function filter_perms_form_user_admin_permissions_alter in Filter Permissions 7

Implements hook_form_FORM_ID_alter().

File

./filter_perms.module, line 26

Code

function filter_perms_form_user_admin_permissions_alter(&$form, $form_state, $form_id) {
  drupal_add_css(drupal_get_path('module', 'filter_perms') . '/filter_perms.css');
  if (isset($_SESSION['filter_perm_roles']) && count($_SESSION['filter_perm_roles'])) {
    $roles = $_SESSION['filter_perm_roles'];

    // If '--All Roles' is selected, get all roles.
    if (isset($roles['-1'])) {
      $user_roles = user_roles();
      foreach ($user_roles as $user_role_key => $user_role) {
        $roles[$user_role_key] = $user_role_key;
      }
    }
  }
  else {

    // Until the session variable is set, don't display any roles.
    $roles = array();
  }
  $cp_field_perms = array();
  if (isset($_SESSION['filter_perm_modules']) && count($_SESSION['filter_perm_modules'])) {
    $modules = $_SESSION['filter_perm_modules'];

    // if '--All Modules' is selected, get all modules.
    if (isset($modules['-1'])) {
      foreach (module_list(FALSE, FALSE, TRUE) as $module) {
        if (module_invoke($module, 'permission')) {
          $modules[$module] = $module;
        }
      }
    }
  }
  else {

    // Until the session variable is set, don't display any modules.
    $modules = array();
  }
  $perms = array();
  foreach ($form['permission'] as $perm_key => $perm) {
    if (is_numeric($perm_key)) {
      $perm_module = $perm['#id'];
      $perm_id = $perm_key;
    }
    else {
      if (in_array($perm_module, $modules)) {
        $perms[$perm_module][$perm_key] = $perm_id;
      }
    }
  }
  $old_perms = $form['permission'];
  $old_checkboxes = $form['checkboxes'];
  $old_roles = $form['role_names'];
  $form['permission'] = array();
  $form['checkboxes'] = array();
  $form['role_names'] = array();

  // If either a role or module is not selected, don't display checkboxes.
  if (count($roles) && count($modules)) {
    $new_roles = array();
    foreach ($old_roles as $rid => $role) {
      if (in_array($rid, $roles)) {
        $new_roles[$rid] = $role;
      }
    }
    $perm_index = 0;
    foreach ($perms as $perm_key => $perm) {
      foreach ($perms[$perm_key] as $perm_name => $perm_value) {
        $form['permission'][$perm_index] = $old_perms[$perm_value];
        $form['permission'][$perm_name] = $old_perms[$perm_name];
        foreach ($new_roles as $rid => $role) {
          $form['checkboxes'][$rid]['#type'] = 'checkboxes';
          $form['checkboxes'][$rid]['#options'][$perm_name] = '';
          $form['checkboxes'][$rid]['#default_value'] = $old_checkboxes[$rid]['#default_value'];
        }
      }
      $perm_index++;
    }
    $form['role_names'] = $new_roles;
    foreach ($new_roles as $new_rid => $new_role) {
      $form['role_names']['#value'][$new_rid] = $new_role['#markup'];
    }
    $form['role_names']['#type'] = 'value';

    //No longer need to add a custom submit handler as core appears to handle partial form submits.
  }
  else {

    // Put some basic info in if filters are not selected.
    $form['permission']['-1'] = array(
      '#markup' => 'Filter Selection',
      '#id' => 'empty',
    );
    $form['permission']['empty'] = array(
      '#type' => 'item',
      '#markup' => 'Please select at least one value from both the Roles and Modules select boxes above and then click the "Filter Permissions" button',
    );

    // Initialize an empty array to avoid warnings in theme function.
    $form['role_names']['#value'] = array();

    // Remove the Save permissions button when no permissions are present.
    unset($form['actions']['submit']);
  }
}