public void InnerAlias() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.MSAccessProvider": Assert.Ignore("Not supported"); break; case "EntitySpaces.VistaDBProvider": case "EntitySpaces.VistaDB4Provider": OrderQuery oq = new OrderQuery("o"); OrderItemQuery odq = new OrderItemQuery("od"); oq.Select(oq.OrderID, odq.OrderID); oq.InnerJoin(odq).On(oq.OrderID == odq.OrderID); oq.OrderBy(oq.OrderID.Ascending); Assert.IsTrue(collection.Load(oq), "Load"); string lq = collection.Query.es.LastQuery; Assert.AreEqual(1, collection[0].OrderID.Value, "Property"); Assert.AreEqual(1, Convert.ToInt32(collection[0].GetColumn("OrderID_1")), "Virtual"); break; default: oq = new OrderQuery("o"); odq = new OrderItemQuery("od"); oq.Select(oq.OrderID, odq.OrderID); oq.InnerJoin(odq).On(oq.OrderID == odq.OrderID); oq.OrderBy(oq.OrderID.Ascending); Assert.IsTrue(collection.Load(oq), "Load"); lq = collection.Query.es.LastQuery; Assert.AreEqual(1, collection[0].OrderID.Value, "Property"); Assert.AreEqual(1, Convert.ToInt32(collection[0].GetColumn("OrderID1")), "Virtual"); break; } }
public void SingleZeroToMany() { // The main Employee query EmployeeQuery eq1 = new EmployeeQuery("e"); eq1.Where(eq1.EmployeeID < 3); eq1.OrderBy(eq1.EmployeeID.Ascending); // The Order Collection OrderQuery oq1 = eq1.Prefetch<OrderQuery>(Employee.Prefetch_OrderCollectionByEmployeeID); EmployeeQuery eq2 = oq1.GetQuery<EmployeeQuery>(); oq1.Where(eq2.EmployeeID < 3); // Pre-test the Order query OrderCollection oColl = new OrderCollection(); oColl.es.Connection.Name = "ForeignKeyTest"; oColl.Load(oq1); Assert.AreEqual(3, oColl.Count, "Order pre-test"); // This will Prefetch the Order query EmployeeCollection coll = new EmployeeCollection(); coll.es.Connection.Name = "ForeignKeyTest"; //coll.es.IsLazyLoadDisabled = true; coll.Load(eq1); foreach (Employee emp in coll) { emp.es.IsLazyLoadDisabled = true; switch (emp.EmployeeID.Value) { case 1: Assert.AreEqual(1, emp.EmployeeID.Value); Assert.AreEqual(1, emp.OrderCollectionByEmployeeID.Count); break; case 2: Assert.AreEqual(2, emp.EmployeeID.Value); Assert.AreEqual(2, emp.OrderCollectionByEmployeeID.Count); break; default: Assert.Fail("Only employees 1 and 2 should be loaded."); break; } } }
public void InnerSelectAllPrimaryQuery() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderQuery oq = new OrderQuery("o"); OrderItemQuery oiq = new OrderItemQuery("oi"); oq .Select(oq) .InnerJoin(oiq) .On(oq.OrderID == oiq.OrderID); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(15, collection.Count); string lq = collection.Query.es.LastQuery; string all = lq.Substring(7, 3); Assert.AreEqual("o.*", all); }
public void SelectAllPlusSubQuery() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderQuery orders = new OrderQuery("o"); OrderItemQuery details = new OrderItemQuery("oi"); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": Assert.Ignore("Not supported."); break; default: orders.Select ( orders, details.Select( details.UnitPrice.Max()) .Where(orders.OrderID == details.OrderID).As("MaxUnitPrice") ); orders.OrderBy(orders.OrderID.Ascending); break; } Assert.IsTrue(collection.Load(orders)); Assert.AreEqual(8, collection.Count); Assert.AreEqual(3m, collection[0].GetColumn("MaxUnitPrice")); string all = collection.Query.es.LastQuery.Substring(7, 3); Assert.AreEqual("o.*", all); }
public void AllSubQuery() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SQLiteProvider": Assert.Ignore("Not supported by SQLite."); break; default: // DateAdded for Customers whose Manager = 3 CustomerQuery cq = new CustomerQuery("c"); cq.es.All = true; cq.Select(cq.DateAdded); cq.Where(cq.Manager == 3); // OrderID and CustID where the OrderDate is // less than all of the dates in the CustomerQuery above. OrderQuery oq = new OrderQuery("o"); oq.Select( oq.OrderID, oq.CustID ); oq.Where(oq.OrderDate < cq); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(8, collection.Count); break; } }
public void AnyNestedBySubQuery() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SQLiteProvider": Assert.Ignore("Not supported by SQLite."); break; default: // Employees whose LastName begins with 'S'. EmployeeQuery eq = new EmployeeQuery("e"); eq.Select(eq.EmployeeID); eq.Where(eq.LastName.Like("S%")); // DateAdded for Customers whose Managers are in the // EmployeeQuery above. CustomerQuery cq = new CustomerQuery("c"); cq.es.Any = true; cq.Select(cq.DateAdded); cq.Where(cq.Manager.In(eq)); // OrderID and CustID where the OrderDate is // less than any one of the dates in the CustomerQuery above. OrderQuery oq = new OrderQuery("o"); oq.Select( oq.OrderID, oq.CustID ); oq.Where(oq.OrderDate < cq); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(8, collection.Count); break; } }
public void NestedBySubQuery() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); // This is the same as the traditional nested SubQuery // in the 'Nested' test, but is easier to construct // and understand. // The key is to start with the innermost SubQuery, // and work your way out to the outermost Query. // Employees whose LastName begins with 'S'. EmployeeQuery eq = new EmployeeQuery("e"); eq.Select(eq.EmployeeID); eq.Where(eq.LastName.Like("S%")); // DateAdded for Customers whose Managers are in the // EmployeeQuery above. CustomerQuery cq = new CustomerQuery("c"); cq.Select(cq.DateAdded); cq.Where(cq.Manager.In(eq)); // OrderID and CustID where the OrderDate is in the // CustomerQuery above. OrderQuery oq = new OrderQuery("o"); oq.Select( oq.OrderID, oq.CustID ); oq.Where(oq.OrderDate.In(cq)); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(2, collection.Count); }
public void Nested() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderQuery oq = new OrderQuery("o"); CustomerQuery cq = new CustomerQuery("c"); EmployeeQuery eq = new EmployeeQuery("e"); // OrderID and CustID for customers who ordered on the same date // a customer was added, and have a manager whose // last name starts with 'S'. oq.Select( oq.OrderID, oq.CustID ); oq.Where(oq.OrderDate .In( cq.Select(cq.DateAdded) .Where(cq.Manager.In( eq.Select(eq.EmployeeID) .Where(eq.LastName.Like("S%")) ) ) ) ); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(2, collection.Count); }
public void SelectStatement() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderQuery orders = new OrderQuery("o"); OrderItemQuery details = new OrderItemQuery("oi"); // A SubQuery in the Select clause must return a single value. switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": Assert.Ignore("Not supported."); break; default: orders.Select ( orders.OrderID, orders.OrderDate, details.Select( details.UnitPrice.Max()) .Where(orders.OrderID == details.OrderID).As("MaxUnitPrice") ); orders.OrderBy(orders.OrderID.Ascending); break; } Assert.IsTrue(collection.Load(orders)); Assert.AreEqual(8, collection.Count); Assert.AreEqual(3m, collection[0].GetColumn("MaxUnitPrice")); }
public void SimpleJoinOn() { OrderCollection collection = new OrderCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.MSAccessProvider": Assert.Ignore("SubQuery inside an ON clause not Supported"); break; default: // Query for the Join OrderItemQuery oiq = new OrderItemQuery("oi"); // SubQuery of OrderItems with a discount OrderItemQuery oisq = new OrderItemQuery("ois"); oisq.es.Distinct = true; oisq.Select(oisq.Discount); oisq.Where(oisq.Discount > 0); // Orders with discounted items OrderQuery oq = new OrderQuery("o"); oq.Select(oq.OrderID, oiq.Discount); oq.InnerJoin(oiq).On(oq.OrderID == oiq.OrderID & oiq.Discount.In(oisq)); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(2, collection.Count); break; } }
public void FromClauseUsingInstance() { OrderCollection collection = new OrderCollection(); collection.es.Connection.Name = "ForeignKeyTest"; // Select an arbitrary number of rows from // any starting row. int startRow = 4; int numberOfRows = 7; // OrderItem SubQuery 1 // Get all rows through start + number, ascending OrderItemQuery oisq = new OrderItemQuery("ois"); oisq.es.Top = startRow + numberOfRows - 1; oisq.Select(oisq.OrderID, oisq.ProductID, oisq.Quantity); oisq.OrderBy(oisq.OrderID.Ascending, oisq.ProductID.Ascending); // OrderItem SubQuery 2 // Get just the number of rows, descending OrderItemQuery oisq2 = new OrderItemQuery("ois2"); oisq2.es.Top = numberOfRows; oisq2.From(oisq).As("sub1"); switch (collection.es.Connection.ProviderSignature.DataProviderName) { //case "EntitySpaces.SqlServerCeProvider": // Assert.Ignore("Not supported."); // break; case "EntitySpaces.NpgsqlProvider": case "EntitySpaces.Npgsql2Provider": oisq2.OrderBy("<sub1.\"OrderID\">", esOrderByDirection.Descending); oisq2.OrderBy("<sub1.\"ProductID\">", esOrderByDirection.Descending); break; case "EntitySpaces.OracleClientProvider": Assert.Ignore("Not supported."); break; default: oisq2.OrderBy("<sub1.OrderID>", esOrderByDirection.Descending); oisq2.OrderBy("<sub1.ProductID>", esOrderByDirection.Descending); break; } // Put it back in ascending order OrderQuery oq = new OrderQuery("o"); oq.From(oisq2).As("sub2"); switch (collection.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.NpgsqlProvider": case "EntitySpaces.Npgsql2Provider": oq.OrderBy("<sub2.\"OrderID\">", esOrderByDirection.Ascending); oq.OrderBy("<sub2.\"ProductID\">", esOrderByDirection.Ascending); break; default: oq.OrderBy("<sub2.OrderID>", esOrderByDirection.Ascending); oq.OrderBy("<sub2.ProductID>", esOrderByDirection.Ascending); break; } Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(7, collection.Count); Assert.AreEqual(10, collection[0].GetColumn("Quantity")); }
public void FromClauseWithAlias() { OrderCollection collection = new OrderCollection(); collection.es.Connection.Name = "ForeignKeyTest"; OrderQuery oq = new OrderQuery("o"); OrderItemQuery oiq = new OrderItemQuery("oi"); // Calculate total price per order switch (collection.es.Connection.ProviderSignature.DataProviderName) { //case "EntitySpaces.SqlServerCeProvider": // Assert.Ignore("Not supported."); // break; case "EntitySpaces.NpgsqlProvider": case "EntitySpaces.Npgsql2Provider": case "EntitySpaces.OracleClientProvider": oq.Select(oq.CustID, oq.OrderDate, "<sub.\"OrderTotal\">"); break; default: oq.Select(oq.CustID, oq.OrderDate, "<sub.OrderTotal>"); break; } oq.From ( oiq.Select(oiq.OrderID, (oiq.UnitPrice * oiq.Quantity).Sum().As("OrderTotal")) .GroupBy(oiq.OrderID) ).As("sub"); oq.InnerJoin(oq).On(oq.OrderID == oiq.OrderID); oq.OrderBy(oq.OrderID.Ascending); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(5, collection.Count); Assert.AreEqual(13.11m, collection[0].GetColumn("OrderTotal")); }
public void FromClause() { OrderCollection collection = new OrderCollection(); collection.es.Connection.Name = "ForeignKeyTest"; switch (collection.es.Connection.ProviderSignature.DataProviderName) { //case "EntitySpaces.SqlServerCeProvider": // Assert.Ignore("Not supported."); // break; default: OrderQuery oq = new OrderQuery("o"); OrderItemQuery oiq = new OrderItemQuery("oi"); // The inner Select contains an aggregate, // which requires a GroupBy for each non-aggregate in the Select. // The outer Select includes the aggregate from the inner Select, // plus columns where no GroupBy was desired. oq.Select(oq.CustID, oq.OrderDate, oiq.UnitPrice); oq.From ( oiq.Select(oiq.OrderID, oiq.UnitPrice.Sum()).GroupBy(oiq.OrderID) ).As("sub"); oq.InnerJoin(oq).On(oq.OrderID == oiq.OrderID); oq.OrderBy(oq.OrderID.Ascending); Assert.IsTrue(collection.Load(oq)); Assert.AreEqual(5, collection.Count); Decimal up = Convert.ToDecimal(collection[0].GetColumn("UnitPrice")); Assert.AreEqual(5.11m, Math.Round(up, 2)); break; } }
public void SingleUnionWithSubSelect() { OrderCollection coll = new OrderCollection(); coll.es.Connection.Name = "ForeignKeyTest"; switch (coll.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": Assert.Ignore("Scalar SubSelects are not supported in SqlCe."); break; default: OrderQuery oq1 = new OrderQuery("o1"); OrderItemQuery oiq1 = new OrderItemQuery("oi1"); oq1.Select ( oq1.OrderID, oq1.OrderDate, oiq1.Select( oiq1.UnitPrice.Max()) .Where(oq1.OrderID == oiq1.OrderID).As("MaxUnitPrice") ); oq1.Where(oq1.OrderDate.Between(Convert.ToDateTime("2005-01-01"), Convert.ToDateTime("2005-12-31"))); OrderQuery oq2 = new OrderQuery("o2"); OrderItemQuery oiq2 = new OrderItemQuery("oi2"); oq2.Select ( oq2.OrderID, oq2.OrderDate, oiq2.Select( oiq2.UnitPrice.Max()) .Where(oq2.OrderID == oiq2.OrderID).As("MaxUnitPrice") ); oq2.Where(oq2.OrderDate.Between(Convert.ToDateTime("2004-01-01"), Convert.ToDateTime("2004-12-31"))); oq1.Union(oq2); oq1.OrderBy(oq1.OrderID.Ascending); //string lq = cq1.Parse(); Assert.IsTrue(coll.Load(oq1)); Assert.AreEqual(6, coll.Count); Assert.AreEqual(3m, coll[0].GetColumn("MaxUnitPrice")); break; } }
public void NestedZeroToMany() { // The main Employee query EmployeeQuery eq1 = new EmployeeQuery("e"); eq1.Where(eq1.EmployeeID < 4); eq1.OrderBy(eq1.EmployeeID.Ascending); // The Order Collection OrderQuery oq1 = eq1.Prefetch<OrderQuery>(Employee.Prefetch_OrderCollectionByEmployeeID); EmployeeQuery eq2 = oq1.GetQuery<EmployeeQuery>(); oq1.Where(eq2.EmployeeID < 4 && oq1.PlacedBy < 3); // Pre-test the Order query OrderCollection oColl = new OrderCollection(); oColl.es.Connection.Name = "ForeignKeyTest"; oColl.Load(oq1); Assert.AreEqual(5, oColl.Count, "Order pre-test"); // The OrderItem Collection OrderItemQuery oiq1 = eq1.Prefetch<OrderItemQuery>(Employee.Prefetch_OrderCollectionByEmployeeID, Order.Prefetch_OrderItemCollectionByOrderID); EmployeeQuery eq3 = oiq1.GetQuery<EmployeeQuery>(); OrderQuery oq2 = oiq1.GetQuery<OrderQuery>(); oiq1.Where(eq3.EmployeeID < 4 && oq2.PlacedBy < 3 && oiq1.Quantity < 100); // Pre-test the OrderItem query OrderItemCollection oiColl = new OrderItemCollection(); oiColl.es.Connection.Name = "ForeignKeyTest"; oiColl.Load(oiq1); Assert.AreEqual(4, oiColl.Count, "OrderItem pre-test"); // Will Prefetch the Order and OrderItems queries EmployeeCollection coll = new EmployeeCollection(); coll.es.Connection.Name = "ForeignKeyTest"; //coll.es.IsLazyLoadDisabled = true; coll.Load(eq1); foreach (Employee emp in coll) { emp.es.IsLazyLoadDisabled = true; switch (emp.EmployeeID.Value) { case 1: Assert.AreEqual(1, emp.EmployeeID.Value); Assert.AreEqual(0, emp.OrderCollectionByEmployeeID.Count); break; case 2: Assert.AreEqual(2, emp.EmployeeID.Value); Assert.AreEqual(2, emp.OrderCollectionByEmployeeID.Count); foreach (Order o in emp.OrderCollectionByEmployeeID) { Assert.Less(0, o.OrderItemCollectionByOrderID.Count); } break; case 3: Assert.AreEqual(3, emp.EmployeeID.Value); Assert.AreEqual(3, emp.OrderCollectionByEmployeeID.Count); foreach (Order o in emp.OrderCollectionByEmployeeID) { Assert.AreEqual(0, o.OrderItemCollectionByOrderID.Count); } break; default: Assert.Fail("Only employees 1, 2, and 3 should be loaded."); break; } } }