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Filename : UCMType.php
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<?php
/**
 * Joomla! Content Management System
 *
 * @copyright  (C) 2013 Open Source Matters, Inc. <https://www.joomla.org>
 * @license    GNU General Public License version 2 or later; see LICENSE.txt
 */

namespace Joomla\CMS\UCM;

\defined('JPATH_PLATFORM') or die;

use Joomla\Application\AbstractApplication;
use Joomla\CMS\Factory;
use Joomla\Database\DatabaseDriver;
use Joomla\Database\ParameterType;

/**
 * UCM Class for handling content types
 *
 * @property-read  string  $core_content_id
 * @property-read  string  $core_type_alias
 * @property-read  string  $core_title
 * @property-read  string  $core_alias
 * @property-read  string  $core_body
 * @property-read  string  $core_state
 *
 * @property-read  string  $core_checked_out_time
 * @property-read  string  $core_checked_out_user_id
 * @property-read  string  $core_access
 * @property-read  string  $core_params
 * @property-read  string  $core_featured
 * @property-read  string  $core_metadata
 * @property-read  string  $core_created_user_id
 * @property-read  string  $core_created_by_alias
 * @property-read  string  $core_created_time
 * @property-read  string  $core_modified_user_id
 * @property-read  string  $core_modified_time
 * @property-read  string  $core_language
 * @property-read  string  $core_publish_up
 * @property-read  string  $core_publish_down
 * @property-read  string  $core_content_item_id
 * @property-read  string  $asset_id
 * @property-read  string  $core_images
 * @property-read  string  $core_urls
 * @property-read  string  $core_hits
 * @property-read  string  $core_version
 * @property-read  string  $core_ordering
 * @property-read  string  $core_metakey
 * @property-read  string  $core_metadesc
 * @property-read  string  $core_catid
 * @property-read  string  $core_typeid
 *
 * @since  3.1
 */
class UCMType implements UCM
{
	/**
	 * The UCM Type
	 *
	 * @var    UCMType
	 * @since  3.1
	 */
	public $type;

	/**
	 * The Database object
	 *
	 * @var    DatabaseDriver
	 * @since  3.1
	 */
	protected $db;

	/**
	 * The alias for the content type
	 *
	 * @var	   string
	 * @since  3.1
	 */
	protected $alias;

	/**
	 * Class constructor
	 *
	 * @param   string               $alias        The alias for the item
	 * @param   DatabaseDriver       $database     The database object
	 * @param   AbstractApplication  $application  The application object
	 *
	 * @since   3.1
	 */
	public function __construct($alias = null, DatabaseDriver $database = null, AbstractApplication $application = null)
	{
		$this->db = $database ?: Factory::getDbo();
		$app      = $application ?: Factory::getApplication();

		// Make the best guess we can in the absence of information.
		$this->alias = $alias ?: $app->input->get('option') . '.' . $app->input->get('view');
		$this->type  = $this->getTypeByAlias($this->alias);
	}

	/**
	 * Get the Content Type
	 *
	 * @param   integer  $pk  The primary key of the alias type
	 *
	 * @return  object  The UCM Type data
	 *
	 * @since   3.1
	 */
	public function getType($pk = null)
	{
		if (!$pk)
		{
			return $this->getTypeByAlias($this->alias);
		}

		$query = $this->db->getQuery(true)
			->select($this->db->quoteName('ct') . '.*')
			->from($this->db->quoteName('#__content_types', 'ct'))
			->where($this->db->quoteName('ct.type_id') . ' = :pk')
			->bind(':pk', $pk, ParameterType::INTEGER);

		$this->db->setQuery($query);

		return $this->db->loadObject();
	}

	/**
	 * Get the Content Type from the alias
	 *
	 * @param   string  $typeAlias  The alias for the type
	 *
	 * @return  object  The UCM Type data
	 *
	 * @since   3.2
	 */
	public function getTypeByAlias($typeAlias = null)
	{
		$query = $this->db->getQuery(true)
			->select($this->db->quoteName('ct') . '.*')
			->from($this->db->quoteName('#__content_types', 'ct'))
			->where($this->db->quoteName('ct.type_alias') . ' = :alias')
			->bind(':alias', $typeAlias);

		$this->db->setQuery($query);

		return $this->db->loadObject();
	}

	/**
	 * Get the Content Type from the table class name
	 *
	 * @param   string  $tableName  The table for the type
	 *
	 * @return  mixed  The UCM Type data if found, false if no match is found
	 *
	 * @since   3.2
	 */
	public function getTypeByTable($tableName)
	{
		$query = $this->db->getQuery(true)
			->select($this->db->quoteName('ct') . '.*')
			->from($this->db->quoteName('#__content_types', 'ct'));

		$this->db->setQuery($query);
		$types = $this->db->loadObjectList();

		foreach ($types as $type)
		{
			$tableFromType = json_decode($type->table);
			$tableNameFromType = $tableFromType->special->prefix . $tableFromType->special->type;

			if ($tableNameFromType === $tableName)
			{
				return $type;
			}
		}

		return false;
	}

	/**
	 * Retrieves the UCM type ID
	 *
	 * @param   string  $alias  The string of the type alias
	 *
	 * @return  mixed  The ID of the requested type or false if type is not found
	 *
	 * @since   3.1
	 */
	public function getTypeId($alias = null)
	{
		if (!$alias)
		{
			$alias = $this->alias;
		}

		$query = $this->db->getQuery(true)
			->select($this->db->quoteName('ct.type_id'))
			->from($this->db->quoteName('#__content_types', 'ct'))
			->where($this->db->quoteName('ct.type_alias') . ' = :alias')
			->bind(':alias', $alias);

		$this->db->setQuery($query);

		$id = $this->db->loadResult();

		if (!$id)
		{
			return false;
		}

		return $id;
	}

	/**
	 * Method to expand the field mapping
	 *
	 * @param   boolean  $assoc  True to return an associative array.
	 *
	 * @return  mixed  Array or object with field mappings. Defaults to object.
	 *
	 * @since   3.2
	 */
	public function fieldmapExpand($assoc = false)
	{
		if (!empty($this->type->field_mappings))
		{
			return $this->fieldmap = json_decode($this->type->field_mappings, $assoc);
		}
		else
		{
			return false;
		}
	}

	/**
	 * Magic method to get the name of the field mapped to a ucm field (core_something).
	 *
	 * @param   string  $ucmField  The name of the field in JTableCorecontent
	 *
	 * @return  string  The name mapped to the $ucmField for a given content type
	 *
	 * @since   3.2
	 */
	public function __get($ucmField)
	{
		if (!isset($this->fieldmap))
		{
			$this->fieldmapExpand(false);
		}

		return $this->fieldmap->common->$ucmField ?? null;
	}
}