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 identify update.php and authorize.php runs.

Identifies update.php and authorize.php runs, avoiding unwanted operations such as css/js preprocessing and translation, and solves some theming issues. The flag is checked in other places in Drupal code (not just authorize.php).

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/authorize.php, line 45

Administrative script for running authorized file operations.

Code

const MAINTENANCE_MODE = 'update';