我正在尝试使用Flask,WTForms和通过flask-Bootstrap提供的宏来读取表单。这在某些情况下有效,在另一些情况下(看似相似)却无效。当我检查特定StringField的内容时,它始终评估为None,从而导致InputRequired()验证失败。
forms.py:
from wtforms import Form, validators, \
StringField, PasswordField, SubmitField, \
SelectField, RadioField
from wtforms.fields.html5 import DateField
from wtforms.validators import ValidationError, InputRequired, NoneOf, \
EqualTo, Length, Optional
class TestForm(Form):
name = StringField('Name', [validators.InputRequired(message='Please enter name!')])
date = DateField('Date', format='%Y-%m-%d') #, default=date.today())
address = StringField('Address')
submit = SubmitField('Add')
test.py:
from flask import render_template, redirect, request
from flask_security import login_required
from application.routes import routes
from application.forms import TestForm
@routes.route('/test', methods=['POST', 'GET'])
@login_required
def test():
form = TestForm()
print(form.name.data)
if request.method == 'POST' and form.validate():
print("validated")
return redirect("/")
return render_template('test.html', title="Asset Manager", form=form)
test.html:
{% extends 'layout.html' %}
{% import "bootstrap/wtf.html" as wtf %}
{% block content %}
<div class="container-fluid">
<h3><u>Test:</u></h3>
<br>
<div class="container-fluid col-md-3">
<form action="" method="POST" class="form" role="form" onsubmit="/">
<div class="row">
<div class="col-md-12">
{{ wtf.form_field(form.name, form_type="inline", placeholder="Name") }}
</div>
</div>
<div class="row">
<div class="col-md-5">
{{ wtf.form_field(form.date) }}
</div>
</div>
<div class="row">
<div class="col-md-12">
{{ wtf.form_field(form.address) }}
</div>
</div>
{{ wtf.form_field(form.submit, class="btn btn-primary") }}
</form>
{% for message in get_flashed_messages() %}
<div class="alert alert-warning">
<button type="button" class="close" data-dismiss="alert">×</button>
{{ message }}
</div>
</div>
{% endfor %}
</div>
{% endblock %}
这总是显示 None ,因此即使输入名称并按 Add 按钮,也永远不会通过验证检查。 我尝试创建一个最小的示例(仍然存在相同的问题),但是我遗漏了应用程序的大部分内容,因此,如果您需要更多信息,请告诉我,我们将很乐意为您提供这些信息。
答案 0 :(得分:0)
多亏了马克,我才找到了想念的地方。实例化表单时,我需要将请求作为参数传递。 所以这行
form = TestForm()
需要更改为
form = TestForm(request.form)
使应用程序正常工作。