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1 | <?php | |
2 | ||
3 | namespace Application\Migrations; | |
4 | ||
5 | use Doctrine\DBAL\Migrations\AbstractMigration; | |
6 | use Doctrine\DBAL\Schema\Schema; | |
7 | use Symfony\Component\DependencyInjection\ContainerAwareInterface; | |
8 | use Symfony\Component\DependencyInjection\ContainerInterface; | |
9 | ||
10 | class 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 | switch ($this->connection->getDatabasePlatform()->getName()) { | |
36 | case 'mysql': | |
37 | $query = $this->connection->query(" | |
38 | SELECT CONSTRAINT_NAME | |
39 | FROM information_schema.key_column_usage | |
40 | WHERE TABLE_NAME = '".$this->getTable('entry_tag')."' AND CONSTRAINT_NAME LIKE 'FK_%' | |
41 | AND TABLE_SCHEMA = '".$this->connection->getDatabase()."'" | |
42 | ); | |
43 | $query->execute(); | |
44 | ||
45 | foreach ($query->fetchAll() as $fk) { | |
46 | $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' DROP FOREIGN KEY '.$fk['CONSTRAINT_NAME']); | |
47 | } | |
48 | break; | |
49 | ||
50 | case 'postgresql': | |
51 | // http://dba.stackexchange.com/questions/36979/retrieving-all-pk-and-fk | |
52 | $query = $this->connection->query(" | |
53 | SELECT conrelid::regclass AS table_from | |
54 | ,conname | |
55 | ,pg_get_constraintdef(c.oid) | |
56 | FROM pg_constraint c | |
57 | JOIN pg_namespace n ON n.oid = c.connamespace | |
58 | WHERE contype = 'f' | |
59 | AND conrelid::regclass::text = '".$this->getTable('entry_tag')."' | |
60 | AND n.nspname = 'public';" | |
61 | ); | |
62 | $query->execute(); | |
63 | ||
64 | foreach ($query->fetchAll() as $fk) { | |
65 | $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' DROP CONSTRAINT '.$fk['conname']); | |
66 | } | |
67 | break; | |
68 | } | |
69 | ||
70 | $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' ADD CONSTRAINT FK_entry_tag_entry FOREIGN KEY (entry_id) REFERENCES '.$this->getTable('entry').' (id) ON DELETE CASCADE'); | |
71 | $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' ADD CONSTRAINT FK_entry_tag_tag FOREIGN KEY (tag_id) REFERENCES '.$this->getTable('tag').' (id) ON DELETE CASCADE'); | |
72 | ||
73 | // remove entry FK from annotation | |
74 | ||
75 | switch ($this->connection->getDatabasePlatform()->getName()) { | |
76 | case 'mysql': | |
77 | $query = $this->connection->query(" | |
78 | SELECT CONSTRAINT_NAME | |
79 | FROM information_schema.key_column_usage | |
80 | WHERE TABLE_NAME = '".$this->getTable('annotation')."' | |
81 | AND CONSTRAINT_NAME LIKE 'FK_%' | |
82 | AND COLUMN_NAME = 'entry_id' | |
83 | AND TABLE_SCHEMA = '".$this->connection->getDatabase()."'" | |
84 | ); | |
85 | $query->execute(); | |
86 | ||
87 | foreach ($query->fetchAll() as $fk) { | |
88 | $this->addSql('ALTER TABLE '.$this->getTable('annotation').' DROP FOREIGN KEY '.$fk['CONSTRAINT_NAME']); | |
89 | } | |
90 | break; | |
91 | ||
92 | case 'postgresql': | |
93 | // http://dba.stackexchange.com/questions/36979/retrieving-all-pk-and-fk | |
94 | $query = $this->connection->query(" | |
95 | SELECT conrelid::regclass AS table_from | |
96 | ,conname | |
97 | ,pg_get_constraintdef(c.oid) | |
98 | FROM pg_constraint c | |
99 | JOIN pg_namespace n ON n.oid = c.connamespace | |
100 | WHERE contype = 'f' | |
101 | AND conrelid::regclass::text = '".$this->getTable('annotation')."' | |
102 | AND n.nspname = 'public' | |
103 | AND pg_get_constraintdef(c.oid) LIKE '%entry_id%';" | |
104 | ); | |
105 | $query->execute(); | |
106 | ||
107 | foreach ($query->fetchAll() as $fk) { | |
108 | $this->addSql('ALTER TABLE '.$this->getTable('annotation').' DROP CONSTRAINT '.$fk['conname']); | |
109 | } | |
110 | break; | |
111 | } | |
112 | ||
113 | $this->addSql('ALTER TABLE '.$this->getTable('annotation').' ADD CONSTRAINT FK_annotation_entry FOREIGN KEY (entry_id) REFERENCES '.$this->getTable('entry').' (id) ON DELETE CASCADE'); | |
114 | } | |
115 | ||
116 | /** | |
117 | * @param Schema $schema | |
118 | */ | |
119 | public function down(Schema $schema) | |
120 | { | |
121 | throw new SkipMigrationException('Too complex ...'); | |
122 | } | |
123 | } |