private void DeleteAssignment(object assignmentInstance)
{
AssignmentViewModel assignmentViewModel = assignmentInstance as AssignmentViewModel;
if (assignmentViewModel.Assignment != null && assignmentViewModel.Assignment.AssignmentId != 0)
{
using (AppDbContext db = App.GetContext())
{
db.Assignments.Remove(assignmentViewModel.Assignment);
db.SaveChanges();
}
}
Back();
}
private void SaveAssignment(object assignmentInstance)
{
AssignmentViewModel assignmentViewModel = assignmentInstance as AssignmentViewModel;
if (assignmentViewModel.Assignment != null)
{
if (!assignmentViewModel.IsValid)
{
Application.Current.MainPage.DisplayAlert("Предупреждение", "Задайте название задания, выберите рецепт и введите норму вылива", "Ok");
return;
}
if (assignmentViewModel.Size != null)
{
if (String.IsNullOrEmpty(assignmentViewModel.Unit))
{
Application.Current.MainPage.DisplayAlert("Предупреждение", "Задайте ед. изм. размера задания", "Ok");
return;
}
}
using (AppDbContext db = App.GetContext())
{
if (assignmentViewModel.Assignment.AssignmentId == 0)
{
db.Entry(assignmentViewModel.Assignment).State = EntityState.Added;
}
else
{
db.Assignments.Update(assignmentViewModel.Assignment);
}
db.SaveChanges();
}
}
Back();
}