fix

db/StoredProcedures.sql

@@ -1857,8 +1857,7 @@ BEGIN
 	LIMIT 1;
 
 
-	IF 	(checker = 1 AND ExamType = 'credit') OR 
-		(checker = 0 AND ExamType = 'exam') 		
+	IF 	(checker != ExamType) 		
 	THEN
 		UPDATE `disciplines`
 		SET 	disciplines.ExamType = ExamType
@@ -1869,6 +1868,7 @@ BEGIN
 		ELSE
 			SET checker = DeleteModuleExam(TeacherID, DisciplineID);
 		END IF;
+		RETURN 0;
 	END IF;
 	RETURN 0;
 END //