php - Query all posts of a custom taxonomy term

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I am using this code on single.php, This query working well but when post has parent term (that parent also have child terms) this give output all posts of parent & children

But in this condition I want it to query only parent term posts.

<?php 
$post_terms = wp_get_object_terms($post->ID, 'serial', array('fields'=>'ids'));
    $args = array(
        'post_type' => 'post',
        'post_status' => 'publish',
        'order'    => 'ASC',
        'posts_per_page' => -1,
        'tax_query' => array(
            array(
                'taxonomy' => 'serial',
                'field' => 'id',
                'terms' => $post_terms,
                ),
        )
    );
    $the_query = new WP_Query( $args );
    if ( $the_query->have_posts() ) {
        while ( $the_query->have_posts() ) {
        $the_query->the_post();
            the_title();
        }
    } else {
    }
wp_reset_postdata();
?>

How to query posts according to attached term, Only attached term (not to check for child terms when post have parent term)?

I am using this code on single.php, This query working well but when post has parent term (that parent also have child terms) this give output all posts of parent & children

But in this condition I want it to query only parent term posts.

<?php 
$post_terms = wp_get_object_terms($post->ID, 'serial', array('fields'=>'ids'));
    $args = array(
        'post_type' => 'post',
        'post_status' => 'publish',
        'order'    => 'ASC',
        'posts_per_page' => -1,
        'tax_query' => array(
            array(
                'taxonomy' => 'serial',
                'field' => 'id',
                'terms' => $post_terms,
                ),
        )
    );
    $the_query = new WP_Query( $args );
    if ( $the_query->have_posts() ) {
        while ( $the_query->have_posts() ) {
        $the_query->the_post();
            the_title();
        }
    } else {
    }
wp_reset_postdata();
?>

How to query posts according to attached term, Only attached term (not to check for child terms when post have parent term)?

• php
• posts
• functions
• custom-taxonomy
• terms

Share Improve this question asked Sep 13, 2019 at 19:20 F.AF.A 2555 bronze badges 1

• Just wanted to say that you should use 'field' => 'term_id' in tax_query. – freejack Commented Sep 13, 2019 at 20:34

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1 Answer 1

Sorted by: Reset to default 1

I believe your issue is with understanding the nature of posts' hierarchy vs pages' hierarchy. A page is a type of "post". It can have hierarchical structure.

Posts, by default, do not have hierarchy. So, you would not be able to get post-parents without their children, because the system does not recognize a hierarchy. This is true unless you modify the structure with a custom function, or install a specific plugin to add hierarchical structure to Posts.

If you really need that hierarchy, you could try this StackOverflow answer to add a hierarchy. This will permit what you are trying to accomplish.

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