[svn r22120] minor-logic changes-allow not create instance of class Database - (partial FS#4400)

main/gradebook/lib/fe/displaygradebook.php

@@ -190,8 +190,8 @@ class DisplayGradebook
 		//student
 		$status=CourseManager::get_user_in_course_status(api_get_user_id(), api_get_course_id());
 		$objcat=new Category();
-		$objdat=new Database();
-		$course_id=$objdat->get_course_by_category($selectcat);
+		//$objdat=new Database();
+		$course_id=Database::get_course_by_category($selectcat);
 		$message_resource=$objcat->show_message_resource_delete($course_id);
 		
 		if (!$is_course_admin && $status<>1 && $selectcat<>0) {

main/gradebook/lib/fe/gradebooktable.class.php

@@ -268,10 +268,10 @@ private function build_id_column ($item) {
 			// evaluation
 			case 'E' :
 				$cat=new Category();
-				$dblib=new Database();
+				//$dblib=new Database();
 		
 				$category_id=Security::remove_XSS($_GET['selectcat']);
-				$course_id=$dblib->get_course_by_category($category_id);
+				$course_id=Database::get_course_by_category($category_id);
 				$show_message=$cat->show_message_resource_delete($course_id);
 				
 				// course/platform admin can go to the view_results page
@@ -300,10 +300,10 @@ private function build_id_column ($item) {
 			// link
 			case 'L' :
 				$cat=new Category();
-				$dblib=new Database();
+				//$dblib=new Database();
 		
 				$category_id=Security::remove_XSS($_GET['selectcat']);
-				$course_id=$dblib->get_course_by_category($category_id);
+				$course_id=Database::get_course_by_category($category_id);
 				$show_message=$cat->show_message_resource_delete($course_id);
 				
 				$url = $item->get_link();