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<?php /** MicroDbDriver */ |
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namespace Micro\Cache\Drivers; |
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use Micro\Base\Exception; |
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use Micro\Db\ConnectionInjector; |
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use Micro\Db\Drivers\IDriver; |
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use Micro\Mvc\Models\Query; |
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/** |
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* Class DbDriver |
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* |
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* @author Oleg Lunegov <[email protected]> |
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* @link https://github.com/linpax/microphp-framework |
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* @copyright Copyright (c) 2013 Oleg Lunegov |
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* @license https://github.com/linpax/microphp-framework/blob/master/LICENSE |
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* @package Micro |
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* @subpackage Cache\Driver |
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* @version 1.0 |
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* @since 1.0 |
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*/ |
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class DbDriver extends CacheDriver |
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{ |
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/** @var IDriver $driver DB driver */ |
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protected $driver; |
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/** @var string $table table name */ |
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protected $table; |
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/** |
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* Constructor |
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* |
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* @access public |
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* |
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* @param array $config config array |
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* |
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* @result void |
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* @throws Exception |
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*/ |
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public function __construct(array $config = []) |
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{ |
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parent::__construct($config); |
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$this->table = 'cache'; |
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if (!empty($config['table'])) { |
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$this->table = $config['table']; |
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unset($config['table']); |
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} |
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$this->driver = (new ConnectionInjector)->getDriver(); |
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$this->driver->createTable($this->table, [ |
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'`name` VARCHAR(127) NOT NULL', |
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'`value` TEXT NULL', |
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'`duration` INT(11) NOT NULL', |
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'`date_create` INT(11) NOT NULL', |
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'UNIQUE(`name`)' |
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], ''); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function check() |
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{ |
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return ($this->driver instanceof IDriver) && $this->driver->tableExists($this->table) ?: false; |
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} |
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/** |
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* @inheritdoc |
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* @throws \Micro\Base\Exception |
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*/ |
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public function get($name) |
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{ |
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/** @var array $element */ |
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if ($element = $this->getElement($name)) { |
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return array_key_exists('value', $element) ? $element['value'] : null; |
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} |
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return null; |
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} |
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/** |
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* @inheritdoc |
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* @throws \Micro\Base\Exception |
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* @param string $name |
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*/ |
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protected function getElement($name) |
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{ |
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$query = new Query($this->driver); |
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$query->table = $this->table; |
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$query->addWhere('`name`=:name'); |
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$query->params = ['name' => $name]; |
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$query->limit = 1; |
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$query->single = true; |
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return $query->run(\PDO::FETCH_ASSOC); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function set($name, $value) |
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{ |
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return $this->driver->update($this->table, ['`name`="'.$value.'"'], 'name="'.$name.'"'); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function delete($name) |
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{ |
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return $this->driver->delete($this->table, 'name=:name', ['name' => $name]); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function clean() |
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{ |
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$this->driver->clearTable($this->table); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function info() |
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{ |
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return $this->driver->count(null, $this->table); |
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} |
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/** |
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* @inheritdoc |
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* @throws \Micro\Base\Exception |
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*/ |
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public function getMeta($id) |
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{ |
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return $this->getElement($id); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function increment($name, $offset = 1) |
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{ |
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return $this->driver->update($this->table, ['value' => 'value+'.$offset], 'name="'.$name.'"'); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function decrement($name, $offset = 1) |
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{ |
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return $this->driver->update($this->table, ['value' => 'value-'.$offset], 'name="'.$name.'"'); |
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} |
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} |
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linpax /
microphp-framework
