public City Add(string name)
{
var model = this.cities.All().FirstOrDefault(d => d.Name == name);
if (model == null)
{
model = new City()
{
Name = name
};
this.cities.Add(model);
this.cities.SaveChanges();
}
return model;
}
public City Add(City model)
{
throw new NotImplementedException();
}