Wordpress，过滤主页上的消息 [英] Wordpress, filter messages on main page

问题描述

如何在我的网站的主页上隐藏某个类别的帖子和某个 ID?我需要像过滤器这样的解决方案:

How can I hide posts from some category with some ID from main page of my site? I need solution like filter:

function exclude_post($query) {
    if ($query->is_home) {
        ...
    }

    return $query;
}

add_filter('pre_get_posts', 'exclude_post');

有人能举个例子吗?

推荐答案

Use $query->set( $query_var, $value ); 其中 $query_var 是您要添加的变量/在查询中更新.所以把它放在你的条件中:

Use $query->set( $query_var, $value ); where $query_var is the variable you want to add/update in query. So put this inside your condition:

// 1st parameter is the query variable the 2nd is its value, in this case an array of category IDs
$query->set( 'category__not_in', array( 2, 6 ) );

记住对 $query->is_main_query() 进行条件检查是一种很好的做法.pre_get_posts 是一个动作钩子，所以你必须将 add_filter 更改为 add_action.动作钩子不会返回值，过滤器会.

Remember is good practice put in condition a check to $query->is_main_query(). pre_get_posts is an action hook so you have to change add_filter to add_action. An action hook doesn't return a value, a filter does.

示例

function exclude_post( $query ) {
    if ( $query->is_home() && $query->is_main_query() ) {
      $query->set( 'category__not_in', array( 2, 6 ) );
    }
}

add_action('pre_get_posts', 'exclude_post');

更新

根据问题出现的新详细信息，为了排除提要流中但不在类别存档中的某些帖子，条件检查可能如下所示:

According to the new details emerging by the question,in order to exclude some posts in feeds stream, but not in category archive, the conditional check might look like:

if( $query->is_feed() && !$query->is_archive() )

或

if( $query->is_feed() && !$query->is_category() )

希望有帮助！

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