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Doctrine DBALの基本的な使い方

Last updated at Posted at 2015-02-11

公式ドキュメントを参考に基本的な使い方をまとめる。

接続

$conn = \Doctrine\DBAL\DriverManager::getConnection([
    'path'   => './dbal-demo.sqlite',
    'driver' => 'pdo_sqlite',
]);

各DBごとにパラメータが違う。詳しくはドキュメントを参照:
http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/configuration.html#connection-details

SQL実行

参考:
http://docs.doctrine-project.org/projects/doctrine-dbal/en/latest/reference/data-retrieval-and-manipulation.html

直SQL

基本

$statement = $conn->executeQuery('SELECT * FROM users WHERE id = ?', [1]);
$user = $statement->fetch();
/*
[
    "id"   => "1",
    "name" => "bob"
]
*/

第三引数でパラメータの型を「配列」と指定してあげれば、IN句に配列を渡すことが出来る。
(他のメソッドでもだいたい最後の引数で指定できるみたい)

$conn->fetchAll(
    'select * from users WHERE id IN (?)',
    [[1, 2]],
    [\Doctrine\DBAL\Connection::PARAM_INT_ARRAY]
);

update

$count = $conn->executeUpdate('UPDATE users SET name = ? WHERE id = ?', ['smith', 1]);
echo $count; // 1

insert

$conn->insert('users', ['id' => 2, 'name' => 'mike']);

update

$conn->update('users', ['name' => 'smith'], ['id' => 1]);

delete

$conn->delete('users', ['id' => 1]);

select

複数

$conn->fetchAll('SELECT * FROM users');
/*
[
    [
        "id"   => "1",
        "name" => "bob"
    ],
    [
        "id"   => "2",
        "name" => "mike"
    ]
]
*/

一件

$user = $conn->fetchAssoc('SELECT * FROM users WHERE id = ?', [1]);
/*
[
    "id"   => "1",
    "name" => "bob"
]
*/

カラム指定

$name = $conn->fetchColumn('SELECT name FROM users WHERE id = ?', [1]);
echo $name; // "bob"

クエリログ

DB接続時にConfiguration経由でSQLLoggerのインスタンスを渡す。

$logger = new \Doctrine\DBAL\Logging\DebugStack();
$config = new \Doctrine\DBAL\Configuration();
$config->setSQLLogger($logger);
$conn = \Doctrine\DBAL\DriverManager::getConnection([
    'path'   => './dbal-demo.sqlite',
    'driver' => 'pdo_sqlite',
], $config);

もしくはあとから設定。

$logger = new \Doctrine\DBAL\Logging\DebugStack();
$conn->getConfiguration()->setSQLLogger($logger);

クエリを実行したあと、queriesプロパティにログがたまっている。

$conn->fetchAll(
    'select * from users WHERE id IN (?)',
    [[1, 2]],
    [\Doctrine\DBAL\Connection::PARAM_INT_ARRAY]
);

$conn->getConfiguration()->getSQLLogger()->queries;
/*
[
  1 => [
    "sql"         => "select * from users WHERE id IN (?)",
    "params"      => [
      [
        1,
        2
      ]
    ],
    "types"       => [
      101
    ],
    "executionMS" => 0.0022280216217041
  ]
]
*/

まとめ

  • "便利なPDO"として使えそう
  • ややこしい機能は省略した
    • 型のバインディング
    • スキーマ管理
    • シャーディング
    • など
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