public async Task Start(StudentTestSession studentTestSession, Guid variantId)
{
var queryParams = new TestSessionVariantsQueryParameters
{
Id = variantId,
TestSessionId = studentTestSession.TestSessionId,
IsReadOnly = false,
};
var testVariant = await _unitOfWork.GetSingleOrDefault(queryParams);
if (testVariant == null)
{
throw new CodedException(ErrorCode.InvalidVariantName);
}
if (studentTestSession.TestSession.StudentTestDuration.HasValue)
{
studentTestSession.ShouldEndAt =
_dateTimeProvider.UtcNow.Add(studentTestSession.TestSession.StudentTestDuration.Value);
}
studentTestSession.TestVariantId = variantId;
studentTestSession.Questions = GenerateQuestions(testVariant);
await _unitOfWork.Update(studentTestSession);
}
public async Task <Unit> Handle(StudentTestSessionStateTransitionRequest request, CancellationToken cancellationToken)
{
var queryParameters = new StudentTestSessionQueryParameters(request.StudentTestSessionId)
{
IsReadOnly = false,
};
StudentTestSession session = await _unitOfWork.GetSingle(queryParameters);
await _stateManager.Process(session, request.Trigger, request.SerializedData);
await _unitOfWork.Update(session);
await _unitOfWork.Commit();
return(Unit.Value);
}