data form

paymentLogs/Repositories/CourseRepo.cs

@@ -28,9 +28,7 @@ namespace PaymentLogs.Repositories
                 Course course = new Course() { 
                     Id = reader.GetInt32("id"), 
                     Name = reader.GetString("name"),
-                    Type = reader.GetString("type"),
                     Cost = reader.GetInt32("cost"),
-                    Duration = reader.GetInt32("duration"),
                     StudentsCount = reader.GetInt32("students_count")
                 };
                 _data[course.Id] = course;
@@ -41,21 +39,21 @@ namespace PaymentLogs.Repositories
 
         public override void Save()
         {
-            
-            foreach(Course course in All())
+            DataBase db = new DataBase();
+            db.openConnection();
+            foreach (Course course in All())
             {
-                DataBase db = new DataBase();
-                db.openConnection();
-                string sql = $" INSERT INTO `courses` (`id`, `name`, `type`, `cost`, `duration`, `students_count`) VALUES ('{course.Id}'," +
-                    $"'{course.Name}', '{course.Type}', '{course.Cost}', '{course.Duration}', '{course.StudentsCount}') " +
-                $"ON DUPLICATE KEY UPDATE `name`='{course.Name}', `type`='{course.Type}', `cost`='{course.Cost}', `duration`='{course.Duration}'," +
+                
+                string sql = $" INSERT INTO `courses` (`id`, `name`, `cost`, `students_count`) VALUES ('{course.Id}'," +
+                    $"'{course.Name}', '{course.Cost}', '{course.StudentsCount}') " +
+                $"ON DUPLICATE KEY UPDATE `name`='{course.Name}', `cost`='{course.Cost}'," +
                 $"`students_count`='{course.StudentsCount}' ";
                 MySqlCommand cmd = new MySqlCommand(sql, db.getConnection());
                 cmd.ExecuteNonQuery();
-                db.closeConnection();
+                
             }
-            
-           
+            db.closeConnection();
+
         }
 
         public Course ByName(string name)