Hi,
I have written a plugin to create a custom post-type. I want to set the default sort-order for posts of this custom type when they display on their own archive page.
I've managed to get them to sort by one custom meta key value, but I need them to also be sorted by the value of a second meta key.
I want posts to be sorted by year of graduation (it's a university alumni site), then by first name.
I can't seem to get it to work, though I've found lots of posts where others are failing to do the same thing.
Here's the code I have so far:
public function majal_pre_get_posts_alumni_sortorder( $query ) {
if ( !is_admin() && $query->is_main_query() && $query->is_post_type_archive( 'majal_alumni' ) && !isset( $_GET['orderby'] ) ) {
$query->set( 'meta_key', '_majal_alumni_alumnus_graduationyear' );
$query->set( 'orderby', 'meta_value' );
$query->set( 'order', 'DESC' );
$query->set( 'meta_query', array(
array(
'key' => '_majal_alumni_alumnus_namesecond',
'orderby' => 'meta_value',
'order' => 'ASC'
)
));
$query->set( 'posts_per_page', '16' );
$query->set( 'paged', true );
}
}This function is called by the 'pre_get_posts' filter hook. I know it's getting called correctly, as my posts are being correctly sorted on '_majal_alumni_alumnus_graduationyear', but they're not then being sorted by '_majal_alumni_alumnus_namesecond'.
I want posts with identical values for graduationyear to be grouped together, but then sorted by namesecond.
Anyone any ideas?
