/// <summary>
/// Initializes a new instance of the SessionViewModel class.
/// </summary>
public SessionViewModel()
{
Messenger.Default.Register<SessionSelectionChangedMessage>(this, delegate(SessionSelectionChangedMessage message) {
this.Session = message.Session;
});
if (IsInDesignMode)
{
Session = new Session
{
Title = "Some Really Big Long Title",
TagList = "FOO, ASP.NET, MICROSOFT",
Room = "Pootzy",
Abstract = @"<p>Some <b>great</b> stuff in this one!</p><p>Read all about the great stuff that is great and plus it's not bad too (so, it's really awesome!)</p>"
//SessionSpeakers = new System.Data.Linq.EntitySet<SessionSpeakers>() { new SessionSpeakers { Session = Session, Speaker = new Speaker { FirstName = "Jar Jar", LastName = "Binks" } } }
};
}
else
{
// Code runs "for real": Connect to service, etc...
}
}
internal void SendSessionNavigatingMessage(Session session)
{
Messenger.Default.Send<SessionSelectionChangedMessage>(new SessionSelectionChangedMessage { Session = session });
}
void SessionDownloadStringCompleted(object sender, DownloadStringCompletedEventArgs e)
{
if (e.Error == null)
{
string stringArray = e.Result.Substring(12, e.Result.Length - 13);
ReportSessionProgress("Reading data...", 80);
List<SessionDto> sessions = JsonConvert.DeserializeObject<List<SessionDto>>(stringArray);
ReportSessionProgress("Preparing to save data...", 85);
ConferenceDataContext dc = new ConferenceDataContext("isostore:/conference.sdf");
dc.Sessions.DeleteAllOnSubmit(dc.Sessions);
dc.SubmitChanges();
ReportSessionProgress("Saving to device...", 90);
List<Session> sessionList = new List<Session>();
foreach (var ssn in sessions.OrderBy(r=>r.title))
{
// check to see if the tags exist already, if not add them
foreach (var tag in ssn.tags)
{
if (dc.Tags.Where(t=>t.Title == tag).Count() == 0)
{
dc.Tags.InsertOnSubmit(new Tag { Title = tag, SessionTags = new EntitySet<SessionTags>() });
dc.SubmitChanges();
}
}
// create a db version of the record
Session s = new Session
{
Abstract = ssn.@abstract,
Finish = ssn.finish,
Room = ssn.room,
SessionId = ssn.id,
Start = ssn.start,
TagList = string.Join(", ", ssn.tags).ToUpper(),
Title = ssn.title,
SessionSpeakers = new EntitySet<SessionSpeakers>(),
SessionTags = new EntitySet<SessionTags>()
};
// update the db
dc.Sessions.InsertOnSubmit(s);
dc.SubmitChanges();
// build up the speaker list
foreach (int speakerId in ssn.speakers)
{
Speaker speaker = dc.Speakers.Where(sp => sp.SpeakerId == speakerId).First();
s.SessionSpeakers.Add(new SessionSpeakers { Speaker = speaker, Session = s });
dc.SubmitChanges();
}
// default is a speaker if none are present
if (s.SessionSpeakers.Count == 0)
s.SessionSpeakers.Add(new SessionSpeakers { Session = s, Speaker = dc.Speakers.Where(k => k.FirstName == "TBD").First() });
// build up the tag list
foreach (var item in ssn.tags)
{
Tag tag = dc.Tags.Where(t => t.Title == item).First();
s.SessionTags.Add(new SessionTags { Session = s, Tag = tag });
dc.SubmitChanges();
}
}
ReportSessionProgress("Sessions downloaded and saved.", 95);
int sessionCount = dc.Sessions.Count();
int speakersCount = dc.Speakers.Count();
ReportCompletedRefresh(sessionCount, speakersCount);
dc.Dispose();
dc = null;
}
else
{
NetworkWentBoom();
}
}
