public Course TryAddCourse(CourseContract courseContract, out string message)
{
if (!Utilities.IsValidCourseContract(courseContract, out message))
{
return(null);
}
try
{
if (_coursesRepository.GetCourseByName(courseContract.Name) != null)
{
message = "Course with the same name is already exist";
return(null);
}
var course = new Course(courseContract);
return(_coursesRepository.AddCourse(course));
}
catch (DALException e)
{
// LOG
throw new BLException("There was a problem adding new student", e);
}
}