public IActionResult Save(EntityViewModel viewModel)
{
var entity = _database.Find <Entity>(viewModel.Id) ?? new Entity();
if (entity == null)
{
entity = _database.Add(new Entity()).Entity;
}
entity.Id = viewModel.Id;
entity.CampaignId = viewModel.Campaign.Id;
_database.SaveChanges();
return(RedirectToAction("Index"));
}
