Tax_query 在 wordpress 中不起作用。怎么解决？

Question

我制作了一个页面模板，我可以在其中过滤一些帖子。如果你做一个正常的 WP_Query 一切都很好。但如果我使用 tax_query，它不会显示任何帖子。

为了注册帖子类型和分类，我使用插件“cptui”。

常规的 WP_Query 请求：

$query = new WP_Query(array(
    'post_type' => $post->post_name,
    'post_status' => 'publish',
    'posts_per_page' => 6,
    'paged' => $paged,
                                    
));

if(!$_POST) { //If not filtered ... then show all
    if($query->have_posts()): while ($query->have_posts()) : $query->the_post();
        echo "<a href='".get_post_permalink()."'><div style='box-shadow: 0 0 15px 0 rgba(0,0,0,.05); padding: 50px; width: 100%; margin: 5px; '>";
        echo "<h5>" . $query->post->post_title . "</h5>";
        echo "<p>" . get_field( "plaats" ) . '-' . get_term(get_field('dienstverbanden'))->name . "</p>";
        echo "</div></a>";
    endwhile; endif;
}

我阅读了其他帖子，他们说我可以使用 php echo $GLOBALS['query']->request; 来查看 mysql 查询是什么。

我的查询是：

SELECT SQL_CALC_FOUND_ROWS wp_posts.ID 
FROM wp_posts 
WHERE 1 = 1 
  AND wp_posts.post_type = 'vacature' 
  AND ((wp_posts.post_status = 'publish')) 
ORDER BY wp_posts.post_date DESC 
LIMIT 6, 6

现在是带有 tax_query 的请求。

tax_query WP_Query 请求：

$query = new WP_Query(array(
    'post_type' => $post->post_name,
    'post_status' => 'publish',
    'posts_per_page' => 6,
    'paged' => $paged,
    'tax_query' => array(
        array(
           'taxonomy' => 'provincie',
            'field'    => 'slug',
            'terms'    => 'noord-brabant',
            'include_children'  => 0
        ),
    ),
));

if(!$_POST) { //If not filtered ... then show all
    if($query->have_posts()): while ($query->have_posts()) : $query->the_post();
        echo "<a href='".get_post_permalink()."'><div style='box-shadow: 0 0 15px 0 rgba(0,0,0,.05); padding: 50px; width: 100%; margin: 5px; '>";
        echo "<h5>" . $query->post->post_title . "</h5>";
        echo "<p>" . get_field( "plaats" ) . '-' . get_term(get_field('dienstverbanden'))->name . "</p>";
        echo "</div></a>";
    endwhile; endif;
}

我现在得到的查询是：

SELECT SQL_CALC_FOUND_ROWS wp_posts.ID 
FROM wp_posts 
LEFT JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id) 
WHERE 1 = 1 
  AND (wp_term_relationships.term_taxonomy_id IN (3)) 
  AND wp_posts.post_type = 'vacature' 
  AND ((wp_posts.post_status = 'publish')) 
GROUP BY wp_posts.ID 
ORDER BY wp_posts.post_date DESC 
LIMIT 6, 6  

我没有收到回复。

你知道有什么解决办法吗？

模板的完整代码：

<div id="page-<?php the_ID(); ?>" <?php post_class(); ?>>
                            <?php the_content(); ?>
                            <?php   
                                global $post;  

                                $paged = ( get_query_var('paged')) ? get_query_var('paged') : 1;

                                $query = new WP_Query(array(
                                    'post_type' => $post->post_name,
                                    'post_status' => 'publish',
                                    'posts_per_page' => 6,
                                    'paged' => $paged,
                                    'tax_query' => array(
                                        array(
                                            'taxonomy' => 'provincie',
                                            'field' => 'slug',
                                            'terms' => array( 'noord-brabant')
                                        )
                                    )
                                ));

                                // echo $GLOBALS['query']->request;

                                if(!$_POST) { //If not filtered ... then show all
                                    if($query->have_posts()): while ($query->have_posts()) : $query->the_post();
                                        echo "<a href='".get_post_permalink()."'><div style='box-shadow: 0 0 15px 0 rgba(0,0,0,.05); padding: 50px; width: 100%; margin: 5px; '>";
                                        echo "<h5>" . $query->post->post_title . "</h5>";
                                        echo "<p>" . get_field( "plaats" ) . '-' . get_term(get_field('dienstverbanden'))->name . "</p>";
                                        echo "</div></a>";
                                    endwhile; endif;
                                }
                                else { //now its filtered
                                    $null = true;
                                    if($query->have_posts()): while ($query->have_posts()) : $query->the_post();

                                        $filterconditions = []; //hier komen alle filtercondities in
                                    
                                        $keys = array_keys($_POST);
                                        foreach($keys as $key) {
                                            if($_POST[$key] == "on") {
                                                $filter = explode("_",$key);
                                                $field = $filter[0];
                                                $filter = $filter[1];
                                                
                                                $taxonomy = get_field( $field );
                                                $term = get_term_by('term_id', $taxonomy, $field);
                                                array_push($filterconditions, '"' . $filter . '"' . '==' . '"' . $term->name . '"');
                                            }
                                        };

                                        $filterconditions = implode('&&', $filterconditions);
                                        // echo $filterconditions;
                                        if(eval("return $filterconditions;")) {
                                            $null = false;
                                            echo "<a href='".get_post_permalink()."'><div style='box-shadow: 0 0 15px 0 rgba(0,0,0,.05); padding: 50px; width: 100%; margin: 5px; '>";
                                            echo "<h5>" . $query->post->post_title . "</h5>";
                                            echo "<p>" . get_field( "plaats" ) . '-' . get_term(get_field('dienstverbanden'))->name . "</p>";
                                            echo "</div></a>";
                                        }
                                    endwhile; endif;
                                    if($null) {
                                        echo "Sorry, er zijn geen vacatures gevonden met deze filters";
                                    }
                                }

                                $total_pages = $query->max_num_pages;
                                if ($total_pages > 1 && !$null) {
                                    $current_page = max(1, get_query_var('paged'));
                                    echo paginate_links(array(
                                        'base' => get_pagenum_link(1) . '%_%',
                                        'format' => '/page/%#%',
                                        'current' => $current_page,
                                        'total' => $total_pages,
                                        'prev_text'    => __('« prev'),
                                        'next_text'    => __('next »'),
                                    ));
                                } 

                                wp_reset_query();
                            ?>
                        </div>

Answer 1

$args=array(
'post_type' => 'your_post_type',
'post_status' => 'publish',
'orderby' => 'title',
'order' => 'DESC',
'posts_per_page' => 6,
'tax_query' => array(
array(
'taxonomy' => 'provincie',
'field' => 'slug',
'terms' => array( 'noord-brabant')
)
)
);

$result = new WP_Query( $args );

// The Loop
if ( $result->have_posts() )  {
while ( $result->have_posts() ) {
$result->the_post();

// this is your loop

}

} else {
// nothing
}

可以试试上面的代码

Answer 2

您可以使用以下代码获取简单的自定义帖子类型列表：

$args = array(  
        'post_type' => 'services',
        'post_status' => 'publish',
        'posts_per_page' => 6, 
        'orderby’ => 'title', 
        'order’ => 'ASC', 
    );

    $loop = new WP_Query( $args ); 

    while ( $loop->have_posts() ) : $loop->the_post(); 
        print the_title(); 
        the_excerpt(); 
    endwhile;

    wp_reset_postdata(); 

放置您的自定义帖子类型名称以检索帖子并根据您的需要更改 while 循环

Answer 3

好的，您可以使用 get post 方法代替 WP Query：

$posts_array = get_posts(
        array(
            'posts_per_page' => 6,
            'post_type' => $post->post_name, // Get POST TYPE FROM $GLOBAL POST
            'tax_query' => array(
                array(
                    'taxonomy' => 'provincie',
                    'field' => 'slug',
                    'terms' => 'noord-brabant',
          )
        )
    )
);