public AddNewTaskCommandHandler(IUnitOfWork unitOfWork, IPostCommitEvent postCommitEvent)
 {
     this.unitOfWork      = unitOfWork;
     this.postCommitEvent = postCommitEvent;
 }
 public AddNewCourseCommandHandler(SampleDBContext dbcontext, IPostCommitEvent postCommitEvent)
 {
     this.dbcontext       = dbcontext;
     this.postCommitEvent = postCommitEvent;
 }