python - 搜索多个模型 (Elasticsearch)

Question

我向我的应用程序添加了第二个模型，现在我还想搜索该模型的字段，并在与第一个模型相同的 View 中返回它。

View .py

#Elasticsearch
def globalsearch_elastic(request):
    qs = request.GET.get('qs')
    page = request.GET.get('page')
    if qs:
        qs = PostDocument.search().query("multi_match", query=qs, fields=["title", "content", "tag"])
        qs = qs.to_queryset()
    else:
        qs = ''
    paginator = Paginator(qs, 10)  # Show 10 results per page
    try:
        qs = paginator.page(page)
    except PageNotAnInteger:
        qs = paginator.page(1)
    except EmptyPage:
        qs = paginator.page(paginator.num_pages)
    return render(request, 'MyProject/search/search_results_elastic.html', {'object_list':qs})

目前仅在 PostDocument 中搜索匹配项，我如何在此函数中从 Documents.py 添加第二个匹配项？或者更具体地说，我必须在这一行中更改什么才能搜索多个文档？

qs = PostDocument.search().query("multi_match", query=qs, fields=["title", "content", "tag"])

这就是“qs”的来源(base.html):

<div class="globalsearch">
        <form id="searchform" action="{% url 'search' %}" method="get" accept-charset="utf-8">
            <div class="form-row align-items-center">
                <input class="class-search-input-fields" id="searchbox" name="qs" required="required" type="text" placeholder="Search ..."><a>in</a>
                <div class="custom-dropdown">
                    <a>{{ categorysearch_form.category }}</a>
                </div>
                <button class="btn btn-dark" type="submit">
                    <i class="fa fa-search"></i>
                </button>
            </div>
        </form>
    </div>

文档.py:

提前致谢

Answer 1

让它像这样工作:

def globalsearch_elastic(request):
    qs = request.GET.get('qs')
    page = request.GET.get('page')
    if qs:
        post = PostDocument.search().query("multi_match", query=qs, fields=["title", "content", "tag"]).to_queryset()
        post_extra = PostExtraDocument.search().query("multi_match", query=qs, fields=["title", "content_preview", "tag"]).to_queryset()
        qs = list(
            sorted(
                chain(post, post_extra),
                key=lambda objects: objects.pk
            ))
    else:
        qs = ''
    paginator = Paginator(qs, 10)  # Show 10 results per page
    try:
        qs = paginator.page(page)
    except PageNotAnInteger:
        qs = paginator.page(1)
    except EmptyPage:
        qs = paginator.page(paginator.num_pages)
    return render(request, 'MyProject/search/search_results_elastic.html', {'object_list': qs})

我知道这可能不是“最佳实践”，因为我总是必须加载所有帖子，然后对它们进行排序并按创建日期(pk)显示它们。

无论如何，从我的角度来看，如果你不必搜索数百万个帖子，那很好......除此之外，你仍然拥有弹性的力量，即使这不能对我的帖子列表进行排序