public void Export(string filename, IEnumerable <Package> packages)
{
using (ListContext db = new ListContext(filename))
{
db.Database.Migrate();
var workstation = db.WorkStations.FirstOrDefault(w => w.Name == Environment.MachineName);
if (workstation == null)
{
workstation = new WorkStation {
UniqueId = Guid.NewGuid(), Name = Environment.MachineName, InstalledPackages = new List <InstalledPackage>()
};
db.WorkStations.Add(workstation);
db.SaveChanges();
}
db.Entry(workstation)
.Collection(b => b.InstalledPackages)
.Load();
workstation.InstalledPackages.Clear();
db.SaveChanges();
workstation.InstalledPackages.AddRange(packages.Select(p => new InstalledPackage {
Id = p.Id, WorkStation = workstation
}));
db.SaveChanges();
}
}