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class SubscriptionBlock in Mailing List 8

Mailing list subscription blocks.

Plugin annotation


@Block(
  id = "mailing_list_subscription_block",
  admin_label = @Translation("Mailing list subscription"),
  category = @Translation("Mailing list")
)

Hierarchy

Expanded class hierarchy of SubscriptionBlock

File

src/Plugin/Block/SubscriptionBlock.php, line 25

Namespace

Drupal\mailing_list\Plugin\Block
View source
class SubscriptionBlock extends BlockBase implements ContainerFactoryPluginInterface {

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * The form builder.
   *
   * @var \Drupal\Core\Form\FormBuilderInterface
   */
  protected $formBuilder;

  /**
   * The mailing list manager.
   *
   * @var \Drupal\mailing_list\MailingListManagerInterface
   */
  protected $mailingListManager;

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

  /**
   * Constructs a SubscriptionBlock object.
   *
   * @param array $configuration
   *   A configuration array containing information about the plugin instance.
   * @param string $plugin_id
   *   The plugin_id for the plugin instance.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\Core\Entity\FormBuilderInterface $form_builder
   *   The form builder object.
   * @param \Drupal\mailing_list\MailingListManagerInterface $mailing_list_manager
   *   The mailing list manager.
   * @param \Drupal\Core\Session\AccountInterface $current_user
   *   The current user.
   */
  public function __construct(array $configuration, $plugin_id, $plugin_definition, EntityTypeManagerInterface $entity_type_manager, FormBuilderInterface $form_builder, MailingListManagerInterface $mailing_list_manager, AccountInterface $current_user) {
    parent::__construct($configuration, $plugin_id, $plugin_definition);
    $this->entityTypeManager = $entity_type_manager;
    $this->formBuilder = $form_builder;
    $this->mailingListManager = $mailing_list_manager;
    $this->currentUser = $current_user;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static($configuration, $plugin_id, $plugin_definition, $container
      ->get('entity_type.manager'), $container
      ->get('form_builder'), $container
      ->get('mailing_list.manager'), $container
      ->get('current_user'));
  }

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'list' => '',
      'message' => '',
      'form_id' => '',
      'manage_link' => TRUE,
    ];
  }

  /**
   * {@inheritdoc}
   */
  protected function blockAccess(AccountInterface $account) {

    // No list, no access opinion.
    if (empty($this->configuration['list'])) {
      return AccessResult::neutral();
    }

    // Users must be able to subscribe to all configured mailing lists.
    return AccessResult::allowedIfHasPermission($account, 'subscribe to ' . $this->configuration['list'] . ' mailing list');
  }

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

    // Mailing list for this subscription block.
    $options = [];
    foreach ($this->entityTypeManager
      ->getStorage('mailing_list')
      ->loadMultiple() as $list) {
      $options[$list
        ->id()] = $list
        ->label();
    }
    if (count($options) > 1) {
      asort($options, SORT_STRING);
    }
    $form['manage_link'] = [
      '#type' => 'checkbox',
      '#title' => $this
        ->t('Show manage subscriptions link'),
      '#default_value' => $this->configuration['manage_link'],
    ];
    $form['list'] = [
      '#type' => 'select',
      '#title' => $this
        ->t('Mailing list'),
      '#options' => $options,
      '#required' => TRUE,
      '#default_value' => $this->configuration['list'] ?: key($options),
    ];

    // Block message.
    $form['message'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Block message'),
      '#size' => 60,
      '#maxlength' => 255,
      '#description' => $this
        ->t('Message to the user. Leave empty for display the mailing list configured help. Enter @none for no message at all.', [
        '@none' => '<none>',
      ]),
      '#default_value' => $this->configuration['message'],
    ];

    // Subscription form ID.
    $form['form_id'] = [
      '#type' => 'textfield',
      '#title' => $this
        ->t('Form ID'),
      '#field_prefix' => 'mailing_list_subscription_&lt;LIST-ID&gt;_',
      '#field_suffix' => '_block_form',
      '#size' => 16,
      '#maxlength' => 32,
      '#description' => $this
        ->t('Customize the subscription form ID.'),
      '#default_value' => $this->configuration['form_id'],
    ];
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function blockValidate($form, FormStateInterface $form_state) {
    if (!preg_match('/^[a-z0-9_]*$/', $form_state
      ->getValue('form_id'))) {
      $form_state
        ->setErrorByName('form_id', $this
        ->t('A unique machine-readable name containing letters, numbers, and underscores.'));
    }
  }

  /**
   * {@inheritdoc}
   */
  public function blockSubmit($form, FormStateInterface $form_state) {
    $this->configuration['list'] = $form_state
      ->getValue('list');
    $this->configuration['message'] = $form_state
      ->getValue('message');
    $this->configuration['form_id'] = $form_state
      ->getValue('form_id');
    $this->configuration['manage_link'] = $form_state
      ->getValue('manage_link');
  }

  /**
   * {@inheritdoc}
   */
  public function build() {

    /** @var \Drupal\mailing_list\Form\SubscriptionForm $form_object */
    $form_object = $this->entityTypeManager
      ->getFormObject('mailing_list_subscription', 'block');

    // Add message.
    $form_object
      ->setMessage($this->configuration['message']);

    // Alter form ID.
    $form_object
      ->setCustomId($this->configuration['form_id']);

    // Set a new subscription entity as the entity form.

    /** @var \Drupal\mailing_list\SubscriptionInterface $entity */
    $entity = $this->entityTypeManager
      ->getStorage('mailing_list_subscription')
      ->create([
      'mailing_list' => $this->configuration['list'],
      'email' => $this->currentUser
        ->getEmail(),
    ]);
    $form_object
      ->setEntity($entity);

    // Add the form destination.
    $form_object
      ->setFormDestination($entity
      ->getList()
      ->getFormDestination());

    // Alter the default form submit button.
    $form = $this->formBuilder
      ->getForm($form_object);
    if ($form['actions']['submit']['#value'] == $this
      ->t('Save')
      ->render()) {
      $form['actions']['submit']['#value'] = $this
        ->t('Subscribe');
    }

    // Remove admin fields groups.
    unset($form['advanced']);
    unset($form['subscription_authoring']);
    unset($form['subscription_status']);

    // Block title is taken from the form title.
    if (isset($this->configuration['label']) && ($block_title = trim($this->configuration['label']))) {
      $form['#title'] = $block_title;
    }

    // Add manage subscription link.
    if ($this->configuration['manage_link']) {
      $manage_url = Url::fromRoute('entity.mailing_list_subscription.manage');
      if ($manage_url
        ->access()) {
        $form['manage_link'] = [
          '#type' => 'link',
          '#title' => $this
            ->t('Manage your subscriptions'),
          '#url' => $manage_url,
        ];
      }
    }
    return $form;
  }

}

Members

Namesort descending Modifiers Type Description Overrides
BlockPluginInterface::BLOCK_LABEL_VISIBLE constant Indicates the block label (title) should be displayed to end users.
BlockPluginTrait::$transliteration protected property The transliteration service.
BlockPluginTrait::access public function
BlockPluginTrait::baseConfigurationDefaults protected function Returns generic default configuration for block plugins.
BlockPluginTrait::buildConfigurationForm public function Creates a generic configuration form for all block types. Individual block plugins can add elements to this form by overriding BlockBase::blockForm(). Most block plugins should not override this method unless they need to alter the generic form elements. 2
BlockPluginTrait::calculateDependencies public function
BlockPluginTrait::getConfiguration public function 1
BlockPluginTrait::getMachineNameSuggestion public function 1
BlockPluginTrait::getPreviewFallbackString public function 3
BlockPluginTrait::label public function
BlockPluginTrait::setConfiguration public function
BlockPluginTrait::setConfigurationValue public function
BlockPluginTrait::setTransliteration public function Sets the transliteration service.
BlockPluginTrait::submitConfigurationForm public function Most block plugins should not override this method. To add submission handling for a specific block type, override BlockBase::blockSubmit().
BlockPluginTrait::transliteration protected function Wraps the transliteration service.
BlockPluginTrait::validateConfigurationForm public function Most block plugins should not override this method. To add validation for a specific block type, override BlockBase::blockValidate(). 1
ContextAwarePluginAssignmentTrait::addContextAssignmentElement protected function Builds a form element for assigning a context to a given slot.
ContextAwarePluginAssignmentTrait::contextHandler protected function Wraps the context handler.
ContextAwarePluginBase::$context protected property The data objects representing the context of this plugin.
ContextAwarePluginBase::$contexts Deprecated private property Data objects representing the contexts passed in the plugin configuration.
ContextAwarePluginBase::createContextFromConfiguration protected function Overrides ContextAwarePluginBase::createContextFromConfiguration
ContextAwarePluginBase::getCacheContexts public function The cache contexts associated with this object. Overrides CacheableDependencyInterface::getCacheContexts 9
ContextAwarePluginBase::getCacheMaxAge public function The maximum age for which this object may be cached. Overrides CacheableDependencyInterface::getCacheMaxAge 7
ContextAwarePluginBase::getCacheTags public function The cache tags associated with this object. Overrides CacheableDependencyInterface::getCacheTags 4
ContextAwarePluginBase::getContext public function This code is identical to the Component in order to pick up a different Context class. Overrides ContextAwarePluginBase::getContext
ContextAwarePluginBase::getContextDefinition public function Overrides ContextAwarePluginBase::getContextDefinition
ContextAwarePluginBase::getContextDefinitions public function Overrides ContextAwarePluginBase::getContextDefinitions
ContextAwarePluginBase::getContextMapping public function Gets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::getContextMapping
ContextAwarePluginBase::getContexts public function Gets the defined contexts. Overrides ContextAwarePluginInterface::getContexts
ContextAwarePluginBase::getContextValue public function Gets the value for a defined context. Overrides ContextAwarePluginInterface::getContextValue
ContextAwarePluginBase::getContextValues public function Gets the values for all defined contexts. Overrides ContextAwarePluginInterface::getContextValues
ContextAwarePluginBase::setContext public function Set a context on this plugin. Overrides ContextAwarePluginBase::setContext
ContextAwarePluginBase::setContextMapping public function Sets a mapping of the expected assignment names to their context names. Overrides ContextAwarePluginInterface::setContextMapping
ContextAwarePluginBase::setContextValue public function Sets the value for a defined context. Overrides ContextAwarePluginBase::setContextValue
ContextAwarePluginBase::validateContexts public function Validates the set values for the defined contexts. Overrides ContextAwarePluginInterface::validateContexts
ContextAwarePluginBase::__get public function Implements magic __get() method.
DependencySerializationTrait::$_entityStorages protected property An array of entity type IDs keyed by the property name of their storages.
DependencySerializationTrait::$_serviceIds protected property An array of service IDs keyed by property name used for serialization.
DependencySerializationTrait::__sleep public function 1
DependencySerializationTrait::__wakeup public function 2
MessengerTrait::$messenger protected property The messenger. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
PluginBase::$configuration protected property Configuration information passed into the plugin. 1
PluginBase::$pluginDefinition protected property The plugin implementation definition. 1
PluginBase::$pluginId protected property The plugin_id.
PluginBase::DERIVATIVE_SEPARATOR constant A string which is used to separate base plugin IDs from the derivative ID.
PluginBase::getBaseId public function Gets the base_plugin_id of the plugin instance. Overrides DerivativeInspectionInterface::getBaseId
PluginBase::getDerivativeId public function Gets the derivative_id of the plugin instance. Overrides DerivativeInspectionInterface::getDerivativeId
PluginBase::getPluginDefinition public function Gets the definition of the plugin implementation. Overrides PluginInspectionInterface::getPluginDefinition 3
PluginBase::getPluginId public function Gets the plugin_id of the plugin instance. Overrides PluginInspectionInterface::getPluginId
PluginBase::isConfigurable public function Determines if the plugin is configurable.
PluginWithFormsTrait::getFormClass public function
PluginWithFormsTrait::hasFormClass public function
StringTranslationTrait::$stringTranslation protected property The string translation service. 1
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.
SubscriptionBlock::$currentUser protected property The current user.
SubscriptionBlock::$entityTypeManager protected property The entity type manager.
SubscriptionBlock::$formBuilder protected property The form builder.
SubscriptionBlock::$mailingListManager protected property The mailing list manager.
SubscriptionBlock::blockAccess protected function Indicates whether the block should be shown. Overrides BlockPluginTrait::blockAccess
SubscriptionBlock::blockForm public function Overrides BlockPluginTrait::blockForm
SubscriptionBlock::blockSubmit public function Overrides BlockPluginTrait::blockSubmit
SubscriptionBlock::blockValidate public function Overrides BlockPluginTrait::blockValidate
SubscriptionBlock::build public function Builds and returns the renderable array for this block plugin. Overrides BlockPluginInterface::build
SubscriptionBlock::create public static function Creates an instance of the plugin. Overrides ContainerFactoryPluginInterface::create
SubscriptionBlock::defaultConfiguration public function Overrides BlockPluginTrait::defaultConfiguration
SubscriptionBlock::__construct public function Constructs a SubscriptionBlock object. Overrides BlockPluginTrait::__construct
TypedDataTrait::$typedDataManager protected property The typed data manager used for creating the data types.
TypedDataTrait::getTypedDataManager public function Gets the typed data manager. 2
TypedDataTrait::setTypedDataManager public function Sets the typed data manager. 2