60 lines
1.8 KiB
Plaintext
60 lines
1.8 KiB
Plaintext
++++ Introduction
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{{Doctrine_Manager}} is the heart of every Doctrine based application. {{Doctrine_Manager}} handles all connections (database connections).
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++++ Opening a new connection
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In order to get your first application started you first need to get an instance of Doctrine_Manager which handles all the connections (database connections). The second thing to do is to open a new connection.
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<code type="php">
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// Doctrine_Manager controls all the connections
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$manager = Doctrine_Manager::getInstance();
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// Doctrine_Connection
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// a script may have multiple open connections
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// (= multiple database connections)
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$dbh = new PDO('dsn','username','password');
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$conn = $manager->openConnection();
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// or if you want to use Doctrine Doctrine_Db and its
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// performance monitoring capabilities
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$dsn = 'schema://username:password@dsn/dbname';
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$dbh = Doctrine_Db::getConnection($dsn);
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$conn = $manager->openConnection();
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</code>
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++++ Managing connections
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Switching between connections in Doctrine is very easy, you just call {{Doctrine_Manager::setCurrentConnection()}} method. You can access the connection by calling {{Doctrine_Manager::getConnection()}} or {{Doctrine_Manager::getCurrentConnection()}} if you only want to get the current connection.
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<code type="php">
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// Doctrine_Manager controls all the connections
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$manager = Doctrine_Manager::getInstance();
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// open first connection
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$conn = $manager->openConnection(new PDO('dsn','username','password'), 'connection 1');
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// open second connection
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$conn2 = $manager->openConnection(new PDO('dsn2','username2','password2'), 'connection 2');
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$manager->getCurrentConnection(); // $conn2
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$manager->setCurrentConnection('connection 1');
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$manager->getCurrentConnection(); // $conn
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// iterating through connections
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foreach($manager as $conn) {
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}
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</code>
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