好友关注、关注人数

def visitnos#好友关注
     seeme=Seemefriends.find(:last,:conditions=>"from_user_id=#{session[:user].id} and to_user_id=#{self.id}")
     if seeme
       seeme.update_attributes (:created_at=>Time.now)
     else
        seeme=Seemefriends.new
        seeme.from_user_id=session[:user].id
        seeme.to_user_id=self.id
        seeme.save
        self.visitno=self.visitno+1
        self.save
     end    
   end