public async Task <IHttpActionResult> Post([FromBody] StudentDTO StudentDTO)
{
string methodNameStr = $"StudentController().post()";
logger.Log(LogLevel.Info, $"{MakeLogStr4Entry(methodNameStr)} {StudentDTO}.");
if (!ModelState.IsValid)
{
logger.Log(LogLevel.Info, $"{MakeLogStr4Exit(methodNameStr)} {HttpStatusCode.BadRequest}: Modelstate is not valid.");
return(Content(HttpStatusCode.BadRequest, "The validation of the Data Transfer Object fails."));
}
using (var context = new SampDB())
{
using (var transaction = context.Database.BeginTransaction())
{
try
{
List <int> CourseIds = Get_MKeysFromDTO(StudentDTO);
var StudentData = GetData(StudentDTO, new Student());
var repos = new GenericDataRepository(context);
var httpStatusCode = await repos.InsertAsync <Student>(StudentData);
if (httpStatusCode == HttpStatusCode.OK)
{
context.SaveChanges();
httpStatusCode = await repos.UpdateJoinEntityAsync <Student, Course>(StudentData, Convert1DTo2D(CourseIds));
if (httpStatusCode == HttpStatusCode.OK)
{
context.SaveChanges();
transaction.Commit();
}
else
{
transaction.Rollback();
}
}
logger.Log(LogLevel.Info, $"{MakeLogStr4Exit(methodNameStr)} {httpStatusCode}.");
if (httpStatusCode == HttpStatusCode.OK)
{
return(Content(httpStatusCode, StudentData.Id.ToString()));
}
else
{
return(Content(httpStatusCode, httpStatusCode.ToString()));
}
}
catch (Exception e)
{
transaction.Rollback();
logger.Log(LogLevel.Error, $"{MakeLogStr4Exit(methodNameStr)}:\r\n{e}");
return(Content(HttpStatusCode.InternalServerError, HttpStatusCode.InternalServerError.ToString()));
}
}
}
}