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Finish first version of filtering api documentation

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Benjamin Eberlei 2012-08-01 22:15:44 +02:00
parent eaeda36bdb
commit 2f72219d6e
1 changed files with 27 additions and 4 deletions
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en/reference/working-with-associations.rst
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@ -627,13 +627,21 @@ large collections.
$group = $entityManager->find('Group', $groupId); $group = $entityManager->find('Group', $groupId);
$userCollection = $group->getUsers(); $userCollection = $group->getUsers();
$expr = $userCollection->getExpressionBuilder();
$criteria = Criteria::create(); $criteria = Criteria::create()
$criteria->where($expr->eq("birthday", "1982-02-17")); ->where(Criteria::expr()->eq("birthday", "1982-02-17"))
->orderBy(array("username" => "ASC"))
->setFirstResult(0)
->setMaxResults(20)
;
$birthdayUsers = $userCollection->matching($criteria); $birthdayUsers = $userCollection->matching($criteria);
.. tip::
You can move the access of slices of collections into dedicated methods of
an entity. For example ``Group#getTodaysBirthdayUsers()``.
The Criteria has a limited matching language that works both on the The Criteria has a limited matching language that works both on the
SQL and on the PHP collection level. This means you can use collection matching SQL and on the PHP collection level. This means you can use collection matching
interchangeably, independent of in-memory or sql-backed collections. interchangeably, independent of in-memory or sql-backed collections.
@ -686,4 +694,19 @@ interchangeably, independent of in-memory or sql-backed collections.
public function getMaxResults(); public function getMaxResults();
} }
You can build expressions through the ExpressionBuilder You can build expressions through the ExpressionBuilder. It has the following
methods:
* ``andX($arg1, $arg2, ...)``
* ``orX($arg1, $arg2, ...)``
* ``eq($field, $value)``
* ``gt($field, $value)``
* ``lt($field, $value)``
* ``lte($field, $value)``
* ``gte($field, $value)``
* ``neq($field, $value)``
* ``isNull($field)``
* ``in($field, array $values)``
* ``notIn($field, array $values)``