Python 炼金术查询

我使用米格尔·格林伯格的优秀教程创建了一个烧瓶项目。我正在修改示例代码以创建自己的站点

我的数据库中有两个表。司机和车队。我在models.py中创建了一个一对多关系，我想输出一个驱动程序列表和他们所属的团队。我已经包括routes.py和将显示结果的html文件

如果我在查询中指定一个驱动程序，routes.py中的查询可以正常工作，但是当我尝试Drivers.query.all（）时，它不会返回网页上的任何数据

注意=我已经在Python Shell中运行了，并且得到了正确的响应，只有当我尝试在网页上实现解决方案时，我才会遇到问题

Drivers.query.all()

pythonshell的输出

>>> details = Driver.query.all()
>>> details
[<Driver Lewis Hamilton>, <Driver Kimi Raikkonen>, <Driver Max Verstappen>]
>>> for d in details:
...     print(d.driverName, d.driverTeam)
... 
Lewis Hamilton Mercedes
Kimi Raikkonen Ferrari
Max Verstappen Red Bull
>>> 

driverDetails.html

{% extends "base.html" %}

{% block content %}
    <h1>Driver Details</h1>
    <!-- Output works correctly for one driver as specified in query on routes.py
    <div><p>{{ details.driverName }} is in: <b>{{ details.driverTeam }}</b></p></div>
    -->

    <!-- However, when trying to iterate over whole list of drivers, output shows 
    the text "drives for:". But there is no data being populated from the db
    -->
    {% for d in details %}
    <div><p>{{ details.driverName }} drives for: {{ details.driverTeam }}</p></div>
    {% endfor %}
   {% endblock %}

{%extends“base.html”%}
{%block content%}
驾驶员详细信息
{详细信息中的%d为%d}
{{details.driverName}}的驱动器：{{details.drivertam}

{%endfor%}
{%endblock%}

---

如果您能告诉我哪里出了问题，我将不胜感激。

您的代码基本上是正确的，您只需要实际使用您绑定到的对象

d

：

{% for d in details %}
<div><p>{{ d.driverName }} drives for: {{ d.driverTeam }}</p></div>
{% endfor %}

{%d的详细信息%}
{{d.driverName}}的驱动器：{{d.drivertam}

{%endfor%}

啊，太棒了！非常感谢乔比奇！真不敢相信我自己竟然没有注意到！

{% extends "base.html" %}

{% block content %}
    <h1>Driver Details</h1>
    <!-- Output works correctly for one driver as specified in query on routes.py
    <div><p>{{ details.driverName }} is in: <b>{{ details.driverTeam }}</b></p></div>
    -->

    <!-- However, when trying to iterate over whole list of drivers, output shows 
    the text "drives for:". But there is no data being populated from the db
    -->
    {% for d in details %}
    <div><p>{{ details.driverName }} drives for: {{ details.driverTeam }}</p></div>
    {% endfor %}
   {% endblock %}

{% for d in details %}
<div><p>{{ d.driverName }} drives for: {{ d.driverTeam }}</p></div>
{% endfor %}