4.7.x system.module system_modules_submit($form_id, $edit)
5.x system.module system_modules_submit($form_id, $form_values)
6.x system.admin.inc system_modules_submit($form, &$form_state)
7.x system.admin.inc system_modules_submit($form, &$form_state)

Submit callback; handles modules form submission.

File

modules/system/system.admin.inc, line 877
Admin page callbacks for the system module.

Code

function system_modules_submit($form, &$form_state) {
  include_once './includes/install.inc';
  $new_modules = array();

  // If we are coming from the confirm form...
  if (!isset($form_state['storage'])) {
    // Merge in disabled active modules since they should be enabled.
    // They don't appear because disabled checkboxes are not submitted
    // by browsers.
    $form_state['values']['status'] = array_merge($form_state['values']['status'], $form_state['values']['disabled_modules']);

    // Check values for dependency that we can't install.
    if ($dependencies = system_module_build_dependencies($form_state['values']['validation_modules'], $form_state['values'])) {
      // These are the modules that depend on existing modules.
      foreach (array_keys($dependencies) as $name) {
        $form_state['values']['status'][$name] = 0;
      }
    }
  }
  else {
    $dependencies = NULL;
  }

  // Update throttle settings, if present
  if (isset($form_state['values']['throttle'])) {
    foreach ($form_state['values']['throttle'] as $key => $choice) {
      db_query("UPDATE {system} SET throttle = %d WHERE type = 'module' and name = '%s'", $choice ? 1 : 0, $key);
    }
  }

  // If there where unmet dependencies and they haven't confirmed don't process
  // the submission yet. Store the form submission data needed later.
  if ($dependencies) {
    if (!isset($form_state['values']['confirm'])) {
      $form_state['storage'] = array($dependencies, $form_state['values']['status']);
      return;
    }
    else {
      $form_state['values']['status'] = array_merge($form_state['values']['status'], $form_storage[1]);
    }
  }
  // If we have no dependencies, or the dependencies are confirmed
  // to be installed, we don't need the temporary storage anymore.
  unset($form_state['storage']);

  $enable_modules = array();
  $disable_modules = array();
  foreach ($form_state['values']['status'] as $key => $choice) {
    if ($choice) {
      if (drupal_get_installed_schema_version($key) == SCHEMA_UNINSTALLED) {
        $new_modules[] = $key;
      }
      else {
        $enable_modules[] = $key;
      }
    }
    else {
      $disable_modules[] = $key;
    }
  }

  $old_module_list = module_list();

  if (!empty($enable_modules)) {
    module_enable($enable_modules);
  }
  if (!empty($disable_modules)) {
    module_disable($disable_modules);
  }

  // Install new modules.
  foreach ($new_modules as $key => $module) {
    if (!drupal_check_module($module)) {
      unset($new_modules[$key]);
    }
  }
  drupal_install_modules($new_modules);

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

  drupal_rebuild_theme_registry();
  node_types_rebuild();
  menu_rebuild();
  cache_clear_all('schema', 'cache');
  drupal_clear_css_cache();
  drupal_clear_js_cache();

  $form_state['redirect'] = 'admin/build/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;
}