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6 | Copyright CiviCRM LLC (c) 2004-2019 |
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8 | This file is a part of CiviCRM. |
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30 use Civi\Core\Event\SystemInstallEvent
;
33 * Class InstallationCanary
36 class InstallationCanary
{
39 * Check whether the install has run before.
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.
46 * This should not exist. It should be removed in a future version.
48 * @param \Civi\Core\Event\SystemInstallEvent $event
49 * @throws \CRM_Core_Exception
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.");
55 \Civi
::log()->info('Creating canary table');
56 \CRM_Core_DAO
::executeQuery('CREATE TABLE civicrm_install_canary (id int(10) unsigned NOT NULL) ENGINE=InnoDB');