public async Task <IActionResult> AddAdvertisement(AddAdvertisementRequest request)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
if (!ModelState.IsValid)
{
return(View());
}
var userId = User.Claims.GetUserId();
try
{
await _adService.AddAdvertisement(request, userId);
}
catch (Exception ex)
{
ViewBag.Message = ex.Message;
return(View());
}
return(RedirectToAction("Index"));
}
/// <summary>
/// Добавляет объявление
/// </summary>
/// <param name="request"></param>
/// <returns></returns>
public async Task <int> Add(AddAdvertisementRequest request)
{
using (var transaction = await _dataContext.Database.BeginTransactionAsync(System.Data.IsolationLevel.Serializable))
{
try
{
var currentCount = await _dataContext.Advertisements.CountAsync(a => a.UserId == _user.Id);
if (currentCount >= _options.MaxAdsPerUser)
{
throw new Exception("Вы исчерпали лимит объявлений.");
}
var id = Guid.NewGuid();
var saveFileRequest = new SaveFileRequest
{
FileName = $"{id}",
DirectoryName = FileDirectories.Advertisements,
UploadedFile = request.Image
};
var filesInfo = request.Image != null ? await _fileService.Save(saveFileRequest) : new SaveFileResponse
{
Url = "", Extension = ""
};
var advertisement = new Data.Entities.Advertisement
{
Id = id,
ImageUrl = filesInfo.Url,
ImageExtension = filesInfo.Extension,
ImagePath = filesInfo.Path,
Text = request.Text,
UserId = _user.Id
};
await _dataContext.AddAsync(advertisement);
await _dataContext.SaveChangesAsync();
await transaction.CommitAsync();
return(advertisement.Number);
}
catch (Exception exception)
{
await transaction.RollbackAsync();
_logger.LogError(exception.Message);
throw exception;
}
}
}
public async Task <ActionResult <int> > Add([FromForm] AddAdvertisementRequest request)
{
try
{
var res = await _advService.Add(request);
return(new OkObjectResult(res));
}
catch (Exception exception)
{
_logger.LogError(exception.Message);
throw exception;
}
}
public async Task AddAdvertisement(AddAdvertisementRequest request, Guid userId)
{
if (request is null)
{
throw new ArgumentNullException(nameof(request));
}
using var transaction = _dataProvider.CreateTransaction(IsolationLevel.Serializable);
var adsCount = _dataProvider.Get <AdDb>(i => i.UserId == userId).Count();
if (adsCount >= _userOptions.UserAdsCountLimit)
{
throw new Exception($"You cannot add more than {_userOptions.UserAdsCountLimit} ads");
}
string imagePath = null;
if (request.Image != null)
{
imagePath = _imageHelper.UploadImageAndGetName(request.Image).Result;
}
var currentAd = new AdDb
{
ImagePath = imagePath,
CreatedDate = DateTime.Now,
Title = request.Title,
Text = request.Text,
UserId = userId
};
await _dataProvider.Insert(currentAd);
transaction.Commit();
}
