7 reasons why developers should love Joomla!

REASON’S WHY
DEVELOPERS SHOULD
LOVE JOOMLA!
7
- Bartłomiej Krztuk -

BARTŁOMIEJ KRZTUK
@BARTEKKRZTUK
KRZTUK.PL
E-COMMERCE
SENIOR DEVELOPER

THIS PRESENTATION
CONTAINS CODE EXAMPLES
WARNING

- MODULES VIEW
- MODULES STYLE
- COMPONENTS VIEW
- PAGINATION
- LAYOUTS
- OFFLINE PAGE
- ERROR PAGE
- CSS FILES
- JAVASCRIPT FILES

// modules.php
function modChrome_no($module, &$params, &$attribs)
{
if ($module->content)
{
echo $module->content;
}
}
// somewhere in template layout file (index.php)
<jdoc:include type="modules" name="header_menu" style="no" />

OVERRIDE FOR /MEDIA FILES
WORKS ONLY WHEN FILES ARE
LOADED USING JHTML::_() METHOD
WARNING

HOW TO CLEAN <HEAD>
FROM JOOMLA! SCRIPTS?

unset($doc->_scripts[$this->baseurl.'/media/jui/js/jquery.min.js']);
unset($doc->_scripts[$this->baseurl.'/media/jui/js/jquery-noconflict.js']);
unset($doc->_scripts[$this->baseurl.'/media/jui/js/jquery-migrate.min.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/caption.js']);
unset($doc->_scripts[$this->baseurl.'/templates/sn_webshop/js/jui/bootstrap.min.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/a-core.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/mootools-more.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/core.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/punycode.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/validate.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/html5fallback.js']);
unset($doc->_scripts[$this->baseurl.'/media/editors/arkeditor/js/mootools-more-
light.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/modal.js']);
unset($doc->_scripts[$this->baseurl.'/media/system/js/frontediting.js']);
unset($doc->_script['text/javascript']);
RESET <HEAD> DATA OLD WAY

SINCE JOOMLA! 3.7.0
JFactory::getDocument()->resetHeadData('scripts');

public function resetHeadData($types = null)
{
if (is_null($types))
{
$this->title = '';
$this->description = '';
$this->link = '';
$this->_metaTags = array();
$this->_links = array();
$this->_styleSheets = array();
$this->_style = array();
$this->_scripts = array();
$this->_script = array();
$this->_custom = array();
}
……
return $this;
}
RESET <HEAD> DATA

$layout = new JLayoutFile('joomla.content.tags');
$layout->render($itemTags);
create layout ﬁle
provide data to layout

[0] => templates/mytemplate/html/layouts/com_mycomponent
[1] => components/com_mycomponent/layouts
[2] => templates/mytemplate/html/layouts
[3] => layouts
AUTO LAYOUT SEARCH

FORCE DIFFERENT COMPONENT
$layout = new JLayoutFile('joomla.content.tags', null,
array('debug' => true, 'component' => 'com_fields'));
[0] => /joomla/templates/protostar/html/layouts/com_fields
[1] => /joomla/components/com_fields/layouts
[2] => /joomla/templates/protostar/html/layouts
[3] => /joomla/layouts

CONCLUSION:
TEMPLATE ALWAYS WINS

JLAYOUT SUFFIXES
array('suffixes' => array('ltr')));
// filepath
components/com_custom/layouts/tags.ltr.php
array('suffixes' => array(JFactory::getLanguage()->getTag())));

PLUGINS
#3
and rendering ﬂow

source: https://docs.joomla.org/Application_execution_order
SIMPLIFIED RENDER FLOW
onAfterInitialise system plugins loaded
onAfterRoute routing done,
access to active menu item
onAfterDispatch component dispatched

source: https://docs.joomla.org/Application_execution_order
onAfterRender
entire HTML output is now available

PLUGIN WITHOUT PLUGIN?
$dispatcher->register('onAfterRender', function(){
$body = JResponse::getBody();
JResponse::setBody($body . '👏👏 J and Beyond 👏👏');
});

try {
…
echo new JResponseJson($result);
}
catch(Exception $e){
echo new JResponseJson($e);
}
JSON SUPPORT

{"success":true,"message":null,"messages":null,"data":
{"myfirstcustomparam":1,"mysecondcustomparam":42, ...}}
JSON SUPPORT
success - status true/false
message - optional main response message
messages - all gathered messages in the JApplication
data

“Sometimes you have to lose
yourself writing another
component view to discover
module possibilities”
- Paulo Coelho, The Official Joomla! Book

MODULES
- best replacement for component views
- available on error and offline pages
- module position is not necessary to render module

class AmazingScript extends JApplicationCli {
public function doExecute(){
// code to execute
}
}
// cli/amazingScript.php
JApplicationCli::getInstance('AmazingScript')->execute();
CLI

CLI - USAGE
- cron jobs
- logs cleanup
- collect statistics
- reporting
- 3rd party API data integration
- error reporting
- data import/export

- joomla! is more than just a CMS or framework; its
community,
- with meetings happening every year in many local
events like joomla! Days,
- it’s big, but not too big - big enough to ensure that
answers are always just a click away
COMMUNITY

7 reasons why developers should love Joomla!

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