Wordpress 查询由 acf-field 以标题排序

Question

我需要有关 Wordpress 查询的帮助以获取帖子。

我有一个 ACF-numeric-Field 叫做“年”。我需要一个查询来获取输入年份的帖子，年份作为标题回显。

有点像

1925

Post一个
PostB
PostD

1926

Post C
PostE

这是我到目前为止获得的设置“年份”并按其排序的帖子。

<?php 
$args = array(
    'numberposts'   => -1,
    'post_type'     => 'artikel',
    
    'meta_query'    => array(
        'relation'      => 'AND',
        array(
            'key'       => 'year',
            'compare'   => 'EXISTS'
        ),
        array(
            'key'       => 'year',
            'value'     => 1900,
            'type'      => 'NUMERIC',
            'compare'   => '>'
        )
    )
);

$the_query = new WP_Query( $args );
?>
<?php if( $the_query->have_posts() ): ?>

谁能帮我如何把年份作为标题？

Answer 1

你可以试试这个：

<?php 
$args = array(
    'posts_per_page' => -1,
    'post_type'     => 'artikel',
    'meta_key'      => 'year',
    'orderby'       => 'meta_value_num',
    'order' => 'DESC',
);

$the_query = new WP_Query( $args );
?>
<?php if( $the_query->have_posts() ): ?>

希望能成功！

Answer 2

如果 $the_query 有值，你可以这样做

// assuming that all posts are sorted by year. 1925, 1926, 1930 etc...
$the_query = new WP_Query($args);

// will contain all posts sorted by year
$posts_by_year = [];

// start looping through the posts
if ($the_query->have_posts()) {
    while ($the_query->have_posts()) {
        $the_query->the_post();

        // get year ACF field
        $year = get_field('year');

        // check if $posts_by_year already has year, if not create and add the post, if exists just add the post
        if (isset($posts_by_year[$year])) {
            $posts_by_year[$year][] = get_post();
        } else {
            $posts_by_year[$year] = [
                get_post()
            ];
        }

    }
}
wp_reset_postdata();

// check if we have any posts
if (!empty($posts_by_year)) {
    foreach ($posts_by_year as $year => $posts) {
        echo '<div class="year-block">';
        echo   '<strong class="year-title">' . $year . '</strong>';
        echo   '<ul class="posts-by-year">';

        foreach ($posts as $post) {
            echo '<li>';
            echo   '<strong class="post-title">' . $post->post_title . '</strong>';
            echo '</li>';
        }

        echo   '</ul>';
        echo '</div>';
    }
}

当然可以根据需要更改 html 格式

Wordpress 查询由 acf-field 以标题排序

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