Flask-WTForms从JSON文件中选择字段数据

from flask import Flask, render_template
from flask_wtf import FlaskForm
from wtforms import FieldList, SelectField
import json

app = Flask(__name__)
app.config['SECRET_KEY'] = 'your_secret_key'

class MyForm(FlaskForm):
    field_data = FieldList(SelectField('Field Data'))

@app.route('/', methods=['GET', 'POST'])
def index():
    form = MyForm()
    
    # 从JSON文件中加载字段数据
    with open('data.json') as f:
        data = json.load(f)
    
    # 将字段数据添加到SelectField选项列表中
    form.field_data.choices = [(item, item) for item in data['field_data']]
    
    if form.validate_on_submit():
        # 处理表单提交逻辑
        selected_data = form.field_data.data
        # 其他逻辑...
    
    return render_template('index.html', form=form)

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