如何将上下文结果作为参数传递给 django 中的另一个函数？

Question

我有我的 django 应用程序，它搜索 youtube 并将结果作为字典返回，我将它们呈现在模板中，返回值之一是链接，现在我有一个下载按钮，我希望它的功能是每当你点击按钮它应该获取点击结果的 url，并将其作为参数传递给另一个下载函数。我该如何做到这一点？

这是我的观点.py

def index(request):

if request.method == 'POST':
    query = request.POST['video_name']
    n = 12
    search = SearchVideos(str(query), offset = 1, mode = "json", max_results = n)

    ytresults = search.result()

    result_dict = json.loads(ytresults)        

    context = {
        "result" : result_dict,
    
            
    }
    template_name = "youloader/results.html"
    return render(request, template_name, context)

else:
    query = "no copyright sound"
    n = 12

    search = SearchVideos(str(query), offset = 1, mode = "json", max_results = n)

    index_results = search.result()

    result_dict = json.loads(index_results)

    context = {
        "result" : result_dict
    }

    template_name = "youloader/index.html"
    return render(request, template_name, context)

    

def downloading_video(request):
   try:
   with youtube_dl.YoutubeDL(video_opts) as ydl:
       ydl.download(link)

except:
   pass

这是我的模板.html

<div class="my-4" >
<div style="padding-top: 20px">
<div class="row" >
{%  for result in result.search_result %}
<div class="col-12 col-sm-6 col-md-4 col-lg-4">
<div class="card shadow-sm border-0 my-2">
<img src="{{ result.thumbnails.1 }}" alt="{{ result.channelId }}">

<div class="card-body">
    <h5 class="card-title">{{ result.link }}</h5>
    <div class="d-flex flex-wrap justify-content-between card-subtitle my-2 text-muted small">
        

        <a href="{{ result.link }}" class="text-secondary font-weight-bold">
            <i class="fa fa-tablet mr-1"></i>{{ result.channel }}
        </a>

        <span><i class="fa fa-stopwatch mr-1"></i>{{ result.duration }}</span>

        <span><i class="fa fa-eye mr-1"></i>{{ result.views }}</span>
        <button type="button" class="btn btn-info dropdown-toggle" data-toggle="dropdown">Download</button>

        <div class="dropdown-menu">
            <a class="dropdown-item" href="#">Audio</a>
            <a class="dropdown-item" href="#">Video</a>
        </div>

        <br>

    </div>
</div>
</div>

</div>
{% endfor %}
</div>
</div>
</div>

这是渲染模板的示例。

Answer 1

在索引函数中你可以使用重定向而不是渲染

索引函数：

def index(request):

if request.method == 'POST':
    .
    .
    .
    result_dict = json.loads(index_results)
    link = result_dict.link
    return redirect('youtubedl:download', link ) # first arg is your url route to downloading_video function like 'appname:urlname' and second is the link that coming from result_dic


else:
    .
    .

下载视频功能：

def downloading_video(request, link):
    try:
    with youtube_dl.YoutubeDL(video_opts) as ydl:
        ydl.download(link)

    except:
       pass

这是我认为您应该使用的方式，因为您的下载功能位于单独的模板中