1. drupal
    1. 5 node.php
    2. 6 node.php
    3. 7
    4. 8
5 – 8 hook_node_info()

Define module-provided node types.

This hook allows a module to define one or more of its own node types. For example, the blog module uses it to define a blog node-type named "Blog entry." The name and attributes of each desired node type are specified in an array returned by the hook.

Only module-provided node types should be defined through this hook. User- provided (or 'custom') node types should be defined only in the 'node_type' database table, and should be maintained by using the node_type_save() and node_type_delete() functions.

Return value

An array of information defining the module's node types. The array contains a sub-array for each node type, with the machine-readable type name as the key. Each sub-array has up to 10 attributes. Possible attributes:

  • "name": the human-readable name of the node type. Required.
  • "base": the base string used to construct callbacks corresponding to this node type. (i.e. if base is defined as example_foo, then example_foo_insert will be called when inserting a node of that type). This string is usually the name of the module, but not always. Required.
  • "description": a brief description of the node type. Required.
  • "help": help information shown to the user when creating a node of this type.. Optional (defaults to '').
  • "has_title": boolean indicating whether or not this node type has a title field. Optional (defaults to TRUE).
  • "title_label": the label for the title field of this content type. Optional (defaults to 'Title').
  • "locked": boolean indicating whether the administrator can change the machine name of this type. FALSE = changeable (not locked), TRUE = unchangeable (locked). Optional (defaults to TRUE).

The machine-readable name of a node type should contain only letters, numbers, and underscores. Underscores will be converted into hyphens for the purpose of constructing URLs.

All attributes of a node type that are defined through this hook (except for 'locked') can be edited by a site administrator. This includes the machine-readable name of a node type, if 'locked' is set to FALSE.

Related topics


modules/node/node.api.php, line 893

function hook_node_info() {
  return array(
    'blog' => array(
      'name' => t('Blog entry'), 
      'base' => 'blog', 
      'description' => t('Use for multi-user blogs. Every user gets a personal blog.'),