pre_get_posts meta compare not working in admin list tables

  • Resolved Pleiades

    (@pleiades)


    3 years, 10 months ago

    Hi, I hate it when I can’t figure out the code, but I can’t get this to work.

    On my events custom post type admin list table, I added a filter with restrict_manage_posts to allow a user to select beginning and ending dates for the events.

    I’m trying to do a meta query, but despite the selections it returns all posts.

    function filterquery( $admin_query ){
		global $pagenow;
	
	if (
		is_admin()
		&& $admin_query->is_main_query()
		&& in_array( $pagenow, array( 'edit.php' ) )
		&& ( ! empty( $_GET['DateFrom'] ) || ! empty( $_GET['DateTo'] ) )
	) {
	$start = sanitize_text_field( $_GET['DateFrom'] );	
	$end   = sanitize_text_field( $_GET['DateTo'] );	
	
	$custom_meta = array(
		'meta_key'     => 'start_date',
		'meta_value'   => array( $start, $end ), // format: '20200701', '20201231'
		'meta_compare' => 'BETWEEN',
		'type'         => 'DATE',
	);
	
	$admin_query->set( 'meta_query', $custom_meta );
	}
	return $admin_query;
}

    Ive verified that the query vars are properly set: 

    [query] => Array
	(
		[s] => 
		[paged] => 1
		[order] => asc
		[orderby] => menu_order title
		[post_type] => events
		[posts_per_page] => -1

. . . (edited for brevity)

[meta_query] => Array
	(
		[meta_key] => start_date
		[meta_value] => Array
			(
				[0] => 20200701
				[1] => 20201231
			)

		[meta_compare] => BETWEEN
		[type] => DATE
	)

    I would really appreciate some help. Thanks.

Viewing 3 replies - 1 through 3 (of 3 total)
  • Moderator bcworkz

    (@bcworkz)

    3 years, 9 months ago

    You’re using old style query vars within the newer “meta_query”, hence the query vars are not correctly set, they merely reflect your flawed expectations. For example, “meta_key” should just be “key”. Review the docs on using the correct key names for “meta_query”.
    https://developer.wordpress.org/reference/classes/wp_query/
    Find the custom fields section link in the contents. (direct links from here don’t work right due to hidden content on the docs page)

    Thread Starter Pleiades

    (@pleiades)

    3 years, 9 months ago

    @bcworkz Good catch, thanks, but still not working. Query vars now show: 

    [meta_query] => Array
	(
		[key] => start_date
		[value] => Array
			(
				[0] => 20201101
				[1] => 20210531
			)

		[compare] => BETWEEN
		[type] => DATE
	)

    but I’m still getting all records found.

    Thread Starter Pleiades

    (@pleiades)

    3 years, 9 months ago

    Problem solved: meta_query is an array of arrays

    $custom_meta = array(
    array(
        'key'     => 'start_date',
        'value'   => array( $start, $end ), // change to how "event date" is stored
        'compare' => 'BETWEEN',
        'type'    => 'DATE',
    )
);
Viewing 3 replies - 1 through 3 (of 3 total)
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