return floatval($parts[0]) / floatval($parts[1]);
}
+
+/**
+ * @brief Fetch the photo albums that are available for a viewer
+ *
+ * The query in this function is cost intensive, so it is cached.
+ *
+ * @param int $uid User id of the photos
+ * @param bool $update Update the cache
+ *
+ * @return array Returns array of the photo albums
+ */
+function photo_albums($uid, $update = false) {
+ $sql_extra = permissions_sql($uid);
+
+ $key = "photo_albums:".$uid.":".local_user().":".remote_user();
+ $albums = Cache::get($key);
+ if (is_null($albums) OR $update) {
+ /// @todo This query needs to be renewed. It is really slow
+ // At this time we just store the data in the cache
+ $albums = qu("SELECT COUNT(DISTINCT `resource-id`) AS `total`, `album`
+ FROM `photo` USE INDEX (`uid_album_created`)
+ WHERE `uid` = %d AND `album` != '%s' AND `album` != '%s' $sql_extra
+ GROUP BY `album` ORDER BY `created` DESC",
+ intval($uid),
+ dbesc('Contact Photos'),
+ dbesc(t('Contact Photos'))
+ );
+ Cache::set($key, $albums, CACHE_DAY);
+ }
+ return $albums;
+}