64 lines
1.4 KiB
PHP
64 lines
1.4 KiB
PHP
<?php
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/* For licensing terms, see /license.txt */
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namespace Chamilo\PluginBundle\MigrationMoodle\Extractor;
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use Chamilo\PluginBundle\MigrationMoodle\Interfaces\ExtractorInterface;
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use Doctrine\DBAL\DBALException;
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use Doctrine\DBAL\FetchMode;
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/**
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* Class Extractor.
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*/
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class BaseExtractor implements ExtractorInterface
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{
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/**
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* @var mixed
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*/
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private $query;
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/**
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* Extractor constructor.
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*/
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public function __construct(array $configuration)
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{
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$this->query = $configuration['query'];
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}
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/**
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* @return bool
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*/
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public function filter(array $sourceData)
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{
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return false;
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}
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/**
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* @throws \Exception
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*
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* @return \Generator|iterable
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*/
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public function extract()
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{
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$plugin = \MigrationMoodlePlugin::create();
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try {
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$connection = $plugin->getConnection();
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} catch (DBALException $e) {
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throw new \Exception('Unable to start connection.', 0, $e);
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}
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try {
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$statement = $connection->executeQuery($this->query);
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} catch (DBALException $e) {
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throw new \Exception("Unable to execute query \"{$this->query}\".", 0, $e);
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}
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while ($sourceRow = $statement->fetch(FetchMode::ASSOCIATIVE)) {
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yield $sourceRow;
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}
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$connection->close();
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}
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}
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