/// <summary>
/// Adds a Thing to the session.
/// </summary>
public static Thing AddThing(string thingID)
{
return(Facts.AddThing(thingID));
}
/// <summary>
/// Returns a function representing the fact.
/// </summary>
public Func <Tvar> GetFunction()
{
// Get the template for the function, based on the relationship
Question q = Interactive.Templates.GetQ(Relationship);
// Set the function's arguments before invoking it
// Convert first argument from string to proper type
if (q.arg1Type == "Thing")
{
Engine.Thing1 = Facts.AddThing(Convert.ToString(Arg1));
}
else if (q.arg1Type == "Tbool")
{
Engine.Tbool1 = Convert.ToBoolean(Arg1);
}
else if (q.arg1Type == "Tnum")
{
Engine.Tnum1 = Convert.ToDecimal(Arg1);
}
else if (q.arg1Type == "Tstr")
{
Engine.Tstr1 = Convert.ToString(Arg1);
}
else if (q.arg1Type == "Tdate")
{
Engine.Tdate1 = Convert.ToDateTime(Arg1);
}
else if (q.arg1Type == "Tset")
{
Engine.Tset1 = (Tset)Arg1; // ?
}
// Second argument
if (q.arg2Type == "Thing")
{
Engine.Thing2 = Facts.AddThing(Convert.ToString(Arg2));
}
else if (q.arg2Type == "Tbool")
{
Engine.Tbool2 = Convert.ToBoolean(Arg2);
}
else if (q.arg2Type == "Tnum")
{
Engine.Tnum2 = Convert.ToDecimal(Arg2);
}
else if (q.arg2Type == "Tstr")
{
Engine.Tstr2 = Convert.ToString(Arg2);
}
else if (q.arg2Type == "Tdate")
{
Engine.Tdate2 = Convert.ToDateTime(Arg2);
}
else if (q.arg2Type == "Tset")
{
Engine.Tset2 = (Tset)Arg2;
}
// Third argument
if (q.arg3Type == "Thing")
{
Engine.Thing3 = Facts.AddThing(Convert.ToString(Arg3));
}
else if (q.arg3Type == "Tbool")
{
Engine.Tbool3 = Convert.ToBoolean(Arg3);
}
else if (q.arg3Type == "Tnum")
{
Engine.Tnum3 = Convert.ToDecimal(Arg3);
}
else if (q.arg3Type == "Tstr")
{
Engine.Tstr3 = Convert.ToString(Arg3);
}
else if (q.arg3Type == "Tdate")
{
Engine.Tdate3 = Convert.ToDateTime(Arg3);
}
else if (q.arg3Type == "Tset")
{
Engine.Tset3 = (Tset)Arg3;
}
// Return the lambda function
return(Interactive.Templates.GetQ(Relationship).theFunc);
}
