Implemented Wrapper and Stacker + optimized Excel import

build/api/module/excelController.php

@@ -348,6 +348,10 @@ class excelController
 				/** @var tp $tpRepo */
 				$tpRepo = Repo::getRepo("tp");
 
+				$CoursToLink = [];
+				$TDToLink = [];
+				$TPToLink = [];
+
 				foreach ($allUE as $codeUE => $UE){
 
 					if($UE["defaultFormation"]){
@@ -377,22 +381,25 @@ class excelController
 
 								switch ($type){
 									case "Course":
-										$coursRepo->create(	$codeUE,
+										$CoursToLink[] = ["id" => $coursRepo->create(	$codeUE,
 																					$allProf[$group["professor"]]["dbId"],
 																			$UE["disabled"] ? $UE["CourseVH"] : $group["VH"],
-															$formations);
+																					[]),
+														"form" => $formations];
 										break;
 									case "TD":
-										$tdRepo->create($codeUE,
+										$TDToLink[] = ["id" => $tdRepo->create($codeUE,
 																					$allProf[$group["professor"]]["dbId"],
 																			$UE["disabled"] ? $UE["TdVH"] : $group["VH"],
-														$formations);
+																					[]),
+														"form" => $formations];
 										break;
 									case "TP":
-										$tpRepo->create($codeUE,
+										$TPToLink[] = ["id" => $tpRepo->create($codeUE,
 																				$allProf[$group["professor"]]["dbId"],
 																		$UE["disabled"] ? $UE["TpVH"] : $group["VH"],
-														$formations);
+																				[]),
+														"form" => $formations];
 										break;
 								}
 
@@ -401,6 +408,26 @@ class excelController
 					}
 				}
 
+				Repo::enableStacking();
+
+				foreach ($CoursToLink as $cour){
+					foreach ($cour["form"] as $formation){
+						$coursRepo->linkFormation($formation,$cour["id"]);
+					}
+				}
+				foreach ($TDToLink as $cour){
+					foreach ($cour["form"] as $formation){
+						$tdRepo->linkFormation($formation,$cour["id"]);
+					}
+				}
+				foreach ($TPToLink as $cour){
+					foreach ($cour["form"] as $formation){
+						$tpRepo->linkFormation($formation,$cour["id"]);
+					}
+				}
+
+				Repo::flushStack();
+
 				return [ 'data' => ["professors" => $allProf, "formations" => $allFormations, "UEs" => $allUE ] ];
 			}catch (Exception $e){
 				return [ 'error' => new Error(Err::UnknownError) ];

build/database/core/DatabaseDriver.php

@@ -11,6 +11,7 @@
 	**************************/
 
 	namespace database\core;
+	use database\core\PDOWrapper\PDOWrapper;
 	use \error\core\Error;
 	use \error\core\Err;
 
@@ -69,9 +70,10 @@
 
 			try{
 
-				$this->pdo = new \PDO('mysql:host='.$this->host.';dbname='.$this->dbname.';charset=utf8', $this->username, $this->password, [
+				$this->pdo = new PDOWrapper('mysql:host='.$this->host.';dbname='.$this->dbname.';charset=utf8', $this->username, $this->password, [
 					\PDO::ATTR_DEFAULT_FETCH_MODE => \PDO::FETCH_ASSOC,
-					\PDO::ATTR_TIMEOUT            => 5
+					\PDO::ATTR_TIMEOUT            => 5,
+					\PDO::ERRMODE_EXCEPTION		  => true
 				]);
 
 				$this->pdo->setAttribute(\PDO::ATTR_STRINGIFY_FETCHES, false);
@@ -194,6 +196,14 @@
 			];
 		}
 
+		public function enableStacking(){
+			$this->pdo->enableStacking();
+		}
+
+		public function flushStack(){
+			$this->pdo->executeStack();
+		}
+
 
 
 	}

build/database/core/PDOWrapper/PDOStatementWrapper.php

@@ -0,0 +1,51 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: lucas
+ * Date: 30/08/16
+ * Time: 17:42
+ */
+
+namespace database\core\PDOWrapper;
+
+
+class PDOStatementWrapper extends \PDOStatement
+{
+    private $statement;
+    private $parameters;
+    private $connexion;
+
+    public function __construct($statement, PDOWrapper $connexion)
+    {
+        $this->statement = $statement;
+        $this->connexion = $connexion;
+
+
+    }
+
+    public function execute($input_parameters = [])
+    {
+		$this->parameters = $input_parameters;
+		$this->connexion->stackStatement($this);
+        return true;
+    }
+
+    /**
+     * @return string
+     */
+    public function getStatement()
+    {
+        return $this->statement;
+    }
+
+    /**
+     * @return array
+     */
+    public function getParameters()
+    {
+        return $this->parameters;
+    }
+
+
+
+}

build/database/core/PDOWrapper/PDOWrapper.php

@@ -0,0 +1,91 @@
+<?php
+/**
+ * Created by PhpStorm.
+ * User: lucas
+ * Date: 30/08/16
+ * Time: 17:26
+ */
+
+namespace database\core\PDOWrapper;
+
+
+class PDOWrapper extends \PDO
+{
+	private $statements = [];
+	private $stacking = false;
+
+    public function __construct(String $dsn, String $username, String $passwd, array $options = [])
+    {
+        parent::__construct($dsn, $username, $passwd, $options);
+    }
+
+    public function prepare($statement, $options = [])
+    {
+        if($this->stacking){
+            return new PDOStatementWrapper($statement, $this);
+        }else{
+			parent::setAttribute(\PDO::ATTR_EMULATE_PREPARES, true);
+        	return parent::prepare($statement, $options);
+
+        }
+    }
+
+    public function enableStacking(){
+    	$this->stacking = true;
+	}
+
+	public function stackStatement(PDOStatementWrapper $st){
+		array_push($this->statements,$st);
+	}
+
+	public function executeStack(){
+		//init the statements and the generator of number
+		$finalStatement = '';
+		$finalExecute = [];
+		$i = 0;
+
+		//for each request stacked
+		foreach ($this->statements as $request){
+			$statement = $request->getStatement();
+
+			// we have to modify the parameters index at the same time that we modify the request, so we use static class attribute
+			$tempParametes = $request->getParameters();
+
+			//find the given pattern in the request, then call our function and replace the matched string by the return value of our function
+			$finalStatement .= rtrim(preg_replace_callback("/(:[a-z_\-0-9]*)/is",function($matches) use (&$i,&$tempParametes){
+					//get next number
+					$i++;
+
+					//delete the ':' at the beginning of the string
+					$tempKey = ltrim($matches[0],':');
+
+					//copy the parameter with the modified index
+					$tempParametes[$tempKey.$i] = $tempParametes[$tempKey];
+
+					//delete the old index
+					unset($tempParametes[$tempKey]);
+
+					//return the modified string for replacement
+					return $matches[0].$i;
+				},$statement),';').';';
+
+			$finalExecute = array_merge($finalExecute,$tempParametes);
+		}
+
+		//disable stacking
+		$this->stacking = false;
+
+		$this->beginTransaction();
+
+		$req = $this->prepare($finalStatement);
+
+		$success = $req->execute($finalExecute);
+		//as we execute multiple query that we don't fetch, we have to close the cursor if we want to do other requests later
+		$req->closeCursor();
+		$this->commit();
+		//using beginTransaction/commit disable the autocommit, we re-activate it
+		$this->setAttribute(\PDO::ATTR_AUTOCOMMIT,1);
+		parent::setAttribute(\PDO::ATTR_EMULATE_PREPARES, false);
+		return $success;
+	}
+}

build/database/core/Repo.php

@@ -12,6 +12,7 @@
 
 	namespace database\core;
 
+	use database\core\PDOWrapper\PDOWrapper;
 	use \error\core\Error;
 	use \error\core\Err;
 
@@ -20,6 +21,9 @@
 
 		/* (1) Driver
 		---------------------------------------------------------*/
+		/**
+		 * @var DatabaseDriver
+		 */
 		private static $driver = null;
 
 		public static function setDriver(DatabaseDriver $driver){ self::$driver = $driver; }
@@ -57,6 +61,14 @@
 			return $instance;
 		}
 
+		public static function enableStacking(){
+			static::$driver->enableStacking();
+		}
+
+		public static function flushStack(){
+			static::$driver->flushStack();
+		}
+