SOLVED. I missed ID field in field array. $args = array( ‘role’ => ‘author’, ‘order’ => ‘DESC’, ‘orderby’ => ‘post_count’, ‘meta_query’ => array( ‘relation’ => ‘OR’, array( ‘key’ => ‘medical_diagnosis’, ‘compare’ => ‘EXISTS’, ), array( ‘key’ =’gender’, ‘compare’ => ‘EXISTS’, ), ), ‘who’ => ‘authors’, ‘count_total’ => true, ‘fields’ => array( ‘ID’, ‘user_email’, ‘display_name’), ); … Read more
Hooks fire in order so you can lower the priority to make it run after a previous one. However, if it is a different hook altogether you will have to see in which order they run to see which one you need to use. add_action( ‘profile_update’, ‘my_custom_function’, 15, 2 ); function my_custom_function( $user_id ) { … Read more
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WordPress roles are stored in $wpdb->usermeta with wp_capabilities meta key, however, as a serialized array (see maybe_serialize). So you could actually make a group of meta queries, with OR as the relation, to find users with any role of your 4 defined roles, OR users having a certain meta key and value: Please note that … Read more
You should check the pre_get_posts() filter hook.