X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=include%2Fphotos.php;h=2beb23ffaf52001396db1ca34d48979bc9c09bdb;hb=b4bc07fdcce4e326d5ade05aab0f7305e874398e;hp=93a565b5116ecd2b8c0a55060e675858843548b4;hpb=c00772204100a44267c38f7a2533268b5dff1248;p=friendica.git

diff --git a/include/photos.php b/include/photos.php
index 93a565b511..2beb23ffaf 100644
--- a/include/photos.php
+++ b/include/photos.php
@@ -25,3 +25,34 @@ function gps2Num($coordPart) {
 
 	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;
+}