skip filter problem

skip filter

class MembersController < ApplicationController
  # GET /members
  # GET /members.json
  
  skip_filter :authenticate, :only => [:new, :create, :index]
  before_filter :authenticate_self_or_admin, :only => [:edit, :destroy]
  
  def authenticate_self_or_admin
    m = Member.find(session[:member_id]) 
    if m.role == 'Admin'
      
    elsif session[:member_id].nil?
      
      flash[:alert] = 'You need to login first.'
      redirect_to(:controller => 'admin', :action => 'login')
      
    elsif session[:member_id].to_s != params[:id]
      
      flash[:alert] = 'You cannot perform this action.'
      redirect_to(:controller => 'admin', :action => 'login')
    end
  end