烧瓶WTForms形式不验证 [英] Flask WTForms form does not validate
问题描述
我无法获得一个简单的Flask WTForm来验证。
经过几天的努力，我尝试了所有我能想到的。我是一般的Flask和Web编程的新手。
这是我的代码的精简但工作版本。测试代码（除了提交表单）的唯一行为是将消息打印到终端。它运行时的外观：
这是views .py：
＃ - * - coding：utf_8 - * -
...
@ app.route（'/ test / new /'，methods = ['GET'，'POST']）
def newTest（）：$ b $ form = TestForm（request.form）
if form：
print'request.form.get（\'name \'）is％s'％（request.form.get（'name'），）
if request。方法=='POST'：
print'in newTest（），request is POST'
if form.validate（）：
print'form validates'
return redirect（url_for （'allTests'））
else：
print'form does not validate'
return render_template（'newTest.html'，form = form）
else：
返回render_template（'newTest.html ，form = form）
这里是forms.py：
pre $ class TestForm（Form）：
name = StringField（uTest Name，[validators.InputRequired（）]）
address = StringField（u Test Address，[validators.InputRequired（）]）
submit = SubmitField（uSubmit）
models.py：
from sqlalchemy import列，整型，Unicode
from sqlalchemy.ext.declarative import declarative_base
$ b Base = declarative_base（）
$ b $ class TestModel（Base）：
__tablename__ ='test'
name = Column（Unicode（80），nullable = False）
id = Column（Integer，primary_key = True）
address = Column（Unicode（80），nullable = False）
和模板：
< html lang =en>
< head>
< meta charset =utf-8>
< title>新测试< / title>
< / head>
< body>
< div>
< form action ={{url_for（'newTest'）}}method =POSTname =add_rest>
< ul>
< li>名称：{{form.name}}< / li>
< li>地址：{{form.address}}< / li>
< / ul>
< input type =submitvalue =Create>
< / div>
< / body>
< / html>
当我点击上面的创建时，输出（到终端）：
request.form.get（'name'）是在newTest（）中的Vinnie
，request是POST
表单不验证
10.0.2.2 - - [18 / Feb / 2016 02:34:51]POST / test / new / HTTP / 1.1200 -
然后浏览器重新显示表单及其内容。
我假设我错过了简单的东西，但是我一直没能弄明白我的生活。
$ b代码的结构，如tree所示：
我会非常感谢任何帮助！
解决方案
例如，通过将以下内容添加到Jinja模板中？
>
< body>
< div>
< form action ={{url_for（'newTest'）}}method =POSTname =add_rest>
<！ - 增加了一行 - >
{{form.csrf_token}}
< ul>
< li>名称：{{form.name}}< / li>
< li>地址：{{form.address}}< / li>
< / ul>
< input type =submitvalue =Create>
< / div>
< / body>
这个SO 文章可能是有用的。
您也可以查看官方文档这里表示
validate（）函数需要使用CSRF令牌。I cannot get a certain simple Flask WTForm to validate.
After a couple of days of struggle, I've tried everything I can think of. I'm new to Flask and Web programming in general.
Here's a stripped-down but working version of my code. The only action of the test code (other than submitting the form) is to print messages to terminal. Its appearance when running:
This is views.py:
# -*- coding: utf_8 -*- ... @app.route('/test/new/', methods=['GET','POST']) def newTest(): form = TestForm(request.form) if form: print 'request.form.get(\'name\') is %s' % (request.form.get('name'),) if request.method == 'POST': print 'in newTest(), request is POST' if form.validate(): print 'form validates' return redirect(url_for('allTests')) else: print 'form does not validate' return render_template('newTest.html', form=form) else: return render_template('newTest.html', form=form)Here's forms.py:
class TestForm(Form): name = StringField(u"Test Name", [validators.InputRequired()]) address = StringField(u"Test Address", [validators.InputRequired()]) submit = SubmitField(u"Submit")models.py:
from sqlalchemy import Column, Integer, Unicode from sqlalchemy.ext.declarative import declarative_base Base = declarative_base() class TestModel(Base): __tablename__ = 'test' name = Column(Unicode(80), nullable = False) id = Column(Integer, primary_key = True) address = Column(Unicode(80), nullable = False)and the template:
<html lang="en"> <head> <meta charset="utf-8"> <title>New Test</title> </head> <body> <div> <form action="{{ url_for('newTest') }}" method="POST" name="add_rest"> <ul> <li>Name: {{ form.name }}</li> <li>Address: {{ form.address }}</li> </ul> <input type="submit" value="Create"> </div> </body> </html>The output (to terminal) I get when I click "Create" above:
request.form.get('name') is Vinnie in newTest(), request is POST form does not validate 10.0.2.2 - - [18/Feb/2016 02:34:51] "POST /test/new/ HTTP/1.1" 200 -then the browser redisplays the form and its contents.
I assume I'm missing something simple, but I haven't been able to figure this out for the life of me.
The structure of the code, as shown by "tree", is:
I'd be very grateful for any help!
解决方案Have you tried to insert a CSRF token in your HTML file?
For example, by adding the following to your Jinja template?
<body> <div> <form action="{{ url_for('newTest') }}" method="POST" name="add_rest"> <!-- Added line --> {{ form.csrf_token }} <ul> <li>Name: {{ form.name }}</li> <li>Address: {{ form.address }}</li> </ul> <input type="submit" value="Create"> </div> </body>This SO post may be useful.
You can also check the official documentation here which indicates that the
validate()function requires the use of a CSRF token.这篇关于烧瓶WTForms形式不验证的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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