Django ListView如何用另一个上下文压缩上下文数据

Question

我正在尝试将一些上下文添加到我的ListView上下文中，并在一个for循环中访问它们，如下所示

class WeatherListView(ListView):
        """
        List view of Weather data
        """

template_name = "frontend/weather_list.html"
model = Weather

def get_context_data(self, **kwargs):
    weather_query = Weather.objects.all()
    temp_list = list(weather_query.values_list('temperature', flat=True))
    humidity_list = list(weather_query.values_list('humidity', flat=True))
    
    temp_list_compared = compare_item_to_previous(temp_list)
    humidity_list_compared = compare_item_to_previous(humidity_list)

    data = super().get_context_data(**kwargs)

    context = {
        "object_list": zip(data, temp_list_compared, humidity_list_compared)
    }

    return context

然后我想把我的数据放在for循环模板中

{% for i in object_list %}
{{ i.0.some_field_in_original_context }}
{{ i.1 }}
{{ i.2 }}
{% endfor %}

但我最终得到的原始上下文{{ i.0 }}是这样的

paginator
page_obj
is_paginated

如何在将原始ListView数据压缩后仍能访问它。

__

更新：

明白了，我需要在原始上下文中压缩object_list ListView context如下所示：

 {'paginator': None, 'page_obj': None, 'is_paginated': False,
 'object_list': <QuerySet [<Weather: 2021-04-06 14:34:32.895936+00:00>,
                            <Weather: 2021-04-06 20:40:00.304090+00:00>,
                            <Weather: 2021-04-07 04:24:39.292096+00:00>]>,
'weather_list': <QuerySet [<Weather: 2021-04-06 14:34:32.895936+00:00>,
                            <Weather: 2021-04-06 20:40:00.304090+00:00>,
                            <Weather: 2021-04-07 04:24:39.292096+00:00>]>,
'view': <frontend.views.WeatherListView object at 0x7f4ec824b3d0>}

我的新背景是：

context = {
            "object_list": zip(data["object_list"], temp_list_compared, humidity_list_compared)
        }

Answer 1

明白了，我需要在原始上下文中压缩object_list ListView context如下所示：

 {'paginator': None, 'page_obj': None, 'is_paginated': False,
 'object_list': <QuerySet [<Weather: 2021-04-06 14:34:32.895936+00:00>,
                            <Weather: 2021-04-06 20:40:00.304090+00:00>,
                            <Weather: 2021-04-07 04:24:39.292096+00:00>]>,
'weather_list': <QuerySet [<Weather: 2021-04-06 14:34:32.895936+00:00>,
                            <Weather: 2021-04-06 20:40:00.304090+00:00>,
                            <Weather: 2021-04-07 04:24:39.292096+00:00>]>,
'view': <frontend.views.WeatherListView object at 0x7f4ec824b3d0>}

我的新背景是：

context = {
            "object_list": zip(data["object_list"], temp_list_compared, humidity_list_compared)
        }