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<?php
/**
* @package FOF
* @copyright Copyright (c)2010-2021 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU General Public License version 2, or later
*/
namespace FOF30\Model\DataModel\Behaviour;
defined('_JEXEC') || die;
use Exception;
use FOF30\Event\Observable;
use FOF30\Event\Observer;
use FOF30\Model\DataModel;
use Joomla\CMS\Helper\TagsHelper;
use stdClass;
/**
* FOF model behavior class to add Joomla! Tags support
*
* @since 2.1
*/
class Tags extends Observer
{
/** @var TagsHelper */
protected $tagsHelper;
public function __construct(Observable &$subject)
{
parent::__construct($subject);
$this->tagsHelper = new TagsHelper();
}
/**
* This event runs after unpublishing a record in a model
*
* @param DataModel &$model The model which calls this event
* @param stdClass & $dataObject The data to bind to the form
*
* @return void
*/
public function onBeforeCreate(&$model, &$dataObject)
{
$tagField = $model->getBehaviorParam('tagFieldName', 'tags');
unset($dataObject->$tagField);
}
/**
* This event runs after unpublishing a record in a model
*
* @param DataModel &$model The model which calls this event
* @param stdClass & $dataObject The data to bind to the form
*
* @return void
*/
public function onBeforeUpdate(&$model, &$dataObject)
{
$tagField = $model->getBehaviorParam('tagFieldName', 'tags');
unset($dataObject->$tagField);
}
/**
* The event which runs after binding data to the table
*
* @param DataModel &$model The model which calls this event
*
* @return void
*
* @throws Exception Error message if failed to store tags
*/
public function onAfterSave(&$model)
{
$tagField = $model->getBehaviorParam('tagFieldName', 'tags');
// Avoid to update on other method (e.g. publish, ...)
if (!in_array($model->getContainer()->input->getCmd('task'), ['apply', 'save', 'savenew']))
{
return;
}
$oldTags = $this->tagsHelper->getTagIds($model->getId(), $model->getContentType());
$newTags = $model->$tagField ? implode(',', $model->$tagField) : null;
// If no changes, we stop here
if ($oldTags == $newTags)
{
return;
}
// Check if the content type exists, and create it if it does not
$model->checkContentType();
$this->tagsHelper->typeAlias = $model->getContentType();
if (!$this->tagsHelper->postStoreProcess($model, $model->$tagField))
{
throw new Exception('Error storing tags');
}
}
/**
* The event which runs after deleting a record
*
* @param DataModel &$model The model which calls this event
* @param integer $oid The PK value of the record which was deleted
*
* @return void
*
* @throws Exception Error message if failed to delete tags
*/
public function onAfterDelete(&$model, $oid)
{
$this->tagsHelper->typeAlias = $model->getContentType();
if (!$this->tagsHelper->deleteTagData($model, $oid))
{
throw new Exception('Error deleting Tags');
}
}
/**
* This event runs after unpublishing a record in a model
*
* @param DataModel &$model The model which calls this event
* @param mixed $data An associative array or object to bind to the DataModel instance.
*
* @return void
*/
public function onAfterBind(&$model, &$data)
{
$tagField = $model->getBehaviorParam('tagFieldName', 'tags');
if ($model->$tagField)
{
return;
}
$type = $model->getContentType();
$model->addKnownField($tagField);
$model->$tagField = $this->tagsHelper->getTagIds($model->getId(), $type);
}
/**
* This event runs after publishing a record in a model
*
* @param DataModel &$model The model which calls this event
*
* @return void
*/
public function onAfterPublish(&$model)
{
$model->updateUcmContent();
}
/**
* This event runs after unpublishing a record in a model
*
* @param DataModel &$model The model which calls this event
*
* @return void
*/
public function onAfterUnpublish(&$model)
{
$model->updateUcmContent();
}
}