python flask web开发实战 表单 form flask-wtf

hello.py 中CSRF

app = Flask(name)
app.config['SECRET_KEY'] = 'hard to guess string'
1、

表单，hello.py

from flask.ext.wtf import Form
from wtforms import StringField,SubmitField
from wtforms.valiadators import Required

class NameForm(Form):
name=StringField('What is your name?',validators=[Required()])
submit=SubmitField('Submit')

---

html 基本不适用

{{ form.hidden_tag() }}
{{ form.name.label }} {{ form.name(id='my-text-field') }}
{{ form.submit() }}

---

or #html 使用bootstrap渲染表单，wtf.quick_form(form)
{% extends "base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block title %}Flasky{% endblock %}
{% block page_content %}

Hello, {% if name %}{{ name }}{% else %}Stranger{% endif %}!

{{ wtf.quick_form(form) }}
{% endblock %}

---

hello.py @app.route('/',methods=['GET','POST']) form.name.data

@app.route('/', methods=['GET', 'POST'])
def index():
name = None
form = NameForm()
if form.validate_on_submit():
name = form.name.data
form.name.data = ''
return render_template('index.html', form=form, name=name)

---

2、

支持

StringField
TextAreaField
PasswordField
HiddenField
DateField
DateTimeField
IntegerField
DecimalField
FloatField
BooleanField 复选框
RadioField
SelectField
SelectMultipleField
FileField 文件上传
SubmitField
FormField
FieldList
3、

验证

Email
EqualTo
IPAddress
Length
NumberRange
Optional
Required 确保有数据
Regexp 正则
URL
AnyOf 在值内
NoneOf 不在
4、
###########记住用户是否登录，
from flask import Flask, render_template, session, redirect, url_for
@app.route('/', methods=['GET', 'POST'])
def index():
form = NameForm()
if form.validate_on_submit():
session['name'] = form.name.data
return redirect(url_for('index'))
return render_template('index.html', form=form, name=session.get('name'))