Issue 1778: DB Classes: Add prepared statements support - Added new config option in db.config.php to decide if prepared statments should be used or not. Default is Yes.

git-svn-id: http://xe-core.googlecode.com/svn/branches/1.5.0@10474 201d5d3c-b55e-5fd7-737f-ddc643e51545

classes/context/Context.class.php

@@ -239,7 +239,12 @@ class Context {
                     $oInstallController = &getController('install');
                     $oInstallController->makeConfigFile();
                 }
-
+		
+		if(!$db_info->use_prepared_statements) 
+		{
+			$db_info->use_prepared_statements = 'Y';
+		}
+				
 		if(!$db_info->time_zone) $db_info->time_zone = date('O');
 		$GLOBALS['_time_zone'] = $db_info->time_zone;
 

classes/db/DB.class.php

@@ -82,6 +82,8 @@
 
 		var $db_type; ///< stores database type: 'mysql','cubrid','mssql' etc. or 'db' when database is not yet set
 
+		var $use_prepared_statements; ///< flag to decide if class prepared statements or not (when supported); can be changed from db.config.info
+		
         /**
          * @brief returns instance of certain db type
          * @param[in] $db_type type of db
@@ -762,6 +764,7 @@
             else
                     $this->slave_db = $db_info->slave_db;
             $this->prefix = $db_info->master_db["db_table_prefix"];
+			$this->use_prepared_statements = $db_info->use_prepared_statements;
         }
 
         function __connect(){

classes/db/DBMysql.class.php

@@ -6,6 +6,8 @@
      * @version 0.1
      *
      * mysql handling class
+	 * 
+	 * Does not use prepared statements, since mysql driver does not support them
      **/
 
     class DBMysql extends DB {

classes/db/DBMysql_innodb.class.php

@@ -8,6 +8,8 @@
      * @version 0.1
      *
      * mysql innodb handling class
+	 * 
+	 * Does not use prepared statements since the mysql driver does not support them
      **/
 
     class DBMysql_innodb extends DBMysql {