1 files changed, 123 insertions, 0 deletions

diff --git a/app/DoctrineMigrations/Version20161001072726.php b/app/DoctrineMigrations/Version20161001072726.php
new file mode 100644
index 00000000..f6930778
--- /dev/null
+++ b/app/DoctrineMigrations/Version20161001072726.php
@@ -0,0 +1,123 @@
+<?php
+
+namespace Application\Migrations;
+
+use Doctrine\DBAL\Migrations\AbstractMigration;
+use Doctrine\DBAL\Schema\Schema;
+use Symfony\Component\DependencyInjection\ContainerAwareInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+class Version20161001072726 extends AbstractMigration implements ContainerAwareInterface
+{
+    /**
+     * @var ContainerInterface
+     */
+    private $container;
+
+    public function setContainer(ContainerInterface $container = null)
+    {
+        $this->container = $container;
+    }
+
+    private function getTable($tableName)
+    {
+        return $this->container->getParameter('database_table_prefix').$tableName;
+    }
+
+    /**
+     * @param Schema $schema
+     */
+    public function up(Schema $schema)
+    {
+        $this->skipIf($this->connection->getDatabasePlatform()->getName() == 'sqlite', 'Migration can only be executed safely on \'mysql\' or \'postgresql\'.');
+
+        // remove all FK from entry_tag
+        switch ($this->connection->getDatabasePlatform()->getName()) {
+            case 'mysql':
+                $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()."'"
+                );
+                $query->execute();
+
+                foreach ($query->fetchAll() as $fk) {
+                    $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' DROP FOREIGN KEY '.$fk['CONSTRAINT_NAME']);
+                }
+                break;
+
+            case 'postgresql':
+                // http://dba.stackexchange.com/questions/36979/retrieving-all-pk-and-fk
+                $query = $this->connection->query("
+                    SELECT conrelid::regclass AS table_from
+                          ,conname
+                          ,pg_get_constraintdef(c.oid)
+                    FROM   pg_constraint c
+                    JOIN   pg_namespace n ON n.oid = c.connamespace
+                    WHERE  contype = 'f'
+                    AND    conrelid::regclass::text = '".$this->getTable('entry_tag')."'
+                    AND    n.nspname = 'public';"
+                );
+                $query->execute();
+
+                foreach ($query->fetchAll() as $fk) {
+                    $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' DROP CONSTRAINT '.$fk['conname']);
+                }
+                break;
+        }
+
+        $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' ADD CONSTRAINT FK_entry_tag_entry FOREIGN KEY (entry_id) REFERENCES '.$this->getTable('entry').' (id) ON DELETE CASCADE');
+        $this->addSql('ALTER TABLE '.$this->getTable('entry_tag').' ADD CONSTRAINT FK_entry_tag_tag FOREIGN KEY (tag_id) REFERENCES '.$this->getTable('tag').' (id) ON DELETE CASCADE');
+
+        // remove entry FK from annotation
+
+        switch ($this->connection->getDatabasePlatform()->getName()) {
+            case 'mysql':
+                $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()."'"
+                );
+                $query->execute();
+
+                foreach ($query->fetchAll() as $fk) {
+                    $this->addSql('ALTER TABLE '.$this->getTable('annotation').' DROP FOREIGN KEY '.$fk['CONSTRAINT_NAME']);
+                }
+                break;
+
+            case 'postgresql':
+                // http://dba.stackexchange.com/questions/36979/retrieving-all-pk-and-fk
+                $query = $this->connection->query("
+                    SELECT conrelid::regclass AS table_from
+                          ,conname
+                          ,pg_get_constraintdef(c.oid)
+                    FROM   pg_constraint c
+                    JOIN   pg_namespace n ON n.oid = c.connamespace
+                    WHERE  contype = 'f'
+                    AND    conrelid::regclass::text = '".$this->getTable('annotation')."'
+                    AND    n.nspname = 'public'
+                    AND    pg_get_constraintdef(c.oid) LIKE '%entry_id%';"
+                );
+                $query->execute();
+
+                foreach ($query->fetchAll() as $fk) {
+                    $this->addSql('ALTER TABLE '.$this->getTable('annotation').' DROP CONSTRAINT '.$fk['conname']);
+                }
+                break;
+        }
+
+        $this->addSql('ALTER TABLE '.$this->getTable('annotation').' ADD CONSTRAINT FK_annotation_entry FOREIGN KEY (entry_id) REFERENCES '.$this->getTable('entry').' (id) ON DELETE CASCADE');
+    }
+
+    /**
+     * @param Schema $schema
+     */
+    public function down(Schema $schema)
+    {
+        throw new SkipMigrationException('Too complex ...');
+    }
+}