Can't mass-assign protected attributes: item

[pailoro]

I'm using this plugin with the convetions, but get this error:

ERROR:

Can't mass-assign protected attributes: item

class ShoppingCartsController < ApplicationController
before_filter :extract_shopping_cart
def create
@Product = Video.find(params[:product_id])
@shopping_cart.add(@Product, @product.price)
redirect_to shopping_cart_path
end
def show

[muhammadn]

Could you show what your models for shopping_cart and shopping_cart_item ?

[pailoro]

Controller:

class ShoppingCartsController < ApplicationController
  before_filter :extract_shopping_cart
  def create
    @product = Video.find(params[:product_id])
    @shopping_cart.add(@product, @product.price) # the error is generated on that line
    redirect_to shopping_cart_path
  end

Heres my model ShoppingCart

# == Schema Information
#
# Table name: shopping_carts
#
#  id         :integer          not null, primary key
#  created_at :datetime         not null
#  updated_at :datetime         not null
#

class ShoppingCart < ActiveRecord::Base
    acts_as_shopping_cart

    attr_accessible :price

    #accepts_nested_attributes_for :price
end

and the model ShoppingCartItem

# == Schema Information
#
# Table name: shopping_cart_items
#
#  id         :integer          not null, primary key
#  owner_id   :integer
#  owner_type :string(255)
#  quantity   :integer
#  item_id    :integer
#  item_type  :string(255)
#  price      :float
#  created_at :datetime         not null
#  updated_at :datetime         not null
#

class ShoppingCartItem < ActiveRecord::Base
  attr_accessible :owner_id, :owner_type, :quantity, :item_id, :item_type, :price
  acts_as_shopping_cart_item
end

[muhammadn]

Unless you need the column fields like :owner_id, :owner_type, :quantity, :item_id, :item_type, :price

to be accessible by the controller, you don't actually need attr_accessible for those fields.

My code:

class ShoppingCart < ActiveRecord::Base

  acts_as_shopping_cart
  # attr_accessible :title, :body

  def tax_pct
    0.0
  end
end

class ShoppingCartItem < ActiveRecord::Base

  acts_as_shopping_cart_item
  # attr_accessible :title, :body 
end

The items in the shopping cart are stored internally by the gem and there is no need for attr_accessible.

[pailoro]

Right. Thanks!

But now, when I clik on

<%= link_to 'Add to cart', shopping_cart_path(:product_id => @v.id), :method => 'POST' %>

when I'm running and it redirect to shoping cart page, the item its not added to my cart. =(

[muhammadn]

Should be

<%= link_to 'Add to cart', shopping_cart_path(:product_id => @product), :method => 'POST' %>

as your create action to add the item to cart is:

def create
    @product = Video.find(params[:product_id])
    @shopping_cart.add(@product, @product.price) # the error is generated on that line
    redirect_to shopping_cart_path
end

[pailoro]

But my controller to this is:

# encoding: utf-8
class ComprarController < SuperSiteController

   def index
    @v = Video.order('created_at asc')
    @n = News.all
    @cat = Category.all

    respond_to do |format|
        format.html # index.html.erb
        format.json { render json: @v }
      end

 end

  def show
    @v = Video.find(params[:id])
    @n = News.all
    @cat = Category.all

    respond_to do |format|
              format.html # show.html.erb
               format.json { render json: @v }
           end

       end
    end

[muhammadn]

In your ShoppingCartController,

there is

def create
   @product = Video.find(params[:product_id])
end

[pailoro]

Hi!!

Thnaks by the gelp!!

I'm getting it here:

Couldn't find Video without an ID

class ShoppingCartsController < SuperSiteController
  before_filter :extract_shopping_cart
  def create
    @product = Video.find(params[:product_id])
    @shopping_cart.add(@product, @product.price)
    redirect_to shopping_cart_path
  end
  def show

[pailoro]

And when I change the add link from:

<%= button_to 'Add to cart', shopping_cart_path(:product_id => @product), :method => 'POST' %>

to:

<%= button_to 'Add to cart', shopping_cart_path(:product_id => @v.id), :method => 'POST' %>

I get the error above:

[pailoro]

I saw the log of passenger on my online server and it is returning this:

App 23916 stdout: Started GET "/comprar/gary-semics-mx-vol-01" for 189.38.85.9 at 2014-08-22 10:04:28 -0300
App 23916 stdout: Processing by ComprarController#show as HTML
App 23916 stdout:   Parameters: {"id"=>"gary-semics-mx-vol-01"}
App 23916 stdout:   Rendered comprar/show.html.erb within layouts/site (30.7ms)
App 23916 stdout: Completed 500 Internal Server Error in 37.8ms
App 23916 stdout: 
App 23916 stdout: ActionView::Template::Error (undefined method `shopping_cart_path' for #<#<Class:0x00000003cc4ae0>:0x00000003af1f38>):
App 23916 stdout:     112: 
App 23916 stdout:     113:            
App 23916 stdout:     114: 
App 23916 stdout:     115:               <%= button_to 'Add to cart', shopping_cart_path(:product_id => @v.id), :method => 'POST' %>
App 23916 stdout:     116: 
App 23916 stdout:     117: 
App 23916 stdout:     118: 
App 23916 stdout:   app/views/comprar/show.html.erb:115:in `_app_views_comprar_show_html_erb__1444626235673011822_22184820'
App 23916 stdout:   app/controllers/comprar_controller.rb:29:in `show'

I'm using the gem "FriendlyId" for permalinks. i think it should be the cause of the error, incompatibility?