validators=[
validators.DataRequired(message="用户名不能为空"),
validators.Length(min=3, max=10, message="用户名必须%(min)d-%(max)d个字符")
], # 校验条件 可迭代对象
id="user_id", # 标签ID
default=None, # 默认值
widget=None, # 默认组件
render_kw={"class": "my_login"} # 模板渲染配置信息
)
password = simple.PasswordField(
label="密码",
validators=[
validators.DataRequired(message="密码不能为空"),
validators.Length(min=6, max=12, message="密码必须%(min)d-%(max)d个字符")
],
id="pwd_id",
render_kw={"class": "my_login"}
)
repassword = simple.PasswordField(
label="确认密码",
validators=[validators.EqualTo(fieldname="password", message="两次输入密码不一致")]
)
gender = core.RadioField(
label="性别",
coerce=int,
choices=(
(1, "男"),
(2, "女")
),
default=1
)
@app.route('/', methods=["GET", "POST"])
def hello_world():
lf = LoginForm()
if request.method == "POST":
lf = LoginForm(request.form)
if lf.validate():
return lf.data.get("username")
return render_template("login.html", wtf = lf)
if __name__ == '__main__':
app.run()
|