Joomla essentials

Joomla-essential-snippets.php

<?php
#set variable from view
$this->form->setValue('image_name', null, $this->item->image);

#update dropdown 
$('selector').val('value').trigger("liszt:updated");

#call any model from any component , any location
JModelLegacy::addIncludePath (JPATH_ADMINISTRATOR . DIRECTORY_SEPARATOR . 'components' . DIRECTORY_SEPARATOR . 'com_component' . DIRECTORY_SEPARATOR . 'models');
#add jtable if needs to call core functions
JTable::addIncludePath(JPATH_ADMINISTRATOR.DIRECTORY_SEPARATOR.'components'.DIRECTORY_SEPARATOR.'com_component'.DIRECTORY_SEPARATOR.'tables');
#i.e if class name My_ComponentModelProduct break down it as follows
$model = JModelLegacy::getInstance('Product', 'My_ComponentModel');
 
?> 

Thank you very much. working perfectly.