private bool CheckInputEditLearnRequest(EDCLearnRequestEditBindingModel model)
{
if (model == null)
{
return(false);
}
if (model.Date == null || model.Time == null ||
model.Date.Length == 0 || model.Time.Length == 0)
{
return(false);
}
return(true);
}
public async Task <IHttpActionResult> EditLearnRequest(int id, EDCLearnRequestEditBindingModel model)
{
if (!CheckInputEditLearnRequest(model))
{
var msg = "There is something wrong with input.";
var modelError = EDCExceptionFactory.GenerateHttpError(msg, EDCWebServiceErrorType.Error, true);
var response = Request.CreateErrorResponse(HttpStatusCode.BadRequest, modelError);
throw new HttpResponseException(response);
}
var learnRequest = await db.LearnRequests.Include(p => p.RegisteredStudents)
.Where(p => p.ID == id).SingleOrDefaultAsync();
if (learnRequest == null)
{
var msg = "Can't find the learn request.";
var modelError = EDCExceptionFactory.GenerateHttpError(msg, EDCWebServiceErrorType.Error, true);
var response = Request.CreateErrorResponse(HttpStatusCode.NotFound, modelError);
throw new HttpResponseException(response);
}
//see if the request new time and date is already existed
var times = TimeConversionUtils.GetStartAndEndTime(model.Time);
var startTime = times[0];
var endTime = times[1];
var newRequest = await db.LearnRequests.Include(p => p.RegisteredStudents).Where(p => p.Date == model.Date &&
p.StartTime == startTime &&
p.EndTime == endTime).SingleOrDefaultAsync();
if (newRequest != null)
{
var already = newRequest.RegisteredStudents.Where(p => p.StudentName == User.Identity.Name).SingleOrDefault();
if (already != null)
{
var msg = "Your requested new date and time are already existed.";
var modelError = EDCExceptionFactory.GenerateHttpError(msg, EDCWebServiceErrorType.Warning, true);
var response = Request.CreateErrorResponse(HttpStatusCode.BadRequest, modelError);
throw new HttpResponseException(response);
}
}
//need to remove the student from the current request
var student = await db.Students.FindAsync(User.Identity.Name);
learnRequest.RegisteredStudents.Remove(student);
if (newRequest == null)
{
newRequest = new EDCLearnRequest
{
Date = model.Date,
StartTime = times[0],
EndTime = times[1],
RegisteredStudents = new List <EDCStudent>()
};
newRequest.RegisteredStudents.Add(student);
string teacherName = "*****@*****.**";
db.AssignTeacherToLearnRequest(newRequest, teacherName);
db.LearnRequests.Add(newRequest);
//db.RunCommand(sql, new SqlParameter("@Id",id));
try
{
// await db.SaveChangesToDbAsync();
db.SaveChangesToDb();
}
catch (DbUpdateConcurrencyException ex)
{
var entry = ex.Entries.Single();
var values = entry.CurrentValues;
}
}
else
{
newRequest.RegisteredStudents.Add(student);
db.SetEntityModified <EDCLearnRequest>(newRequest);
// db.RunCommand(sql, new SqlParameter("@Id", id));
try
{
// await db.SaveChangesToDbAsync();
db.SaveChangesToDb();
}
catch (DbUpdateConcurrencyException ex)
{
var entry = ex.Entries.Single();
var values = entry.CurrentValues;
}
}
return(StatusCode(HttpStatusCode.NoContent));
}
