function update_upgrade_modules_to_enable

Finds out which modules need to be enabled.

Return value

array: An array keyed by the machine names of module names needed to be enabled, whose values are arrays of the modules that depend on them.

File

core/includes/update.inc, line 347

Backdrop database update API.

Code

function update_upgrade_modules_to_enable() {
  // Get list of enabled modules.
  $result = db_query("SELECT name FROM {system} WHERE type = :type AND status = :status", array(':type' => 'module', ':status' => 1));

  // Get list of modules to be enabled.
  $enabled_modules = array_keys($result->fetchAllAssoc('name'));

  // Do not include any core module required by the Standard or Minimal
  // installations. Any needed modules from those will be taken care of later.
  $enabled_modules = array_diff($enabled_modules, array('standard', 'minimal'));

  // Get information about all modules available.
  $files = system_rebuild_module_data();

  $modules_to_enable = array();
  foreach ($enabled_modules as $enabled_module) {
    if (!empty($files[$enabled_module]->requires)) {
      $required_modules = array_keys($files[$enabled_module]->requires);
      // Add required modules that are not enabled.
      $modules_not_enabled = array_diff($required_modules, $enabled_modules);
      foreach ($modules_not_enabled as $module_not_enabled) {
        $modules_to_enable[$module_not_enabled][] = $files[$enabled_module]->info['name'];
      }
    }
  }
  return $modules_to_enable;
}