BP_User_Query::populate_extras()

Perform a database query to populate any extra metadata we might need.

Description

Different components will hook into the ‘bp_user_query_populate_extras’ action to loop in the things they want.

Source

File: bp-core/classes/class-bp-user-query.php

662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
public function populate_extras() {
    global $wpdb;
 
    // Bail if no users.
    if ( empty( $this->user_ids ) || empty( $this->results ) ) {
        return;
    }
 
    // Bail if the populate_extras flag is set to false
    // In the case of the 'popular' sort type, we force
    // populate_extras to true, because we need the friend counts.
    if ( 'popular' == $this->query_vars['type'] ) {
        $this->query_vars['populate_extras'] = 1;
    }
 
    if ( ! (bool) $this->query_vars['populate_extras'] ) {
        return;
    }
 
    // Turn user ID's into a query-usable, comma separated value.
    $user_ids_sql = implode( ',', wp_parse_id_list( $this->user_ids ) );
 
    /**
     * Allows users to independently populate custom extras.
     *
     * Note that anything you add here should query using $user_ids_sql, to
     * avoid running multiple queries per user in the loop.
     *
     * Two BuddyPress components currently do this:
     * - XProfile: To override display names.
     * - Connections:  To set whether or not a user is the current users friend.
     *
     * @see bp_xprofile_filter_user_query_populate_extras()
     * @see bp_friends_filter_user_query_populate_extras()
     *
     * @since BuddyPress 1.7.0
     *
     * @param BP_User_Query $this         Current BP_User_Query instance.
     * @param string        $user_ids_sql Comma-separated string of user IDs.
     */
    do_action_ref_array( 'bp_user_query_populate_extras', array( $this, $user_ids_sql ) );
 
    // Fetch last_active data from the activity table.
    $last_activities = BP_Core_User::get_last_activity( $this->user_ids );
 
    // Set a last_activity value for each user, even if it's empty.
    foreach ( $this->results as $user_id => $user ) {
        $user_last_activity = isset( $last_activities[ $user_id ] ) ? $last_activities[ $user_id ]['date_recorded'] : '';
        $this->results[ $user_id ]->last_activity = $user_last_activity;
    }
 
    // Fetch usermeta data
    // We want the three following pieces of info from usermeta:
    // - friend count
    // - latest update.
    $total_friend_count_key = bp_get_user_meta_key( 'total_friend_count' );
    $bp_latest_update_key   = bp_get_user_meta_key( 'bp_latest_update'   );
 
    // Total_friend_count must be set for each user, even if its
    // value is 0.
    foreach ( $this->results as $uindex => $user ) {
        $this->results[$uindex]->total_friend_count = 0;
    }
 
    // Create, prepare, and run the separate usermeta query.
    $user_metas = $wpdb->get_results( $wpdb->prepare( "SELECT user_id, meta_key, meta_value FROM {$wpdb->usermeta} WHERE meta_key IN (%s,%s) AND user_id IN ({$user_ids_sql})", $total_friend_count_key, $bp_latest_update_key ) );
 
    // The $members_template global expects the index key to be different
    // from the meta_key in some cases, so we rejig things here.
    foreach ( $user_metas as $user_meta ) {
        switch ( $user_meta->meta_key ) {
            case $total_friend_count_key :
                $key = 'total_friend_count';
                break;
 
            case $bp_latest_update_key :
                $key = 'latest_update';
                break;
        }
 
        if ( isset( $this->results[ $user_meta->user_id ] ) ) {
            $this->results[ $user_meta->user_id ]->{$key} = $user_meta->meta_value;
        }
    }
 
    // When meta_key or meta_value have been passed to the query,
    // fetch the resulting values for use in the template functions.
    if ( ! empty( $this->query_vars['meta_key'] ) ) {
        $meta_sql = array(
            'select' => "SELECT user_id, meta_key, meta_value",
            'from'   => "FROM $wpdb->usermeta",
            'where'  => $wpdb->prepare( "WHERE meta_key = %s", $this->query_vars['meta_key'] )
        );
 
        if ( false !== $this->query_vars['meta_value'] ) {
            $meta_sql['where'] .= $wpdb->prepare( " AND meta_value = %s", $this->query_vars['meta_value'] );
        }
 
        $metas = $wpdb->get_results( "{$meta_sql['select']} {$meta_sql['from']} {$meta_sql['where']}" );
 
        if ( ! empty( $metas ) ) {
            foreach ( $metas as $meta ) {
                if ( isset( $this->results[ $meta->user_id ] ) ) {
                    $this->results[ $meta->user_id ]->meta_key = $meta->meta_key;
 
                    if ( ! empty( $meta->meta_value ) ) {
                        $this->results[ $meta->user_id ]->meta_value = $meta->meta_value;
                    }
                }
            }
        }
    }
}

Changelog

Changelog
Version Description
BuddyPress 1.7.0 Introduced.

Questions?

We're always happy to help with code or other questions you might have! Search our developer docs, contact support, or connect with our sales team.