public void DeleteImage(int imageId, string userId)
{
if (string.IsNullOrEmpty(userId))
{
throw new ArgumentNullException();
}
Image imageToDelete = Database.ImageRepository.Find(imageId);
if (imageToDelete == null)
{
throw new ArgumentNullException("Invalid image id");
}
if (imageToDelete.UserId != userId)
{
throw new ArgumentNullException("UserId of image does not coincide with userId in parameters");
}
var fullImagePath = Path.Combine(PhysicalDirectory.CurrentServerLocation,
imageToDelete.LocalPath);
try
{
Database.ImageRepository.Delete(imageToDelete);
Database.Commit();
PhysicalDirectory.DeleleImageFromServerPhysically(fullImagePath);
}
catch (Exception)
{
throw;
}
}
public void UpdateUserAvatar(byte[] buffer, string fileName, string userId)
{
string fileExtension = Path.GetExtension(fileName);
fileName = Guid.NewGuid() + fileExtension;
//should be information of registered user
UserProfile user = Database.UserRepository.Find(userId);
if (user == null)
{
throw new NullReferenceException("Invalid User id");
}
var localpath = Path.Combine(PhysicalDirectory.ImagesStoreFolder, user.Id, fileName);
//path to image location on server
var path = Path.Combine(PhysicalDirectory.CurrentServerLocation, localpath);
try
{
PhysicalDirectory.WriteImageOnServerPhysically(buffer, path);
//deletes old image if exists
if (!string.IsNullOrEmpty(user.AvatarUrl))
{
var oldpath = Path.Combine(PhysicalDirectory.CurrentServerLocation, user.Id, user.AvatarUrl);
PhysicalDirectory.DeleleImageFromServerPhysically(oldpath);
}
user.AvatarUrl = localpath;
Database.UserRepository.Update(user);
Database.Commit();
}
catch (Exception)
{
throw;
}
}
public void AddImage(UploadedImage image)
{
string fileExtension = Path.GetExtension(image.FileName);
string fileName = Guid.NewGuid() + fileExtension;
UserProfile user = Database.UserRepository.Find(image.UserId);
if (user == null)
{
throw new NullReferenceException("Invalid User id");
}
//will be written into photo data
var localpath = Path.Combine(PhysicalDirectory.ImagesStoreFolder, user.Id, fileName);
var fullImagePath = Path.Combine(PhysicalDirectory.CurrentServerLocation, localpath);
PhysicalDirectory.WriteImageOnServerPhysically(image.Buffer, fullImagePath);
Image newImage = new Image
{
User = user,
LocalPath = localpath,
ImageName = fileName,
Description = image.Description,
};
newImage.Tags = AddTags(image.Tags, newImage);
try
{
Database.ImageRepository.Add(newImage);
Database.Commit();
}
catch (Exception)
{
//Rolling Back happend an error
PhysicalDirectory.DeleleImageFromServerPhysically(fullImagePath);
throw;
}
}