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Document return-value substitution in EntityManager::transactional()

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Darien Hager 2015-07-15 18:58:18 -07:00
parent 6bf6db3533
commit 8503c1247f
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docs/en/reference/transactions-and-concurrency.rst
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@ -98,6 +98,13 @@ functionally equivalent to the previously shown code looks as follows:
$em->persist($user); $em->persist($user);
}); });
.. warning::
For historical reasons, ``EntityManager#transactional($func)`` will return
``false`` whenever the return value of ``$func`` is loosely false.
Some examples of this include ``array()``, ``"0"``, ``""``, ``0``, and
``null``.
The difference between ``Connection#transactional($func)`` and The difference between ``Connection#transactional($func)`` and
``EntityManager#transactional($func)`` is that the latter ``EntityManager#transactional($func)`` is that the latter
abstraction flushes the ``EntityManager`` prior to transaction abstraction flushes the ``EntityManager`` prior to transaction