public async Task <bool> AddPhotoAsync(string title, string ownerId, byte[] content)
        {
            var fileName = await SavePhotoContentAsync(content);

            var entity = new PhotoEntity
            {
                Title    = title,
                OwnerId  = ownerId,
                FileName = fileName
            };
            await dbContext.Photos.AddAsync(entity);

            return(await dbContext.SaveChangesAsync() >= 0);
        }
 public async Task <bool> DeletePhotoAsync(PhotoEntity photo)
 {
     dbContext.Photos.Remove(photo);
     return(await dbContext.SaveChangesAsync() >= 0);
 }