module Goldberg
  class RolesController < ApplicationController
    include Goldberg::Controller

    # GETs should be safe (see http://www.w3.org/2001/tag/doc/whenToUseGet.html)
    verify :method => :post, :only => [ :destroy, :create, :update ],
    :redirect_to => { :action => :list }

    def index
      list
      render :action => 'list'
    end

    def list
      @roles = Role.find(:all,
                         :order => 'name')
    end

    def show
      @role = Role.find(params[:id])
      @rps = RolesPermission.find_for_role(@role.id)
      @roles = @role.get_parents
      foreign
    end

    def new
      @role = Role.new
      foreign()
    end

    def create
      @role = Role.new(params[:role])
      if @role.save
        Role.rebuild_cache
        flash[:notice] = 'Role was successfully created.'
        redirect_to :action => 'list'
      else
        foreign
        render :action => 'new'
      end
    end

    def edit
      @role = Role.find(params[:id])
      foreign
    end

    def update
      @role = Role.find(params[:id])
      if @role.update_attributes(params[:role])
        Role.rebuild_cache
        @role = Role.find(params[:id])
        flash[:notice] = 'Role was successfully updated.'
        redirect_to :action => 'show', :id => @role.id
      else
        foreign
        render :action => 'edit'
      end
    end

    def destroy
      Role.find(params[:id]).destroy
      redirect_to :action => 'list'
    end

    protected

    def foreign
      if @role.id
        @other_roles = Role.find(:all,
                                 :conditions => ['id not in (?)', @role.id],
                                 :order => 'name')
      else
        @other_roles = Role.find(:all,
                                 :order => 'name')
      end
      @other_roles ||= Array.new
      @other_roles.unshift Role.new(:id => nil, :name => '(none)')
      @users = User.find(:all,
                         :conditions => ['role_id = ?', @role.id],
                         :order => 'name')
    end
    
  end
end