public async Task <IActionResult> GetAudience(string audienceId)
        {
            return(await Task.Factory.StartNew <IActionResult>(() =>
            {
                try
                {
                    using (this.unitOfWork = new UniversityNavigatorUnitOfWork())
                    {
                        var rootPath = Directory.GetParent(this.webHostEnvironment.ContentRootPath).FullName;
                        var resultData = this.unitOfWork.AudienceRepository.Get().Where(aud => aud.AudienceId == audienceId)
                                         .Select(aud => new AudienceViewModel
                        {
                            AudienceId = aud.AudienceId,
                            Floor = aud.Floor,
                            Building = aud.Building,
                            ImageBytes = System.IO.File.ReadAllBytes(Path.Combine(rootPath, aud.AudienceImage.ImagePath))
                        }).ToList();

                        return Ok(resultData);
                    }
                }
                catch (Exception ex)
                {
                    return StatusCode(500, ex.Message);
                }
            }));
        }
        public async Task <IActionResult> GetAudienceImage(string audienceId)
        {
            return(await Task.Factory.StartNew <IActionResult>(() =>
            {
                using (this.unitOfWork = new UniversityNavigatorUnitOfWork())
                {
                    var rootPath = Directory.GetParent(this.webHostEnvironment.ContentRootPath).FullName;
                    var imagePath = this.unitOfWork.AudienceRepository.GetByID(audienceId)?.AudienceImage?.ImagePath;
                    if (imagePath == null)
                    {
                        return this.NotFound($"Image of audience with (Identifier={audienceId}) not found");
                    }

                    var imageStream = System.IO.File.OpenRead(Path.Combine(rootPath, imagePath));
                    return this.File(imageStream, "image/jpg");
                }
            }));
        }