Question

这是我的代码到目前为止的地方。它将所有与当前帖子共享标签的帖子拉进来，但我无法弄清楚如何以递减的方式对它们进行排序，其中第一个帖子与当前帖子共享最多标签。任何想法将不胜感激！

$tags = wp_get_post_tags( $post->ID, 'Asset' );
if ( $tags ) {
    $tag_ids = array();
    foreach( $tags as $individual_tax ) $tag_ids[] = $individual_tax->term_id;
    $args = array(
        'tag__in' => $tag_ids,
        'post_type' => 'Asset',
        'post__not_in'          => array( $post->ID ),
        'posts_per_page'        => 3,
    );

    $my_query = new wp_query( $args );

    if( $my_query->have_posts() ) {
        while ( $my_query->have_posts() ){
            $my_query->the_post();

            get_template_part( 'asset' );

        }
    }

    wp_reset_query();

}

更新代码：

$tags = wp_get_post_tags( $post->ID, 'Asset' );
if ( $tags )  {
$tag_ids = array();
foreach( $tags as $individual_tax ) $tag_ids[] = $individual_tax->term_id;
$args = array(
    'tag__in' => $tag_ids,
    'post_type' => 'Asset',
    'post__not_in'          => array( $post->ID ),
    'posts_per_page'        => 3,
);

function order_results($post1, $post2) {

    $tags1 = wp_get_post_tags($post1);
    $tags2 = wp_get_post_tags($post1);

    $tag_cnt1 = 0;
    $tag_cnt2 = 0;
    foreach ($tags1 as $tag) {
        if (in_array($tag->term_id, $tag_ids)) {

        }
    }
    foreach ($tags2 as $tag) {
        if (in_array($tag->term_id, $tag_ids)) {
            ++$tag_cnt2;
        }
    }

    return ($tag_cnt1 < $tag_cnt2) ? -1 : 1;

}

$my_query = new wp_query( $args );
$posts = $my_query->posts;

// Sort
usort( $posts, 'order_results');

// Print
foreach ($posts as $post) {                     

    get_template_part( 'asset' );

}

wp_reset_query();

}

最终工作代码：

$tags = wp_get_post_tags( $post->ID, 'Asset' );
if ( $tags )  {
$tag_ids = array();
foreach( $tags as $individual_tax ) $tag_ids[] = $individual_tax->term_id;
$args = array(
    'tag__in' => $tag_ids,
    'post_type' => 'Asset',
    'post__not_in'          => array( $post->ID ),
    'posts_per_page'        => 3,
);

// Sort
function order_results($post1, $post2) {
    //Get current post tags
    global $tag_ids;

    // Reduce down to tags ids
    $tags1 = wp_get_post_tags($post1->ID);
    $tags2 = wp_get_post_tags($post2->ID);
    $tags_num_1 = array();
    $tags_num_2 = array();

    foreach( $tags1 as $tags ) $tags_num_1[] = $tags->term_id;
    foreach( $tags2 as $tags ) $tags_num_2[] = $tags->term_id;

    // Set tag count
    $tag_cnt1 = 0;
    $tag_cnt2 = 0;

    // Count tags
    foreach ($tags_num_1 as $tag) {
        if (in_array($tag, $tag_ids)) {
            $tag_cnt1++;
        }
    }
    foreach ($tags_num_2 as $tag) {
        if (in_array($tag, $tag_ids)) {
            $tag_cnt2++;
        }
    }

    // Order
    return ($tag_cnt1 < $tag_cnt2) ? 1 : -1;

}

$my_query = new wp_query( $args );
$posts = $my_query->posts;

usort( $posts, 'order_results');


// Print
foreach ($posts as $post) {                     
    setup_postdata( $post );

    get_template_part( 'asset' );

}

wp_reset_query();

}

Answer 1

WP_Query不允许您指定任意排序条件。您需要在之后对结果进行排序，例如

function order_results($post1, $post2) {
    $tags1 = wp_get_post_tags($post1->ID);
    $tags2 = wp_get_post_tags($post2->ID);
    $tag_cnt1 = 0;
    $tag_cnt2 = 0;
    foreach ($tags1 as $tag) {
        if (in_array($tag->term_id, $tag_ids)) {

        }
    }
    foreach ($tags2 as $tag) {
        if (in_array($tag->term_id, $tag_ids)) {
            ++$tag_cnt2;
        }
    }
    return ($tag_cnt1 < $tag_cnt2) ? -1 : 1;
}

usort( $my_query->posts, 'order_results');

按照当前帖子的共享标签数量对wordpress帖子进行排序

1 个答案: