c = "(f.profile_id = #{self.id} OR f.friend_id = #{self.id})"
    c += AND + "(CASE WHEN f.profile_id=#{self.id} THEN f.friend_id ELSE f.profile_id END = p.id)"
    c += AND + "(CASE WHEN f.profile_id=#{self.id} THEN f.profile_rejected ELSE f.friend_rejected END = 1)"
    c += AND + "(p.banned = 0)"

I need this to be used in a has_many relationship like this:

    has_many :removed_friends, :conditions => ???

how do i set there the self.id?, or how do i pass there the id? Then i want to use the will_paginate plugin:

    @profile.removed_friends.paginate(:page => 1, :per_page => 20)

Thanks for your help

EDIT:

 class Profile < ActiveRecord::Base
    has_many :friendships
    has_many :removed_friends, :class_name => 'Profile', :through => :friendships, :conditions => 
        "(friendships.profile_id = #{self.id} OR friendships.friend_id = #{self.id})"
        "AND (CASE WHEN friendships.profile_id=#{self.id} THEN friendships.profile_rejected ELSE friendships.friend_rejected END = 1)" + 
        "AND (p.banned = 0)"
  end


class Friendship < ActiveRecord::Base
  belongs_to :profile
  belongs_to :removed_friend, :class_name => 'Profile', :foreign_key => "(CASE WHEN friendships.profile_id = #{self.id} THEN friend_id ELSE profile_id END)"
end