class CommentForm in Zircon Profile 8

Same name and namespace in other branches

8.0 core/modules/comment/src/CommentForm.php \Drupal\comment\CommentForm

Base for controller for comment forms.

Hierarchy

class \Drupal\Core\Form\FormBase implements ContainerInjectionInterface, FormInterface uses DependencySerializationTrait, LinkGeneratorTrait, RedirectDestinationTrait, UrlGeneratorTrait, StringTranslationTrait
- class \Drupal\Core\Entity\EntityForm implements EntityFormInterface
  - class \Drupal\Core\Entity\ContentEntityForm implements ContentEntityFormInterface
    class \Drupal\comment\CommentForm

Expanded class hierarchy of CommentForm

File

core/modules/comment/src/CommentForm.php, line 25: Contains \Drupal\comment\CommentForm.

Namespace

Drupal\comment

View source

class CommentForm extends ContentEntityForm {

  /**
   * The current user.
   *
   * @var \Drupal\Core\Session\AccountInterface
   */
  protected $currentUser;

  /**
   * The renderer.
   *
   * @var \Drupal\Core\Render\RendererInterface
   */
  protected $renderer;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('entity.manager'), $container
      ->get('current_user'), $container
      ->get('renderer'));
  }

  /**
   * Constructs a new CommentForm.
   *
   * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
   *   The entity manager service.
   * @param \Drupal\Core\Session\AccountInterface $current_user
   *   The current user.
   * @param \Drupal\Core\Render\RendererInterface $renderer
   *   The renderer.
   */
  public function __construct(EntityManagerInterface $entity_manager, AccountInterface $current_user, RendererInterface $renderer) {
    parent::__construct($entity_manager);
    $this->currentUser = $current_user;
    $this->renderer = $renderer;
  }

  /**
   * {@inheritdoc}
   */
  public function form(array $form, FormStateInterface $form_state) {

    /** @var \Drupal\comment\CommentInterface $comment */
    $comment = $this->entity;
    $entity = $this->entityManager
      ->getStorage($comment
      ->getCommentedEntityTypeId())
      ->load($comment
      ->getCommentedEntityId());
    $field_name = $comment
      ->getFieldName();
    $field_definition = $this->entityManager
      ->getFieldDefinitions($entity
      ->getEntityTypeId(), $entity
      ->bundle())[$comment
      ->getFieldName()];
    $config = $this
      ->config('user.settings');

    // In several places within this function, we vary $form on:
    // - The current user's permissions.
    // - Whether the current user is authenticated or anonymous.
    // - The 'user.settings' configuration.
    // - The comment field's definition.
    $form['#cache']['contexts'][] = 'user.permissions';
    $form['#cache']['contexts'][] = 'user.roles:authenticated';
    $this->renderer
      ->addCacheableDependency($form, $config);
    $this->renderer
      ->addCacheableDependency($form, $field_definition
      ->getConfig($entity
      ->bundle()));

    // Use #comment-form as unique jump target, regardless of entity type.
    $form['#id'] = Html::getUniqueId('comment_form');
    $form['#theme'] = array(
      'comment_form__' . $entity
        ->getEntityTypeId() . '__' . $entity
        ->bundle() . '__' . $field_name,
      'comment_form',
    );
    $anonymous_contact = $field_definition
      ->getSetting('anonymous');
    $is_admin = $comment
      ->id() && $this->currentUser
      ->hasPermission('administer comments');
    if (!$this->currentUser
      ->isAuthenticated() && $anonymous_contact != COMMENT_ANONYMOUS_MAYNOT_CONTACT) {
      $form['#attached']['library'][] = 'core/drupal.form';
      $form['#attributes']['data-user-info-from-browser'] = TRUE;
    }

    // If not replying to a comment, use our dedicated page callback for new
    // Comments on entities.
    if (!$comment
      ->id() && !$comment
      ->hasParentComment()) {
      $form['#action'] = $this
        ->url('comment.reply', array(
        'entity_type' => $entity
          ->getEntityTypeId(),
        'entity' => $entity
          ->id(),
        'field_name' => $field_name,
      ));
    }
    $comment_preview = $form_state
      ->get('comment_preview');
    if (isset($comment_preview)) {
      $form += $comment_preview;
    }
    $form['author'] = array();

    // Display author information in a details element for comment moderators.
    if ($is_admin) {
      $form['author'] += array(
        '#type' => 'details',
        '#title' => $this
          ->t('Administration'),
      );
    }

    // Prepare default values for form elements.
    $author = '';
    if ($is_admin) {
      if (!$comment
        ->getOwnerId()) {
        $author = $comment
          ->getAuthorName();
      }
      $status = $comment
        ->getStatus();
      if (empty($comment_preview)) {
        $form['#title'] = $this
          ->t('Edit comment %title', array(
          '%title' => $comment
            ->getSubject(),
        ));
      }
    }
    else {
      $status = $this->currentUser
        ->hasPermission('skip comment approval') ? CommentInterface::PUBLISHED : CommentInterface::NOT_PUBLISHED;
    }
    $date = '';
    if ($comment
      ->id()) {
      $date = !empty($comment->date) ? $comment->date : DrupalDateTime::createFromTimestamp($comment
        ->getCreatedTime());
    }

    // The uid field is only displayed when a user with the permission
    // 'administer comments' is editing an existing comment from an
    // authenticated user.
    $owner = $comment
      ->getOwner();
    $form['author']['uid'] = [
      '#type' => 'entity_autocomplete',
      '#target_type' => 'user',
      '#default_value' => $owner
        ->isAnonymous() ? NULL : $owner,
      // A comment can be made anonymous by leaving this field empty therefore
      // there is no need to list them in the autocomplete.
      '#selection_settings' => [
        'include_anonymous' => FALSE,
      ],
      '#title' => $this
        ->t('Authored by'),
      '#description' => $this
        ->t('Leave blank for %anonymous.', [
        '%anonymous' => $config
          ->get('anonymous'),
      ]),
      '#access' => $is_admin,
    ];

    // The name field is displayed when an anonymous user is adding a comment or
    // when a user with the permission 'administer comments' is editing an
    // existing comment from an anonymous user.
    $form['author']['name'] = array(
      '#type' => 'textfield',
      '#title' => $is_admin ? $this
        ->t('Name for @anonymous', [
        '@anonymous' => $config
          ->get('anonymous'),
      ]) : $this
        ->t('Your name'),
      '#default_value' => $author,
      '#required' => $this->currentUser
        ->isAnonymous() && $anonymous_contact == COMMENT_ANONYMOUS_MUST_CONTACT,
      '#maxlength' => 60,
      '#access' => $this->currentUser
        ->isAnonymous() || $is_admin,
      '#size' => 30,
      '#attributes' => [
        'data-drupal-default-value' => $config
          ->get('anonymous'),
      ],
    );
    if ($is_admin) {

      // When editing a comment only display the name textfield if the uid field
      // is empty.
      $form['author']['name']['#states'] = [
        'visible' => [
          ':input[name="uid"]' => array(
            'empty' => TRUE,
          ),
        ],
      ];
    }

    // Add author email and homepage fields depending on the current user.
    $form['author']['mail'] = array(
      '#type' => 'email',
      '#title' => $this
        ->t('Email'),
      '#default_value' => $comment
        ->getAuthorEmail(),
      '#required' => $this->currentUser
        ->isAnonymous() && $anonymous_contact == COMMENT_ANONYMOUS_MUST_CONTACT,
      '#maxlength' => 64,
      '#size' => 30,
      '#description' => $this
        ->t('The content of this field is kept private and will not be shown publicly.'),
      '#access' => $comment
        ->getOwner()
        ->isAnonymous() && $is_admin || $this->currentUser
        ->isAnonymous() && $anonymous_contact != COMMENT_ANONYMOUS_MAYNOT_CONTACT,
    );
    $form['author']['homepage'] = array(
      '#type' => 'url',
      '#title' => $this
        ->t('Homepage'),
      '#default_value' => $comment
        ->getHomepage(),
      '#maxlength' => 255,
      '#size' => 30,
      '#access' => $is_admin || $this->currentUser
        ->isAnonymous() && $anonymous_contact != COMMENT_ANONYMOUS_MAYNOT_CONTACT,
    );

    // Add administrative comment publishing options.
    $form['author']['date'] = array(
      '#type' => 'datetime',
      '#title' => $this
        ->t('Authored on'),
      '#default_value' => $date,
      '#size' => 20,
      '#access' => $is_admin,
    );
    $form['author']['status'] = array(
      '#type' => 'radios',
      '#title' => $this
        ->t('Status'),
      '#default_value' => $status,
      '#options' => array(
        CommentInterface::PUBLISHED => $this
          ->t('Published'),
        CommentInterface::NOT_PUBLISHED => $this
          ->t('Not published'),
      ),
      '#access' => $is_admin,
    );
    return parent::form($form, $form_state, $comment);
  }

  /**
   * {@inheritdoc}
   */
  protected function actions(array $form, FormStateInterface $form_state) {
    $element = parent::actions($form, $form_state);

    /* @var \Drupal\comment\CommentInterface $comment */
    $comment = $this->entity;
    $entity = $comment
      ->getCommentedEntity();
    $field_definition = $this->entityManager
      ->getFieldDefinitions($entity
      ->getEntityTypeId(), $entity
      ->bundle())[$comment
      ->getFieldName()];
    $preview_mode = $field_definition
      ->getSetting('preview');

    // No delete action on the comment form.
    unset($element['delete']);

    // Mark the submit action as the primary action, when it appears.
    $element['submit']['#button_type'] = 'primary';

    // Only show the save button if comment previews are optional or if we are
    // already previewing the submission.
    $element['submit']['#access'] = $comment
      ->id() && $this->currentUser
      ->hasPermission('administer comments') || $preview_mode != DRUPAL_REQUIRED || $form_state
      ->get('comment_preview');
    $element['preview'] = array(
      '#type' => 'submit',
      '#value' => $this
        ->t('Preview'),
      '#access' => $preview_mode != DRUPAL_DISABLED,
      '#submit' => array(
        '::submitForm',
        '::preview',
      ),
    );
    return $element;
  }

  /**
   * {@inheritdoc}
   */
  public function buildEntity(array $form, FormStateInterface $form_state) {

    /** @var \Drupal\comment\CommentInterface $comment */
    $comment = parent::buildEntity($form, $form_state);
    if (!$form_state
      ->isValueEmpty('date') && $form_state
      ->getValue('date') instanceof DrupalDateTime) {
      $comment
        ->setCreatedTime($form_state
        ->getValue('date')
        ->getTimestamp());
    }
    else {
      $comment
        ->setCreatedTime(REQUEST_TIME);
    }

    // Empty author ID should revert to anonymous.
    $author_id = $form_state
      ->getValue('uid');
    if ($comment
      ->id() && $this->currentUser
      ->hasPermission('administer comments')) {

      // Admin can leave the author ID blank to revert to anonymous.
      $author_id = $author_id ?: 0;
    }
    if (!is_null($author_id)) {
      if ($author_id === 0 && $form['author']['name']['#access']) {

        // Use the author name value when the form has access to the element and
        // the author ID is anonymous.
        $comment
          ->setAuthorName($form_state
          ->getValue('name'));
      }
      else {

        // Ensure the author name is not set.
        $comment
          ->setAuthorName(NULL);
      }
    }
    else {
      $author_id = $this->currentUser
        ->id();
    }
    $comment
      ->setOwnerId($author_id);

    // Validate the comment's subject. If not specified, extract from comment
    // body.
    if (trim($comment
      ->getSubject()) == '') {
      if ($comment
        ->hasField('comment_body')) {

        // The body may be in any format, so:
        // 1) Filter it into HTML
        // 2) Strip out all HTML tags
        // 3) Convert entities back to plain-text.
        $comment_text = $comment->comment_body->processed;
        $comment
          ->setSubject(Unicode::truncate(trim(Html::decodeEntities(strip_tags($comment_text))), 29, TRUE, TRUE));
      }

      // Edge cases where the comment body is populated only by HTML tags will
      // require a default subject.
      if ($comment
        ->getSubject() == '') {
        $comment
          ->setSubject($this
          ->t('(No subject)'));
      }
    }
    return $comment;
  }

  /**
   * {@inheritdoc}
   */
  protected function getEditedFieldNames(FormStateInterface $form_state) {
    return array_merge([
      'created',
      'name',
    ], parent::getEditedFieldNames($form_state));
  }

  /**
   * {@inheritdoc}
   */
  protected function flagViolations(EntityConstraintViolationListInterface $violations, array $form, FormStateInterface $form_state) {

    // Manually flag violations of fields not handled by the form display.
    foreach ($violations
      ->getByField('created') as $violation) {
      $form_state
        ->setErrorByName('date', $violation
        ->getMessage());
    }
    foreach ($violations
      ->getByField('name') as $violation) {
      $form_state
        ->setErrorByName('name', $violation
        ->getMessage());
    }
    parent::flagViolations($violations, $form, $form_state);
  }

  /**
   * Form submission handler for the 'preview' action.
   *
   * @param $form
   *   An associative array containing the structure of the form.
   * @param $form_state
   *   The current state of the form.
   */
  public function preview(array &$form, FormStateInterface $form_state) {
    $comment_preview = comment_preview($this->entity, $form_state);
    $comment_preview['#title'] = $this
      ->t('Preview comment');
    $form_state
      ->set('comment_preview', $comment_preview);
    $form_state
      ->setRebuild();
  }

  /**
   * {@inheritdoc}
   */
  public function save(array $form, FormStateInterface $form_state) {
    $comment = $this->entity;
    $entity = $comment
      ->getCommentedEntity();
    $field_name = $comment
      ->getFieldName();
    $uri = $entity
      ->urlInfo();
    $logger = $this
      ->logger('content');
    if ($this->currentUser
      ->hasPermission('post comments') && ($this->currentUser
      ->hasPermission('administer comments') || $entity->{$field_name}->status == CommentItemInterface::OPEN)) {
      $comment
        ->save();
      $form_state
        ->setValue('cid', $comment
        ->id());

      // Add a log entry.
      $logger
        ->notice('Comment posted: %subject.', array(
        '%subject' => $comment
          ->getSubject(),
        'link' => $this
          ->l(t('View'), $comment
          ->urlInfo()
          ->setOption('fragment', 'comment-' . $comment
          ->id())),
      ));

      // Explain the approval queue if necessary.
      if (!$comment
        ->isPublished()) {
        if (!$this->currentUser
          ->hasPermission('administer comments')) {
          drupal_set_message($this
            ->t('Your comment has been queued for review by site administrators and will be published after approval.'));
        }
      }
      else {
        drupal_set_message($this
          ->t('Your comment has been posted.'));
      }
      $query = array();

      // Find the current display page for this comment.
      $field_definition = $this->entityManager
        ->getFieldDefinitions($entity
        ->getEntityTypeId(), $entity
        ->bundle())[$field_name];
      $page = $this->entityManager
        ->getStorage('comment')
        ->getDisplayOrdinal($comment, $field_definition
        ->getSetting('default_mode'), $field_definition
        ->getSetting('per_page'));
      if ($page > 0) {
        $query['page'] = $page;
      }

      // Redirect to the newly posted comment.
      $uri
        ->setOption('query', $query);
      $uri
        ->setOption('fragment', 'comment-' . $comment
        ->id());
    }
    else {
      $logger
        ->warning('Comment: unauthorized comment submitted or comment submitted to a closed post %subject.', array(
        '%subject' => $comment
          ->getSubject(),
      ));
      drupal_set_message($this
        ->t('Comment: unauthorized comment submitted or comment submitted to a closed post %subject.', array(
        '%subject' => $comment
          ->getSubject(),
      )), 'error');

      // Redirect the user to the entity they are commenting on.
    }
    $form_state
      ->setRedirectUrl($uri);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
CommentForm::$currentUser	protected	property	The current user.
CommentForm::$renderer	protected	property	The renderer.
CommentForm::actions	protected	function	Returns an array of supported actions for the current entity form. Overrides EntityForm::actions
CommentForm::buildEntity	public	function	Builds an updated entity object based upon the submitted form values. Overrides ContentEntityForm::buildEntity
CommentForm::create	public static	function	Instantiates a new instance of this class. Overrides ContentEntityForm::create
CommentForm::flagViolations	protected	function	Flags violations for the current form. Overrides ContentEntityForm::flagViolations
CommentForm::form	public	function	Gets the actual form array to be built. Overrides ContentEntityForm::form
CommentForm::getEditedFieldNames	protected	function	Gets the names of all fields edited in the form. Overrides ContentEntityForm::getEditedFieldNames
CommentForm::preview	public	function	Form submission handler for the 'preview' action.
CommentForm::save	public	function	Form submission handler for the 'save' action. Overrides EntityForm::save
CommentForm::__construct	public	function	Constructs a new CommentForm. Overrides ContentEntityForm::__construct
ContentEntityForm::$entityManager	protected	property	The entity manager. Overrides EntityForm::$entityManager
ContentEntityForm::copyFormValuesToEntity	protected	function	Copies top-level form values to entity properties Overrides EntityForm::copyFormValuesToEntity
ContentEntityForm::getFormDisplay	public	function	Gets the form display. Overrides ContentEntityFormInterface::getFormDisplay
ContentEntityForm::getFormLangcode	public	function	Gets the code identifying the active form language. Overrides ContentEntityFormInterface::getFormLangcode
ContentEntityForm::init	protected	function	Initializes the form state and the entity before the first form build. Overrides EntityForm::init
ContentEntityForm::initFormLangcodes	protected	function	Initializes form language code values.
ContentEntityForm::isDefaultFormLangcode	public	function	Checks whether the current form language matches the entity one. Overrides ContentEntityFormInterface::isDefaultFormLangcode
ContentEntityForm::setFormDisplay	public	function	Sets the form display. Overrides ContentEntityFormInterface::setFormDisplay
ContentEntityForm::submitForm	public	function	This is the default entity object builder function. It is called before any other submit handler to build the new entity object to be used by the following submit handlers. At this point of the form workflow the entity is validated and the form state… Overrides EntityForm::submitForm	4
ContentEntityForm::updateChangedTime	public	function	Updates the changed time of the entity.
ContentEntityForm::updateFormLangcode	public	function	Updates the form language to reflect any change to the entity language.
ContentEntityForm::validateForm	public	function	Button-level validation handlers are highly discouraged for entity forms, as they will prevent entity validation from running. If the entity is going to be saved during the form submission, this method should be manually invoked from the button-level… Overrides FormBase::validateForm	3
DependencySerializationTrait::$_serviceIds	protected	property	An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep	public	function		1
DependencySerializationTrait::__wakeup	public	function		2
EntityForm::$entity	protected	property	The entity being used by this form.	15
EntityForm::$entityTypeManager	protected	property	The entity type manager.
EntityForm::$moduleHandler	protected	property	The module handler service.
EntityForm::$operation	protected	property	The name of the current operation.
EntityForm::actionsElement	protected	function	Returns the action form element for the current entity form.
EntityForm::afterBuild	public	function	Form element #after_build callback: Updates the entity with submitted data.
EntityForm::buildForm	public	function	Form constructor. Overrides FormInterface::buildForm	7
EntityForm::getBaseFormId	public	function	Returns a string identifying the base form. Overrides BaseFormIdInterface::getBaseFormId	4
EntityForm::getEntity	public	function	Gets the form entity. Overrides EntityFormInterface::getEntity
EntityForm::getEntityFromRouteMatch	public	function	Determines which entity will be used by this form from a RouteMatch object. Overrides EntityFormInterface::getEntityFromRouteMatch	2
EntityForm::getFormId	public	function	Returns a unique string identifying the form. Overrides FormInterface::getFormId	9
EntityForm::getOperation	public	function	Gets the operation identifying the form. Overrides EntityFormInterface::getOperation
EntityForm::prepareEntity	protected	function	Prepares the entity object before the form is built first.	5
EntityForm::prepareInvokeAll	protected	function	Invokes the specified prepare hook variant.
EntityForm::processForm	public	function	Process callback: assigns weights and hides extra fields.
EntityForm::setEntity	public	function	Sets the form entity. Overrides EntityFormInterface::setEntity
EntityForm::setEntityManager	public	function	Sets the entity manager for this form. Overrides EntityFormInterface::setEntityManager
EntityForm::setEntityTypeManager	public	function	Sets the entity type manager for this form. Overrides EntityFormInterface::setEntityTypeManager
EntityForm::setModuleHandler	public	function	Sets the module handler for this form. Overrides EntityFormInterface::setModuleHandler
EntityForm::setOperation	public	function	Sets the operation for this form. Overrides EntityFormInterface::setOperation
FormBase::$configFactory	protected	property	The config factory.	3
FormBase::$loggerFactory	protected	property	The logger factory.
FormBase::$requestStack	protected	property	The request stack.	1
FormBase::$routeMatch	protected	property	The route match.
FormBase::config	protected	function	Retrieves a configuration object.
FormBase::configFactory	protected	function	Gets the config factory for this form.	3
FormBase::container	private	function	Returns the service container.
FormBase::currentUser	protected	function	Gets the current user.
FormBase::getRequest	protected	function	Gets the request object.
FormBase::getRouteMatch	protected	function	Gets the route match.
FormBase::logger	protected	function	Gets the logger for a specific channel.
FormBase::resetConfigFactory	public	function	Resets the configuration factory.
FormBase::setConfigFactory	public	function	Sets the config factory for this form.
FormBase::setRequestStack	public	function	Sets the request stack object to use.
LinkGeneratorTrait::$linkGenerator	protected	property	The link generator.	1
LinkGeneratorTrait::getLinkGenerator	protected	function	Returns the link generator.
LinkGeneratorTrait::l	protected	function	Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator	public	function	Sets the link generator service.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
UrlGeneratorTrait::$urlGenerator	protected	property	The url generator.
UrlGeneratorTrait::getUrlGenerator	protected	function	Returns the URL generator service.
UrlGeneratorTrait::redirect	protected	function	Returns a redirect response object for the specified route.
UrlGeneratorTrait::setUrlGenerator	public	function	Sets the URL generator service.
UrlGeneratorTrait::url	protected	function	Generates a URL or path for a specific route based on the given parameters.

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class CommentForm in Zircon Profile 8

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