WP查询 - 无法按类别slug查询

Question

I have four categories in my Custom Post Type of "projects" that are 'live', 'heal', 'work', and 'play'. I have a few 'projects' posts with no category that I would like to omit from the archive page. In my archive, my query is as follows:

     <?php $args = array( 'post_type' => 'projects','post_status' => 'publish', 'posts_per_page' => $projects_number, 'paged'=> $paged, 'category_name' => 'work,play,live,heal'); ?>
        <?php $wp_query = null; ?>
        <?php $wp_query = new WP_Query( $args ); ?>
            <?php if ( $wp_query->have_posts() ) : ?>

But my archive is not returning any projects. I also tried the 'cat' parameter with id's but no avail there either. What am I missing?

Answer 1

For anyone who comes across this...the 'category' argument needed to be in its own array