function node_form in Drupal 7

Same name and namespace in other branches

1. 4 modules/node.module \node_form()
2. 5 modules/node/node.module \node_form()
3. 6 modules/node/node.pages.inc \node_form()

Form constructor for the node add/edit form.

See also

node_form_validate()

node_form_submit()

node_form_build_preview()

node_form_delete_submit()

Related topics

1 string reference to 'node_form'

node_forms in modules/node/node.module

Implements hook_forms().

File

modules/node/node.pages.inc, line 107

Page callbacks for adding, editing, deleting, and revisions management for content.

Code

function node_form($form, &$form_state, $node) {
  global $user;

  // During initial form build, add the node entity to the form state for use
  // during form building and processing. During a rebuild, use what is in the
  // form state.
  if (!isset($form_state['node'])) {
    if (!isset($node->title)) {
      $node->title = NULL;
    }
    node_object_prepare($node);
    $form_state['node'] = $node;
  }
  else {
    $node = $form_state['node'];
  }

  // Some special stuff when previewing a node.
  if (isset($form_state['node_preview'])) {
    $form['#prefix'] = $form_state['node_preview'];
    $node->in_preview = TRUE;
  }
  else {
    unset($node->in_preview);
  }

  // Identify this as a node edit form.
  // @todo D8: Remove. Modules can implement hook_form_BASE_FORM_ID_alter() now.
  $form['#node_edit_form'] = TRUE;
  $form['#attributes']['class'][] = 'node-form';
  if (!empty($node->type)) {
    $form['#attributes']['class'][] = 'node-' . $node->type . '-form';
  }

  // Basic node information.
  // These elements are just values so they are not even sent to the client.
  foreach (array(
    'nid',
    'vid',
    'uid',
    'created',
    'type',
    'language',
  ) as $key) {
    $form[$key] = array(
      '#type' => 'value',
      '#value' => isset($node->{$key}) ? $node->{$key} : NULL,
    );
  }

  // Changed must be sent to the client, for later overwrite error checking.
  $form['changed'] = array(
    '#type' => 'hidden',
    '#default_value' => isset($node->changed) ? $node->changed : NULL,
  );

  // Invoke hook_form() to get the node-specific bits. Can't use node_invoke(),
  // because hook_form() needs to be able to receive $form_state by reference.
  // @todo hook_form() implementations are unable to add #validate or #submit
  //   handlers to the form buttons below. Remove hook_form() entirely.
  $function = node_type_get_base($node) . '_form';
  if (function_exists($function) && ($extra = $function($node, $form_state))) {
    $form = array_merge_recursive($form, $extra);
  }

  // If the node type has a title, and the node type form defined no special
  // weight for it, we default to a weight of -5 for consistency.
  if (isset($form['title']) && !isset($form['title']['#weight'])) {
    $form['title']['#weight'] = -5;
  }

  // @todo D8: Remove. Modules should access the node using $form_state['node'].
  $form['#node'] = $node;
  $form['additional_settings'] = array(
    '#type' => 'vertical_tabs',
    '#weight' => 99,
  );

  // Add a log field if the "Create new revision" option is checked, or if the
  // current user has the ability to check that option.
  $form['revision_information'] = array(
    '#type' => 'fieldset',
    '#title' => t('Revision information'),
    '#collapsible' => TRUE,
    // Collapsed by default when "Create new revision" is unchecked
    '#collapsed' => !$node->revision,
    '#group' => 'additional_settings',
    '#attributes' => array(
      'class' => array(
        'node-form-revision-information',
      ),
    ),
    '#attached' => array(
      'js' => array(
        drupal_get_path('module', 'node') . '/node.js',
      ),
    ),
    '#weight' => 20,
    '#access' => $node->revision || user_access('administer nodes'),
  );
  $form['revision_information']['revision'] = array(
    '#type' => 'checkbox',
    '#title' => t('Create new revision'),
    '#default_value' => $node->revision,
    '#access' => user_access('administer nodes'),
  );

  // Check the revision log checkbox when the log textarea is filled in.
  // This must not happen if "Create new revision" is enabled by default, since
  // the state would auto-disable the checkbox otherwise.
  if (!$node->revision) {
    $form['revision_information']['revision']['#states'] = array(
      'checked' => array(
        'textarea[name="log"]' => array(
          'empty' => FALSE,
        ),
      ),
    );
  }
  $form['revision_information']['log'] = array(
    '#type' => 'textarea',
    '#title' => t('Revision log message'),
    '#rows' => 4,
    '#default_value' => !empty($node->log) ? $node->log : '',
    '#description' => t('Provide an explanation of the changes you are making. This will help other authors understand your motivations.'),
  );

  // Node author information for administrators
  $form['author'] = array(
    '#type' => 'fieldset',
    '#access' => user_access('administer nodes'),
    '#title' => t('Authoring information'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#group' => 'additional_settings',
    '#attributes' => array(
      'class' => array(
        'node-form-author',
      ),
    ),
    '#attached' => array(
      'js' => array(
        drupal_get_path('module', 'node') . '/node.js',
        array(
          'type' => 'setting',
          'data' => array(
            'anonymous' => variable_get('anonymous', t('Anonymous')),
          ),
        ),
      ),
    ),
    '#weight' => 90,
  );
  $form['author']['name'] = array(
    '#type' => 'textfield',
    '#title' => t('Authored by'),
    '#maxlength' => 60,
    '#autocomplete_path' => 'user/autocomplete',
    '#default_value' => !empty($node->name) ? $node->name : '',
    '#weight' => -1,
    '#description' => t('Leave blank for %anonymous.', array(
      '%anonymous' => variable_get('anonymous', t('Anonymous')),
    )),
  );
  $form['author']['date'] = array(
    '#type' => 'textfield',
    '#title' => t('Authored on'),
    '#maxlength' => 25,
    '#description' => t('Format: %time. The date format is YYYY-MM-DD and %timezone is the time zone offset from UTC. Leave blank to use the time of form submission.', array(
      '%time' => !empty($node->date) ? date_format(date_create($node->date), 'Y-m-d H:i:s O') : format_date($node->created, 'custom', 'Y-m-d H:i:s O'),
      '%timezone' => !empty($node->date) ? date_format(date_create($node->date), 'O') : format_date($node->created, 'custom', 'O'),
    )),
    '#default_value' => !empty($node->date) ? $node->date : '',
  );

  // Node options for administrators
  $form['options'] = array(
    '#type' => 'fieldset',
    '#access' => user_access('administer nodes'),
    '#title' => t('Publishing options'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#group' => 'additional_settings',
    '#attributes' => array(
      'class' => array(
        'node-form-options',
      ),
    ),
    '#attached' => array(
      'js' => array(
        drupal_get_path('module', 'node') . '/node.js',
      ),
    ),
    '#weight' => 95,
  );
  $form['options']['status'] = array(
    '#type' => 'checkbox',
    '#title' => t('Published'),
    '#default_value' => $node->status,
  );
  $form['options']['promote'] = array(
    '#type' => 'checkbox',
    '#title' => t('Promoted to front page'),
    '#default_value' => $node->promote,
  );
  $form['options']['sticky'] = array(
    '#type' => 'checkbox',
    '#title' => t('Sticky at top of lists'),
    '#default_value' => $node->sticky,
  );

  // Add the buttons.
  $form['actions'] = array(
    '#type' => 'actions',
  );
  $form['actions']['submit'] = array(
    '#type' => 'submit',
    '#access' => variable_get('node_preview_' . $node->type, DRUPAL_OPTIONAL) != DRUPAL_REQUIRED || !form_get_errors() && isset($form_state['node_preview']),
    '#value' => t('Save'),
    '#weight' => 5,
    '#submit' => array(
      'node_form_submit',
    ),
  );
  $form['actions']['preview'] = array(
    '#access' => variable_get('node_preview_' . $node->type, DRUPAL_OPTIONAL) != DRUPAL_DISABLED,
    '#type' => 'submit',
    '#value' => t('Preview'),
    '#weight' => 10,
    '#submit' => array(
      'node_form_build_preview',
    ),
  );
  if (!empty($node->nid) && node_access('delete', $node)) {
    $form['actions']['delete'] = array(
      '#type' => 'submit',
      '#value' => t('Delete'),
      '#weight' => 15,
      '#submit' => array(
        'node_form_delete_submit',
      ),
    );
  }

  // This form uses a button-level #submit handler for the form's main submit
  // action. node_form_submit() manually invokes all form-level #submit handlers
  // of the form. Without explicitly setting #submit, Form API would auto-detect
  // node_form_submit() as submit handler, but that is the button-level #submit
  // handler for the 'Save' action. To maintain backwards compatibility, a
  // #submit handler is auto-suggested for custom node type modules.
  $form['#validate'][] = 'node_form_validate';
  if (!isset($form['#submit']) && function_exists($node->type . '_node_form_submit')) {
    $form['#submit'][] = $node->type . '_node_form_submit';
  }
  $form += array(
    '#submit' => array(),
  );
  field_attach_form('node', $node, $form, $form_state, entity_language('node', $node));
  return $form;
}