class SystemMessagesBlock

Same name in other branches
  1. 9 core/modules/system/src/Plugin/Block/SystemMessagesBlock.php \Drupal\system\Plugin\Block\SystemMessagesBlock
  2. 10 core/modules/system/src/Plugin/Block/SystemMessagesBlock.php \Drupal\system\Plugin\Block\SystemMessagesBlock
  3. 11.x core/modules/system/src/Plugin/Block/SystemMessagesBlock.php \Drupal\system\Plugin\Block\SystemMessagesBlock

Provides a block to display the messages.

Plugin annotation


@Block(
  id = "system_messages_block",
  admin_label = @Translation("Messages")
)

Hierarchy

Expanded class hierarchy of SystemMessagesBlock

See also

@see \Drupal\Core\Messenger\MessengerInterface

File

core/modules/system/src/Plugin/Block/SystemMessagesBlock.php, line 19

Namespace

Drupal\system\Plugin\Block
View source
class SystemMessagesBlock extends BlockBase implements MessagesBlockPluginInterface {
    
    /**
     * {@inheritdoc}
     */
    public function defaultConfiguration() {
        return [
            'label_display' => FALSE,
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function build() {
        return [
            '#type' => 'status_messages',
            '#include_fallback' => TRUE,
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheMaxAge() {
        // The messages are session-specific and hence aren't cacheable, but the
        // block itself *is* cacheable because it uses a #lazy_builder callback and
        // hence the block has a globally cacheable render array.
        return Cache::PERMANENT;
    }

}

Members

Title Sort descending Modifiers Object type Summary
SystemMessagesBlock::build public function
SystemMessagesBlock::defaultConfiguration public function
SystemMessagesBlock::getCacheMaxAge public function

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