Get Control

Listing 2. You can use the rails framework's scaffold generator to create this controller class.

class CatalogsController < ApplicationController
  def index
    list
    render :action => 'list'
  end

  # 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 list
    @catalog_pages, @catalogs = paginate :catalogs, 
      :per_page => 10
  end

  def show
    @catalog = Catalog.find(params[:id])
  end

  def new
    @catalog = Catalog.new
  end

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

  def edit
    @catalog = Catalog.find(params[:id])
  end

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

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