make me a sandwich, tienda
TRANSCRIPT
Make me a sandwich, Tienda!Lukas Polak, Dioscouri Design
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Who am I?
• Leading developer of Tienda e-commerce in Dioscouri Design
• Participant of J!SOP 2010
• Student at CTU Faculty of Information Technology in Prague
• Passionate about Joomla for 5 years
"Tell me what you eat, and I will tell you what you are.“ Brillat-Savarin
What am I going to talk about?
• Brief description of Tienda & plugins
• 3 simple rules to follow when working with plugins
• “layout” modifications
• Adding new features
• Inserting new steps into
business logic
“Ladies & gentlemen, please fasten your seatbelts. We are about to start, ” captain said
Source codes
• All extensions shown during this presentation will be published for free afterwards
• http://projects.dioscouri.com/svn/tienda/branches/jab11/
• Installation package of Joomla! 1.5.26 + Tienda which is used during this session will be provided in JPA format generated by extension Akeeba Backup v. 3.4.3. (www.akeebabackup.com)
• admin/pass
• All demo extensions are simplified• Demo #2 uses jQuery library• Rest demos require MooTools Upgrade plugin
Plugin
• Small & witty piece of code
• Change or extend behavior • Events
• No support for layout overrides• Can by added
Observer vs. mediator pattern
• Observer• Notify about change in state
• Mediator• Extend their business logic
Tienda
• Basic package
• 18 modules, 29 plugins, 6 payment plugins, 4 shipping
plugins
• Joomla! 2.5 ready Languages
• One-page Checkout (OPC) in the basic package
• Number of events 400+ (last JAB) vs. 470+ (today)
• For more information visit
http://dioscouri.com/joomla-extensions/tienda-eco
mmerce
Lego v2.0
• Ask “what would the customer want to do with our extension”
• Do not over think usage of events
• Think outside of the box
Ask “what would the customer want to do with our extension”
• Do you really need this to be so flexible?
• Consider opportunity cost
• Being too flexible is NOT a good thing
• Always bigger room for bugs
Do not over think usage of events
- Cannot we already do this using another approach?- Do not bend rules too much – causes problems in future
- Will anybody use it?- Better to wait until somebody asks for it
Think outside of the box
• List through names of all events
• Did not find one that rings a bell or seemed helpful
• Plugins are not an ultimate tool for everything
• Combination of plugins & layout overrides
Rule #1 - Demo #1 – “Shoes size chart”
• Insert a shoes size chart into product view of every shoes in the shop
• Pick the right place• Improvements
• Filter Product Layouts• Filter Categories• Custom Width
“Your customer is your boss”
Rule #1 - Demo #1 – “Shoes size chart”“Your customer is your boss”
Rule #1 - Demo #2 – “Cool gallery”
• Images in product gallery varies based on chosen product
attributes
• Use AJAX
• onPrepareGalleryImages( &$Images )
• Chaining effect
• Use jQuery event handler .on()
• $jq( '.product_buy' ).on( 'change', '#attribute_'+
plgDemo2.attr_id , function() {});
“Your customer is your boss”
Rule #1 - Demo #2 – “Cool gallery”“Your customer is your boss”
Rule #2 - Demo #3 – “Custom” field
• List of flags• Let user to pick one
• Use hidden input field• Added to Tienda EAV for this purpose
• onPrepareProducts & onPrepareProductsList• Make sure that the product will not save data!
• Improvements• Different set of flags• Multiple selection• Make it more customizable• Tie it up with gallery plugin (demo #2)
Rule #2 - Demo #3 – “Custom” field
Rule #3 – Demo #4 – Every n-th order for free
• Gives customer discount during checkout• Based on specified criteria
• Great marketing move• Code once, works everywhere
• OPC, std checkout, POS• Improvements
• Only x% discount• On n-th order in row from the same user• Shipping discount
“One rule to rule them all”
Rule #3 – Demo #5 – Conduct a survey
• Ask user a question before making payment• Voluntary survey
• Pick a correct place to put the survey• onBefore(After)DisplaySelectShipping ($order)• onValidateSelectPayment($values)• onAfterStoreOrders($order)
• Checkout process may depend on its results• Check for age of the customer
• Improvements• Offer a discount – quiz• Multiple-choice questions• Time deadline
“One rule to rule them all”
Rule #3 – Demo #5 – Conduct a survey“One rule to rule them all”
Big finale – Demo #6 – One click to buy
• Add to cart and complete checkout process in one click• Uses data from logged user (default billing & shipping addresses)
• Amazon uses this feature• People tend to spend more money thanks to it
• Making use of checkout controller method• Ensures better
• Improvements• Enables admin to control what payment plugins
are used• Letting user to choose shipping method
“The sooner, the better. It was too late yesterday!”
Big finale – Demo #6 – One click to buy“The sooner, the better. It was too late yesterday!”
