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<?php
/**
 * @version    CVS: 1.0.0
 * @package    com_quix
 * @author     ThemeXpert <info@themexpert.com>
 * @copyright  Copyright (C) 2015. All rights reserved.
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

// No direct access.
defined('_JEXEC') or die;

use Joomla\Registry\Registry;

/**
 * Quix model.
 *
 * @since  1.6
 */
class QuixModelElement extends JModelAdmin
{
	/**
	 * @var      string    The prefix to use with controller messages.
	 * @since    1.6
	 */
	protected $item;
	protected $text_prefix = 'COM_QUIX';

/**
	 * Returns a reference to the a Table object, always creating it.
	 *
	 * @param   string  $type    The table type to instantiate
	 * @param   string  $prefix  A prefix for the table class name. Optional.
	 * @param   array   $config  Configuration array for model. Optional.
	 *
	 * @return    JTable    A database object
	 *
	 * @since    1.6
	 */
	public function getTable($type = 'Element', $prefix = 'QuixTable', $config = array())
	{
		return JTable::getInstance($type, $prefix, $config);
	}

/**
	 * Method to get the record form.
	 *
	 * @param   array    $data      An optional array of data for the form to interogate.
	 * @param   boolean  $loadData  True if the form is to load its own data (default case), false if not.
	 *
	 * @return  JForm  A JForm object on success, false on failure
	 *
	 * @since    1.6
	 */
	public function getForm($data = array(), $loadData = true)
	{
		// Initialise variables.
		$app = JFactory::getApplication();
		// Get the form.
		$form = $this->loadForm(
			'com_quix.element', 'page',
			array('control' => 'jform',
				'load_data' => $loadData
			)
		);

if (empty($form))
		{
			return false;
		}
		return $form;
	}

/**
	 * Override preprocessForm to load custom form from templates
	 *
	 * @param   JForm   $form   A JForm object.
	 * @param   mixed   $data   The data expected for the form.
	 * @param   string  $group  The name of the plugin group to import (defaults to "content").
	 *
	 * @return  void
	 *
	 * @throws	Exception if there is an error in the form event.
	 *
	 * @since   1.6
	 */
	protected function preprocessForm(JForm $form, $data, $group = 'content')
	{
		JForm::addFormPath(JPATH_COMPONENT_ADMINISTRATOR . '/models/forms');
		$form->loadFile('element', false);
		parent::preprocessForm($form, $data, $group);
	}

/**
	 * Method to get the data that should be injected in the form.
	 *
	 * @return   mixed  The data for the form.
	 *
	 * @since    1.6
	 */
	protected function loadFormData()
	{
		// Check the session for previously entered form data.
		$data = JFactory::getApplication()->getUserState('com_quix.edit.element.data', array());

if (empty($data))
		{
			if ($this->item === null)
			{
				$this->item = $this->getItem();
			}

$data = $this->item;

//Support for multiple or not foreign key field: access
			$array = array();
			foreach((array)$data->access as $value):
				if(!is_array($value)):
					$array[] = $value;
				endif;
			endforeach;
			$data->access = $array;
		}

return $data;
	}

/**
	 * Method to get a single record.
	 *
	 * @param   integer  $pk  The id of the primary key.
	 *
	 * @return  mixed    Object on success, false on failure.
	 *
	 * @since    1.6
	 */
	public function getItem($pk = null)
	{
		if ($item = parent::getItem($pk))
		{
			// Convert the metadata field to an array.
			$registry = new Registry;
			$registry->loadString($item->params);
			$item->params = $registry->toArray();
		}

return $item;
	}

/**
	 * Prepare and sanitise the table prior to saving.
	 *
	 * @param   JTable  $table  Table Object
	 *
	 * @return void
	 *
	 * @since    1.6
	 */
	protected function prepareTable($table)
	{
		jimport('joomla.filter.output');

if (empty($table->id))
		{
			// Set ordering to the last item if not set
			if (@$table->ordering === '')
			{
				$db = JFactory::getDbo();
				$db->setQuery('SELECT MAX(ordering) FROM #__quix_elements');
				$max             = $db->loadResult();
				$table->ordering = $max + 1;
			}
		}
	}

/**
	 * Method to save the form data.
	 *
	 * @param   array  $data  The form data.
	 *
	 * @return  boolean  True on success.
	 *
	 * @since   1.6
	 */
	public function save($data)
	{
		$input = JFactory::getApplication()->input;
		$filter  = JFilterInput::getInstance();

if (isset($data['params']))
		{
			$registry = new Registry;
			$registry->loadArray($data['params']);
			$data['params'] = (string) $registry;
		}
		
		// Clear relavent cache
		$this->cleanCache();
		
		if(parent::save($data))
		{
			$this->getState('element.id');

return true;
		}

return false;

}

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