Wordpress pre_get_posts 和 date_query [英] Wordpress pre_get_posts and date_query

问题描述

我正在尝试使用 pre_get_posts 挂钩来更改年度存档结果，以便它向我显示整个学年的帖子.我使用的是 Wordpress 3.9.2 版.

I'm trying to use the pre_get_posts hook to change the yearly archive results so that it shows me posts over the academic year instead. I'm using Wordpress version 3.9.2.

function get_posts_by_academic_year($query) {
    if ($query->is_main_query() && $query->is_year()) {
            $query->set('date_query', array(
                array(
                    'after' => array(
                            'year' => $year
                            , 'month' => 9
                            , 'day' => 1
                        ),
                    'before' => array(
                            'year'  => $year+1
                            , 'month' => 8
                            , 'day'   => 31
                        ),
                    'inclusive' => true
                ),
            )
        );
    }
}
add_action('pre_get_posts', 'get_posts_by_academic_year');

我只得到一个 404 页面并且没有错误帮助我调试它.当谈到 Wordpress 我不经常使用它时，你必须原谅我的无知.关于我做错了什么或是否有更好的方法来做这件事的任何想法?

I get nothing but a 404 page and no errors to help me debug this. You'll have to excuse my ignorance when it comes to Wordpress I don't use it very often. Any ideas on what I'm doing wrong or whether there's a better way of doing this?

推荐答案

原因是你的 $year 变量为空...

The reason will be that your $year variable is empty...

从传递给函数的 $query 变量中填充它...

Populate it from the $query variable passed to the function...

$year = get_query_var('年');

$year = get_query_var( 'year' );

出于某种原因，当查询返回零结果时，我收到了 404 页面错误......而不是查询有问题.

For some reason i got a 404 page error when the query return zero results... rather than there being a problem with the query.

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