I have two models and one admin model:
class Person(models.Model): firstname = models.CharField(maxlength=50) surname = models.CharField(maxlength=5
You need to create something like this in your FriendAdmin class:
class UserAdmin(admin.ModelAdmin): list_display = (..., 'get_reviews') def get_reviews(self, obj): return obj.book.review get_reviews.short_description = 'Review'