constant MAINTENANCE_MODE in Drupal 8

Same name in this branch

1. 8 core/authorize.php \MAINTENANCE_MODE
2. 8 core/install.php \MAINTENANCE_MODE

Same name and namespace in other branches

1. 6 update.php \MAINTENANCE_MODE
2. 6 install.php \MAINTENANCE_MODE
3. 7 update.php \MAINTENANCE_MODE
4. 7 authorize.php \MAINTENANCE_MODE
5. 7 install.php \MAINTENANCE_MODE
6. 9 core/authorize.php \MAINTENANCE_MODE
7. 9 core/install.php \MAINTENANCE_MODE

Global flag to indicate the site is in installation mode.

The constant is defined using define() instead of const so that PHP versions prior to 5.3 can display proper PHP requirements instead of causing a fatal error.

5 uses of MAINTENANCE_MODE

hook_cache_flush in core/core.api.php

Flush all persistent and static caches.

StatusReport::preRenderGroupRequirements in core/lib/Drupal/Core/Render/Element/StatusReport.php

#pre_render callback to group requirements.

StatusReportPage::preRenderCounters in core/modules/system/src/Element/StatusReportPage.php

#pre_render callback to create counter elements.

user_role_permissions in core/modules/user/user.module

Determine the permissions for one or more roles.

_drupal_maintenance_theme in core/includes/theme.maintenance.inc

Sets up the theming system for maintenance page.

File

core/install.php, line 22

Initiates a browser-based installation of Drupal.

Code

define('MAINTENANCE_MODE', 'install');