public function NodeContextTestBlock::build in Drupal 9

Builds and returns the renderable array for this block plugin.

If a block should not be rendered because it has no content, then this method must also ensure to return no content: it must then only return an empty array, or an empty array with #cache set (with cacheability metadata indicating the circumstances for it being empty).

Return value

array A renderable array representing the content of the block.

Overrides BlockPluginInterface::build

See also

\Drupal\block\BlockViewBuilder

File

core/modules/node/tests/modules/node_block_test/src/Plugin/Block/NodeContextTestBlock.php, line 23

Class

NodeContextTestBlock

Provides a 'Node Context Test' block.

Namespace

Drupal\node_block_test\Plugin\Block

Code

public function build() {

  /** @var \Drupal\node\NodeInterface $node */
  $node = $this
    ->getContextValue('node');
  return [
    '#type' => 'inline_template',
    '#template' => 'Displaying node #{{ id }}, revision #{{ revision_id }}: {{ title }}',
    '#context' => [
      'id' => $node
        ->id(),
      'revision_id' => $node
        ->getRevisionId(),
      'title' => $node
        ->label(),
    ],
  ];
}