<?php
namespace FSProVendor\WPDesk\Persistence\Decorator;
use FSProVendor\WPDesk\Persistence\DeferredPersistentContainer;
use FSProVendor\WPDesk\Persistence\ElementNotExistsException;
use FSProVendor\WPDesk\Persistence\FallbackFromGetTrait;
use FSProVendor\WPDesk\Persistence\PersistentContainer;
/**
* You can use this class to delay write access to any PersistenceContainer.
*
* @package WPDesk\Persistence
*/
class DelayPersistentContainer implements \FSProVendor\WPDesk\Persistence\DeferredPersistentContainer
{
use FallbackFromGetTrait;
/**
* Container with deferred access.
*
* @var PersistentContainer
*/
protected $container;
/**
* Data that has been set but not yet saved to $container.
*
* @var array
*/
protected $internal_data = [];
/**
* The keys that was changed in using internal data.
*
* @var bool[]
*/
protected $changed = [];
public function __construct(\FSProVendor\WPDesk\Persistence\PersistentContainer $container)
{
$this->container = $container;
}
public function get($id)
{
if (isset($this->changed[$id]) && $this->changed[$id]) {
if (isset($this->internal_data[$id])) {
return $this->internal_data[$id];
}
throw new \FSProVendor\WPDesk\Persistence\ElementNotExistsException(\sprintf('Element %s not exists!', $id));
}
return $this->container->get($id);
}
public function has($id) : bool
{
if (isset($this->changed[$id]) && $this->changed[$id]) {
return isset($this->internal_data[$id]);
}
return $this->container->has($id);
}
public function save()
{
foreach ($this->changed as $key => $value) {
$this->container->set($key, $this->internal_data[$key]);
}
$this->reset();
}
public function is_changed() : bool
{
return !empty($this->changed);
}
public function reset()
{
$this->changed = [];
}
public function set(string $id, $value)
{
$this->changed[$id] = \true;
$this->internal_data[$id] = $value;
}
public function delete(string $id)
{
$this->changed[$id] = \true;
unset($this->internal_data[$id]);
}
}