Introduction to ELGG, the Open Source Social Network Platform

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An introduction to ELGG, which is an extendable Open Source Social Network Platform. Get you social network in minutes, totally in your control, extendable to support any feature, and with support by a wonderful, ever-growing community.

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Introduction to ELGG, the Open Source Social Network Platform

  1. 1. An Introduction to www.mobicules.com [email_address]
  2. 2. What is Elgg ? <ul><li>Elgg built on LAMP and is open source </li></ul><ul><li>Roll out your own social network </li></ul><ul><li>Bundles social networking components </li></ul><ul><li>Building on Elgg is easy </li></ul>
  3. 3. Components Pages RSS Files Tags Comment Blog Messages Widgets Friends/Groups Forum
  4. 4. Features <ul><li>Advanced user management and administration </li></ul><ul><li>Cross-site tagging </li></ul><ul><li>Powerful access control list </li></ul><ul><li>Internationalization support </li></ul><ul><li>Multiple view support (eg. cell phone, iPhone) </li></ul><ul><li>Advanced templating engine </li></ul><ul><li>Widget framework </li></ul><ul><li>Opensocial support </li></ul>
  5. 5. Customize Page
  6. 6. Elgg Data Model
  7. 7. Events <ul><li>Events triggered when certain things happen </li></ul><ul><ul><li>User Action </li></ul></ul><ul><ul><li>Callbacks </li></ul></ul><ul><ul><li>Special Events (Boot, Init) </li></ul></ul><ul><li>Hook has to be registered to handle the specific events </li></ul>register_elgg_event_handler('init','system','entities_init');
  8. 8. Views <ul><li>Elgg site can support different interface pages </li></ul><ul><ul><li>Standard HTML </li></ul></ul><ul><ul><li>HTML optimised for accessibility </li></ul></ul><ul><ul><li>Mobile Internet </li></ul></ul><ul><ul><li>iPhone </li></ul></ul><ul><ul><li>Embeddable widget </li></ul></ul>
  9. 9. Plugins <ul><li>Most of the end user functionality in Elgg comes from plugins </li></ul><ul><li>Plugins reside under /mod folder </li></ul><ul><ul><li>start.php : control hub of a plugin </li></ul></ul><ul><ul><li>Register plugin inside Elgg init event </li></ul></ul>register_elgg_event_handler('init','system','entities_init');
  10. 10. Creating a Simple Blog Plugin <ul><li>Create Form </li></ul><ul><li>Create Object View </li></ul><h1><?php echo $vars['entity']->title; ?></h1>   <p><?php echo $vars['entity']->body; ?></p>   <?php echo elgg_view('output/tags', array('tags' => $vars['entity']->tags)); ?> <form action=&quot;<?php echo $vars['url']; ?>action/blog/save&quot; method=&quot;post&quot;>   <?php echo elgg_echo(&quot;title&quot;); ?><br /> <?php echo elgg_view('input/text',array('internalname' => 'title')); ?> <?php echo elgg_echo(&quot;body&quot;); ?><br /> <?php echo elgg_view('input/longtext',array('internalname' => 'body')); ?> <p><?php echo elgg_echo(&quot;tags&quot;); ?><br /> <?php echo elgg_view('input/tags',array('internalname' => 'tags')); ?></p>   <p><input type=&quot;submit&quot; value=&quot;<?php echo elgg_echo('save'); ?>&quot; /></p>   </form>
  11. 11. Contd… <ul><li>Create Save File </li></ul>$blogpost = new ElggObject();   $blogpost->title = get_input('title');   $blogpost->description = $description; $blogpost->access_id = ACCESS_PUBLIC; $blogpost->owner_guid = $_SESSION['user']->getGUID(); $blogpost->save();   $blogpost->tags = string_to_tag_array(get_input('tags')); forward($blogpost->getURL()); <ul><li>Display Blog </li></ul>require_once(dirname(dirname(dirname(__FILE__))).engine/start.php&quot;); $body = list_entities('object','blog',0,10,false); $body = elgg_view_layout('one_column', $body); page_draw(&quot;Our Blog&quot;,$body);
  12. 12. Business Opportunities in Elgg <ul><li>Education (Social E-learning) </li></ul><ul><ul><li>Universities </li></ul></ul><ul><ul><li>Schools </li></ul></ul><ul><li>Social Intranet for organizations </li></ul><ul><ul><li>Employee activities </li></ul></ul><ul><ul><li>Knowledge base </li></ul></ul><ul><ul><li>Company events </li></ul></ul><ul><li>Custom Social Networks </li></ul>
  13. 13. Profile
  14. 14. Groups
  15. 15. Dashboard
  16. 16. Files
  17. 17. <ul><li>Thanks </li></ul>

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