private Result <CandidateExamsRegistrations> CreateCandidateExamRegistrations(
List <ExamOptionPriceListEntry> allowedExamOptions,
CandidateExamsRegistrationsCollection allRegistrations,
ExamRegistrationRow row,
SessionInfo session,
PreparationCentreInfo preparationCentreInfo,
SessionChronology sessionChronology
)
{
var candidateResult = CreateCandidate(row.Candidate, row.CandidateGuardian);
var identifierResult = PersonIdentifier.Create(row.Candidate.IdType, row.Candidate.IdNumber, row.Candidate.IdExpiryDate);
var registrationsResults = new List <Result <Registration> >();
foreach (var eo in row.ExamOptions)
{
var registrationTypeValue = RegistrationTypeValueExtensions.Cast(eo.RegisteringTypeCellValue);
var combinedExamOptionResult = Result.Ok();
var domainExamOptionResult = GetExamOptionIfAllowed(allowedExamOptions, eo);
ExamOption examOption = null;
if (domainExamOptionResult.IsSuccess)
{
var examOptionResult = ExamOption.Create(domainExamOptionResult.Value.Code, domainExamOptionResult.Value.SyllabusOption, domainExamOptionResult.Value.SyllabusId);
if (examOptionResult.IsSuccess)
{
examOption = examOptionResult.Value;
}
combinedExamOptionResult = Result.Combine(domainExamOptionResult, examOptionResult);
}
var previousSession = sessionChronology.GetByName(row.PreviousSession);
int?prevSessionId = previousSession.HasValue ? previousSession.Value.Id : default(int?);
var regTypeOrError = RegistrationType.Create(
registrationTypeValue, row.GroupAward, row.PreviousCandidateNumber, row.PreviousCentreNumber, prevSessionId);
var registrationsError = Result.Combine(combinedExamOptionResult, regTypeOrError)
.OnSuccess(() => new Registration(regTypeOrError.Value, examOption, row.SpecialArrangements))
.Map(x => x);
registrationsResults.Add(registrationsError);
}
var cg = row.CandidateGuardian;
var candidateGuardianResult = CandidateGuardian.CreateOptional(cg.OtherNames, cg.FamilyName, cg.Telephone, cg.Relationship);
var childCollectionResult = Result.Ok(ChildCollection.Empty);
if (candidateGuardianResult.IsSuccess)
{
childCollectionResult = ChildCollection.Create(row.Candidate.ChildCollectionOption, candidateGuardianResult.Value);
}
var candidateRegistrationResult = Result.Ok();
Maybe <CandidateExamsRegistrations> candidateRegistration = null;
if (candidateResult.IsSuccess) // .On
{
if (identifierResult.IsSuccess)
{
candidateRegistration = allRegistrations.Find(candidateResult.Value, identifierResult.Value);
if (candidateRegistration.HasValue)
{
var result = CandidateExamsRegistrations.CreateNew(session, candidateResult.Value);
if (result.IsSuccess)
{
candidateRegistration = result.Value;
allRegistrations.Add(candidateRegistration.Value);
}
candidateRegistrationResult = Result.Combine(candidateRegistrationResult, result);
}
}
}
var combinedRegistrationsResults = Result.Combine(registrationsResults.ToArray());
return(Result.Combine(candidateResult, identifierResult, combinedRegistrationsResults,
candidateGuardianResult, childCollectionResult, candidateRegistrationResult)
.OnSuccess(() =>
candidateRegistration.Value.AddNewRegistrationGroup(
registrationsResults.Select(x => x.Value),
preparationCentreInfo,
identifierResult.Value,
childCollectionResult.Value
)));
}