Custom script filter across two variable

[jk-onnet]

If I want to filter a variable based on another variable value, how do I do so?
Example:
There is two ObjectVar(), both are devices.
device = ObjectVar(...)
device2 = ObjectVar(...)

My first device name is thisismyname.
My second device name is thisismynamethatsolong.

After user selected device ObjectVar(), thisismyname. I want to filter device2 (thisismynamethatsolong) ObjectVar which included the first device name (thisismyname). How do I do that?

There is name__ic api filter, but how I get device value?
I know there is $device, but it is only the id.