[Handel] subclassing Handel::Order in Catalyst

[Ryan Lauterbach]

Yaaaa, its working!

Christopher H. Laco wrote:
> Ryan Lauterbach wrote:
>   
>> Christopher H. Laco wrote:
>>     
>>> Ryan Lauterbach wrote:
>>>  
>>>       
>>>> Hi,
>>>>
>>>> I have successfully subclassed Handel::Cart and Handel::Cart::Items
>>>> in .99_14 to add extra fields in cart_items.  Now i need to copy the
>>>> cart_items fields over to order_items upon checkout.  I believe I
>>>> need to override copy_cart_items per the Handel::Order POD so here
>>>> are my classes which don't work.  Thanks for looking:
>>>>     
>>>>         
<bigsnip>

I'll summarize the steps I took to get custom cart_items and order_items 
columns working in a catalyst/handel app (if only for my benefit):

* I used the "Better" approach from 
http://search.cpan.org/~claco/Handel/lib/Handel/Manual/Cookbook/AddingColumns.pod 
to create custom cart and cartitem classes:

package RMA::M::HandelCart;
use strict;
use warnings;
use base qw/Handel::Cart/;

__PACKAGE__->item_class('RMA::M::HandelItem');


1;

package RMA::M::HandelItem;

use strict;
use warnings;
use base qw/Handel::Cart::Item/;

__PACKAGE__->storage->add_columns(qw/logo logo_data logo_type photo_type 
photo_data photo c
__PACKAGE__->create_accessors;

1;


* I then defined a custom Catalyst::Model::Handel::Order class, 
specifying custom order_class

package RMA::M::Order;
use strict;
use warnings;

BEGIN {
    use base qw/Catalyst::Model::Handel::Order/;
};

__PACKAGE__->config(
    connection_info => ['dbi:mysql:db', 'user', 'pass'],
    order_class => 'RMA::M::HandelOrder',
);

* And in that custom Handel::Order class, point to your custom 
Handel::Cart class and define the custom order item class, and override 
copy_cart_items:

package RMA::M::HandelOrder;
use strict;
use warnings;
use base qw/Handel::Order/;

__PACKAGE__->cart_class('RMA::M::HandelCart');
__PACKAGE__->item_class('RMA::M::HandelOrderItem');

sub copy_cart_items {
    my ($self, $order, $cart) = @_;

    foreach my $item ($cart->items) {
        $order->add($item);
    }

    return;
}

* Create the custom Handel::Order::Item class, with same columns as your 
custom Handel::Cart::Item class

package RMA::M::HandelOrderItem;

use strict;
use warnings;
use base qw/Handel::Order::Item/;

__PACKAGE__->storage->add_columns(qw/logo logo_data logo_type photo_type 
photo_data photo c
__PACKAGE__->create_accessors;

1;

* Now we need the Checkout controller to use our custom Handel::Order 
class, so create a custom Handel::Checkout class:

package RMA::M::CustomCheckout;

use strict;
use warnings;
use base qw/Handel::Checkout/;

__PACKAGE__->order_class('RMA::M::HandelOrder');

1;

* and then in your Checkout controller instantiate your CustomCheckout 
class instead of the default Handel::Checkout:

i.e. replace Handel::Checkout->new    with    RMA::M::CustomCheckout->new



-----------------------------------------------------------


Ok, hope I haven't left anything out, or added too many superfluous 
steps.  Thanks for the help Chris, and the framework!


-Ryan