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1 | <?php |
2 | /* | |
3 | +--------------------------------------------------------------------+ | |
4 | | CiviCRM version 4.7 | | |
5 | +--------------------------------------------------------------------+ | |
6 | | Copyright CiviCRM LLC (c) 2004-2015 | | |
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 | } |