connection; $sql = "SELECT id FROM extra_field WHERE variable = 'video_url'"; $result = $connection->executeQuery($sql)->fetchAll(); if (empty($result)) { $this->addSql("INSERT INTO extra_field (extra_field_type, field_type, variable, display_text, visible, changeable, created_at) VALUES (2, 19, 'video_url', 'VideoUrl', 1, 1, NOW())"); } } /** * @param Schema $schema */ public function down(Schema $schema) { $this->addSql("DELETE FROM extra_field WHERE variable = 'video_url' AND extra_field_type = 2 AND field_type = 19"); } }