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1<?php
2
3namespace Application\Migrations;
4
5use Doctrine\DBAL\Migrations\AbstractMigration;
6use Doctrine\DBAL\Schema\Schema;
7use Symfony\Component\DependencyInjection\ContainerAwareInterface;
8use Symfony\Component\DependencyInjection\ContainerInterface;
9
10class Version20161001072726 extends AbstractMigration implements ContainerAwareInterface
11{
12 /**
13 * @var ContainerInterface
14 */
15 private $container;
16
17 public function setContainer(ContainerInterface $container = null)
18 {
19 $this->container = $container;
20 }
21
22 private function getTable($tableName)
23 {
24 return $this->container->getParameter('database_table_prefix') . $tableName;
25 }
26
27 /**
28 * @param Schema $schema
29 */
30 public function up(Schema $schema)
31 {
32 $this->skipIf($this->connection->getDatabasePlatform()->getName() == 'sqlite', 'Migration can only be executed safely on \'mysql\' or \'postgresql\'.');
33
34 // remove all FK from entry_tag
35 $query = $this->connection->query("SELECT CONSTRAINT_NAME FROM information_schema.key_column_usage WHERE TABLE_NAME = '".$this->getTable('entry_tag')."' AND CONSTRAINT_NAME LIKE 'FK_%' AND TABLE_SCHEMA = '".$this->connection->getDatabase()."'");
36 $query->execute();
37
38 foreach ($query->fetchAll() as $fk) {
39 $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' DROP FOREIGN KEY '.$fk['CONSTRAINT_NAME']);
40 }
41
42 $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' ADD CONSTRAINT FK_entry_tag_entry FOREIGN KEY (entry_id) REFERENCES '.$this->getTable('entry').' (id) ON DELETE CASCADE');
43 $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' ADD CONSTRAINT FK_entry_tag_tag FOREIGN KEY (tag_id) REFERENCES '.$this->getTable('tag').' (id) ON DELETE CASCADE');
44
45 // remove entry FK from annotation
46 $query = $this->connection->query("SELECT CONSTRAINT_NAME FROM information_schema.key_column_usage WHERE TABLE_NAME = '".$this->getTable('annotation')."' AND CONSTRAINT_NAME LIKE 'FK_%' and COLUMN_NAME = 'entry_id' AND TABLE_SCHEMA = '".$this->connection->getDatabase()."'");
47 $query->execute();
48
49 foreach ($query->fetchAll() as $fk) {
50 $this->addSql('ALTER TABLE '.$this->getTable('annotation').' DROP FOREIGN KEY '.$fk['CONSTRAINT_NAME']);
51 }
52
53 $this->addSql('ALTER TABLE '.$this->getTable('annotation').' ADD CONSTRAINT FK_annotation_entry FOREIGN KEY (entry_id) REFERENCES '.$this->getTable('entry').' (id) ON DELETE CASCADE');
54 }
55
56 /**
57 * @param Schema $schema
58 */
59 public function down(Schema $schema)
60 {
61 throw new SkipMigrationException('Too complex ...');
62 }
63}