public EditQuestionResponse EditQuestion(EditQuestionRequest request)
{
EditQuestionResponse response = new EditQuestionResponse();
AuthToken authToken = null;
try
{
Common.Helpers.ValidationHelper.ValidateRequiredField(request.AuthToken, "Auth Token");
Common.Helpers.ValidationHelper.ValidateRequiredField(request.AntiForgeryToken, "Anti Forgery Token");
Common.Helpers.ValidationHelper.ValidateRequiredField(request.Name, "Name");
Common.Helpers.ValidationHelper.ValidateStringLength(request.Name, "Name", Constants.MaxNameLength);
Common.Helpers.ValidationHelper.ValidateStringLength(request.QuestionBody, "Problem Description", Constants.MaxBlobLength);
foreach (QuestionTest test in request.Tests)
{
Common.Helpers.ValidationHelper.ValidateRequiredField(test.Name, "Test Name");
Common.Helpers.ValidationHelper.ValidateRequiredField(test.Input, "Test Input");
Common.Helpers.ValidationHelper.ValidateRequiredField(test.ExpectedOutput, "Test Output");
Common.Helpers.ValidationHelper.ValidateStringLength(test.Name, "Test Name", Constants.MaxNameLength);
Common.Helpers.ValidationHelper.ValidateStringLength(test.Input, "Test Input", Constants.MaxBlobLength);
Common.Helpers.ValidationHelper.ValidateStringLength(test.ExpectedOutput, "Test Output", Constants.MaxBlobLength);
}
if (!UserController.ValidateSession(request.AuthToken, out authToken))
{
throw new AuthenticationException("Authentication failed.");
}
UserController.ValidateAntiForgeryToken(request.AntiForgeryToken, authToken);
DbContext context = DataController.CreateDbContext();
Common.Helpers.ValidationHelper.AssertFalse(context.InterviewQuestions
.Where(iq => iq.QuestionID == request.QuestionID)
.Where(iq => iq.Interview.StartedDate.HasValue)
.Any(),
"This question cannot be edited as it has been used in existing interviews.");
if (string.IsNullOrEmpty(request.Name))
{
throw new Common.Exceptions.ValidationException("Please fill in the name field.");
}
E::Question question = context.Questions
.Where(q => q.ID == request.QuestionID)
.FirstOrDefault();
question.Name = request.Name;
question.LastUpdatedBy = authToken.Username;
question.LastUpdatedDate = DateTime.UtcNow;
DataController.UploadBlob(question.QuestionBody.ToString(), request.QuestionBody);
if (question.QuestionTypeID == (short)QuestionType.Standard)
{
var tests = TestsController.FromJson(DataController.DownloadBlob(question.Tests.Value.ToString()));
IList<TestsController.Test> newTests = new List<TestsController.Test>();
foreach (QuestionTest test in request.Tests)
{
TestsController.Test newTest = new TestsController.Test();
newTest.ID = Guid.NewGuid();
newTest.Name = test.Name;
newTest.Input = test.Input;
newTest.ExpectedOutput = test.ExpectedOutput;
newTest.ID = Guid.NewGuid();
newTests.Add(newTest);
}
response.TestIDs = tests.Select(t => t.ID).ToArray();
DataController.UploadBlob(question.Tests.Value.ToString(), TestsController.ToJson(newTests.ToArray()));
}
context.SaveChanges();
}
catch (AuthenticationException ex)
{
throw new WebFaultException<string>(ex.Message, System.Net.HttpStatusCode.BadRequest);
}
catch (Common.Exceptions.ValidationException ex)
{
throw new WebFaultException<string>(ex.Message, System.Net.HttpStatusCode.BadRequest);
}
catch (Exception ex)
{
ExceptionHelper.Log(ex, authToken == null ? null : authToken.Username);
throw new WebFaultException<string>("An unknown error has occurred.", System.Net.HttpStatusCode.InternalServerError);
}
return response;
}
public CreateQuestionResponse CreateQuestion(CreateQuestionRequest request)
{
CreateQuestionResponse response = new CreateQuestionResponse();
AuthToken authToken = null;
try
{
Common.Helpers.ValidationHelper.ValidateRequiredField(request.AuthToken, "Auth Token");
Common.Helpers.ValidationHelper.ValidateRequiredField(request.AntiForgeryToken, "Anti Forgery Token");
Common.Helpers.ValidationHelper.ValidateRequiredField(request.Name, "Name");
Common.Helpers.ValidationHelper.ValidateStringLength(request.Name, "Name", Constants.MaxNameLength);
Common.Helpers.ValidationHelper.ValidateStringLength(request.QuestionBody, "Hidden Code", Constants.MaxBlobLength);
foreach (QuestionTest test in request.Tests)
{
Common.Helpers.ValidationHelper.ValidateRequiredField(test.Name, "Test Name");
Common.Helpers.ValidationHelper.ValidateRequiredField(test.Input, "Test Input");
Common.Helpers.ValidationHelper.ValidateRequiredField(test.ExpectedOutput, "Test Output");
Common.Helpers.ValidationHelper.ValidateStringLength(test.Name, "Test Name", Constants.MaxNameLength);
Common.Helpers.ValidationHelper.ValidateStringLength(test.Input, "Test Input", Constants.MaxBlobLength);
Common.Helpers.ValidationHelper.ValidateStringLength(test.ExpectedOutput, "Test Expected Output", Constants.MaxBlobLength);
}
if (!UserController.ValidateSession(request.AuthToken, out authToken))
{
throw new AuthenticationException("Authentication failed.");
}
UserController.ValidateAntiForgeryToken(request.AntiForgeryToken, authToken);
DbContext context = DataController.CreateDbContext();
E::Question newQuestion = new E::Question();
newQuestion.ID = Guid.NewGuid();
newQuestion.Name = request.Name;
newQuestion.QuestionTypeID = (short)QuestionType.Standard;
newQuestion.QuestionBody = Guid.NewGuid();
newQuestion.Tests = Guid.NewGuid();
newQuestion.CreatedBy = authToken.Username;
newQuestion.CreatedDate = DateTime.UtcNow;
newQuestion.LastUpdatedBy = authToken.Username;
newQuestion.LastUpdatedDate = DateTime.UtcNow;
DataController.UploadBlob(newQuestion.QuestionBody.ToString(), request.QuestionBody);
IList<TestsController.Test> tests = new List<TestsController.Test>();
foreach (QuestionTest test in request.Tests)
{
TestsController.Test newTest = new TestsController.Test();
newTest.ID = Guid.NewGuid();
newTest.Name = test.Name;
newTest.Input = test.Input;
newTest.ExpectedOutput = test.ExpectedOutput;
newTest.ID = Guid.NewGuid();
tests.Add(newTest);
}
response.TestIDs = tests.Select(t => t.ID).ToArray();
DataController.UploadBlob(newQuestion.Tests.Value.ToString(), TestsController.ToJson(tests.ToArray()));
context.Questions.Add(newQuestion);
context.SaveChanges();
response.QuestionID = newQuestion.ID;
}
catch (AuthenticationException ex)
{
throw new WebFaultException<string>(ex.Message, System.Net.HttpStatusCode.BadRequest);
}
catch (Common.Exceptions.ValidationException ex)
{
throw new WebFaultException<string>(ex.Message, System.Net.HttpStatusCode.BadRequest);
}
catch (Exception ex)
{
ExceptionHelper.Log(ex, authToken == null ? null : authToken.Username);
throw new WebFaultException<string>("An unknown error has occurred.", System.Net.HttpStatusCode.InternalServerError);
}
return response;
}
