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<?php
/**
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
namespace DebugKit\Model\Table;
use Cake\Core\App;
use Cake\Database\Connection;
use Cake\Datasource\FixtureInterface;
use PDOException;
/**
* A set of methods for building a database table when it is missing.
*
* Because the debugkit doesn't come with a pre-built SQLite database,
* we'll need to make it as we need it.
*
* This trait lets us dump fixture schema into a given database at runtime.
*/
trait LazyTableTrait
{
/**
* Ensures the tables for the given fixtures exist in the schema.
*
* If the tables do not exist, they will be created on the current model's connection.
*
* @param array $fixtures The fixture names to check and/or insert.
* @return void
* @throws \RuntimeException When fixtures are missing/unknown/fail.
*/
public function ensureTables(array $fixtures)
{
/* @var Connection $connection */
$connection = $this->getConnection();
$schema = $connection->getSchemaCollection();
try {
$existing = $schema->listTables();
} catch (PDOException $e) {
// Handle errors when SQLite blows up if the schema has changed.
if (strpos($e->getMessage(), 'schema has changed') !== false) {
$existing = $schema->listTables();
} else {
throw $e;
}
}
foreach ($fixtures as $name) {
$class = App::className($name, 'Test/Fixture', 'Fixture');
if ($class === false) {
throw new \RuntimeException("Unknown fixture '$name'.");
}
/* @var FixtureInterface $fixture */
$fixture = new $class($connection->configName());
if (in_array($fixture->table, $existing)) {
continue;
}
$fixture->create($connection);
}
}
}