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<?php
defined('BASEPATH') OR exit('No direct script access allowed');
class Migration_update_session_table extends CI_Migration {
public function up()
{
$prefix = $this->db->dbprefix;
if ($this->db->dbdriver == 'postgre') {
$this->db->query('
ALTER TABLE "'.$prefix.'ci_sessions"
DROP COLUMN "user_agent";
');
$this->db->query('
ALTER TABLE "'.$prefix.'ci_sessions"
RENAME COLUMN "session_id" TO "id";
');
$this->db->query('
ALTER TABLE "'.$prefix.'ci_sessions"
RENAME COLUMN "last_activity" TO "timestamp";
');
$this->db->query('
ALTER TABLE "'.$prefix.'ci_sessions"
RENAME COLUMN "user_data" TO "data";
');
$this->db->query('
ALTER TABLE ci_sessions ALTER COLUMN id SET DATA TYPE varchar(128);
');
} else {
$this->db->query('
ALTER TABLE `'.$prefix.'ci_sessions`
DROP `user_agent`,
CHANGE `session_id` `id` VARCHAR(128) CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL,
CHANGE `last_activity` `timestamp` INT(10) UNSIGNED NOT NULL DEFAULT 0,
CHANGE `user_data` `data` BLOB NOT NULL;
');
}
}
public function down()
{
throw new \exceptions\ApiException("migration/downgrade-not-supported", "downgrade not supported");
}
}
|
