node_delete
- Versions
- 4.6
node_delete($edit)- 4.7 – 7
node_delete($nid)
Delete a node.
Code
modules/node/node.module, line 958
<?php
function node_delete($nid) {
$node = node_load($nid);
if (node_access('delete', $node)) {
db_query('DELETE FROM {node} WHERE nid = %d', $node->nid);
db_query('DELETE FROM {node_revisions} WHERE nid = %d', $node->nid);
// Call the node-specific callback (if any):
node_invoke($node, 'delete');
node_invoke_nodeapi($node, 'delete');
// Clear the page and block caches.
cache_clear_all();
// Remove this node from the search index if needed.
if (function_exists('search_wipe')) {
search_wipe($node->nid, 'node');
}
watchdog('content', '@type: deleted %title.', array('@type' => $node->type, '%title' => $node->title));
drupal_set_message(t('@type %title has been deleted.', array('@type' => node_get_types('name', $node), '%title' => $node->title)));
}
}
?>
Note that node_delete() calls
Note that node_delete() calls node_load(), which keeps a cache of loaded nodes. That means it's possible to load a node with node_load() which should have been explicitly deleted with node_delete() earlier in the session! In other words, this works:
<?phpnode_delete($nid);
$node = node_load($nid);
?>
There are performance implications to this, and possibly security ones as well. See the node_load() documentation and its comments for information on how to clear node_load()'s cache. Also see this issue in Drupal's issue queue.