Help with associations

I need some help with linking my database tables and models. I have: User Profile Post A User has many posts, one profile and many friends(other users). I want to display the users posts and the users friends posts on the profile. How should i build the database(like friendship between users) a

Need help with table associations

I need help how i should link these tables together. I have Users Profile Posts Users is suposed to have one profile and many Posts. The Users are also suposed to have many friends(other users). I want to display the users posts and the users friends posts on the profile. How should I link the