How to pass parameters when I load store via direct proxy ?

[qwertz2012]

I'm trying to load a store with proxy type direct and some parameters like this:

store.load({
   params:{paramName: paramValue}
});

The store looks like this:

Ext.create('Ext.data.Store', {
            storeId: 'testStore',
            model: 'testModel',
            proxy: {
                type: 'direct',
                directFn: Ext.php.Server.test
                },
            });

But it only works when using proxy type ajax. When using proxy type direct no parameter is in the json string.

Are there any hints?
Thanks

[mitchellsimoens]

Do you have paramsAsHash or paramOrder set on the proxy?

[qwertz2012]

I have tried both options but I found the problem on the server side. In the api declaration the len option was set to zero. After changing it to the number of allowed paramemters everything works as expected.