bulkdelete.admin.inc in Bulk Delete 7

Administrative interface for the bulkdelete module.

File

bulkdelete.admin.inc

<?php

/**
 * @file
 * Administrative interface for the bulkdelete module.
 */

/**
 * Implements hook_form().
 */
function bulkdelete_form($form, &$form_state) {
  $options = array();
  $types = node_type_get_types();
  ksort($types);
  foreach ($types as $key => $values) {
    $count = db_select('node')
      ->condition('type', $key)
      ->countQuery()
      ->execute()
      ->fetchField();
    if ($count > 0) {
      $options[$key] = "{$values->name} ({$key}) ({$count})";
    }
  }
  $form['types'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Content types for deletion'),
    '#options' => $options,
    '#description' => t('All nodes of these types will be deleted using the batch API.'),
  );
  $form['quick'] = array(
    '#type' => 'radios',
    '#title' => t('API'),
    '#default_value' => 0,
    '#options' => array(
      0 => t('Standard'),
      1 => t('Quick'),
    ),
    '#description' => t('Please choose how to delete the nodes.'),
  );
  $form['standard_desc'] = array(
    '#type' => 'item',
    '#markup' => t('<strong>Standard</strong> means we use node_delete() which is slower but reliable. <strong>Warning!</strong> You will get a watchdog message for every node that is deleted.'),
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Delete'),
  );
  return $form;
}

/**
 * Implements hook_form_submit().
 */
function bulkdelete_form_submit($form, &$form_state) {
  $quick = $form_state['values']['quick'];

  // Process the form results.
  $types = array_filter($form_state['values']['types']);
  if (count($types) > 0) {
    $result = db_select('node')
      ->fields('node', array(
      'nid',
    ))
      ->condition('type', $types)
      ->execute()
      ->fetchAll();
    $operations = array();

    // Doing an empty operation at the beginning makes the "initialization"
    // phase go quickly.
    $operations[] = array(
      'trim',
      array(
        '',
      ),
    );
    $count = 1;
    $last_row = count($result);
    foreach ($result as $row) {
      $nids[] = $row->nid;
      if ($count % 20 === 0 || $count === $last_row) {
        $operations[] = array(
          'node_delete_multiple',
          array(
            $nids,
          ),
        );
        $nids = array();
      }
      ++$count;
    }

    // Clear the cache once at the end.
    // How many operations are we going to do?
    $count_operations = count($operations);

    // Set up the Batch API.
    $batch = array(
      'operations' => $operations,
      'finished' => '_bulkdelete_batch_finished',
      'title' => t('Deleting !count nodes in !count2 operations.', array(
        '!count' => --$count,
        '!count2' => $count_operations,
      )),
    );
    batch_set($batch);
    batch_process();
  }
}

Functions

Name	Description
bulkdelete_form	Implements hook_form().
bulkdelete_form_submit	Implements hook_form_submit().