function get_author_avatar()
{
global $default;
$avatar = '';
if (class_exists('author_image')) {
$avatar = author_image::get();
}
if ($avatar == '') {
if (in_the_loop()) {
$author_id = get_the_author_ID();
} elseif (is_singular()) {
global $wp_the_query;
$author_id = $wp_the_query->posts[0]->post_author;
} elseif (is_author()) {
global $wp_the_query;
$author_id = $wp_the_query->get_queried_object_id();
}
$author = get_userdata($author_id);
if (!empty($author)) {
$avatar = get_avatar($author->user_email, 64, $default, $author->display_name);
} else {
$avatar = '<img src="' . esc_url($default) . '" alt="' . $author->display_name . '" />';
}
}
return $avatar;
}
/**
* get_single_id()
*
* @return int $author_id
**/
static function get_single_id()
{
$author_id = get_transient('author_image_cache');
if ($author_id && !sem_author_image_debug) {
return $author_id;
} elseif ($author_id === '' && !sem_author_image_debug) {
return 0;
} elseif (!is_dir(WP_CONTENT_DIR . '/authors')) {
set_transient('author_image_cache', '');
return 0;
}
# try the site admin first
$user = get_user_by('email', get_option('admin_email'));
if ($user && $user->ID && author_image::get($user->ID)) {
set_transient('author_image_cache', $user->ID);
return $user->ID;
}
global $wpdb;
$author_id = 0;
$i = 0;
do {
$offset = $i * 10;
$limit = ($i + 1) * 10;
$authors = $wpdb->get_results("\n\t\t\t\tSELECT\t{$wpdb->users}.ID,\n\t\t\t\t\t\t{$wpdb->users}.user_login\n\t\t\t\tFROM\t{$wpdb->users}\n\t\t\t\tJOIN\t{$wpdb->usermeta}\n\t\t\t\tON\t\t{$wpdb->usermeta}.user_id = {$wpdb->users}.ID\n\t\t\t\tAND\t\t{$wpdb->usermeta}.meta_key = '" . $wpdb->prefix . "capabilities'\n\t\t\t\tJOIN\t{$wpdb->posts}\n\t\t\t\tON\t\t{$wpdb->posts}.post_author = {$wpdb->users}.ID\n\t\t\t\tGROUP BY {$wpdb->users}.ID\n\t\t\t\tORDER BY {$wpdb->users}.ID\n\t\t\t\tLIMIT {$offset}, {$limit}\n\t\t\t\t");
if (!$authors) {
set_transient('author_image_cache', '');
return 0;
}
foreach ($authors as $author) {
if (defined('GLOB_BRACE')) {
$author_image = glob(WP_CONTENT_DIR . '/authors/' . $author->user_login . '{,-*}.{jpg,jpeg,png}', GLOB_BRACE);
} else {
$author_image = glob(WP_CONTENT_DIR . '/authors/' . $author->user_login . '-*.jpg');
}
if ($author_image) {
$user = new WP_User($author->ID);
if (!$user->has_cap('publish_posts') && !$user->has_cap('publish_pages')) {
continue;
}
$author_id = $author->ID;
set_transient('author_image_cache', $author_id);
return $author_id;
}
}
$i++;
} while (!$author_id);
set_transient('author_image_cache', '');
return 0;
}