Modern PerlCommerce

Modern PerlCommerce
Past and Future
API
Development & Deployment

Modern PerlCommerce

Stefan Hornburg (Racke)
racke@linuxia.de

Pittsburgh Perl Workshop, 8th October 2011

racke Modern PerlCommerce

Modern PerlCommerce
Perl Buzzwords
Past and Future
Modern Perl
API
PerlCommerce Choices

Nitesi


Modern PerlCommerce
Perl Buzzwords
Past and Future
Modern Perl
API

Perl Buzzwords

Marketing Perl
Modern Perl
Postmodern Perl


Modern PerlCommerce
Perl Buzzwords
Past and Future
Modern Perl
API

Modern Perl

CPAN
Best Practices
Tests
Separation (Modules, Plugins, Hooks, Templates)
PSGI/Plack


Modern PerlCommerce
Perl Buzzwords
Past and Future
Modern Perl
API


Interchange
Handel
Agora
Business::Cart::Generic


Modern PerlCommerce
Past and Future Past
API Future

Past

1995 CGI
1995 MiniVend
1998 http://www.materialboerse.de/
2001 Interchange


Modern PerlCommerce
API Future

Interchange Development

Lot of things
Small community
Same codebase


Modern PerlCommerce
API Future

Status quo


Modern PerlCommerce
API Future

References

Backcountry http://www.backcountry.com/
FragnanceNet http://www.fragrancenet.com/


Modern PerlCommerce
API Future

Future


Modern PerlCommerce
API Future

Principles

KISS
Components
Agnostic
Expressive


Modern PerlCommerce
API Future

Agnostic

Cart
Session
DBI
Webservice *


Modern PerlCommerce
API Future

Agnostic

Account Manager
DBI
LDAP *
OpenID *


Modern PerlCommerce
API Future

Agnostic

Templating Engine
Template::Toolkit
Template::Flute


Modern PerlCommerce
API Future

Agnostic

Web framework
Catalyst
Mojo
Dancer


Modern PerlCommerce
API Future

Preferences

Dancer
Template::Flute
DBI


Modern PerlCommerce
API Future

Framework

Dispatching requests
Parameter parsing
Session handling
Template engine
I18N


Modern PerlCommerce
API Future

Extensions

Bundles
Plugins
Hooks


Modern PerlCommerce
API Future

Features

Navigation
Cart
Checkout
Accounts


Modern PerlCommerce Cart
Past and Future Checkout
API Accounts and Access Control
Development & Deployment Forms

Cart

SKU, Name, Quantity, Price
Price > 0
Combines automatically
Multiple carts
Storage everywhere
Price caching



Nitesi::Cart Methods

use Dancer : : P l u g i n : : N i t e s i ;

c a r t −>add ( sku => ’POM253 ’ , name => ’ Pomelo ’ ,
p r i c e => 3 . 0 0 , q u a n t i t y => 1 0 ) ;

c a r t −>remove ( sku => ’POM253 ’ ) ;

c a r t −>count ( ) ;

c a r t −>c l e a r ( ) ;

c a r t −> t o t a l ( ) ;

c a r t −>s u b t o t a l ( ) ;



Everything is a Cart

Saved Carts
Wishlists
Collections



Multiple Carts

c a r t ( ’ w i s h l i s t ’ )−>add ( sku => ’ORA322 ’ , name => ’ Orange ’ ,
p r i c e => 2 . 0 0 , q u a n t i t y => 5 ) ;



Cart Backends

Session
DBI



Inventory Check

MinQuantityField min_quantity
MaxQuantityField inventory : q u a n t i t y



Inventory Check Hook

hook ’ b e f o r e _ c a r t _ a d d ’ => sub {
my ( $ c a r t , $item ) = @_;
my ( $ i n v e n t o r y ) ;

$ i n v e n t o r y = query −> s e l e c t _ f i e l d ( t a b l e => ’ p r o d u c t s ’ ,
f i e l d => ’ i n v e n t o r y ’ ,
where => { sku => $item −>{sku } } ) ;

i f ( $item −>{ q u a n t i t y } > $ i n v e n t o r y ) {
$item −>{ e r r o r } = ’ Out o f s t o c k ’ ;
}
};



Cart Hooks

before_cart_add
after_cart_add



Cart Hooks

before_cart_remove
after_cart_remove



Checkout

Taxes
Shipping
Payment
Invoice



Payment

Business::OnlinePayment



Tax Modules on CPAN

Business::Tax::Canada
Business::CA::GST
Business::Tax::VAT
Business::Tax::VAT::Validation



Shipping

Simple Shipping
Crazy Shipping
Shipping API



Costs

$ c a r t −>a p p l y _ c o s t ( amount => 5 ) ;

$ c a r t −>a p p l y _ c o s t ( amount => 0 . 1 9 , r e l a t i v e => 1 ) ;



PDF Invoices

HTML template
Template::Flute::PDF



Accounts

p o s t ’ / l o g i n ’ => sub {
i f ( account −>l o g i n ( username => params ( ’ body ’ ) − >{username } ,
password => params ( ’ body ’ ) − >{password } ) ) {
r e d i r e c t ’ / customerservice ’ ;
}
else {
redirect ’ / login ’ ;
}
};



Accounts

g e t ’ / checkout ’ => sub {
i f ( account −>a c l ( check => ’ s u b m i t _ o r d e r s ’ ) ) {
r e t u r n t e m p l a t e ’ checkout ’ ;
}

redirect ’ / access_denied ’ ;
};



Account manager

Account Providers
Login/Logout
Account Information
Login status
Forgot password
Registration



Account Provider

DBI
LDAP *
Htpasswd *
OpenID *
OAuth *



Access Control

User
Roles
Permissions



Forms

Display
Validation
Storage


Modern PerlCommerce
Dancer
Past and Future
Contribution
API
The End

Routes

Categories
Products
Cart
Checkout
Login/Logout
Customer Service


Modern PerlCommerce
Dancer
Past and Future
Contribution
API
The End

Default Route

g e t q r { / ( . ∗ ) } => sub {
my ( $sku ) = s p l a t ;
my $ p r o d u c t ;

# check f o r e x i s t i n g p r o d u c t
i f ( $ p r o d u c t = database −>q u i c k _ s e l e c t ( ’ p r o d u c t s ’ , { sku => $sku } ) )
# display flypage
template ’ flypage ’ , $product ;
}
else {
# d i s p l a y n o t found page
s t a t u s ’ not_found ’ ;
f o r w a r d ’ 404 ’ ;
}
};


Modern PerlCommerce
Dancer
Past and Future
Contribution
API
The End

CPAN/GitHub

http://search.cpan.org/dist/Nitesi/
http://search.cpan.org/dist/Nitesi-DBI/
http://search.cpan.org/dist/
Dancer-Plugin-Nitesi/

https://github.com/racke/Nitesi
https://github.com/racke/Nitesi-DBI
https:
//github.com/racke/Dancer-Plugin-Nitesi


Modern PerlCommerce
Dancer
Past and Future
Contribution
API
The End

The End

Slides: http://www.linuxia.de/talks/perlcommerce/
perlcommerce-beamer.pdf
Project: https://vsc.state.gov/


Modern PerlCommerce

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