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1. drupal
   1. drupal6
   2. drupal7

Process result from node administration filter form.

Code

modules/node/node.admin.inc, line 309

<?php
function node_filter_form_submit($form, &$form_state) {
  $filters = node_filters();
  switch ($form_state['values']['op']) {
    case t('Filter'):
    case t('Refine'):
      if (isset($form_state['values']['filter'])) {
        $filter = $form_state['values']['filter'];

        // Flatten the options array to accommodate hierarchical/nested options.
        $flat_options = form_options_flatten($filters[$filter]['options']);

        if (isset($flat_options[$form_state['values'][$filter]])) {
          $_SESSION['node_overview_filter'][] = array($filter, $form_state['values'][$filter]);
        }
      }
      break;
    case t('Undo'):
      array_pop($_SESSION['node_overview_filter']);
      break;
    case t('Reset'):
      $_SESSION['node_overview_filter'] = array();
      break;
  }
}
?>