function hook_form

Display a node editing form.

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_form_BASE_FORM_ID_alter(), with base form ID 'node_form', to alter node forms for all node types.

This hook, implemented by node modules, is called to retrieve the form that is displayed to create or edit a node. This form is displayed at path node/add/[node type] or node/[node ID]/edit.

The submit button, administrative and display controls, and sections added by other modules (such as path settings, menu settings, comment settings, and fields managed by the Field UI module) are displayed automatically by the node module. This hook just needs to return the node title and form editing fields specific to the node type.

Parameters

Node $node: The node being added or edited.

$form_state: The form state array.

Return value

An array containing the title and any custom form elements to be displayed: in the node editing form.

Related topics

File

core/modules/node/node.api.php, line 1053

Hooks provided by the Node module.

Code

function hook_form(Node $node, &$form_state) {
  $type = node_type_get_type($node);

  $form['title'] = array(
    '#type' => 'textfield',
    '#title' => check_plain($type->title_label),
    '#default_value' => !empty($node->title) ? $node->title : '',
    '#required' => TRUE, '#weight' => -5
  );

  $form['field1'] = array(
    '#type' => 'textfield',
    '#title' => t('Custom field'),
    '#default_value' => $node->field1,
    '#maxlength' => 127,
  );
  $form['selectbox'] = array(
    '#type' => 'select',
    '#title' => t('Select box'),
    '#default_value' => $node->selectbox,
    '#options' => array(
      1 => 'Option A',
      2 => 'Option B',
      3 => 'Option C',
    ),
    '#description' => t('Choose an option.'),
  );

  return $form;
}