Namespaces

• ICanBoogie
  • Session

Classes

• Flash
• NormalizeOptions
• Segment
• SegmentCollection

Interfaces

• CookieParams

Traits

• FlashTrait
• SegmentTrait

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<?php

/*
 * This file is part of the ICanBoogie package.
 *
 * (c) Olivier Laviale <olivier.laviale@gmail.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace ICanBoogie\Session;

use ICanBoogie\OffsetNotWritable;
use ICanBoogie\Session;
use ICanBoogie\SessionSegment;

/**
 * A collection of session segments.
 */
class SegmentCollection implements \ArrayAccess, \IteratorAggregate
{
    /**
     * @var Session
     */
    private $session;

    /**
     * @var SessionSegment[]
     */
    private $segments = [];

    /**
     * @param Session $session
     */
    public function __construct(Session $session)
    {
        $this->session = $session;
    }

    /**
     * @inheritdoc
     */
    public function getIterator()
    {
        return new \ArrayIterator($this->segments);
    }

    /**
     * @inheritdoc
     */
    public function offsetExists($segment_name)
    {
        return isset($this->session[$segment_name]);
    }

    /**
     * @inheritdoc
     */
    public function offsetGet($segment_name)
    {
        $segment = &$this->segments[$segment_name];

        return $segment ?: $segment = new Segment($segment_name, $this->session);
    }

    /**
     * @inheritdoc
     *
     * @throws OffsetNotWritable in attempt to write on a segment.
     */
    public function offsetSet($segment_name, $value)
    {
        throw new OffsetNotWritable("Segment offsets are not writable (`$segment_name`)`");
    }

    /**
     * @inheritdoc
     */
    public function offsetUnset($segment_name)
    {
        unset($this->segments[$segment_name]);
        unset($this->session[$segment_name]);
    }
}