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<?php
/**
*
* @package extension
* @copyright (c) 2011 phpBB Group
* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
*
*/
namespace phpbb\extension;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* A base class for extensions without custom enable/disable/purge code.
*
* @package extension
*/
class base implements \phpbb\extension\extension_interface
{
/** @var ContainerInterface */
protected $container;
/** @var \phpbb\extension\finder */
protected $finder;
/** @var \phpbb\db\migrator */
protected $migrator;
/** @var string */
protected $extension_name;
/** @var string */
protected $extension_path;
/**
* Constructor
*
* @param ContainerInterface $container Container object
* @param \phpbb\extension\finder $extension_finder
* @param string $extension_name Name of this extension (from ext.manager)
* @param string $extension_path Relative path to this extension
*/
public function __construct(ContainerInterface $container, \phpbb\extension\finder $extension_finder, \phpbb\db\migrator $migrator, $extension_name, $extension_path)
{
$this->container = $container;
$this->extension_finder = $extension_finder;
$this->migrator = $migrator;
$this->extension_name = $extension_name;
$this->extension_path = $extension_path;
}
/**
* Single enable step that installs any included migrations
*
* @param mixed $old_state State returned by previous call of this method
* @return false Indicates no further steps are required
*/
public function enable_step($old_state)
{
$migrations = $this->get_migration_file_list();
$this->migrator->set_migrations($migrations);
$this->migrator->update();
return !$this->migrator->finished();
}
/**
* Single disable step that does nothing
*
* @param mixed $old_state State returned by previous call of this method
* @return false Indicates no further steps are required
*/
public function disable_step($old_state)
{
return false;
}
/**
* Single purge step that reverts any included and installed migrations
*
* @param mixed $old_state State returned by previous call of this method
* @return false Indicates no further steps are required
*/
public function purge_step($old_state)
{
$migrations = $this->get_migration_file_list();
$this->migrator->set_migrations($migrations);
foreach ($migrations as $migration)
{
while ($this->migrator->migration_state($migration) !== false)
{
$this->migrator->revert($migration);
return true;
}
}
return false;
}
/**
* Get the list of migration files from this extension
*
* @return array
*/
protected function get_migration_file_list()
{
static $migrations = false;
if ($migrations !== false)
{
return $migrations;
}
// Only have the finder search in this extension path directory
$migrations = $this->extension_finder
->extension_directory('/migrations')
->find_from_extension($this->extension_name, $this->extension_path);
$migrations = $this->extension_finder->get_classes_from_files($migrations);
return $migrations;
}
}
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