Python 如何获取django中的多个关联记录

我有一个事件表和另一个表event_performance_details，每个事件可以有多个性能，因此我必须找到所有性能属于特定事件，同时从事件表中获取记录

events = Event.objects.all().filter(event_start_to__gte=today, status=True, current_step=3).order_by('-id')[:3]
for event in events:
    # Here i have to get the records of event performances 

在event_performance_details表中，我使用event_id作为events表记录的外键

编辑：这是我的模板代码，我必须在其中使用嵌套循环来执行事件

{% for event in events %}
    <p class="date-para">
    {% with performances = event.event_performance_details_set.all() %}
        {% for performance in performances %}
            {{ performance.city }}
        {% endfor %}
    {% endwith %}
    </p>
{% endfor %}

{%for events%}

{%with performances=event.event\u performance\u details\u set.all（）%}
{性能百分比中的性能百分比}
{{performance.city}
{%endfor%}
{%endwith%}

{%endfor%}

您可以使用反向关系检索每个事件的性能，如下所示：

events = Event.objects.all().filter(event_start_to__gte=today, status=True, current_step=3).order_by('-id')[:3]
for event in events:
    event.event_performance_details_set.all() # returns performances for the event

像Andrey Zarubin指出的那样编辑模板。应该是：

{% with performances = event.event_performance_details_set.all %}
    {% for performance in performances %}
        {{ performance.city }}
    {% endfor %}
{% endwith %}

---

您可以使用反向关系检索每个事件的性能，如下所示：

events = Event.objects.all().filter(event_start_to__gte=today, status=True, current_step=3).order_by('-id')[:3]
for event in events:
    event.event_performance_details_set.all() # returns performances for the event

像Andrey Zarubin指出的那样编辑模板。应该是：

{% with performances = event.event_performance_details_set.all %}
    {% for performance in performances %}
        {{ performance.city }}
    {% endfor %}
{% endwith %}

---

它在视图中工作但现在在django模板中工作它在视图中工作但现在在django模板中工作问题是

{%with performances=event.event\u performance\u details\u set.all（）%}

。它应该是

{%with performances=event.event\u performance\u details\u set.all%}

而不是谢谢@AndreyZarubin正在工作问题是

{%with performances=event.event\u performance\u details\u set.all（）}

。它应该是

{%with performances=event.event\u performance\u details\u set.all%}

insteadThank@AndreyZarubin正在工作