Ok let me explain better because i am real stuck here. I have custom post type Projects (buildings), and i have custom post type Apartments. How can i assign some specific apartments to belong to some projects. For example i have Project 1, Project 2, and i have Apartment 1 and Apartment 2. How can i create relationship between those , i want to asign Apartment 2 to Project 1. Then i want to display on apartment-single.php some data from project 1 like location, features etc.
