/// <summary>
/// Maps BllSubject entity to DalSubject entity.
/// </summary>
/// <param name="subject"> BllSubject instance.</param>
/// <returns> DalSubject instance.</returns>
public static DalSubject ToDalSubject(this BllSubject subject)
{
return(new DalSubject()
{
Id = subject.Id,
Name = subject.Name
});
}
/// <summary>
/// Maps BllSubject entity to SubjectViewModel.
/// </summary>
/// <param name="subject"> BllSubject instance.</param>
/// <returns> SubjectViewModel instance.</returns>
public static SubjectViewModel ToSubjectViewModel(this BllSubject subject)
{
return(new SubjectViewModel
{
Id = subject.Id,
Name = subject.Name
});
}
/// <summary>
/// Gets tests for specified subject.
/// </summary>
/// <param name="subject"> Subject instance.</param>
/// <returns> Tests created by specified subject.</returns>
public IEnumerable <BllTest> GetTestsBySubject(BllSubject subject)
{
if (subject == null)
{
throw new ArgumentNullException(nameof(subject));
}
return(repository.GetByPredicate(t => t.Subject.Id == subject.Id).Select(t => t.ToBllTest()));
}