Developing a Joomla 3.x Component using RAD/FOF - Joomladay UK 2014

Joomladay UK 2014Joomladay UK 2014

by Peter Martin www.db8.nl / @pe7er

Developing a Joomla Component using RAD/FOF

>>> Sheets available: www.db8.nl <<<

>>> Component: https://github.com/pe7er/db8locate <<<

Overviewa)Introduction

b)Rapid Application Development (RAD) / FOF

c)Developing a Joomla component, back-end

d)Developing a Joomla component, front-end

a) Introduction: Web Application● From scratch

– PHP/MySQL/HTML/CSS/JavaScript

● Joomla component: Joomla = Framework

– Database object

– Layout Template

– Access Control List (ACL)

– MVC → template overrides

– Plugins

a) Functionality component back-end● Items - List

– Display list of items

– New / Edit an item

– Delete item(s)

– Publish/unpublish item(s)

● Category - List

– Display list of categories

– New / Edit a category

– Delete categories

– Publish/unpublish categories

● Category - Form

– Display form of a category

– Save a category

● Item - Form

– Display form of an item– Save an item

a) Functionality component front-end● Items

– Display list of items

● Category

– Display list of categories

● Category

– Display category details

● Item

– Display item details

b) Rapid Application Development (RAD)

● Abstracting common code functionality● Conventions● Don’t Repeat Yourself (DRY)

● Nooku Framework ('Koowa') – Johan Janssens– Joomlatools extensies (DOCman), Anahita

● Framework on Framework – Nicholas Dionysopoulos– Basis of Akeeba Backup, Admin Tools etc

b) Software Development Framework

Rapid Application Development (RAD)● RAD = Framework on Framework (since J 3.2)

– Extension of Joomla! Platform

– Backwards compatible

– Less code → faster development & less bugs

– Bootstrap

– Jquery

– JSON

Rapid Application Development (RAD)● Convention over configuration ->

FOF convention:

● naming of functions● database field names

-> automatic (“automagic”) functionality

● How to use?

– XML → “configure” component using FOF

– PHP → more control over output

– Anything different? → Override / extend FOF code like models, controllers

RAD/ FOF/ F0F ?● FOF (F O F)

– Akeeba etc

● RAD – FOF implementation– In Joomla core since 3.2

● F0F (F zero F) – Fork of FOF– Akeeba etc

c) Joomla Component with FOF – back-end

c) Joomla Component with FOF● Development Environment

– Local web environment (LAMP/XAMP/MAMP)

– phpMyAdmin

– Joomla 3.3.x installation

– Git (software version control) + github.com

– IDE for PHP:● Netbeans / PHPStorm / Eclipse / ”weapon of choice”

“db8 locate” componentManage & display locations on a Google Map – Name: “db8 Locate”

– Component name: com_db8locate

– Database tabel name: #__db8locate_items

>>> Show example of back-end in browser

1. basic component (back-end)

1. basic component (back-end)1.Entry point

/administrator/components/com_db8locate/db8locate.php

2.Dispatcher configuration/administrator/components/com_db8locate/fof.xml

3.SQL definition of database table(s)/administrator/components/com_db8locate/sql/install/mysql/install.sql

4.XML installation manifest/administrator/components/com_db8locate/db8locate.xml

5.View: list/administrator/components/com_db8locate/views/items/tmpl/form.default.xml

6.View: form/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

7.Language files/administrator/components/com_db8locate/language/en-GB/en-GB.com_db8locate.sys.ini + en-GB.com_db8locate.ini

1.1 basic component – entry point/administrator/components/com_db8locate/db8locate.php

<?phpdefined('_JEXEC') or die();

// Load FOFinclude_once JPATH_LIBRARIES.'/fof/include.php';

// Quit if FOF is not installedif(!defined('FOF_INCLUDED')) { JError::raiseError ('500', 'FOF is not installed');}

FOFDispatcher::getTmpInstance('com_db8locate')->dispatch();

1.2 basic comp. – dispatcher config/administrator/components/com_db8locate/fof.xml

● <?xml version="1.0" encoding="UTF-8"?>● <fof>

● <backend>● <dispatcher>

● <option name="default_view">items</option></dispatcher>

● </backend>● </fof>

1.3 basic component – SQL definition● Create SQL installation file:

/administrator/components/com_db8locate/sql/install/mysql/install.sql

install.sql contains:– CREATE TABLE, table name (plural):

#__db8locate_items

– ID field contains component- & fieldname (singular)db8locate_item_id (in Joomla: “id”)

– PRIMARY KEY (`db8locate_item_id`) = ID field

1.3 basic component – SQL definition/administrator/components/com_db8locate/sql/install/mysql/install.sql

CREATE TABLE IF NOT EXISTS `#__db8locate_items` (● `db8locate_item_id` bigint(20) UNSIGNED NOT NULL AUTO_INCREMENT,● `title` varchar(255) NOT NULL,● PRIMARY KEY (`db8locate_item_id`)● ) DEFAULT CHARSET=utf8;

1.4 basic component – XML manifest 1/2/administrator/components/com_db8locate/db8locate.xml

<?xml version="1.0" encoding="utf-8"?><extension version="3.2" type="component" method="upgrade"> <name>db8 locate</name> <author>Peter Martin</author> <creationDate>12 September 2014</creationDate> <copyright>Copyright (C) 2014 Peter Martin / db8.nl</copyright> <license>GNU General Public License version 2</license> <authorEmail>joomla@db8.nl</authorEmail> <version>1.0.1</version> <description>Component to manage and display locations on a Google Map</description>

<install>

● <sql>● <file driver="mysql" charset="utf8">sql/install/mysql/install.sql</file>● <file driver="mysql">sql/install/mysql/install.sql</file>●

● <file driver="mysqli" charset="utf8">sql/install/mysql/install.sql</file>● <file driver="mysqli">sql/install/mysql/install.sql</file>● </sql>● </install>

1.4 basic component – XML manifest 2/2/administrator/components/com_db8locate/db8locate.xml

<administration>  <menu view="cpanel">COM_DB8LOCATE</menu>

<files folder="backend"> <folder>sql</folder>

<filename>db8locate.php</filename> <filename>fof.xml</filename> </files>

</administration>

</extension>

1.5 basic component – view list/administrator/components/com_db8locate/views/items/tmpl/form.default.xml

<?xml version="1.0" encoding="UTF-8"?>●

● <form type="browse"● show_header="1"● show_filters="1"● show_pagination="1"● norows_placeholder="COM_DB8LOCATE_COMMON_NORECORDS">● ● <headerset>● <header name="db8locate_item_id" type="rowselect" tdwidth="20" />● <header name="title" type="fieldsearchable" sortable="true"

buttons="yes" buttonclass="btn" />● </headerset>●

● <fieldset name="items">● <field name="db8locate_item_id" show_id="true" type="selectrow"/>● <field name="title" type="text" show_link="true" url="index.php?option=com_db8locate

&view=item&id=[ITEM:ID]" empty_replacement="(no title)" />● </fieldset>●

● </form>

1.6 basic component – view form/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

<?xml version="1.0" encoding="UTF-8"?>●

● <form validate="true" serverside_validate="true">●

● <fieldset name="basic_configuration"● label="COM_DB8LOCATE_LOCATION_ITEM_EDIT"●

description="COM_DB8LOCATE_LOCATION_ITEM_EDIT_BASIC_DESC"● class="span4">● ● <field name="title" type="text"● class="inputbox"● label="JGLOBAL_TITLE"● required="true"● Size="50" />

● </fieldset>● </form>

1. basic component – installation

Via Extensions > Extension Manager > Discover

1. basic component (back-end)● List view

1. basic component (back-end)● Form view

1. basic component (back-end)● List view after couple of new & save

2. language file

2. language filesys.ini → For menu items etc.Put in /language/ map of db8locate component!

/administrator/components/com_db8locate/language/en-GB/en-GB.com_db8locate.sys.ini

COM_DB8LOCATE="db8 Locate"COM_DB8LOCATE_XML_DESCRIPTION="Component to manage and display locations on a Google Map"

2. language file.ini → large file for all language lables com_db8locate

/administrator/components/com_db8locate/language/en-GB/en-GB.com_db8locate.ini

TIP: “Debug Language” & collect all “lables to translate”

COM_DB8LOCATE="db8 Locate"COM_DB8LOCATE_TITLE_ITEMS="Location Items"COM_DB8LOCATE_COMMON_NORECORDS="No Location Items"COM_DB8LOCATE_TITLE_ITEMS_EDIT="Edit Location Items"COM_DB8LOCATE_LOCATION_ITEM_EDIT="Location Items"COM_DB8LOCATE_LBL_ITEM_SAVED="Location Item saved"COM_DB8LOCATE_CONFIRM_DELETE="Delete Location Item?"

2. language file

3. switch on/off

3. switch on/off – database fieldNew field “enabled” to store publication status

ALTER TABLE `#__db8locate_items` ADD `enabled` TINYINT( 3 ) NOT NULL DEFAULT '1';

3. switch on/off – database field/administrator/components/com_db8locate/views/items/tmpl/form.default.xml

Add to <headerset>●

● Add to <fieldset name="items">

● <field name="enabled" type="published"/>●

3. switch on/off

3. switch on/off – form/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

Add to <fieldset>●

<field name="enabled" type="list" label="JSTATUS"

● labelclass="todo-label"● class="inputbox"● filter="intval" size="1" default="1" >● <option value="1">JPUBLISHED</option>● <option value="0">JUNPUBLISHED</option>● </field>●

3. switch on/off – form

4. order

4. order – database fieldNew database field “ordering”

ALTER TABLE `#__db8locate_items` ADD `ordering` INT( 11 ) NOT NULL DEFAULT '0';

4. order – list/administrator/components/com_db8locate/views/items/tmpl/form.default.xml

<field name="ordering" type="ordering" labelclass="order"/>●

4. order

5. categories

5. categories – database fieldAdd new database field “catid” to store category_id

ALTER TABLE `#__db8locate_items` ADD `catid` INT( 10 ) UNSIGNED NOT NULL DEFAULT '0';

5. categories – list/administrator/components/com_db8locate/views/items/tmpl/form.default.xml

Note: xml has hardcoded SQL for MySQL → should be model instead

5. categories – list

5. categories – form/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

<field name="catid" type="category"

● extension="com_db8locate"● class="inputbox"● label="JCATEGORY"● required="true"● size="1" /> ●

5. categories – form

5. categories – toolbar/administrator/components/com_db8locate/toolbar.php

● <?phpdefined('_JEXEC') or die();

class Db8locateToolbar extends FOFToolbar {

public function Db8locateHelperRenderSubmenu($vName) { return $this->renderSubmenu($vName); }

public function renderSubmenu($vName = null) { if (is_null($vName)) { $vName = $this->input->getCmd('view', 'cpanel'); } $this->input->set('view', $vName);

parent::renderSubmenu(); $toolbar = FOFToolbar::getAnInstance($this->input->getCmd('option',

'com_db8locate'), $this->config); $toolbar->appendLink(Jtext::_('COM_DB8LOCATE_SUBMENU_CATEGORIES'),

'index.php?option=com_categories&extension=com_db8locate', $vName == 'categories');

5. categories – toolbar

5. categories – toolbar in Category ManagerCreate button in Category Manager to navigate back to “Items”:/administrator/components/com_db8locate/helpers/db8locate.php

● <?php● defined('_JEXEC') or die();●

● /**● * Helper to display db8 locate component submenus in com_categories● */● abstract class Db8locateHelper {●

● public static function addSubmenu($submenu) {JsubMenuHelper::addEntry(JText::_(

'COM_DB8LOCATE_TITLE_ITEMS'), 'index.php?option=com_db8locate', $submenu == 'locations');

JsubMenuHelper::addEntry(JText::_('COM_DB8LOCATE_SUBMENU_CATEGORIES'), 'index.php?option=com_categories&view=categories&extension=com_db8locate', $submenu == 'categories');

● }● }

5. categories – Category Manager

Click on “Location Categories”, Result:

Warning: Invalid argument supplied for foreach() in /var/www/rad/libraries/cms/helper/content.php on line 121

6. access levels

1. Access to application

6. access levels application 1/2/administrator/components/com_db8locate/access.xml

● <?xml version="1.0" encoding="utf-8"?>● <access component="com_db8locate">● ● <section name="component">

● <action name="core.admin" title="JACTION_ADMIN"description="JACTION_ADMIN_COMPONENT_DESC" />

● <action name="core.create" title="JACTION_CREATE" description="JACTION_CREATE_COMPONENT_DESC" />

● <action name="core.delete" title="JACTION_DELETE" description="JACTION_DELETE_COMPONENT_DESC" />

● <action name="core.edit" title="JACTION_EDIT" description="JACTION_EDIT_COMPONENT_DESC" />

● <action name="core.edit.state" title="JACTION_EDITSTATE"

description="JACTION_EDITSTATE_COMPONENT_DESC" />● </section>

6. access levels application 2/2/administrator/components/com_db8locate/access.xml

● <section name="category">● <action name="core.manage" title="JACTION_MANAGE"

description="JACTION_MANAGE_COMPONENT_DESC" />● <action name="core.create" title="JACTION_CREATE"

description="COM_CATEGORIES_ACCESS_CREATE_DESC" />● <action name="core.delete" title="JACTION_DELETE"

description="COM_CATEGORIES_ACCESS_DELETE_DESC" />● <action name="core.edit" title="JACTION_EDIT"

description="COM_CATEGORIES_ACCESS_EDIT_DESC" />● <action name="core.edit.state" title="JACTION_EDITSTATE"

description="COM_CATEGORIES_ ACCESS_EDITSTATE_DESC" />

● </section>●

● </access>

6. access levels

2. (Front-end) access to database items

6. access levels – list

7. parameters

7. parameters/administrator/components/com_db8locate/config.xmlvia Components > db8 locate > categories > [options]

● <?xml version="1.0" encoding="UTF-8"?>● <config>●

● <fieldset name="permissions"● label="JCONFIG_PERMISSIONS_LABEL"● description="JCONFIG_PERMISSIONS_DESC" >●

● <field name="rules"● type="rules"● label="JCONFIG_PERMISSIONS_LABEL"● class="inputbox"● filter="rules"● component="com_db8locate"● section="component" />●

● </fieldset>●

● </config>

8. multilingual

8. multilingual – database fieldAdd new field “language” to store language code

ALTER TABLE `#__db8locate_items` ADD `language` CHAR( 7 ) NOT NULL DEFAULT '*';

8. multilingual – list/administrator/components/com_db8locate/views/items/tmpl/form.default.xml

<field name="language" type="text" tdwidth="10%" />●

8. multilingual – form/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

<field name="language" type="contentlanguage"

label="JFIELD_LANGUAGE_LABEL" >● <option value="*">JALL</option>● </field> ● ●

8. multilingual – form/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

<field name="language" type="contentlanguage"

label="JFIELD_LANGUAGE_LABEL" >● <option value="*">JALL</option>● </field> ● ●

8. multilingual – list

9. “magic fields”

9. “magic fields”● Present in component:

enabled (“state”), ordering,

● Also add to database table: created_by, created_on(“created”), modified_by, modified_on(“modified”), locked_by(“checked_out”), locked_on(“checked_out_time”), hits

● In list view: created_by & created_on● In form view: all fields

10. tags

#__tags tabel stores tags:

id title4 Joomla5 Linux

#__contentitem_tag_map links content items and tags:

type_alias core_content_id content_item_id tag_id type_idcom_content.article 1 1 2 1com_content.article 1 1 3 1com_content.article 3 2 4 1com_content.article 3 2 5 1com_weblinks.weblink 2 1 4 2com_weblinks.weblink 2 1 5 2

10. tags – form/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

</field>

10. tags

Unfortunately ... not working... bug in Joomla to versie 3.2.3: Use of com_tags only possible if JTable is used in component.

11. my own fields...

11. db8locate – database fieldAdd your own fields to database

ALTER TABLE `jos_db8locate_items` ● ADD `location` VARCHAR( 60 ) NOT NULL ,● ADD `address` VARCHAR( 50 ) NOT NULL ,● ADD `postcode` VARCHAR( 12 ) NOT NULL ,● ADD `city` VARCHAR( 50 ) NOT NULL ,● ADD `region` VARCHAR( 50 ) NOT NULL ,● ADD `country` VARCHAR( 50 ) NOT NULL ,● ADD `latitude` VARCHAR( 10 ) NOT NULL ,● ADD `longitude` VARCHAR( 10 ) NOT NULL ,● ADD `website` VARCHAR( 100 ) NOT NULL

11. db8locate – list

11. db8locate – further improvements● Update your SQL installation script:

/administrator/components/com_db8locate/sql/install/mysql/install.sql

● If "required fields" are not completed, then "save" results in emptying the fields...

/administrator/components/com_db8locate/models/items.php●

class Db8directoryModelItems extends F0Fmodel {● protected $_savestate = 1;● protected function loadFormData() {● Jfactory::getApplication()->● setUserState('com_db8locate.add.item.data', '');●

● if (empty($this->_formData)) {● return array();● } else {● return $this->_formData;● }● }● }

11. db8locate – further improvements● Edit form too long → divide into columns

/administrator/components/com_db8locate/views/item/tmpl/form.form.xml

/administrator/components/com_db8locate/views/item/tmpl/form.form.xml●

<fieldset name="basic_configuration" label="COM_DB8LOCATE_ITEM_LOCATION" class="span4"> fields in column 1 </fieldset>

● <fieldset name="address" label="COM_DB8LOCATE_ITEM_ADDRESS" class="span4"> fields in column 2 </fieldset>

11. db8locate – further improvements● Lookup Coordinates of each Address at Google Maps API

– Add lookup code for Google Map API in Model

– Add button in Toolbar

– Add handling in Controller

d) Joomla Component with FOF – front-end

12. basic component (front-end)1.Entry point

/components/com_db8locate/db8locate.php

2.View: list/components/com_db8locate/views/items/tmpl/form.default.xml/components/com_db8locate/views/items/metadata.xml –> for menu

3.View: single item/components/com_db8locate/views/item/tmpl/form.item.xml/components/com_db8locate/views/item/metadata.xml –> for menu

4.Language files/components/com_db8locate/language/en-GB/en-GB.com_db8locate.ini

12.1 front-end – entry point/administrator/components/com_db8locate/db8locate.php

<?phpdefined('_JEXEC') or die();

// Load FOFinclude_once JPATH_LIBRARIES.'/fof/include.php';

// Quit if FOF is not installedif(!defined('FOF_INCLUDED')) { JError::raiseError ('500', 'FOF is not installed');}

FOFDispatcher::getTmpInstance('com_db8locate')->dispatch();

12.2 front-end – view list/components/com_db8locate/views/items/tmpl/form.default.xml

<?xml version="1.0" encoding="UTF-8"?><form type="browse" show_header="1" show_filters="0" show_pagination="1" show_enabled="1" norows_placeholder="COM_DB8LOCATE_COMMON_NORECORDS" > <headerset> <header name="title" type="fieldsearchable" sortable="true"buttons="true" /> <header name="city" type="fieldsearchable" sortable="true"buttons="false" /> <header name="region" sortable="true"buttons="false" /> <header name="country" sortable="true"buttons="false" tdwidth="20%" /> <header name="category" sortable="false"buttons="false" /> </headerset>

12.2 front-end – view list

12.3 front-end – view details/components/com_db8locate/views/item/tmpl/form.item.xml

<?xml version="1.0" encoding="utf-8"?>● <form● type="read">● ● <fieldset name="a_single_item" class="item-container form-horizontal">● <field name="title" type="text"● label="COM_DB8LOCATE_TITLE"● class="db8locate-title-field"● size="50"/>●

● <field name="city" type="text"● label="COM_DB8LOCATE_CITY"● labelclass="db8locate-field"● size="20" />●

● <field name="website" type="text"● label="COM_DB8LOCATE_WEBSITE"● labelclass="db8locate-field"● size="40" />● ● </fieldset>● </form>

12.3 front-end – view details

12.4 language files

/components/com_db8locate/language/en-GB/en-GB.com_db8locate.ini

TIP: “Debug Language” & collect all “lables to translate”

13. more views

13. more viewsCombine XML & PHP/components/com_db8locate/views/items/tmpl/default.phpand load form.default.xml

E.g. mix with Google Maps

<?php$viewTemplate = $this->getRenderedForm();echo $viewTemplate;?>

13. more views – mixed php & xml

13. more viewsExtra (built-in) output options:

&format=csvadministrator/index.php?option=com_db8locate&format=csv

&format=jsonadministrator/index.php?option=com_db8locate&format=json

d) tools

Errors● IMHO Harder to detect than "regular" Joomla

component!● Cache!!● Debug

– E.g. back-end error: “An error has occurred. 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'ORDER BY node.lft' at line 4 SQL=SELECT node.id FROM jos_categories AS node, jos_categories AS parent WHERE node.lft BETWEEN parent.lft AND parent.rgt AND parent.id = ORDER BY node.lft”

can be caused by error in the front-end!Test: rename front-end com_db8locate temporary

– Front-end error:Notice: Undefined variable: form_class in /var/www/rad/libraries/fof/render/strapper.php on line 676

Test: rebuilt .xml files step-by-step

– print_r($object) / echo $query / die(“stop here!”)

Sources● Documentation

https://www.akeebabackup.com/documentation/fof.html

● FOF Mailinglist: https://groups.google.com/forum/#!forum/frameworkonframework

● Source code Github: https://github.com/akeeba/fof

● Examples:https://github.com/akeeba/todo-fof-example/ https://github.com/akeeba/contactus Akeeba Backup, Akeeba Ticket Systemhttps://github.com/tuum/com_timesheet

ContactPresentation available at:http://www.db8.nl

Component db8locate available at:https://github.com/pe7er/db8locate

Peter Martin

e-mail: info at db8.nl

website: www.db8.nl

twitter: @pe7er

Review this presentation: https://joind.in/talk/view/11625

Used Photos 1/2● Speed Typing - Matthew Bowden http://www.sxc.hu/photo/275499

● Speedometer – Abdulhamid AlFadhly http://www.sxc.hu/photo/1390189

● LONDON SKYLINE CLIP ART http://www.clker.com/clipart-london-skyline-19.html

● Forjados 1 - Albert Lazcano http://www.sxc.hu/photo/626785

● Bengali Keyborad - Mohammad Jobaed Adnan http://www.sxc.hu/photo/676844

● Old Light Switches - Paul Cross http://www.sxc.hu/photo/1259922

● madera en pila 1 - jean froidevaux http://www.sxc.hu/photo/313864

● Books books books... - Brandon Blinkenberg http://www.sxc.hu/photo/424027

● Sign 3: forbidden access - Davide Guglielmo http://www.sxc.hu/photo/200982

Used Photos 2/2● Communications Receiver - John Munsch http://www.sxc.hu/photo/260775

● Flags of the Baltic Sea countries - Johannes Raitio http://www.sxc.hu/photo/471547

● Lock - Robert Linder http://www.sxc.hu/photo/1395379

● Basho Collage 5 - Billy Alexander http://www.sxc.hu/photo/1330749

● Earth: Night Edition - Europe - Sigurd Decroos http://www.sxc.hu/photo/140879

● Retro/Vintage TV set - "meltingdog" http://www.sxc.hu/photo/1440150

● san sebastian views 1 - ibon san martin http://www.sxc.hu/photo/94018

● Tools - J Boontje http://www.sxc.hu/photo/805571

● The End Book, EWikist, 2010 http://commons.wikimedia.org/wiki/File:The_End_Book.png

Developing a Joomla 3.x Component using RAD/FOF - Joomladay UK 2014

Technology

Joomladay UK - Joomla! Where Are We Now

Developing a Joomla 3.x Component using RAD FOF- Part 1: Back-end - Joomladay Germany 2014

Where is joomla! going @ JoomlaDay™ Poland 2014

Have you tried turning it off and on again? Troubleshooting Joomla! problems - Joomladay South Africa 2013

Joomla on Raspberry Pi (with Nginx) - Joomladay Germany 2013

Rapid application development using Akeeba FOF and Joomla 3.2

Joomladay Brazil 2011 - The Future of Joomla

SEO In Joomla - Patrick Jackson (JoomlaDay Melbourne & Sydney 2010)

Developing new feature in Joomla - Joomladay UK 2016

GSoC: Schema.org microdata semantics in Joomla! – JoomlaDay™ 2013 Naples

Joomladay Switzerland - security

SEO In Joomla - Patrick Jackson (JoomlaDay Sydney 2009)

Joomladay Hu 2008 - SEO For Joomla! 1.5

Two-factor authentication w Joomla! - JoomlaDay Polska 2015

What Is / Why / How to Join Joomla! Community - JoomlaDay Poland 2014

Joomladay Greece 2011 - The Joomla Dilemma

Joomla on Raspberry Pi (with Nginx) - Joomladay South Africa 2013

Introduction to building joomla! components using FOF

Joomladay NL 2011 - Belgium Police and Joomla

JoomlaDay Madrid,Spain 2014 - Joomla! community - that rocks!