Respond to node deletion.
This is a node-type-specific hook, which is invoked only for the node type being affected. See Node API hooks for more information.
Use hook_node_delete() to respond to node deletion of all node types.
Note that when this hook is invoked, the changes have not yet been written to the database, because a database transaction is still in progress. The transaction is not finalized until the delete operation is entirely completed and node_delete_multiple() goes out of scope. You should not rely on data in the database at this time as it is not updated yet. You should also note that any write/update database queries executed from this hook are also not committed immediately. Check node_delete_multiple() and db_transaction() for more info.
Node $node: The node that is being deleted.
modules/ node/ node.api.php, line 993
- Hooks provided by the Node module.