LoadBy method returns null if provided parameter is 0 - codefluent

Question

My model contains an entity with a numeric property:
<cf:entity name="Land">
<cf:property name="Id" key="true" />
<cf:property name="Landcode" typeName="ushort" nullable="false" usePersistenceDefaultValue="false" />
<cf:method name="LoadByLandcode"
body="LOADONE(ushort landCode) WHERE Landcode = #landcode">
</cf:method>
</cf:entity>
The generated code for the LoadByLandcode method looks like this:
public static Land LoadByLandcode(ushort landCode)
{
if ((landCode == CodeFluentPersistence.DefaultUInt16Value))
{
return null;
}
Land land = new Land();
CodeFluent.Runtime.CodeFluentPersistence persistence = CodeFluentContext.Get(BusinessLayerStoreName).Persistence;
persistence.CreateStoredProcedureCommand(null, "Land", "LoadByLandcode");
persistence.AddParameter("#landCode", landCode);
System.Data.IDataReader reader = null;
try
{
reader = persistence.ExecuteReader();
if ((reader.Read() == true))
{
land.ReadRecord(reader, CodeFluent.Runtime.CodeFluentReloadOptions.Default);
land.EntityState = CodeFluent.Runtime.CodeFluentEntityState.Unchanged;
return land;
}
}
finally
{
if ((reader != null))
{
reader.Dispose();
}
persistence.CompleteCommand();
}
return null;
}
Why does CodeFluent return null if the provided landCode parameter is 0?
I do not want this to happen, because landCode 0 is also a valid value in the database.
How can I change this behaviour?

Answer 1

The parameter of the method uses the persistence default value (0 by default). So to avoid the default value check, you have to indicate the parameter is nullable:
<cf:method name="LoadByLandcode"
body="LOADONE(Landcode?) WHERE Landcode = #Landcode">
</cf:method>
public static Land LoadByLandcode(ushort landcode)
{
Land land = new Land();
CodeFluent.Runtime.CodeFluentPersistence persistence = CodeFluentContext.Get(Constants.StoreName).Persistence;
persistence.CreateStoredProcedureCommand(null, "Land", "LoadByLandcode");
persistence.AddRawParameter("#Landcode", landcode);
System.Data.IDataReader reader = null;
try
{
reader = persistence.ExecuteReader();
if ((reader.Read() == true))
{
land.ReadRecord(reader, CodeFluent.Runtime.CodeFluentReloadOptions.Default);
land.EntityState = CodeFluent.Runtime.CodeFluentEntityState.Unchanged;
return land;
}
}
finally
{
if ((reader != null))
{
reader.Dispose();
}
persistence.CompleteCommand();
}
return null;
}