public ActionResult Details(Guid id)
{
try
{
if (id == null)
{
throw new BusinessException(_messagesLoclizer["Passed parameter 'id' can not be null"]);
}
Election e = _electionBusiness.GetById(id);
if (e == null)
{
throw new BusinessException(_messagesLoclizer["Election not found"]);
}
return(View(_electionBusiness.ConvertElection_ToElectionViewModel(e)));
}
catch (BusinessException be)
{
//lets now create a suitable message for the user and store it inside a ViewBag (which is a Dynamic Object we can fill it
//by whatever we want
BusinessMessage bm = new BusinessMessage("Error", be.Message);
ViewBag.BusinessMessage = bm;
return(View());
}
catch (Exception E)
{
throw E;
}
}
public async Task <IActionResult> GetResultsOfElection([FromBody] Guid electionId)
{
//this method is called using ajax calls
//so if a business rule is not met we'll throw a businessException and catch it to create and internal server error and return its msg
//as json
_logger.LogInformation("Method Home/GetResultsOfElection() is called");
try
{
if (electionId == null || electionId == Guid.Empty)
{
throw new BusinessException(_messagesLoclizer["electionId can not be null."]);
}
//this method returns a list of candidates (of an election) ordered by their number of votes
var election = _electionBusiness.GetById(electionId);
if (election == null)
{
throw new BusinessException(_messagesLoclizer["Election is not found."]);
}
_logger.LogInformation("Calling method CandidateBusiness.GetCandidate_byElection()");
var candidates = _candidateBusiness.GetCandidate_byElection(election);
_logger.LogInformation("Calling _candidateBusiness.ConvertCandidateList_ToCandidateViewModelList() method");
List <CandidateViewModel> candidatesViewModel = _candidateBusiness.ConvertCandidateList_ToCandidateViewModelList(candidates);
//lets serialize the list of candidatesviewmodel as json object
JsonSerializerSettings settings = new JsonSerializerSettings {
DateFormatString = CultureInfo.CurrentCulture.DateTimeFormat.ShortDatePattern
};
var json = JsonConvert.SerializeObject(candidatesViewModel.OrderByDescending(c => c.VotesCount), settings);
return(Ok(json));
}
catch (BusinessException be)
{
//lets create an internal server error so that the response returned is an ERROR, and jQuery ajax will understand that.
HttpContext.Response.StatusCode = 500;
return(Json(new { Message = be.Message }));
}
catch (Exception E)
{
//lets create an internal server error so that jquery ajax understand that there was an error
HttpContext.Response.StatusCode = 500;
//leets log the exception msg to the console window
_logger.LogError("Exception, " + E.Message);
return(Json(new { Message = E.Message }));
//In above code I created an internal server error so that the response returned is an ERROR, and jQuery ajax will understand that.
}
}