public void NonIntuitive_ButSucceeds()
{
var engine = new Engine {
Cylinders = 6, Horsepower = 200
};
var tires = new TirePackage {
Size = 16, Weight = 40
};
var car = new PurchasedCar {
CustomerName = "Me"
};
var context = GetEntityContext();
// BAD: SetLink is not type safe and has poor readability
// Note: Order is important AddToEngines and AddToPurcasedCars must come first.
// Note: SetLink must come after calling AddTo*() on the context
context.AddToEngines(engine);
context.AddToTirePackages(tires);
context.AddToPurchasedCars(car);
context.SetLink(car, "Engine", engine);
context.SetLink(car, "Tires", tires);
context.SaveChanges(SaveChangesOptions.Batch);
}
public static TirePackage CreateTirePackage(int ID, int size, int weight)
{
TirePackage tirePackage = new TirePackage();
tirePackage.Id = ID;
tirePackage.Size = size;
tirePackage.Weight = weight;
return(tirePackage);
}
public void GoodInterface_ThrowsException()
{
var engine = new Engine {
Cylinders = 6, Horsepower = 200
};
var tires = new TirePackage {
Size = 16, Weight = 40
};
var car = new PurchasedCar {
CustomerName = "Me", Engine = engine, Tires = tires
};
var context = GetEntityContext();
context.AddToPurchasedCars(car);
// BAD: Throws "Resource not found for the segment 'PurchasedCar'" error
context.SaveChanges();
}
public static TirePackage CreateTirePackage(int ID, int size, int weight)
{
TirePackage tirePackage = new TirePackage();
tirePackage.Id = ID;
tirePackage.Size = size;
tirePackage.Weight = weight;
return tirePackage;
}
public void AddToTirePackages(TirePackage tirePackage)
{
base.AddObject("TirePackages", tirePackage);
}
public void AddToTirePackages(TirePackage tirePackage)
{
base.AddObject("TirePackages", tirePackage);
}