From b66fadbba26b71659895fb69a3d6193932ad1daf Mon Sep 17 00:00:00 2001
From: Thomas Mudrunka <tomas@mudrunka.cz>
Date: Fri, 5 Aug 2011 06:23:35 +0200
Subject: [PATCH] Zakladni podpora audit trails

---
 index.php   | 54 ++++++++++++++++++++++++++++++++++++++++++++++++-----
 install.sql | 45 ++++++++++++++++++++++++++++++++++++--------
 2 files changed, 86 insertions(+), 13 deletions(-)

diff --git a/index.php b/index.php
index b169e36..eeb4408 100755
--- a/index.php
+++ b/index.php
@@ -323,7 +323,7 @@ class Sklad_DB extends PDO {
 			if(!preg_match('/'.$suffix_id.'$/', $column['Field'])) continue;
 			$table=preg_replace('/'.$suffix_id.'$/','',$column['Field']);
 
-			$sql = "SELECT $table$suffix_id, $table$suffix_name FROM $table;";
+			$sql = "SELECT $table$suffix_id, $table$suffix_name FROM $table;"; //TODO History
 			$result = $this->safe_query($sql, false);
 			if(!$result) continue;
 			$result = $result->fetchAll(PDO::FETCH_ASSOC);
@@ -339,21 +339,64 @@ class Sklad_DB extends PDO {
 	}
 
 	function build_query_insert($table, $values, $replace=true, $suffix_id='_id') {
+		//Init
+		$history = $this->contains_history($table);
+
 		//Escaping
 		$table = $this->escape($table);
 
 		//Get list of POSTed columns
 		$columns = implode(',',array_map(array($this,'escape'), array_keys($values[0])));
 
+		$sql = '';
+
+		//echo('<pre>'); die(print_r($values));
+
+		if($history) {
+			$history_update=false;	foreach($values as $row) if(is_numeric($row[$table.'_id'])) $history_update=true;
+			if($history_update) {
+				$sql .= "UPDATE $table";
+				$sql .= ' SET '.$table.'_valid_till=NOW()';
+				$sql .= ' WHERE '.$table.'_valid_till=0 AND (';
+				$or = '';
+				foreach($values as $row) {
+					$sql .= $or.' '.$table.'_id='.$row[$table.'_id'];
+					$or = ' OR';
+				}
+				$sql .= " );\n\n";
+				$replace = false;
+			}
+		}
+
 		//Insert into table (columns)
-		$sql = 'INSERT';
-		if($replace) $sql = 'REPLACE';
+		$sql .= $replace ? 'REPLACE' : 'INSERT';
 		$sql .= " INTO $table ($columns) VALUES ";
 
 		//Values (a,b,c),(d,e,f)
 		$comma='';
 		foreach($values as $row) {
-			$sql .= $comma.'('.implode(',',array_map(array($this,'quote'), $row)).')';
+			if(!$history) {
+				 $row_quoted = array_map(array($this,'quote'), $row); //Check
+			} else {
+				foreach($row as $column => $value) {
+					switch($column) {
+						case $table.'_valid_from':
+							$row_quoted[$column] = 'NOW()';
+							break;
+						case $table.'_valid_till':
+							$row_quoted[$column] = '0';
+							break;
+						case 'user_id': //TODO HACK: conflict s tabulkami, ktery user_id pouzivaji k necemu jinymu!!!
+							$row_quoted[$column] = $this->lms->get_authorized_user_id(); //TODO: Zjistit proc to nefunguje!!!
+							//die($this->lms->get_authorized_user_id().'=USER');
+							break;
+						default:
+							$row_quoted[$column] = $this->quote($value);
+							break;
+					}
+				}
+			}
+			$sql .= $comma.'('.implode(',',$row_quoted).')';
 			$comma = ',';
 		}
 
@@ -375,6 +418,7 @@ class Sklad_DB extends PDO {
 	}
 
 	function delete($table, $id, $suffix_id='_id') {
+		if($this->contains_history($table)) die(trigger_error("V tabulce $table jentak neco mazat nebudes chlapecku :-P")); //TODO post redirect get
 		$key = $this->escape($table.$suffix_id);
 		$table = $this->escape($table);
 		$id = $this->quote($id);
@@ -399,7 +443,7 @@ class Sklad_UI {
 	}
 
 	function render_items($class, $id=false, $limit=false, $offset=0, $search=false) {
-		return $this->html->render_item_table($this->db->get_listing($class, $id, $limit, $offset, $search));
+		return $this->html->render_item_table($this->db->get_listing($class, $id, $limit, $offset, $search, false));
 	}
 
 	function render_form_add($class) {
diff --git a/install.sql b/install.sql
index 21937c5..31aa74b 100644
--- a/install.sql
+++ b/install.sql
@@ -53,11 +53,14 @@ CREATE TABLE `item` (
   `vendor_id` int(11) NOT NULL,
   `item_serial` varchar(128) collate utf8_czech_ci NOT NULL,
   `item_quantity` int(11) default NULL,
-  `room_id` int(11) NOT NULL default '0',
-  `status_id` int(11) NOT NULL default '0',
+  `room_id` int(11) NOT NULL default '1',
+  `status_id` int(11) NOT NULL default '1',
   `item_price_in` decimal(9,2) NOT NULL default '0.00',
   `item_price_out` decimal(9,2) default NULL,
-  PRIMARY KEY  (`item_id`),
+  `user_id` int(11) NOT NULL,
+  `item_valid_from` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
+  `item_valid_till` timestamp NOT NULL default '0000-00-00 00:00:00',
+  PRIMARY KEY  (`item_id`,`item_valid_till`),
   UNIQUE KEY `item_serial` (`item_serial`),
   KEY `vendor_id` (`vendor_id`),
   KEY `model_id` (`model_id`),
@@ -67,7 +70,7 @@ CREATE TABLE `item` (
   CONSTRAINT `item_ibfk_7` FOREIGN KEY (`model_id`) REFERENCES `model` (`model_id`),
   CONSTRAINT `item_ibfk_8` FOREIGN KEY (`status_id`) REFERENCES `status` (`status_id`),
   CONSTRAINT `item_ibfk_9` FOREIGN KEY (`room_id`) REFERENCES `room` (`room_id`)
-) ENGINE=InnoDB AUTO_INCREMENT=23 DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
+) ENGINE=InnoDB AUTO_INCREMENT=26 DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
 SET character_set_client = @saved_cs_client;
 
 --
@@ -76,7 +79,7 @@ SET character_set_client = @saved_cs_client;
 
 LOCK TABLES `item` WRITE;
 /*!40000 ALTER TABLE `item` DISABLE KEYS */;
-INSERT INTO `item` VALUES (9,3,2,'SATAN',0,1,1,'0.10','0.00'),(20,3,1,'editmeeeee',23,1,1,'0.00','0.00'),(22,1,1,'ahoj',42,1,1,'1.00','2.00');
+INSERT INTO `item` VALUES (9,3,2,'SATAN',0,1,1,'0.10','0.00',0,'0000-00-00 00:00:00','2011-08-05 03:15:20'),(20,3,1,'editmeeeee',23,1,1,'0.00','0.00',0,'0000-00-00 00:00:00','2011-08-05 03:15:20'),(22,1,1,'ahoj',42,1,1,'1.00','2.00',0,'0000-00-00 00:00:00','2011-08-05 03:15:20'),(24,1,1,'',0,1,4,'0.00','0.00',0,'0000-00-00 00:00:00','2011-08-05 03:15:20'),(25,1,1,'sdaNEW8',1,1,1,'0.00','0.00',23,'2011-08-05 04:14:17','0000-00-00 00:00:00'),(25,1,1,'sdaNEW',1,1,1,'0.00','0.00',0,'2011-08-05 03:20:15','2011-08-05 03:20:15'),(25,1,1,'sdaNEW4',1,1,1,'0.00','0.00',0,'2011-08-05 03:59:20','2011-08-05 03:59:20'),(25,1,1,'sdaNEW5',1,1,1,'0.00','0.00',0,'2011-08-05 04:00:30','2011-08-05 04:00:30'),(25,1,1,'sdaNEW2',1,1,1,'0.00','0.00',0,'2011-08-05 04:05:11','2011-08-05 04:05:11'),(25,1,1,'sdaNEW6',1,1,1,'0.00','0.00',0,'2011-08-05 04:06:04','2011-08-05 04:06:04'),(25,1,1,'sdaNEW7',1,1,1,'0.00','0.00',0,'2011-08-05 04:14:16','2011-08-05 04:14:16');
 /*!40000 ALTER TABLE `item` ENABLE KEYS */;
 UNLOCK TABLES;
 
@@ -180,7 +183,7 @@ CREATE TABLE `status` (
   `status_name` varchar(16) collate utf8_czech_ci NOT NULL,
   PRIMARY KEY  (`status_id`),
   UNIQUE KEY `status_name` (`status_name`)
-) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
+) ENGINE=InnoDB AUTO_INCREMENT=6 DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
 SET character_set_client = @saved_cs_client;
 
 --
@@ -189,10 +192,36 @@ SET character_set_client = @saved_cs_client;
 
 LOCK TABLES `status` WRITE;
 /*!40000 ALTER TABLE `status` DISABLE KEYS */;
-INSERT INTO `status` VALUES (4,'destroyed'),(2,'placed'),(3,'saled'),(1,'stored');
+INSERT INTO `status` VALUES (5,'DELETED'),(4,'destroyed'),(2,'placed'),(3,'saled'),(1,'stored');
 /*!40000 ALTER TABLE `status` ENABLE KEYS */;
 UNLOCK TABLES;
 
+--
+-- Table structure for table `test_history`
+--
+
+DROP TABLE IF EXISTS `test_history`;
+SET @saved_cs_client     = @@character_set_client;
+SET character_set_client = utf8;
+CREATE TABLE `test_history` (
+  `id` int(11) NOT NULL auto_increment,
+  `data` char(23) collate utf8_czech_ci NOT NULL,
+  `timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP,
+  `old` int(1) NOT NULL default '0',
+  PRIMARY KEY  (`id`,`old`)
+) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_czech_ci;
+SET character_set_client = @saved_cs_client;
+
+--
+-- Dumping data for table `test_history`
+--
+
+LOCK TABLES `test_history` WRITE;
+/*!40000 ALTER TABLE `test_history` DISABLE KEYS */;
+INSERT INTO `test_history` VALUES (2,'lol','2011-08-04 01:19:43',0);
+/*!40000 ALTER TABLE `test_history` ENABLE KEYS */;
+UNLOCK TABLES;
+
 --
 -- Table structure for table `transaction`
 --
@@ -278,4 +307,4 @@ UNLOCK TABLES;
 /*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
 /*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;
 
--- Dump completed on 2011-07-29  3:44:28
+-- Dump completed on 2011-08-05  4:24:16
-- 
2.30.2