<?php

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/*

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* This file is part of the ManageWP Worker plugin.

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*

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* (c) ManageWP LLC <contact@managewp.com>

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*

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* For the full copyright and license information, please view the LICENSE

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* file that was distributed with this source code.

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*/

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abstract class MWP_Action_IncrementalBackup_AbstractTablesAction extends MWP_Action_IncrementalBackup_Abstract

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{

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const METHOD_MYSQLDUMP = 'mysqldump';

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const METHOD_PHPDUMPER = 'phpdumper';

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/**

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* @param MWP_IncrementalBackup_Database_DumperInterface $dumper

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* @param array $params

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* @param array $tables

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*

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* @return mixed

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*/

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abstract protected function executeAction(MWP_IncrementalBackup_Database_DumperInterface $dumper, array $tables = array(), array $params = array());

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public function execute(array $params = array())

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{

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$method = $params['method'];

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$tables = $params['tables'];

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if (isset($params['options']) && is_array($params['options'])) {

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$options = $params['options'];

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} else {

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$options = array();

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}

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$dumper = $this->createDumper($method, $options);

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return $this->executeAction($dumper, $tables, $params);

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}

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/**

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* @param array $tables

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*

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* @throws MWP_Worker_Exception

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*/

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protected function assertTablesExist(array $tables)

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{

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$rows = mwp_context()->getDb()->get_results("SHOW TABLES", ARRAY_N);

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foreach ($rows as $row) {

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// $row is always an array with only a single member

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$table = $row[0];

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$index = array_search($table, $tables);

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if ($index !== false) {

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// Remove from $tables - don't worry, $tables has not been passed by reference :)

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array_splice($tables, $index, 1);

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}

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}

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// Tables which have not been found are located in $tables

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if (count($tables)) {

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throw new MWP_Worker_Exception(MWP_Worker_Exception::BACKUP_DATABASE_MISSING_TABLES, "Some tables are missing", array(

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// Return an array of missing tables

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'tables' => $tables,

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));

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}

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}

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/**

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* @param string $method

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*

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* @param array $options

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*

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* @throws MWP_Worker_Exception

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* @return MWP_IncrementalBackup_Database_DumperInterface

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*/

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protected function createDumper($method, array $options = array())

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{

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$dumperOptions = MWP_IncrementalBackup_Database_DumpOptions::createFromArray($options);

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switch ($method) {

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case self::METHOD_MYSQLDUMP:

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$configuration = MWP_IncrementalBackup_Database_Configuration::createFromWordPressContext(mwp_context());

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$dumper = new MWP_IncrementalBackup_Database_MysqlDumpDumper($configuration, $dumperOptions);

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return $dumper;

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case self::METHOD_PHPDUMPER:

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$configuration = MWP_IncrementalBackup_Database_Configuration::createFromWordPressContext(mwp_context());

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$dumper = new MWP_IncrementalBackup_Database_PhpDumper($configuration, mwp_container()->getSystemEnvironment(), $dumperOptions);

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return $dumper;

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default:

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throw new MWP_Worker_Exception(MWP_Worker_Exception::BACKUP_DATABASE_METHOD_NOT_AVAILABLE);

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break;

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}

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}

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}

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