public CheckResult AttachMultipleFiles(string[] files)
{
using (var db = DB.GetContext())
{
KeyBinder key = new KeyBinder();
try
{
foreach (string file in files)
{
FileBlobModel mod = new FileBlobModel();
mod.BlobName = Path.GetFileNameWithoutExtension(file);
mod.BlobExtension = Path.GetExtension(file);
mod.BlobData = File.ReadAllBytes(file);
mod.DriverID = this.CreationInfo.DriverID;
FileBlobRepository.SaveBlob(db, key, mod);
}
db.SaveChanges();
key.BindKeys();
return(new CheckResult());
}
catch (Exception ex)
{
key.RollbackKeys();
return(new CheckResult(ex));
}
}
}
public CheckResult SaveFile(FileBlobModel model)
{
if (!model.IsChanged)
{
return(new CheckResult(model));
}
using (DSModel db = DB.GetContext())
{
var check = FileBlobValidator.ValidateSave(db, model);
if (check.Failed)
{
return(check);
}
KeyBinder key = new KeyBinder();
try
{
FileBlobRepository.SaveBlob(db, key, model);
db.SaveChanges();
key.BindKeys();
model.IsChanged = false;
return(new CheckResult(model));
}
catch (Exception ex)
{
key.RollbackKeys();
return(new CheckResult(ex));
}
}
}
public static void SaveBlob(DSModel db, KeyBinder key, FileBlobModel model)
{
if (db == null)
{
throw new ArgumentNullException("db");
}
if (key == null)
{
throw new ArgumentNullException("key");
}
if (model == null)
{
throw new ArgumentNullException("model");
}
model.UserID = GLOB.User.UserID;
model.LastUpdateTime = DateTime.Now;
if (model.BlobID == 0)
{
InsertBlob(db, key, model);
}
else
{
UpdateBlob(db, key, model);
}
}
public CheckResult DeleteFile(FileBlobViewModel model)
{
FileBlobModel mod = new FileBlobModel();
mod.BlobID = model.BlobID;
return(this.DeleteFile(mod));
}
private static void UpdateBlob(DSModel db, KeyBinder key, FileBlobModel model)
{
FileBlob poco = db.FileBlobs.Where(b => b.BlobID == model.BlobID).FirstOrDefault();
if (poco == null)
{
throw new ArgumentException("File does not exist!", "BlobID");
}
model.Map(poco);
}
private static void InsertBlob(DSModel db, KeyBinder key, FileBlobModel model)
{
key.AddRollback(model.BlobID, model, model.GetName(p => p.BlobID));
FileBlob poco = new FileBlob();
model.Map(poco);
db.Add(poco);
key.AddKey(poco, model, model.GetName(p => p.BlobID));
}
public static CheckResult ValidateSave(DSModel db, FileBlobModel model)
{
CheckResult res = new CheckResult(model);
if (string.IsNullOrWhiteSpace(model.BlobName))
{
res.AddError("File name cannot bet empty!", model.GetName(p => p.BlobName));
}
if (string.IsNullOrWhiteSpace(model.BlobExtension))
{
res.AddError("File extension cannot be empty!", model.GetName(p => p.BlobExtension));
}
if (model.BlobData == null || model.BlobData.Length == 0)
{
res.AddError("File data cannot be empty!", model.GetName(p => p.BlobData));
}
return(res);
}
public static void DeleteBlob(DSModel db, KeyBinder key, FileBlobModel model)
{
if (db == null)
{
throw new ArgumentNullException("db");
}
if (key == null)
{
throw new ArgumentNullException("key");
}
if (model == null)
{
throw new ArgumentNullException("model");
}
db.FileBlobs
.Where(b => b.BlobID == model.BlobID)
.DeleteAll();
}
public static CheckResult ValidateDelete(DSModel db, FileBlobModel model)
{
CheckResult res = new CheckResult(model);
return(res);
}