如何避免在Django中重复相同的代码块？ [英] How to avoid repeating same code block in Django?

问题描述

我的4个函数中有相同的代码块，有什么办法可以避免重复相同的代码块？

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

这里是相同的代码块：

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...

    })

这里是function1：

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
    })

这里是function2：

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,

    })

有没有朋友知道如何避免呢？

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

推荐答案

非常感谢@ Lemayzeur！

Thanks @ Lemayzeur so much!

我终于通过使用{％include news_rank.html％} + context_processors解决了这个问题。它为我节省了很多代码。

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

我今天学习了如何创建自定义上下文处理器。

I learned how to Create custom context processor today.

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