Create path alias programatically when node is created

Question

I have a custom content type that is created by a module. Is there a hook I can use to set the path alias of my custom content type when a node is created?

One of my fields is an alpha-numeric code, and I want to use that in the path. eg.: 'event/myc0d3'

I noticed that this function (path_set_alias) existed in 6, but I can't find the equivalent for 7. And do not know where I would call it.

Answer 1

Instead of using hook, Pathauto module should be used where you can define specific pattern how aliases are generated per content type (at /admin/config/search/path/patterns). In there you can use replacement patterns or code your own. It's much cleaner approach.

Otherwise you can try hook_node_presave($node) and change the alias directly:

$node->path['pathauto'] = 0; // Required only if Pathauto is enabled.
$node->path['alias'] = "foo/bar";

or use the path_save(&$path) function directly as below:

$path = array('source' => "node/$node->nid", 'alias' => 'foo/bar');
path_save($path);

Answer 2

The function is now called path_save(), see path_taxonomy_term_insert() for an example.

Answer 3

hook_node_insert() wasn't working in my case, and with some searches I came up with this blog post. I implemented hook_insert() in the same way and presto.

/**
 * Implements hook_insert().
 */
function mymodule_insert($node) {
    // Set the URL alias
    if (empty($node->path['alias'])) {
        $node->path['alias'] = 'slug/' . $node->nid;
    }
}

Answer 4

Implement hook_node_insert().