146 lines
2.4 KiB
PHP
146 lines
2.4 KiB
PHP
<?php namespace Filebase;
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class Cache
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{
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/**
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* $database
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*
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* \Filebase\Database
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*/
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protected $database;
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/**
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* $cache_database
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*
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* \Filebase\Database
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*/
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protected $cache_database;
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/**
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* $key
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*
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*/
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protected $key;
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/**
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* __construct()
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*
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*/
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public function __construct(Database $database)
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{
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$this->database = $database;
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$this->cache_database = new \Filebase\Database([
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'dir' => $this->database->getConfig()->dir.'/__cache',
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'cache' => false,
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'pretty' => false
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]);
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}
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/**
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* setKey()
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*
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* This key is used to identify the cache
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* and know how to call the cache again
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*
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*/
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public function setKey($key)
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{
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$this->key = md5($key);
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}
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/**
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* getKey()
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*
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*/
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public function getKey()
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{
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return $this->key;
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}
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/**
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* flush()
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*
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*/
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public function flush()
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{
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$this->cache_database->flush(true);
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}
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/**
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* expired()
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*
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* @param $time (date format)
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* @return bool (true/false)
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*/
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public function expired($time)
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{
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if ( (strtotime($time)+$this->database->getConfig()->cache_expires) > time() )
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{
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return false;
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}
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return true;
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}
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/**
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* getDocuments()
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*
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*/
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public function getDocuments($documents)
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{
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$d = [];
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foreach($documents as $document)
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{
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$d[] = $this->database->get($document)->setFromCache(true);
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}
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return $d;
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}
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/**
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* get()
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*
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*/
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public function get()
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{
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if (!$this->getKey())
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{
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throw new \Exception('You must supply a cache key using setKey to get cache data.');
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}
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$cache_doc = $this->cache_database->get( $this->getKey() );
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if (!$cache_doc->toArray())
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{
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return false;
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}
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if ( $this->expired( $cache_doc->updatedAt() ) )
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{
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return false;
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}
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return $this->getDocuments($cache_doc->toArray());
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}
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/**
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* store()
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*
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*/
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public function store($data)
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{
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if (!$this->getKey())
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{
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throw new \Exception('You must supply a cache key using setKey to store cache data.');
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}
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return $this->cache_database->get( $this->getKey() )->set($data)->save();
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}
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}
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