public Boolean IsEqual(UserPreferences other)
{
if (other == null)
{
return(false);
}
return(this.UserID == other.UserID &&
this.AccessToken == other.AccessToken &&
this.ProviderName == other.ProviderName &&
this.ProviderUri == other.ProviderUri &&
this.ConversationLimit == other.ConversationLimit &&
this.ActiveCategories == other.ActiveCategories);
}
public async Task <Boolean> CheckChanges(UserPreferences previous, ChangeCheckType type)
{
if ((type & ChangeCheckType.CategorySelection) == ChangeCheckType.CategorySelection)
{
// Update category status in the database
foreach (Category c in categories)
{
await DataAccessLayer.Current.UpdateOrAddCategoryAsync(c, CategoryKeepActive.Force);
}
// Update the UserPreferences
CurrentUser.ActiveCategories = GetCategoryList(CategorySet.Active);
await CurrentUser.Save();
}
HasChanged = !CurrentUser.IsEqual(previous);
return(HasChanged);
}
public async Task SetUserPreferencesAsync(UserPreferences prefs)
{
UserPreferences current = await GetUserPreferencesAsync();
if (current == null)
{
await database.InsertAsync(prefs);
}
else
{
String query = "update UserPreferences set UserID='" + prefs.UserID + "' ";
query += ", AccessToken='" + prefs.AccessToken + "' ";
query += ", ProviderName='" + prefs.ProviderName + "' ";
query += ", ProviderUri='" + prefs.ProviderUri + "' ";
query += ", ConversationLimit='" + prefs.ConversationLimit + "' ";
query += ", ActiveCategories='" + prefs.ActiveCategories + "'";
await database.QueryAsync <UserPreferences>(query);
}
}
public async Task InitAsync()
{
categories = new CategoryList();
await PopulateCategoriesFromDB();
providers = new List <AuthProvider>();
await PopulateAuthProvidersFromDB();
// The access token in the user preferences determines authentication status, as that token
// is used automatically in the HTTP request message hander. Nothing else is needed to
// authenticate on startup.
CurrentUser = await DataAccessLayer.Current.GetUserPreferencesAsync();
if (CurrentUser == null)
{
CurrentUser = new UserPreferences();
CurrentUser.ActiveCategories = GetCategoryList(CategorySet.Active);
}
// We could call ApplyBackendConfiguration here, but we will let the consumer of
// this data model do that when it wants. (See HomeViewModel.cs.)
}
