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<?php
/**
* @file
* Definition of Drupal\node\NodeFormController.
*/
namespace Drupal\node;
use Drupal\entity\EntityInterface;
use Drupal\entity\EntityFormController;
/**
* Form controller for the node edit forms.
*/
class NodeFormController extends EntityFormController {
/**
* Prepares the node object.
*
* Fills in a few default values, and then invokes hook_prepare() on the node
* type module, and hook_node_prepare() on all modules.
*
* Overrides Drupal\entity\EntityFormController::prepareEntity().
*/
protected function prepareEntity(EntityInterface $node) {
// Set up default values, if required.
$node_options = variable_get('node_options_' . $node->type, array('status', 'promote'));
// If this is a new node, fill in the default values.
if (!isset($node->nid) || isset($node->is_new)) {
foreach (array('status', 'promote', 'sticky') as $key) {
// Multistep node forms might have filled in something already.
if (!isset($node->$key)) {
$node->$key = (int) in_array($key, $node_options);
}
}
global $user;
$node->uid = $user->uid;
$node->created = REQUEST_TIME;
}
else {
$node->date = format_date($node->created, 'custom', 'Y-m-d H:i:s O');
// Remove the log message from the original node entity.
$node->log = NULL;
}
// Always use the default revision setting.
$node->revision = in_array('revision', $node_options);
node_invoke($node, 'prepare');
module_invoke_all('node_prepare', $node);
}
/**
* Overrides Drupal\entity\EntityFormController::form().
*/
public function form(array $form, array &$form_state, EntityInterface $node) {
// Some special stuff when previewing a node.
if (isset($form_state['node_preview'])) {
$form['#prefix'] = $form_state['node_preview'];
$node->in_preview = TRUE;
}
else {
unset($node->in_preview);
}
// Override the default CSS class name, since the user-defined node type
// name in 'TYPE-node-form' potentially clashes with third-party class
// names.
$form['#attributes']['class'][0] = drupal_html_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') 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;
}
$form['langcode'] = array(
'#title' => t('Language'),
'#type' => 'language_select',
'#default_value' => $node->langcode,
'#languages' => LANGUAGE_ALL,
'#access' => !variable_get('node_type_language_hidden_' . $node->type, TRUE),
);
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$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('Briefly describe the changes you have made.'),
);
// 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,
);
// 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.
$form += array('#submit' => array());
return parent::form($form, $form_state, $node);
}
/**
* Overrides Drupal\entity\EntityFormController::actions().
*/
protected function actions(array $form, array &$form_state) {
$element = parent::actions($form, $form_state);
$node = $this->getEntity($form_state);
$preview_mode = variable_get('node_preview_' . $node->type, DRUPAL_OPTIONAL);
$element['preview'] = array(
'#access' => $preview_mode != DRUPAL_DISABLED,
'#value' => t('Preview'),
'#validate' => array(
array($this, 'validate'),
),
'#submit' => array(
array($this, 'submit'),
array($this, 'preview'),
),
);
$element['submit']['#access'] = $preview_mode != DRUPAL_REQUIRED || (!form_get_errors() && isset($form_state['node_preview']));
$element['delete']['#access'] = node_access('delete', $node);
return $element;
}
/**
* Overrides Drupal\entity\EntityFormController::validate().
*/
public function validate(array $form, array &$form_state) {
$node = $this->buildEntity($form, $form_state);
if (isset($node->nid) && (node_last_changed($node->nid) > $node->changed)) {
form_set_error('changed', t('The content on this page has either been modified by another user, or you have already submitted modifications using this form. As a result, your changes cannot be saved.'));
}
// Validate the "authored by" field.
if (!empty($node->name) && !($account = user_load_by_name($node->name))) {
// The use of empty() is mandatory in the context of usernames
// as the empty string denotes the anonymous user. In case we
// are dealing with an anonymous user we set the user ID to 0.
form_set_error('name', t('The username %name does not exist.', array('%name' => $node->name)));
}
// Validate the "authored on" field.
if (!empty($node->date) && strtotime($node->date) === FALSE) {
form_set_error('date', t('You have to specify a valid date.'));
}
// Invoke hook_validate() for node type specific validation and
// hook_node_validate() for miscellaneous validation needed by modules.
// Can't use node_invoke() or module_invoke_all(), because $form_state must
// be receivable by reference.
$function = node_type_get_base($node) . '_validate';
if (function_exists($function)) {
$function($node, $form, $form_state);
}
foreach (module_implements('node_validate') as $module) {
$function = $module . '_node_validate';
$function($node, $form, $form_state);
}
parent::validate($form, $form_state);
}
/**
* Updates the node object by processing the submitted values.
*
* This function can be called by a "Next" button of a wizard to update the
* form state's entity with the current step's values before proceeding to the
* next step.
*
* Overrides Drupal\entity\EntityFormController::submit().
*/
public function submit(array $form, array &$form_state) {
$this->submitNodeLanguage($form, $form_state);
// Build the node object from the submitted values.
$node = parent::submit($form, $form_state);
node_submit($node);
foreach (module_implements('node_submit') as $module) {
$function = $module . '_node_submit';
$function($node, $form, $form_state);
}
return $node;
}
/**
* Handle possible node language changes.
*/
protected function submitNodeLanguage(array $form, array &$form_state) {
if (field_has_translation_handler('node', 'node')) {
$bundle = $form_state['values']['type'];
$node_language = $form_state['values']['langcode'];
foreach (field_info_instances('node', $bundle) as $instance) {
$field_name = $instance['field_name'];
$field = field_info_field($field_name);
$previous_langcode = $form[$field_name]['#language'];
// Handle a possible language change: new language values are inserted,
// previous ones are deleted.
if ($field['translatable'] && $previous_langcode != $node_language) {
$form_state['values'][$field_name][$node_language] = $form_state['values'][$field_name][$previous_langcode];
$form_state['values'][$field_name][$previous_langcode] = array();
}
}
}
}
/**
* Form submission handler for the 'preview' action.
*
* @param $form
* An associative array containing the structure of the form.
* @param $form_state
* A reference to a keyed array containing the current state of the form.
*/
public function preview(array $form, array &$form_state) {
drupal_set_title(t('Preview'), PASS_THROUGH);
$form_state['node_preview'] = node_preview($this->getEntity($form_state));
$form_state['rebuild'] = TRUE;
}
/**
* Overrides Drupal\entity\EntityFormController::save().
*/
public function save(array $form, array &$form_state) {
$node = $this->getEntity($form_state);
$insert = empty($node->nid);
$node->save();
$node_link = l(t('view'), 'node/' . $node->nid);
$watchdog_args = array('@type' => $node->type, '%title' => $node->label());
$t_args = array('@type' => node_type_get_name($node), '%title' => $node->label());
if ($insert) {
watchdog('content', '@type: added %title.', $watchdog_args, WATCHDOG_NOTICE, $node_link);
drupal_set_message(t('@type %title has been created.', $t_args));
}
else {
watchdog('content', '@type: updated %title.', $watchdog_args, WATCHDOG_NOTICE, $node_link);
drupal_set_message(t('@type %title has been updated.', $t_args));
}
if ($node->nid) {
$form_state['values']['nid'] = $node->nid;
$form_state['nid'] = $node->nid;
$form_state['redirect'] = 'node/' . $node->nid;
}
else {
// In the unlikely case something went wrong on save, the node will be
// rebuilt and node form redisplayed the same way as in preview.
drupal_set_message(t('The post could not be saved.'), 'error');
$form_state['rebuild'] = TRUE;
}
// Clear the page and block caches.
cache_invalidate(array('content' => TRUE));
}
/**
* Overrides Drupal\entity\EntityFormController::delete().
*/
public function delete(array $form, array &$form_state) {
$destination = array();
if (isset($_GET['destination'])) {
$destination = drupal_get_destination();
unset($_GET['destination']);
}
$node = $this->getEntity($form_state);
$form_state['redirect'] = array('node/' . $node->nid . '/delete', array('query' => $destination));
}
}