will_paginate 默认显示最后一页(保持时间顺序) [英] will_paginate show the last page by default (keeping chronological order)

问题描述

我正在构建一个索引页面，我需要在其中显示具有日期的结果，按时间顺序排列(从最早的日期到最新的日期)，但默认情况下我需要始终显示最后一页.

I'm building an index page where I need to display results which have a date, ordered chronologically (from the earliest date to the newest one), but I need to always show the last page by default.

我不能对日期使用 DESC 命令，因为它会破坏我需要这个的全部目的 =(.

I can't use a DESC order for the date because it would defeat the whole purpose of what I need this for =(.

TL;DR:我需要显示一个分页的日志列表，按日期升序排序，但从最后一页开始.这可以用 will_paginate 实现吗?谢谢！

推荐答案

这是我最终得到的解决方案:

This is the solution I finally arrived to:

if params[:page]
    @collection = @q.result(distinct: true).paginate(:page => params[:page], :per_page => 30)
else
    last_page = @q.result(distinct: true).paginate(:page => params[:page], :per_page => 30).total_pages
    @collection = @q.result(distinct: true).paginate(:page => last_page, :per_page => 30)
end

它并不花哨，它需要一些重构，也许可以使用记忆来避免两次调用 paginate 方法，但嘿它有效.如果您尝试直接访问某个页面，它会照常呈现，但如果您不指定页面，则默认将您带到最后一个页面.

It's not fancy, it needs some refactoring and perhaps can use memoization to avoid calling the paginate method twice, but hey it works. If you are trying to access a page directly, it is rendered as usual, but if you don't specify a page, you are taken to the last page by default.

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