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 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");
}