public void Correlated() { OrderItemCollection collection = new OrderItemCollection(); collection.es.Connection.ConnectionString = UnitTestBase.GetFktString(collection.es.Connection); OrderItemQuery oiq = new OrderItemQuery("oi"); ProductQuery pq = new ProductQuery("p"); // oiq.ProductID in the inner Select is pulled from // the outer Select, making a correlated SubQuery. oiq.Select( oiq.OrderID, (oiq.Quantity * oiq.UnitPrice).Sum().As("Total") ); oiq.Where(oiq.ProductID .In( pq.Select(pq.ProductID) .Where(oiq.ProductID == pq.ProductID) ) ); oiq.GroupBy(oiq.OrderID); Assert.IsTrue(collection.Load(oiq)); Assert.AreEqual(5, collection.Count); }
public void HavingWithComplexExpression() { OrderItemCollection coll = new OrderItemCollection(); coll.es.Connection.Name = "ForeignKeyTest"; OrderItemQuery q = new OrderItemQuery(); q.Select(q.OrderID, (q.Quantity * q.UnitPrice).Sum().As("TotalPrice")); q.Where(q.Discount.IsNull()); q.GroupBy(q.OrderID); q.Having((q.Quantity * q.UnitPrice).Sum() > 500); switch (coll.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": case "EntitySpaces.VistaDBProvider": case "EntitySpaces.VistaDB4Provider": q.OrderBy("<TotalPrice>", esOrderByDirection.Descending); break; default: q.OrderBy((q.Quantity * q.UnitPrice).Sum().Descending); break; } Assert.IsTrue(coll.Load(q), "Load"); Assert.AreEqual(2, coll.Count, "Count"); decimal price = Convert.ToDecimal(coll[0].GetColumn("TotalPrice")); Assert.AreEqual(1940.0M, price, "GetColumn"); }
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 HavingWithSimpleExpression() { OrderItemCollection coll = new OrderItemCollection(); coll.es.Connection.Name = "ForeignKeyTest"; OrderItemQuery q = new OrderItemQuery(); //q.es2.Connection.Name = "ForeignKeyTest"; q.Select(q.OrderID, q.Quantity.Sum().As("TotalQty")); q.Where(q.Discount.IsNull()); q.GroupBy(q.OrderID); switch (coll.es.Connection.ProviderSignature.DataProviderName) { case "EntitySpaces.SqlServerCeProvider": case "EntitySpaces.SqlServerCe4Provider": case "EntitySpaces.VistaDBProvider": case "EntitySpaces.VistaDB4Provider": q.Having(q.Quantity.Sum() > 100); q.OrderBy("<TotalQty>", esOrderByDirection.Descending); break; case "EntitySpaces.SQLiteProvider": q.Having((q.Quantity * 1).Sum() > 100); q.OrderBy(q.Quantity.Sum().Descending); break; default: q.Having(q.Quantity.Sum() > 100); q.OrderBy(q.Quantity.Sum().Descending); break; } Assert.IsTrue(coll.Load(q), "Load"); Assert.AreEqual(3, coll.Count, "Count"); int qty = Convert.ToInt32(coll[0].GetColumn("TotalQty")); Assert.AreEqual(240, qty, "GetColumn"); }
public void OneWhereSubtract() { OrderItemCollection collection = new OrderItemCollection(); collection.es.Connection.Name = "ForeignKeyTest"; OrderItemQuery oiq = new OrderItemQuery("oiq"); oiq.Select(oiq.OrderID, oiq.ProductID, (oiq.UnitPrice - oiq.Discount).As("SomeDecimal")); oiq.Where(oiq.UnitPrice - oiq.Discount < .2); oiq.OrderBy(oiq.OrderID, esOrderByDirection.Ascending); oiq.OrderBy(oiq.ProductID, esOrderByDirection.Ascending); Assert.IsTrue(collection.Load(oiq)); decimal someDec = Convert.ToDecimal(collection[0].GetColumn("SomeDecimal")); Assert.AreEqual(Convert.ToDecimal("0.10"), Math.Round(someDec, 2)); }
public void NestedZeroToManyCollection() { //The main Employee query EmployeeCollection coll = new EmployeeCollection(); coll.es.Connection.Name = "ForeignKeyTest"; coll.Query.Where(coll.Query.EmployeeID < 4); // Prefetch Employees Customers by Manager CustomerQuery cq1 = coll.Query.Prefetch <CustomerQuery>( Employee.Prefetch_CustomerCollectionByManager); EmployeeQuery eq1 = cq1.GetQuery <EmployeeQuery>(); cq1.Where(eq1.EmployeeID < 4); // Prefetch Employees Customers Orders (composite FK) OrderQuery oq1 = coll.Query.Prefetch <OrderQuery>( Employee.Prefetch_CustomerCollectionByManager, Customer.Prefetch_OrderCollectionByCustID); EmployeeQuery eq2 = oq1.GetQuery <EmployeeQuery>(); oq1.Where(eq2.EmployeeID < 4); // Prefetch Employees Customers Orders OrderItems OrderItemQuery oiq1 = coll.Query.Prefetch <OrderItemQuery>( Employee.Prefetch_CustomerCollectionByManager, Customer.Prefetch_OrderCollectionByCustID, Order.Prefetch_OrderItemCollectionByOrderID); EmployeeQuery eq3 = oiq1.GetQuery <EmployeeQuery>(); oiq1.Where(eq3.EmployeeID < 4); // Prefetch Employees Customers by StaffAssigned CustomerQuery cq2 = coll.Query.Prefetch <CustomerQuery>( Employee.Prefetch_CustomerCollectionByStaffAssigned); EmployeeQuery eq4 = cq2.GetQuery <EmployeeQuery>(); cq2.Where(eq4.EmployeeID < 4); coll.Query.Load(); foreach (Employee emp in coll) { switch (emp.EmployeeID.Value) { case 1: Assert.AreEqual(1, emp.EmployeeID.Value); Assert.AreEqual(35, emp.CustomerCollectionByManager.Count); Assert.AreEqual(2, emp.CustomerCollectionByStaffAssigned.Count); Assert.AreEqual(0, emp.EmployeeCollectionBySupervisor.Count, "These 2 are not Prefetched"); foreach (Customer c in emp.CustomerCollectionByManager) { if (c.CustomerID == "01001" && c.CustomerSub == "001") { Assert.AreEqual(3, c.OrderCollectionByCustID.Count); foreach (Order o in c.OrderCollectionByCustID) { if (o.OrderID == 1) { Assert.AreEqual(3, o.OrderItemCollectionByOrderID.Count); } } } } break; case 2: Assert.AreEqual(2, emp.EmployeeID.Value); Assert.AreEqual(12, emp.CustomerCollectionByManager.Count); Assert.AreEqual(5, emp.CustomerCollectionByStaffAssigned.Count); break; case 3: Assert.AreEqual(3, emp.EmployeeID.Value); Assert.AreEqual(6, emp.CustomerCollectionByManager.Count); Assert.AreEqual(1, emp.CustomerCollectionByStaffAssigned.Count); break; default: Assert.Fail("Only employees 1, 2, and 3 should be loaded."); break; } } }
public void NestedZeroToManyEntity2() { //The main Employee Employee emp = new Employee(); emp.es.Connection.Name = "ForeignKeyTest"; emp.Query.Where(emp.Query.EmployeeID == 1); // Prefetch Employee Customers by Manager CustomerQuery cq1 = emp.Query.Prefetch <CustomerQuery>( Employee.Prefetch_CustomerCollectionByManager); EmployeeQuery eq1 = cq1.GetQuery <EmployeeQuery>(); cq1.Where(eq1.EmployeeID == 1); // Prefetch Employee Customers Orders (composite FK) OrderQuery oq1 = emp.Query.Prefetch <OrderQuery>( Employee.Prefetch_CustomerCollectionByManager, Customer.Prefetch_OrderCollectionByCustID); EmployeeQuery eq2 = oq1.GetQuery <EmployeeQuery>(); oq1.Where(eq2.EmployeeID == 1); // Prefetch Employee Customers Orders OrderItems OrderItemQuery oiq1 = emp.Query.Prefetch <OrderItemQuery>( Employee.Prefetch_CustomerCollectionByManager, Customer.Prefetch_OrderCollectionByCustID, Order.Prefetch_OrderItemCollectionByOrderID); EmployeeQuery eq3 = oiq1.GetQuery <EmployeeQuery>(); oiq1.Where(eq3.EmployeeID == 1); // Prefetch Employee Customers by StaffAssigned CustomerQuery cq2 = emp.Query.Prefetch <CustomerQuery>( Employee.Prefetch_CustomerCollectionByStaffAssigned); EmployeeQuery eq4 = cq2.GetQuery <EmployeeQuery>(); cq2.Where(eq4.EmployeeID == 1); emp.Query.Load(); Assert.AreEqual(1, emp.EmployeeID.Value); Assert.AreEqual(35, emp.CustomerCollectionByManager.Count); Assert.AreEqual(2, emp.CustomerCollectionByStaffAssigned.Count); Assert.AreEqual(0, emp.EmployeeCollectionBySupervisor.Count, "These 2 are not Prefetched"); foreach (Customer c in emp.CustomerCollectionByManager) { if (c.CustomerID == "01001" && c.CustomerSub == "001") { Assert.AreEqual(3, c.OrderCollectionByCustID.Count); foreach (Order o in c.OrderCollectionByCustID) { if (o.OrderID == 1) { Assert.AreEqual(3, o.OrderItemCollectionByOrderID.Count); } } } } }
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; } } }