From e7981c8a0348a3d28e0fecfca536ca6f5a8c88d4 Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Sun, 16 Mar 2014 21:34:51 -0700
Subject: remove mysql dependencies from cache api

---
 include/cache.php | 47 ++++++++++++++++-------------------------------
 1 file changed, 16 insertions(+), 31 deletions(-)

(limited to 'include/cache.php')

diff --git a/include/cache.php b/include/cache.php
index b546cd0e9..a70650b5e 100644
--- a/include/cache.php
+++ b/include/cache.php
@@ -6,52 +6,37 @@
 	 
 	class Cache {
 		public static function get($key){
-			$r = q("SELECT `v` FROM `cache` WHERE `k`='%s' limit 1",
+			$r = q("SELECT v FROM cache WHERE k = '%s' limit 1",
 				dbesc($key)
 			);
 			
-			if (count($r)) return $r[0]['v'];
+			if ($r)
+				return $r[0]['v'];
 			return null;
 		}
 		
 		public static function set($key,$value) {
 
-			q("REPLACE INTO `cache` (`k`,`v`,`updated`) VALUES ('%s','%s','%s')",
+			$r = q("SELECT * FROM cache WHERE k = '%s' limit 1",
+				dbesc($key)
+			);
+			if($r) {
+				q("UPDATE cache SET v = '%s', updated = '%s' WHERE k = '%s' limit 1",
+					dbesc($value),
+					dbesc(datetime_convert()),
+					dbesc($key));
+			}
+			else {
+				q("INSERT INTO cache ( k, v, updated) VALUES ('%s','%s','%s')",
 					dbesc($key),
 					dbesc($value),
 					dbesc(datetime_convert()));
+			}
 		}
 
 		
-/* 
- *
- * Leaving this legacy code temporaily to see how REPLACE fares 
- * as opposed to non-atomic checks when faced with fast moving key duplication.
- * As a MySQL extension it isn't portable, but we're not yet very portable.
- */
-
-/*
- *			$r = q("SELECT * FROM `cache` WHERE `k`='%s' limit 1",
- *				dbesc($key)
- *			);
- *			if(count($r)) {
- *				q("UPDATE `cache` SET `v` = '%s', `updated = '%s' WHERE `k` = '%s' limit 1",
- *					dbesc($value),
- *					dbesc(datetime_convert()),
- *					dbesc($key));
- *			}
- *			else {
- *				q("INSERT INTO `cache` (`k`,`v`,`updated`) VALUES ('%s','%s','%s')",
- *					dbesc($key),
- *					dbesc($value),
- *					dbesc(datetime_convert()));
- *			}
- *		}
- */
-
-		
 		public static function clear(){
-			q("DELETE FROM `cache` WHERE `updated` < '%s'",
+			q("DELETE FROM cache WHERE updated < '%s'",
 				dbesc(datetime_convert('UTC','UTC',"now - 30 days")));			
 		}
 		
-- 
cgit v1.2.3