问题描述

我想选择一个精选的帖子只是通过在编辑屏幕中选中一个复选框,并能够从特定类别检索这些精选文章?

总之我正在寻找:

  • 设置特色帖子

  • 循环播放特定类别的帖子 (不是所有的帖子)

任何帮助?并提前感谢:)

最佳解决方案

您可以按照以下步骤执行此操作:

  1. 在您的帖子中添加自定义元框

  2. 创建使用 save_post 操作保存元数据的函数

  3. 将’meta_key’ 查询参数添加到您正在使用的任何查询。

将它放在你的 functions.php 文件中:

function register_post_assets(){
    add_meta_box('featured-post', __('Featured Post'), 'add_featured_meta_box', 'post', 'advanced', 'high');
}
add_action('admin_init', 'register_post_assets', 1);

function add_featured_meta_box($post){
    $featured = get_post_meta($post->ID, '_featured-post', true);
    echo "<label for='_featured-post'>".__('Feature this post?', 'foobar')."</label>";
    echo "<input type='checkbox' name='_featured-post' id='featured-post' value='1' ".checked(1, $featured)." />";
}

function save_featured_meta($post_id){
    // Do validation here for post_type, nonces, autosave, etc...
    if (isset($_REQUEST['featured-post']))
        update_post_meta(esc_attr($post_id, '_featured-post', esc_attr($_REQUEST['featured-post']))); 
        // I like using _ before my custom fields, so they are only editable within my form rather than the normal custom fields UI
}
add_action('save_post', 'save_featured_meta');

然后在您的模板文件中,使用以下主循环:

    $args = array(
        'meta_key' => '_featured-post', // include underscore prefix in key name
        'meta_value' => 1
    );
    // The number of posts displayed would be determined under Settings->Reading
    query_posts($args);

    if(have_posts()): while(have_posts()): the_post();
        // Do your bidding here

    endwhile; else:

    endif;

仅用于示例目的:对于自定义循环 (如果在一个页面上运行多个循环),则可以使用:

    $args = array(
        'posts_per_page' => 5,
        'meta_key' => '_featured-post',
        'meta_value' => 1
    );

    $featured = new WP_Query($args);

    if ($featured->have_posts()): while($featured->have_posts()): $featured->the_post();
        the_title();
        the_content();
    endwhile; else:

    endif;

参考文献

注:本文内容整合自 Google/Baidu/Bing 辅助翻译的英文资料结果。如果您对结果不满意,可以加入我们改善翻译效果:薇晓朵技术论坛。