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);
}
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 FileBlobViewModel(FileBlobModel model)
{
this.BlobID = model.BlobID;
this.BlobName = model.BlobName;
this.BlobDescription = model.BlobDescription;
this.BlobExtension = model.BlobExtension;
this.BlobSize = ((model.BlobData.Length / 1024) / 1024) + " MB";
}
public FileBlobViewModel(FileBlobModel model)
{
this.BlobID = model.BlobID;
this.BlobName = model.BlobName;
this.BlobDescription = model.BlobDescription;
this.BlobExtension = model.BlobExtension;
this.BlobSize = ((model.BlobData.Length / 1024) / 1024) + " MB";
}
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 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 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 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 static CheckResult ValidateDelete(DSModel db, FileBlobModel model)
{
CheckResult res = new CheckResult(model);
return res;
}
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 DeleteFile(FileBlobViewModel model)
{
FileBlobModel mod = new FileBlobModel();
mod.BlobID = model.BlobID;
return this.DeleteFile(mod);
}
