27 lines
738 B
ReStructuredText
27 lines
738 B
ReStructuredText
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Derived Collections
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===================
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You can create custom collection classes by extending the
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``Doctrine\Common\Collections\ArrayCollection`` class. If the
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``__construct`` semantics are different from the default ``ArrayCollection``
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you can override the ``createFrom`` method:
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.. code-block:: php
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final class DerivedArrayCollection extends ArrayCollection
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{
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/** @var \stdClass */
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private $foo;
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public function __construct(\stdClass $foo, array $elements = [])
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{
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$this->foo = $foo;
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parent::__construct($elements);
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}
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protected function createFrom(array $elements) : self
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{
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return new static($this->foo, $elements);
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}
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}
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