public async Task <IActionResult> UploadDataByDatasetIdAsync(long id, IFormFile file)
{
if (file == null)
{
return(BadRequest(ResponseResult.Failed(ErrorCode.ValidationError, "File can't be empty.")));
}
var dataset = await _datasetRepository.GetDatasetByIdAsync(id);
if (dataset == null)
{
return(NotFound(ResponseResult.Failed(ErrorCode.Error, "Dataset isn't found.")));
}
if (dataset.IsImported)
{
return(BadRequest(ResponseResult.Failed(ErrorCode.Error, "Dataset can't be imported more than once.")));
}
var friendships = new List <Friendship>();
using (StreamReader streamReader = new StreamReader(file.OpenReadStream()))
{
string line;
while ((line = streamReader.ReadLine()) != null)
{
var fields = line.Split(' ');
friendships.Add(Friendship.New(long.Parse(fields[0]), long.Parse(fields[1]), dataset));
}
}
await _friendShipRepository.AddDataAsync(friendships);
dataset.Update();
await _datasetRepository.UpdateDatasetAsync(dataset);
return(Ok(ResponseResult.Succeeded()));
}