function node_save in Drupal 7

Same name and namespace in other branches

1. 4 modules/node.module \node_save()
2. 5 modules/node/node.module \node_save()
3. 6 modules/node/node.module \node_save()

Saves changes to a node or adds a new node.

Parameters

$node: The $node object to be saved. If $node->nid is omitted (or $node->is_new is TRUE), a new node will be added.

26 calls to node_save()

book_admin_edit_submit in modules/book/book.admin.inc

Form submission handler for book_admin_edit().

callback_batch_operation in modules/system/form.api.php

Perform a single batch operation.

callback_queue_worker in modules/system/system.api.php

Work on a single queue item.

CommentInterfaceTest::setEnvironment in modules/comment/comment.test

Re-configures the environment, module settings, and user permissions.

CommentRSSUnitTest::testCommentRSS in modules/comment/comment.test

Test comments as part of an RSS feed.

... See full list

1 string reference to 'node_save'

menu_test_menu in modules/simpletest/tests/menu_test.module

Implements hook_menu().

File

modules/node/node.module, line 1077

The core that allows content to be submitted to the site. Modules and scripts may programmatically submit nodes using the usual form API pattern.

Code

function node_save($node) {
  $transaction = db_transaction();
  try {

    // Load the stored entity, if any.
    if (!empty($node->nid) && !isset($node->original)) {
      $node->original = entity_load_unchanged('node', $node->nid);
    }
    field_attach_presave('node', $node);
    global $user;

    // Determine if we will be inserting a new node.
    if (!isset($node->is_new)) {
      $node->is_new = empty($node->nid);
    }

    // Set the timestamp fields.
    if (empty($node->created)) {
      $node->created = REQUEST_TIME;
    }

    // The changed timestamp is always updated for bookkeeping purposes,
    // for example: revisions, searching, etc.
    $node->changed = REQUEST_TIME;
    $node->timestamp = REQUEST_TIME;
    $update_node = TRUE;

    // Let modules modify the node before it is saved to the database.
    module_invoke_all('node_presave', $node);
    module_invoke_all('entity_presave', $node, 'node');
    if ($node->is_new || !empty($node->revision)) {

      // When inserting either a new node or a new node revision, $node->log
      // must be set because {node_revision}.log is a text column and therefore
      // cannot have a default value. However, it might not be set at this
      // point (for example, if the user submitting a node form does not have
      // permission to create revisions), so we ensure that it is at least an
      // empty string in that case.
      // @todo: Make the {node_revision}.log column nullable so that we can
      // remove this check.
      if (!isset($node->log)) {
        $node->log = '';
      }
    }
    elseif (!isset($node->log) || $node->log === '') {

      // If we are updating an existing node without adding a new revision, we
      // need to make sure $node->log is unset whenever it is empty. As long as
      // $node->log is unset, drupal_write_record() will not attempt to update
      // the existing database column when re-saving the revision; therefore,
      // this code allows us to avoid clobbering an existing log entry with an
      // empty one.
      unset($node->log);
    }

    // When saving a new node revision, unset any existing $node->vid so as to
    // ensure that a new revision will actually be created, then store the old
    // revision ID in a separate property for use by node hook implementations.
    if (!$node->is_new && !empty($node->revision) && $node->vid) {
      $node->old_vid = $node->vid;
      unset($node->vid);
    }

    // Save the node and node revision.
    if ($node->is_new) {

      // For new nodes, save new records for both the node itself and the node
      // revision.
      drupal_write_record('node', $node);
      _node_save_revision($node, $user->uid);
      $op = 'insert';
    }
    else {

      // For existing nodes, update the node record which matches the value of
      // $node->nid.
      drupal_write_record('node', $node, 'nid');

      // Then, if a new node revision was requested, save a new record for
      // that; otherwise, update the node revision record which matches the
      // value of $node->vid.
      if (!empty($node->revision)) {
        _node_save_revision($node, $user->uid);
      }
      else {
        _node_save_revision($node, $user->uid, 'vid');
        $update_node = FALSE;
      }
      $op = 'update';
    }
    if ($update_node) {
      db_update('node')
        ->fields(array(
        'vid' => $node->vid,
      ))
        ->condition('nid', $node->nid)
        ->execute();
    }

    // Call the node specific callback (if any). This can be
    // node_invoke($node, 'insert') or
    // node_invoke($node, 'update').
    node_invoke($node, $op);

    // Save fields.
    $function = "field_attach_{$op}";
    $function('node', $node);
    module_invoke_all('node_' . $op, $node);
    module_invoke_all('entity_' . $op, $node, 'node');

    // Update the node access table for this node.
    node_access_acquire_grants($node);

    // Clear internal properties.
    unset($node->is_new);
    unset($node->original);

    // Clear the static loading cache.
    entity_get_controller('node')
      ->resetCache(array(
      $node->nid,
    ));

    // Ignore slave server temporarily to give time for the
    // saved node to be propagated to the slave.
    db_ignore_slave();
  } catch (Exception $e) {
    $transaction
      ->rollback();
    watchdog_exception('node', $e);
    throw $e;
  }
}