public override void Create(Subject subject)
{
if (SubjectValidation.IsValidSubject(subject))
{
DataAccessProvider.ExecuteNonQuery($"INSERT INTO Subjects (SubjectName, UniversityID) " +
$"values (\'{subject.SubjectName}\', " +
$"{subject.UniversityId})");
}
}
public override void Update(Subject subject)
{
if (SubjectValidation.IsValidSubject(subject) &&
SubjectValidation.IsValidSubjectId(subject.SubjectId))
{
DataAccessProvider.ExecuteNonQuery($"UPDATE Subjects SET " +
$"SubjectName = \'{subject.SubjectName}\', " +
$"UniversityID = {subject.UniversityId} " +
$"WHERE SubjectID = {subject.SubjectId}");
}
}
private void AddSubjectButton_Click(object sender, EventArgs e)
{
var subjectRepository = new SubjectRepository();
var subjectName = addSubjectNameTextBox.Text;
var subject = new Subject(subjectName, _universityId);
if (!SubjectValidation.IsValidSubject(subject))
{
return;
}
subjectRepository.Create(subject);
RefreshForm();
}