diff options
Diffstat (limited to 'application/migrations/012_add_constraints.php')
| -rw-r--r-- | application/migrations/012_add_constraints.php | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/application/migrations/012_add_constraints.php b/application/migrations/012_add_constraints.php new file mode 100644 index 000000000..a2569d54d --- /dev/null +++ b/application/migrations/012_add_constraints.php @@ -0,0 +1,36 @@ +<?php +defined('BASEPATH') OR exit('No direct script access allowed'); + +class Migration_add_constraints extends CI_Migration { + + public function up() + { + $prefix = $this->db->dbprefix; + + if ($this->db->dbdriver == 'postgre') { + $this->db->query('ALTER TABLE "'.$prefix.'users" ALTER COLUMN "referrer" TYPE integer'); + $this->db->query('ALTER TABLE "'.$prefix.'users" ALTER COLUMN "referrer" DROP NOT NULL'); + $this->db->query('CREATE INDEX "'.$prefix.'users_referrer_idx" ON "'.$prefix.'users" ("referrer")'); + $this->db->query('UPDATE "'.$prefix.'users" SET "referrer" = NULL where "referrer" = 0'); + $this->db->query(' + ALTER TABLE "'.$prefix.'users" + ADD CONSTRAINT "'.$prefix.'referrer_user_fkey" FOREIGN KEY ("referrer") + REFERENCES "'.$prefix.'users"("id") ON DELETE RESTRICT ON UPDATE RESTRICT + '); + + } else { + + $this->db->query('ALTER TABLE `'.$prefix.'users` ADD INDEX(`referrer`);'); + $this->db->query('ALTER TABLE `'.$prefix.'users` CHANGE `referrer` `referrer` + INT(8) UNSIGNED NULL;'); + $this->db->query('UPDATE `'.$prefix.'users` SET `referrer` = NULL where `referrer` = 0;'); + $this->db->query('ALTER TABLE `'.$prefix.'users` ADD FOREIGN KEY (`referrer`) + REFERENCES `'.$prefix.'users`(`id`) ON DELETE RESTRICT ON UPDATE RESTRICT;'); + } + } + + public function down() + { + throw new \exceptions\ApiException("migration/downgrade-not-supported", "downgrade not supported"); + } +} |