<?php

namespace Application\Migrations;

use Doctrine\DBAL\Migrations\AbstractMigration,

    Doctrine\DBAL\Schema\Schema,

	IRI\Bundle\WikiTagBundle\Utils\WikiTagUtils;

/**

 * Migration for WikiTagBundle <= V00.13

 * This migration takes every tag label and search the REAL dbpedia uri associated to this label.

 * Before, the dbpedia uri was manually generated by http://dbpedia.org/resource/ + english_label.

 * Now we get the dbpedia uri by requesting http://LANG_CODE.dbpedia.org/sparql with the current label.

 * 

 */

class Version20140129151724 extends AbstractMigration

{

    public function up(Schema $schema)

    {

        // this up() migration is autogenerated, please modify it to your needs

        $this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");

        // First we get all tags.

        $em = $GLOBALS["kernel"]->getContainer()->get( 'doctrine.orm.entity_manager' );

        $query = $em->createQuery('SELECT t FROM WikiTagBundle:Tag t ORDER BY t.label ASC');//->setMaxResults(40)->setFirstResult(5000);

        $tags = $query->getResult();

        $i = 1;

        foreach($tags as $tag){

        	$l = $tag->getLabel();

        	$uri = WikiTagUtils::getDbpediaUri($tag->getLabel(), [], false);

        	$tag->setDbpediaUri($uri);

        	$em->persist($tag);

        	if( $i % 50 == 0 ){

        		$em->flush();

        		echo "\n    FLUSH";

        	}

        	$i++;

        	echo "\n$i : $l \t\t: $uri";

        }

        $em->flush();

    }

    public function down(Schema $schema)

    {

        // this down() migration is autogenerated, please modify it to your needs

        $this->abortIf($this->connection->getDatabasePlatform()->getName() != "mysql");

    }

}