####################################################################################

  def start
    product   = nil
    project   = nil
    cart_item = nil
    if params[ :product_id ]
      product = Product.find( params[ :product_id ] ) rescue nil
      unless product
        handle_error "Invalid Product ID"
        redirect_to :controller => 'main', :action => 'welcome'
        return
      end
    elsif params[ :project_id ]
      id      = params[ :project_id ].to_i
      project = Project.find( id ) rescue nil
      if project.nil? || ( project.user_id != @actual_user.id )
        handle_error "Invalid Project ID"
        redirect_to :controller => 'main', :action => 'welcome'
        return
      end
      cart_item = project.make_temp_storage
      if cart_item.nil?
        handle_error "This project can't be edited because of major DB change"
        redirect_to :controller => 'personal', :action => 'works'
        return
      end
      product = cart_item.product
    else
      handle_error "Invalid URL"
      redirect_to :controller => 'main', :action => 'welcome'
    end

    deploy_hash = session[ :deploy_hash ] || {}
    id          = CGI::Session.generate_unique_id
    unless cart_item
      deploy_hash.update( id => "" )
    else
      deploy_hash.update( id => cart_item.id )
      cart = session[:cart0] ||= Cart.new
      cart.add_item cart_item
    end
    session[ :deploy_hash ] = deploy_hash
    redirect_to :action => 'step1', :product_id => product.id, :item_id => id
  end

####################################################################################

  def start
    deploy_hash = session[:deploy_hash] || {}
    id = CGI::Session.generate_unique_id

    if params[:product_id]
      product = Product.find(params[:product_id])
      project   = nil
      cart_item = nil
      deploy_hash.update(id => "")
    elsif params[:project_id]
      project = Project.find(params[:project_id])
      raise HHImagingException, "There is no permissions" if project.user_id != @actual_user.id
      cart_item = project.make_temp_storage
      product = cart_item.product
      deploy_hash.update(id => cart_item.id)
      cart = session[:cart0] ||= Cart.new
      cart.add_item cart_item
    else
      raise Exception, "Invalid URL"
    end

    session[:deploy_hash] = deploy_hash
    redirect_to :action => 'step1', :product_id => product.id, :item_id => id
  end

####################################################################################