public void Navigation_fixup_happens_when_new_entities_are_tracked()
{
using (var context = new FixupContext())
{
context.Add(new Category { Id = 11 });
context.Add(new Category { Id = 12 });
context.Add(new Category { Id = 13 });
context.Add(new Product { Id = 21, CategoryId = 11 });
AssertAllFixedUp(context);
context.Add(new Product { Id = 22, CategoryId = 11 });
AssertAllFixedUp(context);
context.Add(new Product { Id = 23, CategoryId = 11 });
AssertAllFixedUp(context);
context.Add(new Product { Id = 24, CategoryId = 12 });
AssertAllFixedUp(context);
context.Add(new Product { Id = 25, CategoryId = 12 });
AssertAllFixedUp(context);
context.Add(new SpecialOffer { Id = 31, ProductId = 22 });
AssertAllFixedUp(context);
context.Add(new SpecialOffer { Id = 32, ProductId = 22 });
AssertAllFixedUp(context);
context.Add(new SpecialOffer { Id = 33, ProductId = 24 });
AssertAllFixedUp(context);
context.Add(new SpecialOffer { Id = 34, ProductId = 24 });
AssertAllFixedUp(context);
context.Add(new SpecialOffer { Id = 35, ProductId = 24 });
AssertAllFixedUp(context);
Assert.Equal(3, context.ChangeTracker.Entries<Category>().Count());
Assert.Equal(5, context.ChangeTracker.Entries<Product>().Count());
Assert.Equal(5, context.ChangeTracker.Entries<SpecialOffer>().Count());
}
}
public void Navigation_fixup_is_non_destructive_to_existing_graphs()
{
using (var context = new FixupContext())
{
var category11 = new Category { Id = 11 };
var category12 = new Category { Id = 12 };
var category13 = new Category { Id = 13 };
var product21 = new Product { Id = 21, CategoryId = 11, Category = category11 };
var product22 = new Product { Id = 22, CategoryId = 11, Category = category11 };
var product23 = new Product { Id = 23, CategoryId = 11, Category = category11 };
var product24 = new Product { Id = 24, CategoryId = 12, Category = category12 };
var product25 = new Product { Id = 25, CategoryId = 12, Category = category12 };
category11.Products.Add(product21);
category11.Products.Add(product22);
category11.Products.Add(product23);
category12.Products.Add(product24);
category12.Products.Add(product25);
var specialOffer31 = new SpecialOffer { Id = 31, ProductId = 22, Product = product22 };
var specialOffer32 = new SpecialOffer { Id = 32, ProductId = 22, Product = product22 };
var specialOffer33 = new SpecialOffer { Id = 33, ProductId = 24, Product = product24 };
var specialOffer34 = new SpecialOffer { Id = 34, ProductId = 24, Product = product24 };
var specialOffer35 = new SpecialOffer { Id = 35, ProductId = 24, Product = product24 };
product22.SpecialOffers.Add(specialOffer31);
product22.SpecialOffers.Add(specialOffer32);
product24.SpecialOffers.Add(specialOffer33);
product24.SpecialOffers.Add(specialOffer34);
product24.SpecialOffers.Add(specialOffer35);
context.Add(category11);
AssertAllFixedUp(context);
context.Add(category12);
AssertAllFixedUp(context);
context.Add(category13);
AssertAllFixedUp(context);
context.Add(product21);
AssertAllFixedUp(context);
context.Add(product22);
AssertAllFixedUp(context);
context.Add(product23);
AssertAllFixedUp(context);
context.Add(product24);
AssertAllFixedUp(context);
context.Add(product25);
AssertAllFixedUp(context);
context.Add(specialOffer31);
AssertAllFixedUp(context);
context.Add(specialOffer32);
AssertAllFixedUp(context);
context.Add(specialOffer33);
AssertAllFixedUp(context);
context.Add(specialOffer34);
AssertAllFixedUp(context);
context.Add(specialOffer35);
AssertAllFixedUp(context);
Assert.Equal(3, category11.Products.Count);
Assert.Equal(2, category12.Products.Count);
Assert.Equal(0, category13.Products.Count);
Assert.Equal(0, product21.SpecialOffers.Count);
Assert.Equal(2, product22.SpecialOffers.Count);
Assert.Equal(0, product23.SpecialOffers.Count);
Assert.Equal(3, product24.SpecialOffers.Count);
Assert.Equal(0, product25.SpecialOffers.Count);
Assert.Equal(3, context.ChangeTracker.Entries<Category>().Count());
Assert.Equal(5, context.ChangeTracker.Entries<Product>().Count());
Assert.Equal(5, context.ChangeTracker.Entries<SpecialOffer>().Count());
}
}
private void Principal_nav_set_unidirectional_impl(EntityState entityState, bool?graph)
{
using (var context = new FixupContext())
{
var principal = new ParentPN {
Id = 77
};
if (graph == null)
{
context.Entry(principal).State = entityState;
}
var dependent = new ChildPN {
Name = "1"
};
principal.Child1 = dependent;
var subDependent = new SubChildPN {
Name = "1S"
};
dependent.SubChild = subDependent;
if (graph == null)
{
context.ChangeTracker.DetectChanges();
}
else if (graph == true)
{
context.ChangeTracker.TrackGraph(principal, e => e.Entry.State = entityState);
}
else
{
switch (entityState)
{
case EntityState.Added:
context.Add(principal);
break;
case EntityState.Unchanged:
context.Attach(principal);
break;
case EntityState.Modified:
context.Update(principal);
break;
}
}
Assert.Equal(3, context.ChangeTracker.Entries().Count());
AssertFixup(
context,
() =>
{
Assert.Equal(entityState, context.Entry(principal).State);
Assert.Same(dependent, principal.Child1);
Assert.Null(principal.Child2);
var dependentEntry = context.Entry(dependent);
Assert.Equal(principal.Id, dependentEntry.Property("ParentId").CurrentValue);
Assert.Equal(graph == null ? EntityState.Added : entityState, dependentEntry.State);
Assert.Equal(nameof(ParentPN.Child1), dependentEntry.Metadata.DefiningNavigationName);
Assert.Same(subDependent, dependent.SubChild);
var subDependentEntry = context.Entry(subDependent);
Assert.Equal(principal.Id, subDependentEntry.Property("ChildId").CurrentValue);
Assert.Equal(graph == null ? EntityState.Added : entityState, subDependentEntry.State);
Assert.Equal(nameof(ChildPN.SubChild), subDependentEntry.Metadata.DefiningNavigationName);
});
}
}
