I was trying to figure out how to implement method_missing in C# 4, based on all of 2 blog posts floating around on IDynamicObject.
What I want to do is have a Business Logic Layer that has a Repository, and if the method is missing from the Business Logic Layer, just call the Repository and pass through its result. So i have a class that looks like this:
public class CustomerServices : IDynamicObject
{
protected CustomerRepository _Repository = new CustomerRepository();
MetaObject IDynamicObject.GetMetaObject(Expression parameter)
{
return new RepositoryMetaObject<CustomerRepository>(_Repository, parameter);
}
}
In RepositoryMetaObect I implement the Call method like so:
public override MetaObject Call(CallAction action, MetaObject[] args)
{
typeof(T).GetMethod(action.Name).Invoke(_Repository, getParameterArray(args));
return this;
}
(The rest of RepositoryMetaObject code probably isn't interesting, but I've included it here: http://pastie.org/312842)
The problem I think is that I'm never doing anything with the result of the Invoke, I'm just returning the MetaObject itself.
Now when I do this:
dynamic service = new CustomerServices();
var myCustomer = service.GetByID(1);
GetByID is called, but if I try to access a property on myCustomer, is just hangs.
Can anyone please help?
Complete code can be downloaded ehre: https://dl.getdropbox.com/u/277640/BusinessLogicLayer.zip