I'm trying out the ServiceStack MVC PowerPack, and am trying the included OrmLite ORM and am trying to get data from a table referenced by a foreign key without any idea how to do so.
In the OrmLite examples that use the Northwind database, for example, would it be possible to return a Shipper object that included the "ShipperTypeName" as a string looked up through the foreign key "ShipperTypeID"?
From http://www.servicestack.net/docs/ormlite/ormlite-overview, I'd like to add the ShipperName field to the Shipper class if possible:
[Alias("Shippers")]
public class Shipper : IHasId<int>
{
[AutoIncrement]
[Alias("ShipperID")]
public int Id { get; set; }
[Required]
[Index(Unique = true)]
[StringLength(40)]
public string CompanyName { get; set; }
[StringLength(24)]
public string Phone { get; set; }
[References(typeof(ShipperType))]
public int ShipperTypeId { get; set; }
}
[Alias("ShipperTypes")]
public class ShipperType : IHasId<int>
{
[AutoIncrement]
[Alias("ShipperTypeID")]
public int Id { get; set; }
[Required]
[Index(Unique = true)]
[StringLength(40)]
public string Name { get; set; }
}
To do this you would need to use Raw SQL containing all the fields you want and create a new Model that matches the SQL, so for this example you would do something like:
public class ShipperDetail
{
public int ShipperId { get; set; }
public string CompanyName { get; set; }
public string Phone { get; set; }
public string ShipperTypeName { get; set; }
}
var rows = dbCmd.Select<ShipperDetail>(
@"SELECT ShipperId, CompanyName, Phone, ST.Name as ShipperTypeName
FROM Shippers S INNER JOIN ShipperTypes ST
ON S.ShipperTypeId = ST.ShipperTypeId");
Console.WriteLine(rows.Dump());
Which would output the following:
[
{
ShipperId: 2,
CompanyName: Planes R Us,
Phone: 555-PLANES,
ShipperTypeName: Planes
},
{
ShipperId: 3,
CompanyName: We do everything!,
Phone: 555-UNICORNS,
ShipperTypeName: Planes
},
{
ShipperId: 4,
CompanyName: Trains R Us,
Phone: 666-TRAINS,
ShipperTypeName: Trains
}
]
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