public Boolean edit(HinhAnh kt)
{
if (this.is_exist(kt.id))
{
HinhAnh obj = this.get_by_id(kt.id);
obj.duongdan = kt.duongdan;
db.SaveChanges();
return true;
}
return false;
}
public List<HinhAnh> upload(HttpServerUtilityBase server_context, HttpFileCollectionBase file_list)
{
Debug.WriteLine("file count: "+file_list.Count);
List<HinhAnh> re=new List<HinhAnh>();
//pre setting
int max_width_height = 300;
String relative_directory = "~/_Upload/HinhAnh/";
//
String server_path = "";
String server_path_thumb = "";
foreach (string file_name in file_list)
{
Debug.WriteLine("file name: " + file_name);
HttpPostedFileBase hpf = file_list[file_name];
String random_prefix = TextLibrary.GetSHA1HashData(DateTime.Now.ToLongDateString() + DateTime.Now.ToLongTimeString()).Substring(0,5);
server_path = server_context.MapPath(Path.Combine(relative_directory, random_prefix + Path.GetFileName(hpf.FileName)));
server_path_thumb = server_context.MapPath(Path.Combine(relative_directory, "_thumb_" + random_prefix + Path.GetFileName(hpf.FileName)));
if (hpf.ContentLength == 0)
{
continue;
}
HinhAnh hinhanh = new HinhAnh();
//save origin
hpf.SaveAs(server_path);
hinhanh.duongdan = random_prefix+hpf.FileName;
//save thumb
Image imgOriginal = Image.FromFile(server_path);
Image hinhanh_thumb = ImageLibrary.ScaleBySize(imgOriginal, max_width_height);
imgOriginal.Dispose();
hinhanh_thumb.Save(server_path_thumb);
hinhanh_thumb.Dispose();
hinhanh.duongdan_thumb = "_thumb_" + random_prefix+hpf.FileName;
//add to re
re.Add(hinhanh);
Debug.WriteLine("uploaded: " + server_path);
Debug.WriteLine("uploaded: " + server_path_thumb);
}
return re;
}
public int add(HinhAnh dt)
{
db.ds_hinhanh.Add(dt);
db.SaveChanges();
return db.ds_hinhanh.Max(x => x.id);
}
//method
public HinhAnh _get_hinhanh_macdinh()
{
HinhAnh re= this.ds_hinhanh.Where(x => x.macdinh == true).FirstOrDefault();
if (re == null)
{
re = new HinhAnh();
re.duongdan = "default_no_image.jpg";
re.duongdan_thumb = "_thumb_default_no_image.jpg";
re.macdinh = true;
re.sanpham = this;
}
return re;
}
