Help with using triggers for a specific reason. Custom Glazed Terracotta help

So I know I need to use a trigger for when neighbor block changes on my block, but I'm wondering if their is more needed to do. 

I'm wanting to make my block work & act like glazed terracotta, on all sides. But also make it so it can't be pushed/pulled by pistons. Do i need to make a global variable or trigger that tells the game if honey/slime touch said block, it can continue to move without moving my block?