Single page apps with drupal 7
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It's no denying that rich Javascript applications (sometimes called One Page Applications) are a big thing, but what if you want to leverage Drupal on the backend, or have an existing site? Tools like Angular.JS and EmberJS are great when you have an API, but Drupal 7 doesn't really have an API layer. I'll explore the parts of a one page application and how to integrate it into either an existing or a new Drupal site, and the pitfalls that one must watch out for.
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Single page apps with drupal 7
- 1. Single Page Apps with Drupal 7 Chris Tankersley ZendCon 2015 ZendCon 2015 1
- 2. Who Am I • PHP Programmer for over 10 years • Drupal developer for 5 years • h>ps://github.com/dragonmantank ZendCon 2015 2
- 3. What is a Single Page Application? • An applicaFon that loads itself in in a single page ZendCon 2015 3
- 4. What is a Single Page Application? • Loads all the necessary HTML, CSS, and JS needed in a single page load • Loads all the necessary HTML, CSS, and JS needed to bootstrap an applicaFon in a single page load ZendCon 2015 4
- 5. Traditional Application Workflow ZendCon 2015 5 Browser Server User requests a page Server returns a response 1) Server gets the request 2) Server calls PHP 3) PHP builds the HTML Browser Server User requests a page Server returns a response 1) Server gets the request 2) Server calls PHP 3) PHP builds the HTML
- 6. This is heavy ZendCon 2015 6
- 7. No, it’s really heavy ZendCon 2015 7
- 8. Single Page Application workflow ZendCon 2015 8 Browser Server User requests a page Server returns a response 1) Server gets the request 2) Server returns base HTML Browser requests data Server returns a response 1) Server gets the request 2) Server calls PHP 3) PHP returns JSON Browser requests data Server returns a response 1) Server gets the request 2) Server calls PHP 3) PHP returns JSON …
- 9. SPAs are great! • Reduce server load • More responsive • Separates the server and the front end • Make the front end people do all the work ZendCon 2015 9
- 10. SPA ALL THE THINGS! ZendCon 2015 10
- 11. ZendCon 2015 11
- 12. It’s not all great • Users have to have JS enabled • SEO SUUUUUUUUUUUUUUCKS • This will probably break navigaFon • This will probably break your analyFcs • Your host might not support it ZendCon 2015 12
- 13. Drupal 7 doesn’t support SPAs ZendCon 2015 13
- 14. … or does it? ZendCon 2015 14
- 15. It doesn’t out of the box ZendCon 2015 15
- 16. Why do you want a Single Page Application? ZendCon 2015 16
- 17. Create an SPA if… • You want a more desktop-‐like experience • A lot of data is coming and going • You want/have a good API backend • The interface lends itself to being an SPA ZendCon 2015 17
- 18. GMail makes sense ZendCon 2015 18 h>p://3.bp.blogspot.com/-‐y96KrBvSbuQ/Tgu5oLmVZyI/AAAAAAAAAKE/EFkwE1ZIic8/s1600/threadlist-‐large.png
- 19. My blog doesn’t ZendCon 2015 19
- 20. Don’t create an SPA if… • You just want to reduce page refreshes • You think it sounds cool ZendCon 2015 20
- 21. tl;dr: Only create an SPA if it makes sense ZendCon 2015 21
- 22. Parts of a Single Page Application ZendCon 2015 22
- 23. The knee bone is connected to… • Controllers • Chunks and Templates • RouFng • Data • Data Transport ZendCon 2015 23
- 24. Controllers ZendCon 2015 24 h>ps://en.wikipedia.org/wiki/Game_controller#/media/File:SNES-‐Controller.jpg
- 25. The logic of our application ZendCon 2015 25 function node_page_default() { $select = db_select('node', 'n') ->fields('n', array('nid', 'sticky', 'created')) ->condition('n.promote', 1) ->condition('n.status', 1) ->orderBy('n.sticky', 'DESC') ->orderBy('n.created', 'DESC') ->extend('PagerDefault') ->limit(variable_get('default_nodes_main', 10)) ->addTag('node_access'); $nids = $select->execute()->fetchCol(); if (!empty($nids)) { $nodes = node_load_multiple($nids); $build = node_view_multiple($nodes);
- 26. Chunks and Templates ZendCon 2015 26 <?php print render($page['header']); ?> <div id="wrapper"> <div id="container" class="clearfix"> <div id="header"> <div id="logo-floater"> <?php if ($logo || $site_title): ?> <?php if ($title): ?> <div id="branding"><strong><a href="<?php print $front_page ?>"> <?php if ($logo): ?> <img src="<?php print $logo ?>" alt="<?php print $site_name_and_slogan ?>" title="<?php print $site_name_and_slogan ?>" id="logo" /> <?php endif; ?> <?php print $site_html ?>
- 27. Routing ZendCon 2015 27 function hook_menu() { $items['example'] = array( 'title' => 'Example Page', 'page callback' => 'example_page', 'access arguments' => array('access content'), 'type' => MENU_SUGGESTED_ITEM, ); $items['example/feed'] = array( 'title' => 'Example RSS feed', 'page callback' => 'example_feed', 'access arguments' => array('access content'), 'type' => MENU_CALLBACK, ); return $items; }
- 28. Data ZendCon 2015 28 function node_schema() { $schema['node'] = array( 'description' => 'The base table for nodes.', 'fields' => array( 'nid' => array( 'description' => 'The primary identifier for a node.', 'type' => 'serial', 'unsigned' => TRUE, 'not null' => TRUE, ), // Defaults to NULL in order to avoid a brief period of potential // deadlocks on the index. 'vid' => array( 'description' => 'The current {node_revision}.vid version identifier.', 'type' => 'int’,
- 29. Data Transport • AJAX • AJAJ • AJAH ZendCon 2015 29
- 30. Sample SPA Application DEMO TIME! ZendCon 2015 30
- 31. Picking a JavaScript Framework ZendCon 2015 31
- 32. Backbone ZendCon 2015 32
- 33. EmberJS ZendCon 2015 33
- 34. AngularJS ZendCon 2015 34
- 35. Getting Drupal 7 to work with Single Page Applications ZendCon 2015 35
- 36. The Services Module ZendCon 2015 36
- 37. What does it do? “A standardized soluFon of integraFng external applicaFons with Drupal. Service callbacks may be used with mulFple interfaces like REST, XMLRPC, JSON, JSON-‐RPC, SOAP, AMF, etc. This allows a Drupal site to provide web services via mulFple interfaces while using the same callback code.” ZendCon 2015 37
- 38. Services does a lot of heavy lifting for you ZendCon 2015 38
- 39. Stop! Demo Time! ZendCon 2015 39
- 40. Getting it into your Drupal site ZendCon 2015 40
- 41. Use a .html file • Really easy to do • Doesn’t impact your exisFng site ZendCon 2015 41
- 42. Add it to a template • Start small ZendCon 2015 42
- 43. Just make a small module • Gives you more control ZendCon 2015 43
- 44. Questions? ZendCon 2015 44
- 45. Thank You! h>p://ctankersley.com chris@ctankersley.com @dragonmantank h>p://joind.in/talk/view/15586 ZendCon 2015 45