如何渲染Flask WTF HTML 5小部件?

时间:2014-05-04 10:22:12

标签: python html flask flask-wtforms

我正在尝试使用Flask的html 5小部件来构建RangeInput(搜索“范围”以找到它)。 我想我在HTML模板中遗漏了一些东西,因为它呈现的是:

It does not create a form but text !

正如你所看到的,这不是我想要的:我期待这样的事情:

enter image description here

所以我认为错误并不是那么棘手,但我找不到它。这是我的不同文件:

__author__ = 'laurentmeyer'

# That's my main class, don't be afraid, all is local, you cannot hack anything

from MySQL import MySQL
from flask import Flask, render_template
from Form import Form;

mysql = MySQL();
app = Flask(__name__)
app.config['MYSQL_DATABASE_USER'] = 'Laurent'
app.config['MYSQL_DATABASE_PASSWORD'] = 'laurent'
app.config['MYSQL_DATABASE_DB'] = 'Houses'
app.config['MYSQL_DATABASE_HOST'] = 'localhost'
mysql.init_app(app)

@app.route("/")
def home():
    cursor = mysql.connect().cursor()
    cursor.execute("SELECT * from Offers;")
    data = cursor.fetchall()
    form = Form(csrf_enabled=False);
    if data is None:
        return "No data"
    else:
            return render_template('DB template.html',form = form, offers = data)

if __name__ == "__main__":
    app.run()

我的HTML模板:

<!DOCTYPE html>
<html>
<head>
    <title>Tableau des maisons</title>
</head>
<body>
<form><p>Test: {{ form.ImportanceOfPrice }} </p></form>
<!--<table>{% for house in offers %}<tr><td>Titre: {{house[0]}}</td><td>Lien: <a href="{{house[1]}}">{{house[1]}}</a></td></tr>{% endfor %}</table>-->
</body>
</html>

最后,这是我的Form.py(非常简单):

__author__ = 'laurentmeyer'

from flask_wtf import Form
from flask_wtf.html5 import RangeInput

class Test(Form):
    ImportanceOfPrice = RangeInput(0.1)

1 个答案:

答案 0 :(得分:5)

以下代码应该有用:

from flask import Flask, render_template
from wtforms import Form
from wtforms.fields.html5 import DecimalRangeField


app = Flask(__name__)
app.config['DEBUG'] = True


class TestForm(Form):
    price_importance = DecimalRangeField('Price Importance')


@app.route("/")
def home():
    form = TestForm(csrf_enabled=False)
    return render_template('tpl.html', form=form)


if __name__ == "__main__":
    app.run()

模板tpl.html,默认情况下,必须放入文件夹'templates':

<!DOCTYPE html>
<html>
<body>
<form>
    <p>{{ form.price_importance.label }}: {{ form.price_importance }}</p>
</form>
</body>
</html>

您的代码包含一些错误:

  • Python不需要使用分号来终止语句。
  • 您没有导入正确的表单类(您应该导入 Test 表单类)
  • 在表单类中,您通常应声明 fields (通过小部件呈现)