public async Task <Result <StudentsResultsDto> > GetStudentsResultAsync(StudentsRequestDto <StudentResultType> request)
{
var errors = ValidateStudentsRequest(request);
if (errors.Any())
{
return(Result <StudentsResultsDto> .GetError(ErrorCode.ValidationError, string.Join(";\n", errors)));
}
var result = new StudentsResultsDto();
var studentGroupsIds = request.StudentGroupId.HasValue
? new List <long> {
request.StudentGroupId.Value
}
: await _dashboardRepository
.GetGroupsIdsByCourseIdAsync(request.CourseId.Value, request.StartDate, request.FinishDate);
var studentsIds = await _dashboardRepository.GetStudentsIdsByGroupIdsAsync(studentGroupsIds);
if (request.IncludeAnalytics.Contains(StudentResultType.AverageStudentMark))
{
result.AverageStudentsMarks = await _dashboardRepository
.GetStudentAverageMarksByStudentIdsAndGropsIdsAsync(studentsIds, studentGroupsIds);
}
if (request.IncludeAnalytics.Contains(StudentResultType.AverageStudentVisits))
{
result.AverageStudentVisits = await _dashboardRepository
.GetStudentsAverageVisitsByStudentIdsAndGroupsIdsAsync(studentsIds, studentGroupsIds);
}
return(Result <StudentsResultsDto> .GetSuccess(result));
}
public async Task <ActionResult> GetStudentsResults([FromBody] StudentsRequestDto <StudentResultType> request)
{
var results = await _dashboardService
.GetStudentsResultAsync(request);
return(results.ToActionResult());
}
private IEnumerable <string> ValidateStudentsRequest <T>(StudentsRequestDto <T> request)
where T : Enum
{
if (request == default)
{
yield return("Please provide request data");
yield break;
}
if (request.IncludeAnalytics == default || request.IncludeAnalytics.Length == 0)
{
yield return("Please provide 'IncludeAnalytics' parameters");
}
if (!request.CourseId.HasValue && !request.StudentGroupId.HasValue)
{
yield return("Please provide course or student group id");
}
}