private void ShowLesson()
{
ShowModifyLessonSubView = true;
using (var db = Database.Instance.GetConnection())
{
var lessonsInDatabase = db.Table <Lesson>().Where(l => l.UserId == CurrentUser.Id && l.Name == CurrentLesson.Name);
if (lessonsInDatabase.Count() != 1)
{
CurrentLessonWords.Clear();
Lessons.Remove(CurrentLesson);
CurrentLesson = null;
return;
}
CurrentLesson = lessonsInDatabase.First();
CurrentLessonWords = new ObservableCollection <Word>();
CurrentLessonWords.CollectionChanged += CurrentLessonWords_CollectionChanged;
foreach (var word in db.Table <Word>().Where(w => w.LessonId == CurrentLesson.Id))
{
CurrentLessonWords.Add(word);
}
CurrentEditingWord = new Word();
OnPropertyChanged("CurrentEditingWord");
OnPropertyChanged("CurrentLessonWords");
OnPropertyChanged("CurrentLesson");
}
}
public bool LessonRemove(string name)
{
if (Lessons.Contains(name))
{
Lessons.Remove(name);
return(true);
}
else
{
return(false);
}
}
private void DeleteSelectedLesson(object p)
{
Lesson lessonToRemove = Lessons.Where(l => l.Name.Equals(p as string)).First();
Lessons.Remove(lessonToRemove);
using (var db = Database.Instance.GetConnection())
{
foreach (Word word in CurrentLessonWords)
{
RemoveWordIfExists(db, word);
}
RemoveLessonIfExists(db, lessonToRemove);
}
}
public void RemoveLesson(Lesson lesson)
{
Lessons.Remove(lesson);
SaveLessons();
}