[svn r19770] Minor - Fixed warning Invalid argument for foreach when you import a session from a file - partial FS#3909

main/admin/session_import.php

@@ -1,4 +1,4 @@
-<?php // $Id: session_import.php 19639 2009-04-08 13:06:16Z pcool $
+<?php // $Id: session_import.php 19770 2009-04-14 20:44:00Z cfasanando $
 /* For licensing terms, see /dokeos_license.txt */
 /**
 ==============================================================================
@@ -56,6 +56,7 @@ if ($_POST['formSent']) {
 
 			$racine = simplexml_load_file($_FILES['import_file']['tmp_name']);			
 			if (is_object($racine)) {
+				if (count($racine->Users->User) > 0) {					
 					foreach($racine->Users->User as $userNode)
 					{
 						$username = mb_convert_encoding($userNode->Username,$charset,'utf-8');
@@ -151,6 +152,8 @@ if ($_POST['formSent']) {
 							api_sql_query($sql, __FILE__, __LINE__);						
 						}
 					}
+				}					
+				if (count($racine->Courses->Course) > 0) {			
 					foreach($racine->Courses->Course as $courseNode) {
 						$course_code = mb_convert_encoding($courseNode->CourseCode,$charset,'utf-8');
 						$title = mb_convert_encoding($courseNode->CourseTitle,$charset,'utf-8');
@@ -216,7 +219,8 @@ if ($_POST['formSent']) {
 	
 						}
 					}                    
-				
+				}
+				if (count($racine->Session) > 0) {
 					foreach ($racine->Session as $sessionNode) { // foreach session
 						
 						$countCourses = 0;
@@ -259,7 +263,7 @@ if ($_POST['formSent']) {
 								$errorMsg .= get_lang('StartDateShouldBeBeforeEndDate').' : '.$DateEnd.'<br />';
 							}
 						}
-
+					}
 
 					// verify that session doesn't exist
 					while(!$uniqueName)