我有一个模仿this article的ajax发布过滤器。我可以根据需要大致上运行它,但是我希望能够按类别过滤讲座(实际上是一个子类别,但我不知道这是否有区别)。

我有用于演讲者的过滤器和用于最新讲座的过滤器,这些过滤器工作正常,但是当我尝试运行系列过滤器时(带有elseif(isset($ set($ _ POST ['series_name'])))的部分),我没有任何反应。如果尝试先运行系列过滤器,它将触发一次,但随后将无响应。如果我尝试先运行任何其他过滤器,它们将可以正常工作,但随后系列过滤器将完全无法启动。我认为我的问题是在设置$ _POST ['series_name']时如何处理WP_Query的$ args。

任何指针将不胜感激,谢谢!

这是我的PHP:
    

function lectures_filter_function(){
$i = 1;
$args = array(
    'post_type' => 'lectures',
    'orderby' => 'meta_value',
    'meta_key' => 'lecture_date',
    'order' => 'DESC'
);

if( isset( $_POST['speaker'] ) )
{
    $args['meta_query'][] = array(
        'key' => 'speaker',
        'value' => $_POST['speaker'],
    );
}
elseif( isset( $_POST['series_name'] ) )
{
    //*This is how I wanted to code it but it didn't work at all*
    // $args['tax_query'] = array(
    //      array(
    //          'taxonomy' => 'category',
    //          'value' => 'category_name',
    //          'terms' => $_POST['series_name']
    //      )
    //  );

    //This is how I at least got it to fire once per screen load.
    $args = array(
                'category_name' => $_POST['series_name'],
                'post_type' => 'lectures',
                'orderby' => 'meta_value',
                'meta_key' => 'lecture_date',
                'order' => 'DESC'
        );
}


    $the_query = new WP_Query( $args );
    $postlist = $the_query->post_count;

    // The Query

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

            // print_r($the_query);

            if($i % 2 == 1){
                echo '<div class="row">';
            }
        ?>

        <div class="large-6 columns lecture-tile">
            <div class="lecture-overlay-container">
                <a href="<?php the_permalink();?>">
                    <div class="lecture-tile-overlay"></div>
                    <?php the_post_thumbnail('full');?>
                    <div class="lecture-tile-info">
                        <h3><?php the_title();?></h3>

<?php
    $current_id = get_the_id();
    $lecture_type = get_post_meta($current_id, 'lecture_type', true);
    if($lecture_type == "Single"){
        $lecture_descriptor = "lecture";
    }elseif ($lecture_type == 'Series') {
        $series_name = get_post_meta($current_id, 'series_name', true);
        $lecture_descriptor = $series_name;
    }elseif ($lecture_type == 'Event') {
        $event_name = get_post_meta($current_id, 'event_name', true);
        $lecture_descriptor = $event_name;
    }
?>
                        <p><?php echo $lecture_descriptor; ?></p>
                    </div>
                </a>
            </div>
        </div>

        <?php
                if($i % 2 == 0 || $i == $num_posts){
                    echo '</div>';
                }
                $i++;
        }
        /* Restore original Post Data */
        wp_reset_postdata();
    } else {
        // no posts found
        echo "No matching lectures found...";
    }
die();


}

add_action('wp_ajax_myfilter', 'lectures_filter_function');
add_action('wp_ajax_nopriv_myfilter', 'lectures_filter_function');

最佳答案

尝试这个

$args = array(
'post_type' => 'post',
'tax_query' => array(
    'relation' => 'AND',
    array(
        'taxonomy' => 'movie_genre',
        'field'    => 'slug',
        'terms'    => array( 'action', 'comedy' ),
    ),
    array(
        'taxonomy' => 'actor',
        'field'    => 'term_id',
        'terms'    => array( 103, 115, 206 ),
        'operator' => 'NOT IN',
    ),
),
);
$query = new WP_Query( $args );

关于javascript - 带有WP_Query的Ajax Post过滤器仅对Category触发一次,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/40734772/

10-12 12:47
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