My site allows users to create a "booking request" node related to a "vehicle" node. I use an Entity Reference to connect the two by prepopulating a "Vehicle" field on the "booking request" node via a string in the URL:
I would like to display a views block on this overlaid page with more info from the related vehicle. As you can see, the NID of the vehicle is in the URL (84), but I don't know how to target it.
I'm familiar with grabbing a path component from the URL, but it's the &field_vehicle=84 that is new to me. Any ideas?