<?php
namespace WP_Statistics\Traits;
/**
* Trait to handle caching logic.
* @doc https://github.com/wp-statistics/wp-statistics/wiki/ObjectCacheTrait.md
*/
trait ObjectCacheTrait
{
/**
* Cached data to prevent duplicate queries.
*
* @var array
*/
private $cache = [];
/**
* Sets a value in the cache.
*
* @param string $key The cache key.
* @param mixed $value The value to cache.
*
* @return void
*/
public function setCache($key, $value)
{
$this->cache[$key] = $value;
}
/**
* Gets a value from the cache.
*
* @param string $key The cache key.
*
* @return mixed|null The cached value or null if not set.
*/
public function getCache($key, $default = null)
{
return $this->isCacheSet($key) ? $this->cache[$key] : $default;
}
/**
* Checks if a cache key is set.
*
* @param string $key The cache key.
*
* @return bool True if the cache key is set, false otherwise.
*/
public function isCacheSet($key)
{
return isset($this->cache[$key]);
}
/**
* Resets the cache.
*
* @return void
*/
public function resetCache()
{
$this->cache = [];
}
/**
* Fetches data from the model with caching.
*
* @param string $key Cache key.
* @param callable $callback Function to fetch data if not cached.
*
* @return mixed Cached or fetched data.
*/
public function getCachedData($key, callable $callback)
{
if (!$this->isCacheSet($key)) {
$this->setCache($key, $callback());
}
return $this->getCache($key);
}
}