示例#1
0
        public void InsertLoadUpdateDelete()
        {
            var o = DataSetStorageContext.CreateTestSchema();

            var objPersisterContext = new DataSetStorageContext(() => { return(o); });

            var googCompany = new ObjectContainer(o.FindClassByID("companies"));

            googCompany["title"] = "Google";
            Assert.Catch <ArgumentException>(new TestDelegate(() => {
                googCompany["name"] = "ZZZ";
            }));
            googCompany["net_income"] = 999;

            var yahooCompany = new ObjectContainer(o.FindClassByID("companies"));

            yahooCompany["title"] = "Yahoo Inc";
            var googleChildCompany = new ObjectContainer(o.FindClassByID("companies"));

            googleChildCompany["title"] = "YouTube";


            var johnContact = new ObjectContainer(o.FindClassByID("contacts"));

            johnContact["name"]       = "John";
            johnContact["is_primary"] = true;
            var maryContact = new ObjectContainer(o.FindClassByID("contacts"));

            maryContact["name"]       = "Mary";
            maryContact["is_primary"] = false;
            maryContact["birthday"]   = new DateTime(1999, 5, 20);
            var bobContact = new ObjectContainer(o.FindClassByID("contacts"));

            bobContact["name"]       = "Bob";
            bobContact["is_primary"] = true;

            var usaCountry = new ObjectContainer(o.FindClassByID("countries"));

            usaCountry["title"] = "USA";
            var canadaCountry = new ObjectContainer(o.FindClassByID("countries"));

            canadaCountry["title"] = "Canada";


            objPersisterContext.ObjectContainerStorage.Insert(googCompany);
            Assert.True(googCompany.ID.HasValue);
            AssertObjectLog(objPersisterContext.StorageDS, googCompany.ID.Value, "insert");
            objPersisterContext.ObjectContainerStorage.Insert(yahooCompany);
            objPersisterContext.ObjectContainerStorage.Insert(googleChildCompany);

            objPersisterContext.ObjectContainerStorage.Insert(johnContact);
            objPersisterContext.ObjectContainerStorage.Insert(maryContact);
            objPersisterContext.ObjectContainerStorage.Insert(bobContact);

            objPersisterContext.ObjectContainerStorage.Insert(usaCountry);
            objPersisterContext.ObjectContainerStorage.Insert(canadaCountry);


            // load test
            var maryCopy = objPersisterContext.ObjectContainerStorage.Load(new[] { maryContact.ID.Value }).Values.FirstOrDefault();

            Assert.NotNull(maryCopy, "Object Load failed");
            Assert.AreEqual((string)maryContact["name"], (string)maryCopy["name"]);
            Assert.AreEqual((bool)maryContact["is_primary"], (bool)maryCopy["is_primary"]);
            Assert.AreEqual((DateTime)maryContact["birthday"], (DateTime)maryCopy["birthday"]);

            var googCopy = objPersisterContext.ObjectContainerStorage.Load(new[] { googCompany.ID.Value }).Values.FirstOrDefault();

            Assert.NotNull(googCopy, "Object Load failed");
            Assert.AreEqual((string)googCompany["title"], (string)googCopy["title"]);
            Assert.AreEqual((decimal)googCompany["net_income"], (decimal)googCopy["net_income"]);

            // update test
            maryCopy["name"]       = "Mary Second";
            maryCopy["birthday"]   = new DateTime(1988, 2, 10);
            maryCopy["is_primary"] = true;
            objPersisterContext.ObjectContainerStorage.Update(maryCopy);
            AssertObjectLog(objPersisterContext.StorageDS, maryCopy.ID.Value, "update");

            // reload mary contact
            maryContact = objPersisterContext.ObjectContainerStorage.Load(new[] { maryContact.ID.Value }).Values.FirstOrDefault();
            Assert.AreEqual((string)maryContact["name"], "Mary Second");
            Assert.AreEqual((bool)maryContact["is_primary"], true);
            Assert.AreEqual((DateTime)maryContact["birthday"], (DateTime)maryCopy["birthday"]);

            // test relations
            var contactToCompanyRel = maryContact.GetClass().FindRelationship(
                o.FindClassByID("contactCompany"), googCompany.GetClass()
                );
            var companyToParentCompanyRel = googleChildCompany.GetClass().FindRelationship(
                o.FindClassByID("parentCompany"), googCompany.GetClass(), false
                );
            var companyToCountryRel = googCompany.GetClass().FindRelationship(
                o.FindClassByID("companyCountry"), usaCountry.GetClass(), false
                );

            objPersisterContext.ObjectContainerStorage.AddRelation(
                new ObjectRelation(maryContact.ID.Value, contactToCompanyRel, googCompany.ID.Value),
                new ObjectRelation(johnContact.ID.Value, contactToCompanyRel, googCompany.ID.Value),
                new ObjectRelation(bobContact.ID.Value, contactToCompanyRel, yahooCompany.ID.Value),
                new ObjectRelation(googleChildCompany.ID.Value, companyToParentCompanyRel, googCompany.ID.Value),
                new ObjectRelation(googCompany.ID.Value, companyToCountryRel, usaCountry.ID.Value),
                new ObjectRelation(yahooCompany.ID.Value, companyToCountryRel, usaCountry.ID.Value),
                new ObjectRelation(googleChildCompany.ID.Value, companyToCountryRel, canadaCountry.ID.Value)
                );

            var googCompanyRels = objPersisterContext.ObjectContainerStorage.LoadRelations(googCompany, null);

            Assert.AreEqual(4, googCompanyRels.Count(), "Expected 3 relations for Google company");

            var yahooCompanyRels = objPersisterContext.ObjectContainerStorage.LoadRelations(yahooCompany, null);

            Assert.AreEqual(2, yahooCompanyRels.Count(), "Expected 1 relation for Yahoo company");
            Assert.AreEqual(bobContact.ID.Value,
                            yahooCompanyRels.Where(r => r.Relation.Predicate.ID == "contactCompany").First().ObjectID,
                            "Bob should be a only contact of Yahoo");

            // remove rel
            var maryRel = googCompanyRels.Where(r => r.ObjectID == maryContact.ID.Value).First();

            objPersisterContext.ObjectContainerStorage.RemoveRelation(
                new ObjectRelation(
                    googCompany.ID.Value,
                    googCompany.GetClass().FindRelationship(o.FindClassByID("contactCompany"), maryContact.GetClass()),
                    maryContact.ID.Value)
                );

            Assert.AreEqual(1, objPersisterContext.ObjectContainerStorage.LoadRelations(googCompany,
                                                                                        new[] {
                googCompany.GetClass().FindRelationship(o.FindClassByID("contactCompany"), maryContact.GetClass())
            }).Count(),
                            "Expected 1 relation for Google company after Mary removal");

            // test for inferred relation
            var johnToCountryRels = objPersisterContext.ObjectContainerStorage.LoadRelations(johnContact, new[] {
                new Relationship(
                    johnContact.GetClass(),
                    new [] { contactToCompanyRel, companyToCountryRel },
                    o.FindClassByID("countries"))
            });

            Assert.AreEqual(1, johnToCountryRels.Count());
            Assert.AreEqual(usaCountry.ID.Value, johnToCountryRels.First().ObjectID);

            //Console.WriteLine("DataSet after test:\n" + objPersisterContext.StorageDS.GetXml());
        }