27 lines
740 B
ReStructuredText
27 lines
740 B
ReStructuredText
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Lazy Collections
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================
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To create a lazy collection you can extend the
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``Doctrine\Common\Collections\AbstractLazyCollection`` class
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and define the ``doInitialize`` method. Here is an example where
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we lazily query the database for a collection of user records:
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.. code-block:: php
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use Doctrine\DBAL\Connection;
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class UsersLazyCollection extends AbstractLazyCollection
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{
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/** @var Connection */
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private $connection;
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public function __construct(Connection $connection)
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{
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$this->connection = $connection;
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}
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protected function doInitialize() : void
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{
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$this->collection = $this->connection->fetchAll('SELECT * FROM users');
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}
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}
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