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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Validator\Constraints;
use Symfony\Component\Validator\Exception\OutOfBoundsException;
/**
* A sequence of validation groups.
*
* When validating a group sequence, each group will only be validated if all
* of the previous groups in the sequence succeeded. For example:
*
* $validator->validate($address, null, new GroupSequence(array('Basic', 'Strict')));
*
* In the first step, all constraints that belong to the group "Basic" will be
* validated. If none of the constraints fail, the validator will then validate
* the constraints in group "Strict". This is useful, for example, if "Strict"
* contains expensive checks that require a lot of CPU or slow, external
* services. You usually don't want to run expensive checks if any of the cheap
* checks fail.
*
* When adding metadata to a class, you can override the "Default" group of
* that class with a group sequence:
*
* /**
* * @GroupSequence({"Address", "Strict"})
* *\/
* class Address
* {
* // ...
* }
*
* Whenever you validate that object in the "Default" group, the group sequence
* will be validated:
*
* $validator->validate($address);
*
* If you want to execute the constraints of the "Default" group for a class
* with an overridden default group, pass the class name as group name instead:
*
* $validator->validate($address, null, "Address")
*
* @Annotation
* @Target({"CLASS", "ANNOTATION"})
*
* @author Bernhard Schussek <bschussek@gmail.com>
*
* Implementing \ArrayAccess, \IteratorAggregate and \Countable is @deprecated since 2.5 and will be removed in 3.0.
*/
class GroupSequence implements \ArrayAccess, \IteratorAggregate, \Countable
{
/**
* The groups in the sequence.
*
* @var string[]|GroupSequence[]
*/
public $groups;
/**
* The group in which cascaded objects are validated when validating
* this sequence.
*
* By default, cascaded objects are validated in each of the groups of
* the sequence.
*
* If a class has a group sequence attached, that sequence replaces the
* "Default" group. When validating that class in the "Default" group, the
* group sequence is used instead, but still the "Default" group should be
* cascaded to other objects.
*
* @var string|GroupSequence
*/
public $cascadedGroup;
/**
* Creates a new group sequence.
*
* @param string[] $groups The groups in the sequence
*/
public function __construct(array $groups)
{
// Support for Doctrine annotations
$this->groups = isset($groups['value']) ? $groups['value'] : $groups;
}
/**
* Returns an iterator for this group.
*
* Implemented for backwards compatibility with Symfony < 2.5.
*
* @return \Traversable The iterator
*
* @see \IteratorAggregate::getIterator()
* @deprecated since version 2.5, to be removed in 3.0.
*/
public function getIterator()
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
return new \ArrayIterator($this->groups);
}
/**
* Returns whether the given offset exists in the sequence.
*
* Implemented for backwards compatibility with Symfony < 2.5.
*
* @param int $offset The offset
*
* @return bool Whether the offset exists
*
* @deprecated since version 2.5, to be removed in 3.0.
*/
public function offsetExists($offset)
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
return isset($this->groups[$offset]);
}
/**
* Returns the group at the given offset.
*
* Implemented for backwards compatibility with Symfony < 2.5.
*
* @param int $offset The offset
*
* @return string The group a the given offset
*
* @throws OutOfBoundsException If the object does not exist
*
* @deprecated since version 2.5, to be removed in 3.0.
*/
public function offsetGet($offset)
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
if (!isset($this->groups[$offset])) {
throw new OutOfBoundsException(sprintf('The offset "%s" does not exist.', $offset));
}
return $this->groups[$offset];
}
/**
* Sets the group at the given offset.
*
* Implemented for backwards compatibility with Symfony < 2.5.
*
* @param int $offset The offset
* @param string $value The group name
*
* @deprecated since version 2.5, to be removed in 3.0.
*/
public function offsetSet($offset, $value)
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
if (null !== $offset) {
$this->groups[$offset] = $value;
return;
}
$this->groups[] = $value;
}
/**
* Removes the group at the given offset.
*
* Implemented for backwards compatibility with Symfony < 2.5.
*
* @param int $offset The offset
*
* @deprecated since version 2.5, to be removed in 3.0.
*/
public function offsetUnset($offset)
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
unset($this->groups[$offset]);
}
/**
* Returns the number of groups in the sequence.
*
* Implemented for backwards compatibility with Symfony < 2.5.
*
* @return int The number of groups
*
* @deprecated since version 2.5, to be removed in 3.0.
*/
public function count()
{
@trigger_error('The '.__METHOD__.' method is deprecated since Symfony 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
return \count($this->groups);
}
}