public async Task <string> UpdateOrAddRosterItem(bool onlyUpdate, RosterItem value)
{
using (var context = CreateContext()) {
var item = DbRosterItem.FromFSharp(value);
item.ApplicationUserId = user;
if (onlyUpdate)
{
var contextTrackedItem = await context.RosterItems.FindAsync(item.ApplicationUserId, item.Jid);
if (contextTrackedItem == null)
{
//foreach (var group in item.Groups) {
// group.ApplicationUserId = user;
// context.RosterItemGroups.Add (group);
// //context.Entry (group).State = EntityState.Added;
// //context.Entry (group.RosterGroup).State = EntityState.Added;
//}
context.RosterItems.Add(item);
//context.Entry (item).State = EntityState.Modified;
}
else
{
System.Diagnostics.Debug.Assert(contextTrackedItem.ApplicationUserId == user);
// delete all groups
context.RosterItemGroups.RemoveRange(contextTrackedItem.Groups);
//from ri in context.RosterItemGroups
//where ri.RosterItemId == contextTrackedItem.Jid && ri.ApplicationUserId == contextTrackedItem.ApplicationUserId
//select ri);
context.Entry(contextTrackedItem).CurrentValues.SetValues(item);
contextTrackedItem.Groups.Clear();
foreach (var group in item.Groups)
{
group.ApplicationUserId = contextTrackedItem.ApplicationUserId;
group.RosterItemId = contextTrackedItem.Jid;
group.RosterItem = contextTrackedItem;
contextTrackedItem.Groups.Add(group);
}
}
}
else
{
context.RosterItems.Add(item);
}
var change =
new DbRosterChange()
{
Version = await NextVersion(context),
ApplicationUserId = user,
Jid = value.Jid.BareId,
ChangeType = DbChangeType.Set
};
context.RosterChanges.Add(change);
//context.RosterChanges.Add (change);
return(await SaveNextVersion(context));
}
}
public async Task <string> DeleteItem(JabberId value)
{
using (var context = CreateContext()) {
var jid = value.BareId;
context.RosterItems.RemoveRange(await
(from item in context.RosterItems
where item.ApplicationUserId == user
where item.Jid == jid
select item).ToListAsync());
var change =
new DbRosterChange()
{
Version = await NextVersion(context),
ApplicationUserId = user,
Jid = jid,
ChangeType = DbChangeType.Delete
};
//user.RosterChanges.Add (change);
context.RosterChanges.Add(change);
return(await SaveNextVersion(context));
}
}