public AddFileViewModel()
{
CmdOK = new Cmd(ExecuteOK);
CmdCancel = new Cmd(ExecuteCancel);
PickFile = new Cmd(PickFileCmd);
Param = new NewItem()
{
Name = "ATMega16",
Uri = "http://www.atmel.com/images/doc2466.pdf",
KeepLocalCopy = false,
Tags = "ATMega16 Atmel ATMega"
//Name = "Name",
//Uri = string.Empty,
//KeepLocalCopy = false,
//Tags = string.Empty,
};
}
public static void AddItem(NewItem param, ReportProgress progressReport)
{
// 0%
ReportProgress(progressReport, 0);
string[] sc = {";", " ", ","};
string[] tags = param.Tags.Split(sc, StringSplitOptions.RemoveEmptyEntries);
// check uri
bool isUriLocal = IsUriLocal(param.Uri);
/*
* Local URI
* [keep local] store to database
* [not keep] only link
*
* Web file
* [keep local] store to database
* [not keep] only link
*/
var item = new DocItem()
{
Uri = param.Uri,
Name = param.Name,
Rating = 3
};
// Download file
// 90%
if (isUriLocal)
{
// local filesystem
item.FileName = Path.GetFileName(param.Uri);
item.HashCode = HashCalc.GetHash(param.Uri);
}
else
{
var download = new WebDownload(param.Uri, (int p, string d) =>
{
int percentage = p * 90;
percentage /= 100;
ReportProgress(progressReport, percentage);
});
item.FileName = download.FileName;
item.HashCode = HashCalc.GetHash(download.Content);
}
ReportProgress(progressReport, 90);
// add DB record
// 100%
using (var db = new AppDataBase())
using(var transaction = db.Database.BeginTransaction())
{
// try to select existing tags
//var registeredTags = db.Tags.Select(x => x.Name).Intersect(tags, StringComparer.InvariantCultureIgnoreCase).ToArray();
var registeredTags = from i in db.Tags
where tags.Contains(i.Name.ToLower())
select i;
// save new tags
var newTags = tags.Except(registeredTags.Select(x => x.Name), StringComparer.InvariantCultureIgnoreCase);
item.Tags = new List<Tag>();
// add link to existing tags
foreach(var i in registeredTags)
{
item.Tags.Add(i);
}
// add new tags and link with document
foreach(var i in newTags)
{
var newTagRecord = db.Tags.Add(new Tag()
{
Name = i
});
item.Tags.Add(newTagRecord);
}
// save tags
db.SaveChanges();
// add item
db.Items.Add(item);
// save item
db.SaveChanges();
transaction.Commit();
}
}
