| 1 | <?php |
| 2 | /* |
| 3 | +--------------------------------------------------------------------+ |
| 4 | | CiviCRM version 4.7 | |
| 5 | +--------------------------------------------------------------------+ |
| 6 | | Copyright CiviCRM LLC (c) 2004-2016 | |
| 7 | +--------------------------------------------------------------------+ |
| 8 | | This file is a part of CiviCRM. | |
| 9 | | | |
| 10 | | CiviCRM is free software; you can copy, modify, and distribute it | |
| 11 | | under the terms of the GNU Affero General Public License | |
| 12 | | Version 3, 19 November 2007 and the CiviCRM Licensing Exception. | |
| 13 | | | |
| 14 | | CiviCRM is distributed in the hope that it will be useful, but | |
| 15 | | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 | | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | |
| 17 | | See the GNU Affero General Public License for more details. | |
| 18 | | | |
| 19 | | You should have received a copy of the GNU Affero General Public | |
| 20 | | License and the CiviCRM Licensing Exception along | |
| 21 | | with this program; if not, contact CiviCRM LLC | |
| 22 | | at info[AT]civicrm[DOT]org. If you have questions about the | |
| 23 | | GNU Affero General Public License or the licensing of CiviCRM, | |
| 24 | | see the CiviCRM license FAQ at http://civicrm.org/licensing | |
| 25 | +--------------------------------------------------------------------+ |
| 26 | */ |
| 27 | |
| 28 | namespace Civi\Core; |
| 29 | |
| 30 | use Civi\Core\Event\SystemInstallEvent; |
| 31 | |
| 32 | /** |
| 33 | * Class InstallationCanary |
| 34 | * @package Civi\Core |
| 35 | */ |
| 36 | class InstallationCanary { |
| 37 | |
| 38 | /** |
| 39 | * Check whether the install has run before. |
| 40 | * |
| 41 | * Circa v4.7.betaX, we introduced a new mechanism for tracking installation |
| 42 | * and firing a post-install event. However, it's fairly difficult to test the |
| 43 | * edge-cases directly, so this canary should fire if there are any problems |
| 44 | * in the design/implementation of the installation-tracker. |
| 45 | * |
| 46 | * This should not exist. It should be removed in a future version. |
| 47 | * |
| 48 | * @param \Civi\Core\Event\SystemInstallEvent $event |
| 49 | * @throws \CRM_Core_Exception |
| 50 | */ |
| 51 | public static function check(SystemInstallEvent $event) { |
| 52 | if (\CRM_Core_DAO::checkTableExists('civicrm_install_canary')) { |
| 53 | throw new \CRM_Core_Exception("Found installation canary. This suggests that something went wrong with tracking installation process. Please post to forum or JIRA."); |
| 54 | } |
| 55 | \Civi::log()->info('Creating canary table'); |
| 56 | \CRM_Core_DAO::executeQuery('CREATE TABLE civicrm_install_canary (id int(10) unsigned NOT NULL)'); |
| 57 | } |
| 58 | |
| 59 | } |