<?php

/**

 * @file

 * Content administration and module settings UI.

 */

/**

 * Menu callback: confirm rebuilding of permissions.

 *

 * @see node_configure_rebuild_confirm_submit()

 * @see node_menu()

 * @ingroup forms

 */

function node_configure_rebuild_confirm() {

  return confirm_form(array(), t('Are you sure you want to rebuild the permissions on site content?'),

                  'admin/reports/status', t('This action rebuilds all permissions on site content, and may be a lengthy process. This action cannot be undone.'), t('Rebuild permissions'), t('Cancel'));

}

/**

 * Handler for wipe confirmation

 *

 * @see node_configure_rebuild_confirm()

 */

function node_configure_rebuild_confirm_submit($form, &$form_state) {

  node_access_rebuild(TRUE);

  $form_state['redirect'] = 'admin/reports/status';

}

/**

 * Implements hook_node_operations().

 */

function node_node_operations() {

  $operations = array(

    'publish' => array(

      'label' => t('Publish selected content'),

      'callback' => 'node_mass_update',

      'callback arguments' => array('updates' => array('status' => NODE_PUBLISHED)),

    ),

    'unpublish' => array(

      'label' => t('Unpublish selected content'),

      'callback' => 'node_mass_update',

      'callback arguments' => array('updates' => array('status' => NODE_NOT_PUBLISHED)),

    ),

    'promote' => array(

      'label' => t('Promote selected content to front page'),

      'callback' => 'node_mass_update',

      'callback arguments' => array('updates' => array('status' => NODE_PUBLISHED, 'promote' => NODE_PROMOTED)),

    ),

    'demote' => array(

      'label' => t('Demote selected content from front page'),

      'callback' => 'node_mass_update',

      'callback arguments' => array('updates' => array('promote' => NODE_NOT_PROMOTED)),

    ),

    'sticky' => array(

      'label' => t('Make selected content sticky'),

      'callback' => 'node_mass_update',

      'callback arguments' => array('updates' => array('status' => NODE_PUBLISHED, 'sticky' => NODE_STICKY)),

    ),

    'unsticky' => array(

      'label' => t('Make selected content not sticky'),

      'callback' => 'node_mass_update',

      'callback arguments' => array('updates' => array('sticky' => NODE_NOT_STICKY)),

    ),

    'delete' => array(

      'label' => t('Delete selected content'),

      'callback' => NULL,

    ),

  );

  return $operations;

}

/**

 * List node administration filters that can be applied.

 *

 * @return

 *   An associative array of filters.

 */

function node_filters() {

  // Regular filters

  $filters['status'] = array(

    'title' => t('status'),

    'options' => array(

      '[any]' => t('any'),

      'status-1' => t('published'),

      'status-0' => t('not published'),

      'promote-1' => t('promoted'),

      'promote-0' => t('not promoted'),

      'sticky-1' => t('sticky'),

      'sticky-0' => t('not sticky'),

    ),

  );

  // Include translation states if we have this module enabled

  if (module_exists('translation')) {

    $filters['status']['options'] += array(

      'translate-0' => t('Up to date translation'),

      'translate-1' => t('Outdated translation'),

    );

  }

  $filters['type'] = array(

    'title' => t('type'),

    'options' => array(

      '[any]' => t('any'),

    ) + node_type_get_names(),

  );

  // Language filter if there is a list of languages

  if ($languages = module_invoke('locale', 'language_list')) {

    $languages = array(LANGUAGE_NONE => t('Language neutral')) + $languages;

    $filters['language'] = array(

      'title' => t('language'),

      'options' => array(

        '[any]' => t('any'),

      ) + $languages,

    );

  }

  return $filters;

}

/**

 * Applies filters for node administration filters based on session.

 *

 * @param $query

 *   A SelectQuery to which the filters should be applied.

 */

function node_build_filter_query(SelectQueryInterface $query) {

  // Build query

  $filter_data = isset($_SESSION['node_overview_filter']) ? $_SESSION['node_overview_filter'] : array();

  foreach ($filter_data as $index => $filter) {

    list($key, $value) = $filter;

    switch ($key) {

      case 'status':

        // Note: no exploitable hole as $key/$value have already been checked when submitted

        list($key, $value) = explode('-', $value, 2);

      case 'type':

      case 'language':

        $query->condition('n.' . $key, $value);

        break;

    }

  }

}

/**

 * Returns the node administration filters form array to node_admin_content().

 *

 * @see node_admin_nodes()

 * @see node_admin_nodes_submit()

 * @see node_admin_nodes_validate()

 * @see node_filter_form_submit()

 * @see node_multiple_delete_confirm()

 * @see node_multiple_delete_confirm_submit()

 *

 * @ingroup forms

 */

function node_filter_form() {

  $session = isset($_SESSION['node_overview_filter']) ? $_SESSION['node_overview_filter'] : array();

  $filters = node_filters();

  $i = 0;

  $form['filters'] = array(

    '#type' => 'fieldset',

    '#title' => t('Show only items where'),

    '#theme' => 'exposed_filters__node',

  );

  foreach ($session as $filter) {

    list($type, $value) = $filter;

    if ($type == 'term') {

      // Load term name from DB rather than search and parse options array.

      $value = module_invoke('taxonomy', 'term_load', $value);

      $value = $value->name;

    }

    elseif ($type == 'language') {

      $value = $value == LANGUAGE_NONE ? t('Language neutral') : module_invoke('locale', 'language_name', $value);

    }

    else {

      $value = $filters[$type]['options'][$value];

    }

    $t_args = array('%property' => $filters[$type]['title'], '%value' => $value);

    if ($i++) {

      $form['filters']['current'][] = array('#markup' => t('and where %property is %value', $t_args));

    }

    else {

      $form['filters']['current'][] = array('#markup' => t('where %property is %value', $t_args));

    }

    if (in_array($type, array('type', 'language'))) {

      // Remove the option if it is already being filtered on.

      unset($filters[$type]);

    }

  }

  $form['filters']['status'] = array(

    '#type' => 'container',

    '#attributes' => array('class' => array('clearfix')),

    '#prefix' => ($i ? '<div class="additional-filters">' . t('and where') . '</div>' : ''),

  );

  $form['filters']['status']['filters'] = array(

    '#type' => 'container',

    '#attributes' => array('class' => array('filters')),

  );

  foreach ($filters as $key => $filter) {

    $form['filters']['status']['filters'][$key] = array(

      '#type' => 'select',

      '#options' => $filter['options'],

      '#title' => $filter['title'],

      '#default_value' => '[any]',

    );

  }

  $form['filters']['status']['actions'] = array(

    '#type' => 'actions',

    '#attributes' => array('class' => array('container-inline')),

  );

  $form['filters']['status']['actions']['submit'] = array(

    '#type' => 'submit',

    '#value' => count($session) ? t('Refine') : t('Filter'),

  );

  if (count($session)) {

    $form['filters']['status']['actions']['undo'] = array('#type' => 'submit', '#value' => t('Undo'));

    $form['filters']['status']['actions']['reset'] = array('#type' => 'submit', '#value' => t('Reset'));

  }

  drupal_add_js('misc/form.js');

  return $form;

}

/**

 * Form submission handler for node_filter_form().

 *

 * @see node_admin_content()

 * @see node_admin_nodes()

 * @see node_admin_nodes_submit()

 * @see node_admin_nodes_validate()

 * @see node_filter_form()

 * @see node_multiple_delete_confirm()

 * @see node_multiple_delete_confirm_submit()

 */

function node_filter_form_submit($form, &$form_state) {

  $filters = node_filters();

  switch ($form_state['values']['op']) {

    case t('Filter'):

    case t('Refine'):

      // Apply every filter that has a choice selected other than 'any'.

      foreach ($filters as $filter => $options) {

        if (isset($form_state['values'][$filter]) && $form_state['values'][$filter] != '[any]') {

          // Flatten the options array to accommodate hierarchical/nested options.

          $flat_options = form_options_flatten($filters[$filter]['options']);

          // Only accept valid selections offered on the dropdown, block bad input.

          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;

  }

}

/**

 * Make mass update of nodes, changing all nodes in the $nodes array

 * to update them with the field values in $updates.

 *

 * IMPORTANT NOTE: This function is intended to work when called from a form

 * submission handler. Calling it outside of the form submission process may not

 * work correctly.

 *

 * @param array $nodes

 *   Array of node nids to update.

 * @param array $updates

 *   Array of key/value pairs with node field names and the value to update that

 *   field to.

 */

function node_mass_update($nodes, $updates) {

  // We use batch processing to prevent timeout when updating a large number

  // of nodes.

  if (count($nodes) > 10) {

    $batch = array(

      'operations' => array(

        array('_node_mass_update_batch_process', array($nodes, $updates))

      ),

      'finished' => '_node_mass_update_batch_finished',

      'title' => t('Processing'),

      // We use a single multi-pass operation, so the default

      // 'Remaining x of y operations' message will be confusing here.

      'progress_message' => '',

      'error_message' => t('The update has encountered an error.'),

      // The operations do not live in the .module file, so we need to

      // tell the batch engine which file to load before calling them.

      'file' => drupal_get_path('module', 'node') . '/node.admin.inc',

    );

    batch_set($batch);

  }

  else {

    foreach ($nodes as $nid) {

      _node_mass_update_helper($nid, $updates);

    }

    drupal_set_message(t('The update has been performed.'));

  }

}

/**

 * Updates individual nodes when fewer than 10 are queued.

 *

 * @param $nid

 *   ID of node to update.

 * @param $updates

 *   Associative array of updates.

 *

 * @return object

 *   An updated node object.

 *

 * @see node_mass_update()

 */

function _node_mass_update_helper($nid, $updates) {

  $node = node_load($nid, NULL, TRUE);

  // For efficiency manually save the original node before applying any changes.

  $node->original = clone $node;

  foreach ($updates as $name => $value) {

    $node->$name = $value;

  }

  node_save($node);

  return $node;

}

/**

 * Implements callback_batch_operation().

 *

 * Executes a batch operation for node_mass_update().

 *

 * @param array $nodes

 *   An array of node IDs.

 * @param array $updates

 *   Associative array of updates.

 * @param array $context

 *   An array of contextual key/values.

 */

function _node_mass_update_batch_process($nodes, $updates, &$context) {

  if (!isset($context['sandbox']['progress'])) {

    $context['sandbox']['progress'] = 0;

    $context['sandbox']['max'] = count($nodes);

    $context['sandbox']['nodes'] = $nodes;

  }

  // Process nodes by groups of 5.

  $count = min(5, count($context['sandbox']['nodes']));

  for ($i = 1; $i <= $count; $i++) {

    // For each nid, load the node, reset the values, and save it.

    $nid = array_shift($context['sandbox']['nodes']);

    $node = _node_mass_update_helper($nid, $updates);

    // Store result for post-processing in the finished callback.

    $context['results'][] = l($node->title, 'node/' . $node->nid);

    // Update our progress information.

    $context['sandbox']['progress']++;

  }

  // Inform the batch engine that we are not finished,

  // and provide an estimation of the completion level we reached.

  if ($context['sandbox']['progress'] != $context['sandbox']['max']) {

    $context['finished'] = $context['sandbox']['progress'] / $context['sandbox']['max'];

  }

}

/**

 * Implements callback_batch_finished().

 *

 * Reports the status of batch operation for node_mass_update().

 *

 * @param bool $success

 *   A boolean indicating whether the batch mass update operation successfully

 *   concluded.

 * @param int $results

 *   The number of nodes updated via the batch mode process.

 * @param array $operations

 *   An array of function calls (not used in this function).

 */

function _node_mass_update_batch_finished($success, $results, $operations) {

  if ($success) {

    drupal_set_message(t('The update has been performed.'));

  }

  else {

    drupal_set_message(t('An error occurred and processing did not complete.'), 'error');

    $message = format_plural(count($results), '1 item successfully processed:', '@count items successfully processed:');

    $message .= theme('item_list', array('items' => $results));

    drupal_set_message($message);

  }

}

/**

 * Page callback: Form constructor for the content administration form.

 *

 * @see node_admin_nodes()

 * @see node_admin_nodes_submit()

 * @see node_admin_nodes_validate()

 * @see node_filter_form()

 * @see node_filter_form_submit()

 * @see node_menu()

 * @see node_multiple_delete_confirm()

 * @see node_multiple_delete_confirm_submit()

 * @ingroup forms

 */

function node_admin_content($form, $form_state) {

  if (isset($form_state['values']['operation']) && $form_state['values']['operation'] == 'delete') {

    return node_multiple_delete_confirm($form, $form_state, array_filter($form_state['values']['nodes']));

  }

  $form['filter'] = node_filter_form();

  $form['#submit'][] = 'node_filter_form_submit';

  $form['admin'] = node_admin_nodes();

  return $form;