来自字段标签列表的 Flask WTForm

Question

我正在尝试使用 Flask、WTForms 和 Jinja2 从给定的标签列表创建动态表单。表单应包含每个给定标签的 StringField。我目前的方法是在下面的代码中使用 FieldList。

我对这种方法的问题是，我无法区分每个请求的字典中的键。

request.form 给我这个 ImmutableMultiDict([('text', ''), ('text', ''), ('submit', 'submit')]) 键重复。

如何找出在哪个 StringField 中输入了哪个值？

理想情况下 request.form 应如下所示 ImmutableMultiDict([('field 1', ''), ('field 2', ''), ('submit', 'submit')])。

前端（index.html）

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
    </head>
    <body>
        <form action="" method="post">
            {% for entry in form.entries %}
                <p>{{entry.text.label}}: {{ entry.text }}</p> 
            {% endfor %}
            <p>{{form.submit()}}</p>
        </form>
    </body>
</html>

后端

from wtforms import FieldList, FormField, StringField, SubmitField
from flask_wtf import FlaskForm


class TextForm(FlaskForm):
    text = StringField('Placeholder')

class TextListForm(FlaskForm):
    entries = FieldList(FormField(TextForm))
    submit = SubmitField(u'submit')


from flask import Flask, render_template, request

app = Flask(__name__)
app.config.update(
    SECRET_KEY = 'asdf',
)
field_names = ["field 1", "field 2"]


@app.route('/', methods=['POST', 'GET'])
def index():
    fields = []
    for name in field_names:
        text_entry = TextForm()
        text_entry.text.label = name
        fields.append(text_entry)

    form = TextListForm()
    form.entries = fields

    if form.is_submitted():
        print(request.form)

    return render_template('index.html', form=form)

if __name__ == '__main__':
    app.run(debug=True)

输出：ImmutableMultiDict([('text', ''), ('text', ''), ('submit', 'submit')])

Answer 1

刚才忘了设置字段名：text_entry.text.name = name

@app.route('/', methods=['POST', 'GET'])
def index():
    fields = []
    for name in field_names:
        text_entry = TextForm()
        text_entry.text.label = name
        text_entry.text.name = name
        fields.append(text_entry)

    form = TextListForm()
    form.entries = fields

    if form.is_submitted():
        print(request.form)

    return render_template('index.html', form=form)

现在返回了所需的字典：ImmutableMultiDict([('field 1', ''), ('field 2', ''), ('submit', 'submit')])

来自字段标签列表的 Flask WTForm

Flask WTForm from list of field labels

dynamic

jinja2

flask

wtforms

flask-wtforms

前端（index.html）

后端