Post Object: Query by page-template issue?

• meneldil

• May 2, 2017 at 6:50 pm

Hi everyone,

I encounter a problem when I want to filter the results in the back office.
Here is my example, I have parent and child pages:
– Page 1
— Subpage 1-1 (Template “Book”)
— Subpage 1-2 (Template “Book”)
– Page 2
— Subpage 2-1 (Template “Book”)
— Subpage 2-2 (Template “Book”)
– Page 3 (Template “Book”)

And here is my code:

function my_post_object_query($args, $field, $post_id) {
    $args =  array(
			'post_type'   => 'page',
			'meta_query'  => array(
				'relation'  => 'AND',
				array(
					'key'     => '_wp_page_template',
					'value'   => 'templates/book.php',
					'compare' => '='
				)
			)
		);
    return $args;
}
add_filter('acf/fields/post_object/query/name=book_obj', 'my_post_object_query', 10, 3);

I have in my results only “Page 3”, basically, no “child pages” are displayed.
Do you know why?

EDIT: If I add “post_parent” with the ID of a parent page it works, but I do not want to put IDs hard… Is this a plugin bug?

• meneldil

• May 5, 2017 at 4:29 am

Up. 🙂

• meneldil

• November 30, 2020 at 9:28 pm

I come to give the solution for people who have the same problem.
I was coming to overwrite the arguments instead of adding them to the array.

It is necessary to do as follows:
$args['my_parameter'] = 'my_value';