public function WebformAnalysisBlock::build in Webform Analysis 8

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

src/Plugin/Block/WebformAnalysisBlock.php, line 152

Class

WebformAnalysisBlock

Provides a 'Webform' block.

Namespace

Drupal\webform_analysis\Plugin\Block

Code

public function build() {
  $build = [];
  $entity_id = $this->configuration['entity_id'];
  $entity = $this->entityTypeManager
    ->getStorage(static::elementEntityTypeId())
    ->load($entity_id);
  if (!$entity) {
    return $build;
  }
  $chart = new WebformAnalysisChart($entity, [
    $this->configuration['component'],
  ], $this->configuration['chart_type']);
  $chart
    ->build($build);
  return $build;
}