JOOMLA IMPORTANT

Redirecting
+++++++++++++
$app = JFactory::getApplication();

$app->enqueueMessage('Redirect to another page was successful',

'success');
$app->redirect(JRoute::_('index.php'));



2.
$app = JFactory::getApplication();
$link = 'http://www.minitek.gr/';
$msg = 'You have been redirected to Minitek.gr';
$app->redirect($link, $msg, $msgType='message');
============================================================
Check User Logged in
++++++++++++++++++++++

$user = JFactory::getUser();        // Get the user object
$app  = JFactory::getApplication(); // Get the application

if ($user->id != 0)
{
    // you are logged in
}
else
{
    // Redirect the user
    $app->redirect(JRoute::_('index.php?

option=com_users&view=login'));
}


method 2
++++++++++++++++++

$user = JFactory::getUser();

		return (!$user->get('guest')) ? 'logout' : 'login';

====================================================================

Joomla accessing configuration
++++++++++++++++++++++++++++++++++++++
$config = JFactory::getConfig();
$fromname = $config->get('fromname');

=======================================================
accessing database
$db = JFactory::getDbo();


$query = "SELECT * FROM `#__database_table_name` as whatever WHERE id = '$queryfid' ";
                        $this->database->setQuery($query);
			$result = $this->database->loadObject();
   if (!$result)



TO INSERT

$Query = "INSERT INTO `#__database_table_name` (field1,field2) VALUES ('".$value1."','".$value2."')";
							 $db->setQuery($Query);
							 $db->query();
setQuery does not execute Query, to execute, after that write $db->query();
=========================================================

get current url joomla with query string
++++++++++++++++++++++++++++++++++++++++++++++++++++
$uri = JUri::getInstance();
echo $uri->toString();




============================================================
JOOMLA SESSION
+++++++++++++++++++++++++
https://docs.joomla.org/How_to_access_session_variables_set_by_an_external_script


==================================================================
USING COMPOSER INSIDE JOOMLA WITHOUT USING CORE JOOMLA COMPOSER

https://joomla.stackexchange.com/questions/16815/how-to-add-a-composer-package-without-modifying-the-core-composer-json-file

====================================================================
LOAD JOOMLA FROM EXTERNAL SCRIPT

https://www.minitek.gr/blog/how-to-load-the-joomla-framework-inside-an-external-file

define( '_JEXEC', 1 );
define( '_VALID_MOS', 1 );
define( 'JPATH_BASE', realpath(dirname(__FILE__)));
define( 'DS', DIRECTORY_SEPARATOR );
require_once ( JPATH_BASE .DS.'includes'.DS.'defines.php' );
require_once ( JPATH_BASE .DS.'includes'.DS.'framework.php' );
$mainframe = JFactory::getApplication('site');
$mainframe->initialise();
++++++++++++++++++++++++++++++++++
======================================================================
Access plugin params anywhere in joomla
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Get plugin 'my_plugin' of plugin type 'my_plugin_type'
$plugin = JPluginHelper::getPlugin('my_plugin_type', 'my_plugin');

// Check if plugin is enabled
if ($plugin)
{
    // Get plugin params
    $pluginParams = new JRegistry($plugin->params);

    $param1 = $pluginParams->get('param1');
    $param2 = $pluginParams->get('param2');
    $param3 = $pluginParams->get('param3');
}
==========================================================
CALL MODULE INSIDE COMPONENT
++++++++++++++++++++++++++++++++++++++++++++++++++++
 jimport('joomla.application.module.helper'); //check its called or not
$modules = JModuleHelper::getModules('header');  // header is module position
    foreach($modules as $module)
    {
    echo JModuleHelper::renderModule($module);
    }

also templateDetails.xml for position

===============================================================
Ajax in Joomla module
https://stackoverflow.com/questions/13446333/putting-ajax-in-a-joomla-module