Flask WTForms 编辑表单载入数据

例如：要编辑订单关联的信息表记录，只需在实例化 wtforms 表单类时将 obj 参数指定为要显示的数据表记录即可。

@mod.route('/orders/<int:order_id>/', methods=['GET', 'POST'])
def edit_service_info(order_id):
    service_info_id = Order.query.get(order_id).service_info_id
    service_info = ServiceInfo.query.get(service_info_id)
    form = ServiceInfoForm(request.form, obj=service_info)

参考

• https://teamtreehouse.com/community/update-existing-posts-in-build-a-social-network-with-flask-has-anyone-built-this-functionality