我已经为我的帖子创建了一个名为“Regions”的自定义分类法我已经用这些区域标记了2个帖子。我想做的是列出任何带有区域标记的帖子，但由于某些原因，它不起作用。下面是我注册自定义分类法的函数：

function region_taxonomy() {

    $labels = array(
        \'name\' => _x( \'Regions\', \'taxonomy general name\' ),
        \'singular_name\' => _x( \'Region\', \'taxonomy singular name\' ),
        \'search_items\' =>  __( \'Search Regions\' ),
        \'all_items\' => __( \'All Regions\' ),
        \'parent_item\' => __( \'Parent Region\' ),
        \'parent_item_colon\' => __( \'Parent Region:\' ),
        \'edit_item\' => __( \'Edit Region\' ), 
        \'update_item\' => __( \'Update Region\' ),
        \'add_new_item\' => __( \'Add New Region\' ),
        \'new_item_name\' => __( \'New Region Name\' ),
        \'menu_name\' => __( \'Regions\' )
    );

    register_taxonomy(\'regions\',array(\'post\'), array(
        \'hierarchical\' => true,
        \'labels\' => $labels,
        \'show_ui\' => true,
        \'show_admin_column\' => true,
        \'query_var\' => true,
        \'rewrite\' => array( \'slug\' => \'region\' )
    ));

}

add_action(\'init\', \'region_taxonomy\', 0);

下面是WP_Query 从我的页面模板：

<?php 
    $args = array( 
        \'orderby\' => \'date\',
        \'post_type\' => \'post\',
        \'tax_query\' => array(
            array(
                \'taxonomy\' => \'regions\'
            ),
        ),
        \'posts_per_page\' => \'-1\'
    );
    $the_query = new WP_Query( $args );
?>
<?php if ( $the_query->have_posts() ) : while ( $the_query->have_posts() ) : $the_query->the_post(); ?>
    <?php the_content(); ?>
<?php endwhile; else: ?> 
    <p>Sorry, there are no posts to display</p> 
<?php endif; ?>
<?php wp_reset_query(); ?>

不幸的是，这是返回没有帖子，即使我有2个帖子标记了一个地区。有什么想法吗？

$terms = get_terms( array(
    \'taxonomy\' => \'regions\',
    \'fields\'   => \'id=>slug\',
) );

$args = array( 
    \'orderby\'        => \'date\',
    \'post_type\'      => \'post\',
    \'post_status\'    => \'publish\',
    \'posts_per_page\' => -1,
    \'tax_query\'      => array(
        array(
            \'taxonomy\' => \'regions\',
            \'field\'    => \'term_id\',
            \'terms\'    => array_keys( $terms ),
        ),
    ),
);

$the_query = new WP_Query( $args );

if ( $the_query->have_posts() ) {
    while ( $the_query->have_posts() ) {
        $the_query->the_post();
        the_content();
    }
    wp_reset_postdata();
} else {
    echo \'<p>Sorry, there are no posts to display</p>\';
}

<?php
    $regions_terms = get_terms(\'regions\');
    $regions = array();
    foreach ($regions_terms as $regions_term) {
        $regions[] = $regions_term->slug;
    }
    $args = array( 
        \'orderby\' => \'date\',
        \'tax_query\' => array(
           array(
              \'taxonomy\' => \'regions\',
              \'field\' => \'slug\',
              \'terms\' => $regions
           )
        ),
        \'posts_per_page\' => \'3\'
    );
    $the_query = new WP_Query( $args );
?>