在 Django 中访问嵌套值

Question

我正在尝试从 API 访问我的 Django 模板（使用 Jinja2）中的值，但遇到了一些困难。我是 Python/Django/programming 的新手，很难浏览 lists/dicts.

这个复杂的嵌套结构

这是单个航班的 API 响应的片段（响应总共包含 250 个航班）：

{
    "meta": {
        "count": 2
    },
    "data": [
        {
            "type": "flight-offer",
            "id": "1",
            "source": "GDS",
            "instantTicketingRequired": false,
            "nonHomogeneous": false,
            "oneWay": false,
            "lastTicketingDate": "2020-11-20",
            "numberOfBookableSeats": 2,
            "itineraries": [
                {
                    "duration": "PT22H40M",
                    "segments": [
                        {
                            "departure": {
                                "iataCode": "GIG",
                                "terminal": "2",
                                "at": "2020-12-01T16:30:00"
                            },
                            "arrival": {
                                "iataCode": "CDG",
                                "terminal": "2E",
                                "at": "2020-12-02T07:45:00"
                            },
                            "carrierCode": "AF",
                            "number": "443",
                            "aircraft": {
                                "code": "77W"
                            },
                            "operating": {
                                "carrierCode": "AF"
                            },
                            "duration": "PT11H15M",
                            "id": "3",
                            "numberOfStops": 0,
                            "blacklistedInEU": false
                        },
                        {
                            "departure": {...

对于每个航班，我想提取以下内容key/values：

id
持续时间
iata代码

以下是我到目前为止尝试过的...

id（成功）

  {% for flight in data %}
    {{ flight.id }}
  {% endfor %}

iataCode（未成功）

  {% for flight in data %}
    {% for itinerary in itineraries %}
      {% for segment in segments %}
        {{ departure.iataCode }}
      {% endfor %}
    {% endfor %}
  {% endfor %}

iataCode（未成功）

  {% for itineraries, itinerary in data %}
    {% for segments, segment in itineraries %}
      {{ departure.iataCode }}
    {% endfor %}
  {% endfor %}
{% endblock %}

非常感谢此处的任何建议。

谢谢！

Answer 1

您必须“遵循”循环变量。

{% for flight in data %}
    {% for itinerary in flight.itineraries %}
      {% for segment in itinerary.segments %}
        {{ segment.departure.iataCode }}
      {% endfor %}
    {% endfor %}
{% endfor %}

在 Django 中访问嵌套值

Accessing nested values in Django

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