public void TestAggregateConditionAll() { const int freight = 0; var count = (from customer in context.Customers where customer.Orders.All(order => order.Freight >= freight) select customer).Count(); QueryDesigner queryDesigner = new QueryDesigner(context, typeof(Customers)); ConditionList conditions = new ConditionList(new Condition("Freight", freight, ConditionOperator.GreaterThanOrEqualTo)); PredicateAggregationCondition predicateAggregationCondition = new AllCondition("Orders", conditions); queryDesigner.Where(predicateAggregationCondition); List<Customers> customers = queryDesigner.Cast<Customers>().ToList(); Assert.AreEqual(count, customers.Count); count = (from customer in context.Customers where !customer.Orders.All(order => order.Freight >= freight) select customer).Count(); queryDesigner = new QueryDesigner(context, typeof(Customers)); conditions = new ConditionList(new Condition("Freight", freight, ConditionOperator.GreaterThanOrEqualTo)); predicateAggregationCondition = new AllCondition("Orders", conditions, false); queryDesigner.Where(predicateAggregationCondition); customers = queryDesigner.Cast<Customers>().ToList(); Assert.AreEqual(count, customers.Count); }
public void TestUnion() { const int resultRowCount = 5; // create QueryDesigner with ElementType == Products var queryDesinger = new QueryDesigner(context, typeof(Products)); //create root node which elementType has the same type in queryDesigner var root = new JoinNode(typeof(Products)); // create child node Categories with propertyName "Products". // Because Categories linked with Products by next property: // public EntitySet<Products> Products var categoryNode = new JoinNode(typeof(Categories), "Category", "Products"); // add categoryNode to root node root.AddChildren(categoryNode); // create filter by Products.ProductName like "%l%" var productNameCondition = new Condition("ProductName", "l", ConditionOperator.Like); root.AddConditions(productNameCondition); // create filter by Categories.Description like "Sweet%" var categoryNameCondition = new Condition("Description", "Sweet", ConditionOperator.StartsWith, typeof(Categories)); categoryNode.AddConditions(categoryNameCondition); // create ordering, because we call Skip and Take method. Ordering order = new Ordering("ProductName"); // make join Products table with Categories filtered by conditions // and ordered by already created ordering queryDesinger.Join(root, new OrderingList(order)); QueryDesigner cloneQueryDesigner = (QueryDesigner)queryDesinger.Clone(); queryDesinger.Skip(0).Take(3); cloneQueryDesigner.Skip(2).Take(4); queryDesinger.Union(cloneQueryDesigner); var list = new List<Products>(queryDesinger.Cast<Products>()); Assert.AreEqual(resultRowCount, list.Count); }
public void TestJoinWithTwoChildrenAndComplicatedFilterAndOrderings() { const string productName = "Louisiana"; const string categoryName = "Condiments"; const int resultRowCount = 9; //create root node var root = new JoinNode(typeof(Products)); // add first child node Categories with propertyName "Products". // Because Categories linked with Products by next property: // public EntitySet<Products> Products var categoryNode = new JoinNode(typeof(Categories), "Category", "Products"); root.AddChildren(categoryNode); // add second child node Order_Details. PropertyName not defined // because Order_Details linked with Products by next property: // public Products Products - name of property is equal name of type var orderDetailNode = new JoinNode(typeof(Order_Details), "Order_Detail", "Products"); root.AddChildren(orderDetailNode); var queryDesinger = new QueryDesigner(context, root); // create conditions for filtering by ProductName Like "Louisiana%" Or CategoryName == "Condiments" var productCondition = new Condition("ProductName", productName, ConditionOperator.StartsWith, typeof(Products)); var categoryCondition = new Condition("CategoryName", categoryName, ConditionOperator.EqualTo, typeof(Categories)); var orCondition = new OrCondition(productCondition, categoryCondition); // create condition for filtering by [Orders Details].Discount > 0.15 var discountCondition = new Condition("Discount", 0.15F, ConditionOperator.GreaterThan, typeof(Order_Details)); var conditionals = new ConditionList(orCondition, discountCondition); // assign conditions // queryDesinger.Where(conditionals); // make Distinct queryDesinger.Distinct(); // make orderings by ProductName and CategoryName var productNameOrder = new Ordering("ProductName", SortDirection.Ascending, typeof(Products)); // var categoryNameOrder = new Ordering("CategoryName", SortDirection.Descending, typeof(Categories)); queryDesinger.OrderBy(new OrderingList(productNameOrder/*, categoryNameOrder*/)); IQueryable<Products> distictedProducts = queryDesinger.Cast<Products>(); var list = new List<Products>(distictedProducts); Assert.AreEqual(resultRowCount, list.Count); string query = @" SELECT DISTINCT Products.ProductID, Products.ProductName, Products.SupplierID, Products.CategoryID, Products.QuantityPerUnit, Products.UnitPrice, Products.UnitsInStock, Products.UnitsOnOrder, Products.ReorderLevel, Products.Discontinued FROM Products INNER JOIN Categories ON Products.CategoryID = Categories.CategoryID INNER JOIN [Orders Details] ON Products.ProductID = [Orders Details].ProductID WHERE [Orders Details].Discount > 0.15 AND ((Products.ProductName LIKE N'Louisiana%') OR (Categories.CategoryName = N'Condiments'))"; CheckDataWithExecuteReaderResult(query, resultRowCount, list); }
public void TestJoinWithOneChildSkipAndTake() { const int resultRowCount = 10; //create root node var root = new JoinNode(typeof(Products)); // add child node Categories with propertyName "Products". // Because Categories linked with Products by next property: // public EntitySet<Products> Products var categoryNode = new JoinNode(typeof(Categories), "Category", "Products"); root.AddChildren(categoryNode); var queryDesinger = new QueryDesigner(context, typeof(Products)); OrderingList parameteres = new OrderingList(new Ordering("ProductName", typeof(Products)), new Ordering("CategoryName", SortDirection.Descending, typeof(Categories))); queryDesinger.Join(root, parameteres); queryDesinger.Skip(10).Take(10); var list = new List<Products>(queryDesinger.Cast<Products>()); Assert.AreEqual(resultRowCount, list.Count); }
public void TestJoinWithOneChildAndFilteredByProductNameAndCategoryNameV2() { const string productName = "Louisiana"; const string categoryName = "Condiments"; const int resultRowCount = 2; //create root node var root = new JoinNode(typeof(Products)); // add condition for filtering by ProductName Like "Louisiana%" root.AddConditions(new Condition("ProductName", productName, ConditionOperator.StartsWith)); // add child node Categories with propertyName "Products". // Because Categories linked with Products by next property: // public EntitySet<Products> Products var categoryNode = new JoinNode(typeof(Categories), "Category", "Products"); root.AddChildren(categoryNode); // add condition for filtering by CategoryName == "Condiments" categoryNode.AddConditions(new Condition("CategoryName", categoryName)); var queryDesinger = new QueryDesigner(context, root); var list = new List<Products>(queryDesinger.Cast<Products>()); Assert.AreEqual(resultRowCount, list.Count); string query = @"SELECT ProductID FROM Products INNER JOIN Categories ON Products.CategoryID = Categories.CategoryID WHERE Products.ProductName like N'Louisiana%' AND Categories.CategoryName = N'Condiments'"; CheckDataWithExecuteReaderResult(query, resultRowCount, list); }
public void TestJoinWithOneChild() { const int resultRowCount = 77; //create root node var root = new JoinNode(typeof(Products)); // add child node Categories with propertyName "Products". // Because Categories linked with Products by next property: // public EntitySet<Products> Products root.AddChildren(new JoinNode(typeof(Categories), "Category", "Products")); var queryDesinger = new QueryDesigner(context, root); var list = new List<Products>(queryDesinger.Cast<Products>()); // check numbers of entity Assert.AreEqual(resultRowCount, list.Count); string query = @"SELECT ProductID FROM Products INNER JOIN Categories ON Products.CategoryID = Categories.CategoryID"; CheckDataWithExecuteReaderResult(query, resultRowCount, list); }
public void TestAggregateConditionCount() { const int freight = 10; const int firstCountValue = 0; var count = (from customer in context.Customers where customer.Orders.Count(order => order.Freight >= freight) > firstCountValue select customer).Count(); QueryDesigner queryDesigner = new QueryDesigner(context, typeof(Customers)); ConditionList conditions = new ConditionList(new Condition("Freight", freight, ConditionOperator.GreaterThanOrEqualTo)); PredicateAggregationCondition predicateAggregationCondition = new CountCondition("Orders", conditions, firstCountValue, ConditionOperator.GreaterThan); queryDesigner.Where(predicateAggregationCondition); List<Customers> customers = queryDesigner.Cast<Customers>().ToList(); Assert.AreEqual(count, customers.Count); const int secondCountValue = 5; count = (from customer in context.Customers where customer.Orders.Count(order => order.Freight >= freight) <= secondCountValue select customer).Count(); queryDesigner = new QueryDesigner(context, typeof(Customers)); conditions = new ConditionList(new Condition("Freight", freight, ConditionOperator.GreaterThanOrEqualTo)); predicateAggregationCondition = new CountCondition("Orders", conditions, secondCountValue, ConditionOperator.LessThanOrEqualTo); queryDesigner.Where(predicateAggregationCondition); customers = queryDesigner.Cast<Customers>().ToList(); Assert.AreEqual(count, customers.Count); }
public void TestJoinWithOneChildByNullableAssociationFileds() { const int resultRowCount = 77; //create root node var root = new JoinNode(typeof(Category)); // add child node Category with propertyName "Products". // Because Category linked with Product by next property: // public EntitySet<Product> Products root.AddChildren(new JoinNode(typeof(Product), new[] { "CategoryID" }, new[] { "CategoryID" })); var queryDesinger = new QueryDesigner(context, root); var list = new List<Category>(queryDesinger.Cast<Category>()); // check numbers of entity Assert.AreEqual(resultRowCount, list.Count); string query = @"SELECT CategoryID FROM Categories INNER JOIN Products ON Categories.CategoryID = Products.CategoryID"; // CheckDataWithExecuteReaderResult(query, resultRowCount, list); }
public void TestJoinWithOneChildAndFilteredByCategoryNameV2() { const string categoryName = "Condiments"; const int resultRowCount = 12; //create root node var root = new JoinNode(typeof (Product)); // add child node Category with propertyName "Products". // Because Category linked with Product by next property: // public EntitySet<Product> Products var categoryNode = new JoinNode(typeof(Category), "Category", "Products"); root.AddChildren(categoryNode); var queryDesinger = new QueryDesigner(context, root); // add condition for filtering by CategoryName == "Condiments" queryDesinger = queryDesinger.Where(new Condition("CategoryName", categoryName, ConditionOperator.EqualTo, typeof (Category))); var list = new List<Product>(queryDesinger.Cast<Product>()); Assert.AreEqual(resultRowCount, list.Count); string query = @"SELECT ProductID FROM Products INNER JOIN Categories ON Products.CategoryID = Categories.CategoryID WHERE Categories.CategoryName = N'Condiments'"; CheckDataWithExecuteReaderResult(query, resultRowCount, list); }
public void TestExcept() { const int resultRowCount = 2; // create QueryDesigner with ElementType == Product var queryDesinger = new QueryDesigner(context, typeof(Product)); //create root node which elementType has the same type in queryDesigner var root = new JoinNode(typeof(Product)); // create child node Category with propertyName "Products". // Because Category linked with Product by next property: // public EntitySet<Product> Products var categoryNode = new JoinNode(typeof(Category), "Category", "Products"); // add categoryNode to root node root.AddChildren(categoryNode); // create filter by Product.ProductName like "%l%" var productNameCondition = new Condition("ProductName", "l", ConditionOperator.Like); // create filter by Category.Description like "Sweet%" var categoryNameCondition = new Condition("Description", "Sweet", ConditionOperator.StartsWith, typeof(Category)); // create condition list with already created conditions var conditionList = new ConditionList(productNameCondition, categoryNameCondition); // make join Product table with Category filtered by conditions // and ordered by already created ordering queryDesinger = queryDesinger.Join(root, conditionList); QueryDesigner cloneQueryDesigner = (QueryDesigner)queryDesinger.Clone(); queryDesinger = queryDesinger.Skip(0).Take(3); cloneQueryDesigner = cloneQueryDesigner.Skip(2).Take(4); queryDesinger = queryDesinger.Except(cloneQueryDesigner); var list = new List<Product>(queryDesinger.Cast<Product>()); Assert.AreEqual(resultRowCount, list.Count); }