All,
I put the before_filter in my inventory_controller and it worked...didn't
see that it doesn't belong in the Cart.rb file. Thanks for the help!
Cheers
Jon
On Sun, Sep 28, 2008 at 4:03 PM, Jon Liu <[EMAIL PROTECTED]> wrote:
> Heinbull,
>
> I tried to use the before_filter in my Cart Model...mind you it's not an
> actual sql table, it's just a class I created. From looking at reference
> tools it looks like before_filter is usually used for actualy table
> models.... but I tried it any way and I got the error "undefined method
> before_filter for Cart:Class".
>
> My Cart.rb file reads:
> class Cart
> attr_reader :items ,:total_price
> before_filter :initialize_cart
>
> def initialize
> @items = []
> @total_price=0
> end
>
>
> def add_product(product)
> current_item = @items.find {|item| ((item.product.title ==
> product.title) &&
> (item.product.itemType==product.itemType)&&(item.product.itemType==product.itemType))}
>
> #pass in the item object, returns the one being added item where
> item.album equals the
> #album is the title of the album in this case
> #traverses through the items array, if item[album]=album if the objects
> match up then it adds the album
> if current_item
> current_item.increment_quantity
> current_item.increment_price
> @[EMAIL PROTECTED]
> else
> @items << CartItem.new(product)
> @[EMAIL PROTECTED]
> end
> end
>
> private
> def initialize_cart
> unless session[:cart] # if there's no cart in the session
> session[:cart] = Cart.new # add a new one
> end #for the unless
> @cart=session[:cart]
> end
>
> end
>
>
> any insight? it would be optimal if I could use the before_filter so i
> owuldn't have to do find_cart in every page controller
>
>
> On Sun, Sep 28, 2008 at 3:59 PM, Jon Liu <[EMAIL PROTECTED]> wrote:
>
>> Phillip , my inventory_controller.rb:
>>
>> class InventoryController < ApplicationController
>>
>> def index
>> @albums=Album.find(:all)
>> @cart=find_cart
>> end
>>
>>
>>
>> def add_to_cart
>> itemType=params[:itemType]
>> productId=(params[:id]) #parameter passed in from "add to
>> cart" submission, it's either 1 or 2 in this case
>>
>> if itemType=='album'
>> product_temp=Album.find(productId)
>> dest='/inventory'
>> end
>> if itemType=='dvd'
>> product_temp=Dvd.find(productId)
>> dest='/inventory/dvd'
>> end
>>
>>
>> product=Product.new(itemType,product_temp.title,product_temp.price)
>> @cart=find_cart
>> @cart.add_product(product) #add the album to the cart in
>> the sessions
>> redirect_to dest
>> end
>>
>> def check_out
>> @cart=find_cart
>> redirect_to '/inventory/checkOut'
>> end
>>
>> def review
>> @cart=find_cart #for shopping car display in the sidebar
>> @title=(params[:title])
>> @itemType=(params[:itemType])
>>
>> if @itemType=='album' #must be a better way to reduce the amount of
>> redundant code
>> @album=Album.find_by_title(@title)
>> @review=Review.new
>> @[EMAIL PROTECTED] #Review.find(:all, :conditions =>
>> ["album = ?", @title])
>> end
>> if @itemType=='dvd'
>> @dvd=Dvd.find_by_title(@title)
>> @review=Review.new
>> @[EMAIL PROTECTED] #Review.find(:all, :conditions => ["album
>> = ?", @title])
>> end
>> end
>>
>> def dvd
>> @cart=find_cart
>> @dvds=Dvd.find(:all)
>> end
>>
>> end
>>
>> my application.rb:
>> # Filters added to this controller apply to all controllers in the
>> application.
>> # Likewise, all the methods added will be available for all controllers.
>>
>> class ApplicationController < ActionController::Base
>> helper :all # include all helpers, all the time
>> # session :session_key => '_inventory_session_id'
>> # See ActionController::RequestForgeryProtection for details
>> # Uncomment the :secret if you're not using the cookie session store
>> protect_from_forgery # :secret => '33dad663a17f28eb93b293523bcb06f2'
>>
>> def find_cart
>> unless session[:cart] # if there's no cart in the session
>> session[:cart] = Cart.new # add a new one
>> end #for the unless
>> session[:cart] # return existing or new cart
>> #session[:cart] ||=Cart.new #creates 1 cart session
>> #can also be written more efficiently as above
>> end
>>
>> def empty_cart
>> session[:cart]=nil
>> redirect_to '/inventory'
>> end
>>
>>
>> def find_cart
>> unless session[:cart] # if there's no cart in the session
>> session[:cart] = Cart.new # add a new one
>> end #for the unless
>> session[:cart] # return existing or new cart
>> end
>>
>> def log_out
>> session[:login]=nil
>> redirect_to '/inventory'
>> end
>>
>> end
>>
>>
>> find_cart is in application.rb and is used by many of the methods in my
>> inventory_controller file. for some reason it doesn't pull up any data when
>> in the check_out method....
>>
>>
>> On Sun, Sep 28, 2008 at 2:14 PM, heimdull <[EMAIL PROTECTED]> wrote:
>>
>>>
>>> From experience I would use a before_filter to load the cart for you
>>> controller...
>>>
>>> Something like:
>>>
>>> before_filter :initialize_cart
>>>
>>> private
>>>
>>> def initialize_cart
>>> if session[:cart_id]
>>> @cart = Cart.find(session[:cart_id])
>>> else
>>> @cart = Cart.create
>>> session[:cart_id] = @cart.id
>>> end
>>> end
>>>
>>> If you have an action you don't want the cart you can use :except =>
>>> "name"
>>>
>>>
>>> >>>
>>>
>>
>
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