get_results( "SELECT * FROM $wpdb->users users INNER JOIN $wpdb->usermeta usermeta ON usermeta.user_id = users.ID AND usermeta.meta_key = '" . $wpdb->get_blog_prefix( $blog_id ) . "user_level' AND usermeta.meta_value != 0 WHERE ( users.user_login LIKE '%$search_term%' OR users.display_name LIKE '%$search_term%' OR users.user_email LIKE '%$search_term%' ) ORDER BY users.display_name" ) )
&& is_array( $authors ) ) {
// build search results
$results = array();
foreach ( $authors as $author ) {
$results[] = array(
'user_id' => $author->ID,
'user_login' => $author->user_login,
'display_name' => $author->display_name,
'email' => $author->user_email,
'value' => $author->ID,
'label' => $author->display_name,
);
}
// "return" results
echo json_encode( $results );
}
}
die();
}
/*
* Gets gravatar for selected user.
*/
add_action( 'wp_ajax_authors_autocomplete_mb_get_user_gravatar', 'ajax_authors_autocomplete_mb_get_user_gravatar' );
function ajax_authors_autocomplete_mb_get_user_gravatar() {
if ( $user_id = ( isset( $_POST[ 'authors_autocomplete_mb_user_id' ] ) && !empty( $_POST[ 'authors_autocomplete_mb_user_id' ] ) ) ? $_POST[ 'authors_autocomplete_mb_user_id' ] : NULL ) {
$gravatar_size = ( isset( $_POST[ 'authors_autocomplete_mb_gravatar_size' ] ) && !empty( $_POST[ 'authors_autocomplete_mb_gravatar_size' ] ) && $_POST[ 'authors_autocomplete_mb_gravatar_size' ] > 0 ) ? $_POST[ 'authors_autocomplete_mb_gravatar_size' ] : 32;
// "return" gravatar
echo get_avatar( $user_id, $gravatar_size );
}
die();
}
/*
* Figures out if what the user entered is an actual user.
* If user exists, returns user info.
*/
add_action( 'wp_ajax_authors_autocomplete_mb_if_user_exists_by_value', 'ajax_authors_autocomplete_mb_if_user_exists_by_value' );
function ajax_authors_autocomplete_mb_if_user_exists_by_value() {
global $wpdb;
if ( $user_value = ( isset( $_POST[ 'authors_autocomplete_mb_user_value' ] ) && !empty( $_POST[ 'authors_autocomplete_mb_user_value' ] ) ) ? $_POST[ 'authors_autocomplete_mb_user_value' ] : NULL ) {
if ( $author = $wpdb->get_row( "SELECT DISTINCT * FROM $wpdb->users users WHERE ( users.user_login LIKE '$user_value' OR users.display_name LIKE '$user_value' OR users.user_email LIKE '$user_value' )" ) )
echo json_encode( $author );
echo false;
die();
}
}
/*
* Remove the core "author" meta box and add our
* custom "author" meta box.
*/
add_action( 'add_meta_boxes', 'authors_autocomplete_mb_add_meta_boxes', 1, 2 );
function authors_autocomplete_mb_add_meta_boxes( $post_type, $post ) {
global $wp_meta_boxes;
if ( ( $screen = get_current_screen() )
&& ( $post_type == $screen->id )
&& post_type_supports( $post_type, 'author' )
&& ( $post_type_object = get_post_type_object( $post_type ) )
&& ( is_super_admin() || current_user_can( $post_type_object->cap->edit_others_posts ) ) ) {
/*
* We can't simply remove_meta_box() because WordPress
* doesn't like us removing/replacing core WordPress
* meta boxes. If you use remove_meta_box( 'authordiv' ), it
* sets the box in $wp_meta_boxes as "false" which blocks us
* from using add_meta_box( 'authordiv' ).
*/
foreach( $wp_meta_boxes as $mb_post_type => $mb_post_type_context ) {
foreach( $mb_post_type_context as $context => $mb_post_type_priority ) {
foreach( $mb_post_type_priority as $priority => $mb_post_type_meta_boxes ) {
foreach( $mb_post_type_meta_boxes as $mb_id => $mb ) {
if ( 'authordiv' == $mb_id )
unset( $wp_meta_boxes[ $mb_post_type ][ $context ][ $priority ][ $mb_id ] );
}
}
}
}
/*
* Time to add our own author meta box.
*/
add_meta_box( 'authors_autocomplete_mb_authordiv', __( 'Author' ), 'authors_autocomplete_mb_post_author_meta_box', $post_type, 'normal', 'core' );
}
}
/*
* Print our custom "author" meta box.
*/
function authors_autocomplete_mb_post_author_meta_box( $post, $metabox ) {
global $user_ID;
if ( ( $post_type = ( isset( $post->post_type ) && ! empty( $post->post_type ) ) ? $post->post_type : NULL )
&& post_type_supports( $post_type, 'author' )
&& ( $post_type_object = get_post_type_object( $post_type ) )
&& ( is_super_admin() || current_user_can( $post_type_object->cap->edit_others_posts ) ) ) {
// get selected author
$author = isset( $post->post_author ) ? get_user_by( 'id', $post->post_author ) : get_user_by( 'id', $user_ID );
?>
'authors',
'name' => 'post_author_override',
'selected' => ( isset( $author ) && isset( $author->ID ) ) ? $author->ID : $user_ID,
'include_selected' => true
)); ?>
You can search for the author by display name, login, or e-mail address.