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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\Common\Collections;
use ArrayIterator;
use Closure;
use Doctrine\Common\Collections\Expr\ClosureExpressionVisitor;
/**
* An ArrayCollection is a Collection implementation that wraps a regular PHP array.
*
* @since 2.0
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Jonathan Wage <jonwage@gmail.com>
* @author Roman Borschel <roman@code-factory.org>
*/
class ArrayCollection implements Collection, Selectable
{
/**
* An array containing the entries of this collection.
*
* @var array
*/
private $elements;
/**
* Initializes a new ArrayCollection.
*
* @param array $elements
*/
public function __construct(array $elements = array())
{
$this->elements = $elements;
}
/**
* {@inheritDoc}
*/
public function toArray()
{
return $this->elements;
}
/**
* {@inheritDoc}
*/
public function first()
{
return reset($this->elements);
}
/**
* {@inheritDoc}
*/
public function last()
{
return end($this->elements);
}
/**
* {@inheritDoc}
*/
public function key()
{
return key($this->elements);
}
/**
* {@inheritDoc}
*/
public function next()
{
return next($this->elements);
}
/**
* {@inheritDoc}
*/
public function current()
{
return current($this->elements);
}
/**
* {@inheritDoc}
*/
public function remove($key)
{
if ( ! isset($this->elements[$key]) && ! array_key_exists($key, $this->elements)) {
return null;
}
$removed = $this->elements[$key];
unset($this->elements[$key]);
return $removed;
}
/**
* {@inheritDoc}
*/
public function removeElement($element)
{
$key = array_search($element, $this->elements, true);
if ($key === false) {
return false;
}
unset($this->elements[$key]);
return true;
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*/
public function offsetExists($offset)
{
return $this->containsKey($offset);
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*/
public function offsetGet($offset)
{
return $this->get($offset);
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*/
public function offsetSet($offset, $value)
{
if ( ! isset($offset)) {
return $this->add($value);
}
$this->set($offset, $value);
}
/**
* Required by interface ArrayAccess.
*
* {@inheritDoc}
*/
public function offsetUnset($offset)
{
return $this->remove($offset);
}
/**
* {@inheritDoc}
*/
public function containsKey($key)
{
return isset($this->elements[$key]) || array_key_exists($key, $this->elements);
}
/**
* {@inheritDoc}
*/
public function contains($element)
{
return in_array($element, $this->elements, true);
}
/**
* {@inheritDoc}
*/
public function exists(Closure $p)
{
foreach ($this->elements as $key => $element) {
if ($p($key, $element)) {
return true;
}
}
return false;
}
/**
* {@inheritDoc}
*/
public function indexOf($element)
{
return array_search($element, $this->elements, true);
}
/**
* {@inheritDoc}
*/
public function get($key)
{
return isset($this->elements[$key]) ? $this->elements[$key] : null;
}
/**
* {@inheritDoc}
*/
public function getKeys()
{
return array_keys($this->elements);
}
/**
* {@inheritDoc}
*/
public function getValues()
{
return array_values($this->elements);
}
/**
* {@inheritDoc}
*/
public function count()
{
return count($this->elements);
}
/**
* {@inheritDoc}
*/
public function set($key, $value)
{
$this->elements[$key] = $value;
}
/**
* {@inheritDoc}
*/
public function add($value)
{
$this->elements[] = $value;
return true;
}
/**
* {@inheritDoc}
*/
public function isEmpty()
{
return empty($this->elements);
}
/**
* Required by interface IteratorAggregate.
*
* {@inheritDoc}
*/
public function getIterator()
{
return new ArrayIterator($this->elements);
}
/**
* {@inheritDoc}
*/
public function map(Closure $func)
{
return new static(array_map($func, $this->elements));
}
/**
* {@inheritDoc}
*/
public function filter(Closure $p)
{
return new static(array_filter($this->elements, $p));
}
/**
* {@inheritDoc}
*/
public function forAll(Closure $p)
{
foreach ($this->elements as $key => $element) {
if ( ! $p($key, $element)) {
return false;
}
}
return true;
}
/**
* {@inheritDoc}
*/
public function partition(Closure $p)
{
$matches = $noMatches = array();
foreach ($this->elements as $key => $element) {
if ($p($key, $element)) {
$matches[$key] = $element;
} else {
$noMatches[$key] = $element;
}
}
return array(new static($matches), new static($noMatches));
}
/**
* Returns a string representation of this object.
*
* @return string
*/
public function __toString()
{
return __CLASS__ . '@' . spl_object_hash($this);
}
/**
* {@inheritDoc}
*/
public function clear()
{
$this->elements = array();
}
/**
* {@inheritDoc}
*/
public function slice($offset, $length = null)
{
return array_slice($this->elements, $offset, $length, true);
}
/**
* {@inheritDoc}
*/
public function matching(Criteria $criteria)
{
$expr = $criteria->getWhereExpression();
$filtered = $this->elements;
if ($expr) {
$visitor = new ClosureExpressionVisitor();
$filter = $visitor->dispatch($expr);
$filtered = array_filter($filtered, $filter);
}
if ($orderings = $criteria->getOrderings()) {
foreach (array_reverse($orderings) as $field => $ordering) {
$next = ClosureExpressionVisitor::sortByField($field, $ordering == Criteria::DESC ? -1 : 1);
}
uasort($filtered, $next);
}
$offset = $criteria->getFirstResult();
$length = $criteria->getMaxResults();
if ($offset || $length) {
$filtered = array_slice($filtered, (int)$offset, $length);
}
return new static($filtered);
}
}