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ArticleModel.php
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ArticleModel.php
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<?php
namespace AppBundle\Model;
use Symfony\Component\DependencyInjection\ContainerInterface;
use JMS\DiExtraBundle\Annotation\Service;
/**
* ブログ記事に関わるビジネスロジッククラス。
* フレームワークの機能で、プロセスごとにシングルトンになる。
*
* @package AppBundle\Model
* @Service("article_model")
*/
class ArticleModel
{
/**
* DIコンテナ.
*
* @var ContainerInterface
*/
public $container;
/**
* @var bool
*/
public $counterIsIncremented = false;
/**
* @param $id
* @return array
*/
public function find($id)
{
$article = $this->getDb()->fetchAll(<<<SQL
SELECT * FROM article WHERE id = $id;
SQL
);
// fetchAll は1行でも配列で返してくるので注意
$article = reset($article);
$this->incrementCounter($article);
return $article;
}
/**
* @param array $article
* @return bool
* @throws \Doctrine\DBAL\DBALException
*/
public function incrementCounter(array $article)
{
if (!$this->counterIsIncremented) {
$currentCounter = $article['counter'];
$id = $article['id'];
$currentCounter++;
$this->getDb()->executeQuery(<<<SQL
UPDATE article SET counter = $currentCounter WHERE id = $id;
SQL
);
$this->counterIsIncremented = true;
return true;
}
return false;
}
/**
* @param $name
* @param $description
* @return bool
* @throws \Doctrine\DBAL\DBALException
*/
public function register($name, $description)
{
$this->getDb()->executeQuery(<<<SQL
INSERT INTO article (name, description, counter) VALUES ($name, $description, 0);
SQL
);
return true;
}
/**
* @return \Doctrine\DBAL\Connection
*/
public function getDb()
{
// フレームワーク(DIコンテナ)の機能で、PDOを返す。
return $this->container->get('doctrine.dbal.connection');
}
}