How to avoid repeating same code block in Django?

问题

I have the same code block in 4 of my functions,is any way that can avoid repeating the same code block?

Here is the same code block:

def function_name():
    ...some code...
    hot_news_48h = h_mostViewed(48, News, '-pv')
    hot_news_1w = w_mostViewed(1, News, '-pv')
    ...some code...

return render(request, "template_name.html", {
         ...some code...
        'hot_news_48h': hot_news_48h,
        'hot_news_1w': hot_news_1w,

         ...some code...

    })

Here is function1:

def newsDetailView(request, news_pk):
    news = get_object_or_404(News, id=news_pk)
    tags = news.tag.annotate(news_count=Count('news'))
    News.objects.filter(id=news_pk).update(pv=F('pv') + 1)

    hot_news_48h = h_mostViewed(48, News, '-pv')
    hot_news_1w = w_mostViewed(1, News, '-pv')

    relative_news = News.objects.filter(tag__id__in=news.tag.all()).exclude(id=news_pk)[:6]

    return render(request, "news_detail.html", {
        'news': news,
        'tags': tags,

        'hot_news_48h': hot_news_48h,
        'hot_news_1w': hot_news_1w,

        'relative_news': relative_news
    })

Here is function2:

def tagNewsList(request, tag_pk):
    tag = get_object_or_404(Tag, pk=tag_pk)
    news_list = News.objects.filter(tag=tag)

    hot_news_48h = h_mostViewed(48, News, '-pv')
    hot_news_1w = w_mostViewed(1, News, '-pv')


    return render(request, "tags_list.html", {
        'news_list': news_list,
        'tag': tag,

        'hot_news_48h': hot_news_48h,
        'hot_news_1w': hot_news_1w,

    })

Any friend know how to avoid it?Thank you so much!

回答1:

Thanks @ Lemayzeur so much!

I finally solved the issue by using {% include news_rank.html %} + context_processors.It saves me a lot of code.

I learned how to Create custom context processor today.

来源：https://stackoverflow.com/questions/51903751/how-to-avoid-repeating-same-code-block-in-django