system_modules_submit

Versions

mediamosa-21

system_modules_submit($form, &$form_state)

Submit callback; handles modules form submission.

Code

modules/system/system.admin.inc, line 1110

<?php
function system_modules_submit($form, &$form_state) {
  include_once DRUPAL_ROOT . '/includes/install.inc';
  $modules = array();
  // If we're not coming from the confirmation form, build the list of modules.
  if (empty($form_state['storage'])) {
    foreach ($form_state['values']['modules'] as $group_name => $group) {
      foreach ($group as $module => $enabled) {
        $modules[$module] = array('group' => $group_name, 'enabled' => $enabled['enable']);
      }
    }
  }
  else {
    // If we are coming from the confirmation form, fetch
    // the modules out of $form_state.
    $modules = $form_state['storage']['modules'];
  }

  // Get a list of all modules, it will be used to find which module requires
  // which.
  $files = system_rebuild_module_data();

  // The modules to be enabled.
  $modules_to_be_enabled = array();
  // The modules to be disabled.
  $disable_modules = array();
  // The modules to be installed.
  $new_modules = array();
  // Modules that need to be switched on because other modules require them.
  $more_modules = array();
  $missing_modules = array();

  // Go through each module, finding out if we should enable, install, or
  // disable it. Also, we find out if there are modules it requires that are
  // not enabled.
  foreach ($modules as $name => $module) {
    // If it's enabled, find out whether to just
    // enable it, or install it.
    if ($module['enabled']) {
      if (drupal_get_installed_schema_version($name) == SCHEMA_UNINSTALLED) {
        $new_modules[$name] = $name;
      }
      elseif (!module_exists($name)) {
        $modules_to_be_enabled[$name] = $name;
      }

      // If we're not coming from a confirmation form, search for modules the
      // new ones require and see whether there are any that additionally
      // need to be switched on.
      if (empty($form_state['storage'])) {
        foreach ($form['modules'][$module['group']][$name]['#requires'] as $requires => $v) {
          if (!isset($files[$requires])) {
            // The required module is missing, mark this module as disabled.
            $missing_modules[$requires]['depends'][] = $name;
            $modules[$name]['enabled'] = FALSE;
          }
          else {
            if (!$modules[$requires]['enabled']) {
              if (!isset($more_modules[$name])) {
                $more_modules[$name]['name'] = $files[$name]->info['name'];
              }
              $more_modules[$name]['requires'][$requires] = $files[$requires]->info['name'];
            }
            $modules[$requires] = array('group' => $files[$requires]->info['package'], 'enabled' => TRUE);
          }
        }
      }
    }
  }
  // A second loop is necessary, otherwise the modules set to be enabled in the
  // previous loop would not be found.
  foreach ($modules as $name => $module) {
    if (module_exists($name) && !$module['enabled']) {
      $disable_modules[$name] = $name;
    }
  }

  if ($more_modules || $missing_modules) {
    // If we need to switch on more modules because other modules require
    // them and they haven't confirmed, don't process the submission yet. Store
    // the form submission data needed later.
    $form_state['storage'] = array(
      'more_modules' => $more_modules,
      'missing_modules' => $missing_modules,
      'modules' => $modules
    );
    $form_state['rebuild'] = TRUE;
    return;
  }

  $old_module_list = module_list();

  // Enable the modules needing enabling.
  if (!empty($modules_to_be_enabled)) {
    $sort = array();
    foreach ($modules_to_be_enabled as $module) {
      $sort[$module] = $files[$module]->sort;
    }
    array_multisort($sort, SORT_DESC, $modules_to_be_enabled);
    module_enable($modules_to_be_enabled, FALSE);
  }
  // Disable the modules that need disabling.
  if (!empty($disable_modules)) {
    $sort = array();
    foreach ($disable_modules as $module) {
      $sort[$module] = $files[$module]->sort;
    }
    array_multisort($sort, SORT_ASC, $disable_modules);
    module_disable($disable_modules, FALSE);
  }

  // Install new modules.
  if (!empty($new_modules)) {
    $sort = array();
    foreach ($new_modules as $key => $module) {
      if (!drupal_check_module($module)) {
        unset($new_modules[$key]);
      }
      $sort[$module] = $files[$module]->sort;
    }
    array_multisort($sort, SORT_DESC, $new_modules);
    module_enable($new_modules, FALSE);
  }

  $current_module_list = module_list(TRUE);
  if ($old_module_list != $current_module_list) {
    drupal_set_message(t('The configuration options have been saved.'));
  }

  // Clear all caches.
  registry_rebuild();
  drupal_theme_rebuild();
  node_types_rebuild();
  menu_rebuild();
  cache_clear_all('schema', 'cache');
  entity_info_cache_clear();
  drupal_clear_css_cache();
  drupal_clear_js_cache();

  $form_state['redirect'] = 'admin/modules';

  // Notify locale module about module changes, so translations can be
  // imported. This might start a batch, and only return to the redirect
  // path after that.
  module_invoke('locale', 'system_update', $new_modules);

  // Synchronize to catch any actions that were added or removed.
  actions_synchronize();

  return;
}
?>