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

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;
}

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