// When the page is constructed, the client receives all pre-existing groups
// from the database. These groups are loaded into a temporary list which are
// then read into the ObservableCollection. This intermediary step was made
// necessary due to the fact that ObservableCollections cannot be assigned to Lists.
private async void LoadGroups()
{
_loadedGroups = await GroupDBService.LoadGroups();
foreach (var group in _loadedGroups)
{
this.LoadedGroups.Add(group);
}
}
// Using the assigned code, a new database is created in the Azure Cosmos DB with the appropriate collections.
private async void InitializeDB()
{
await GroupDBService.CreateDatabase(SubjectCode);
await GroupDBService.CreateDocumentCollection(SubjectCode, "Messages");
await GroupDBService.CreateDocumentCollection(SubjectCode, "Flashcards");
await GroupDBService.CreateDocumentCollection(SubjectCode, "Lease");
await GroupDBService.CreateDocumentCollection(SubjectCode, "FlashLease");
}
private async void CreateGroup()
{
// The user must both assign a name and a code or the group will not be created and published to the database.
if (SubjectCode == null || SubjectName == null)
{
return;
}
Group group = new Group()
{
GroupOwner = MainPageViewModel.CurrentGoogleUsername,
GroupSubjectCode = SubjectCode,
GroupSubjectName = SubjectName
};
Console.WriteLine(group.ToString());
await GroupDBService.UploadGroup(group);
InitializeDB();
await _navigationService.NavigateAsync("GroupSelectionPage");
}