+<?php
+
+/**
+ * @file
+ * Content administration and module settings user interface.
+ */
+
+use Drupal\node\NodeInterface;
+
+/**
+ * Updates all nodes in the passed-in array with the passed-in field values.
+ *
+ * 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 or nodes to update.
+ * @param array $updates
+ * Array of key/value pairs with node field names and the value to update that
+ * field to.
+ * @param string $langcode
+ * (optional) The language updates should be applied to. If none is specified
+ * all available languages are processed.
+ * @param bool $load
+ * (optional) TRUE if $nodes contains an array of node IDs to be loaded, FALSE
+ * if it contains fully loaded nodes. Defaults to FALSE.
+ * @param bool $revisions
+ * (optional) TRUE if $nodes contains an array of revision IDs instead of
+ * node IDs. Defaults to FALSE; will be ignored if $load is FALSE.
+ */
+function node_mass_update(array $nodes, array $updates, $langcode = NULL, $load = FALSE, $revisions = FALSE) {
+ // We use batch processing to prevent timeout when updating a large number
+ // of nodes.
+ if (count($nodes) > 10) {
+ $batch = [
+ 'operations' => [
+ ['_node_mass_update_batch_process', [$nodes, $updates, $langcode, $load, $revisions]]
+ ],
+ 'finished' => '_node_mass_update_batch_finished',
+ 'title' => t('Processing'),
+ // We use a single multi-pass operation, so the default
+ // 'Remaining x of y operations' message will be confusing here.
+ 'progress_message' => '',
+ 'error_message' => t('The update has encountered an error.'),
+ // The operations do not live in the .module file, so we need to
+ // tell the batch engine which file to load before calling them.
+ 'file' => drupal_get_path('module', 'node') . '/node.admin.inc',
+ ];
+ batch_set($batch);
+ }
+ else {
+ $storage = \Drupal::entityTypeManager()->getStorage('node');
+ if ($load && !$revisions) {
+ $nodes = $storage->loadMultiple($nodes);
+ }
+ foreach ($nodes as $node) {
+ if ($load && $revisions) {
+ $node = $storage->loadRevision($node);
+ }
+ _node_mass_update_helper($node, $updates, $langcode);
+ }
+ drupal_set_message(t('The update has been performed.'));
+ }
+}
+
+/**
+ * Updates individual nodes when fewer than 10 are queued.
+ *
+ * @param \Drupal\node\NodeInterface $node
+ * A node to update.
+ * @param array $updates
+ * Associative array of updates.
+ * @param string $langcode
+ * (optional) The language updates should be applied to. If none is specified
+ * all available languages are processed.
+ *
+ * @return \Drupal\node\NodeInterface
+ * An updated node object.
+ *
+ * @see node_mass_update()
+ */
+function _node_mass_update_helper(NodeInterface $node, array $updates, $langcode = NULL) {
+ $langcodes = isset($langcode) ? [$langcode] : array_keys($node->getTranslationLanguages());
+ // For efficiency manually save the original node before applying any changes.
+ $node->original = clone $node;
+ foreach ($langcodes as $langcode) {
+ foreach ($updates as $name => $value) {
+ $node->getTranslation($langcode)->$name = $value;
+ }
+ }
+ $node->save();
+ 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 string $langcode
+ * The language updates should be applied to. If none is specified all
+ * available languages are processed.
+ * @param bool $load
+ * TRUE if $nodes contains an array of node IDs to be loaded, FALSE if it
+ * contains fully loaded nodes.
+ * @param bool $revisions
+ * (optional) TRUE if $nodes contains an array of revision IDs instead of
+ * node IDs. Defaults to FALSE; will be ignored if $load is FALSE.
+ * @param array|\ArrayAccess $context
+ * An array of contextual key/values.
+ */
+function _node_mass_update_batch_process(array $nodes, array $updates, $langcode, $load, $revisions, &$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.
+ $storage = \Drupal::entityTypeManager()->getStorage('node');
+ $count = min(5, count($context['sandbox']['nodes']));
+ for ($i = 1; $i <= $count; $i++) {
+ // For each nid, load the node, reset the values, and save it.
+ $node = array_shift($context['sandbox']['nodes']);
+ if ($load) {
+ $node = $revisions ?
+ $storage->loadRevision($node) : $storage->load($node);
+ }
+ $node = _node_mass_update_helper($node, $updates, $langcode);
+
+ // Store result for post-processing in the finished callback.
+ $context['results'][] = \Drupal::l($node->label(), $node->urlInfo());
+
+ // 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 'finished' status of batch operation for node_mass_update().
+ *
+ * @param bool $success
+ * A boolean indicating whether the batch mass update operation successfully
+ * concluded.
+ * @param string[] $results
+ * An array of rendered links to nodes updated via the batch mode process.
+ * @param array $operations
+ * An array of function calls (not used in this function).
+ *
+ * @see _node_mass_update_batch_process()
+ */
+function _node_mass_update_batch_finished($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');
+ $message = \Drupal::translation()->formatPlural(count($results), '1 item successfully processed:', '@count items successfully processed:');
+ $item_list = [
+ '#theme' => 'item_list',
+ '#items' => $results,
+ ];
+ $message .= drupal_render($item_list);
+ drupal_set_message($message);
+ }
+}