public function HelpBlock::build in Zircon Profile 8

Same name and namespace in other branches

1. 8.0 core/modules/help/src/Plugin/Block/HelpBlock.php \Drupal\help\Plugin\Block\HelpBlock::build()

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/help/src/Plugin/Block/HelpBlock.php, line 106

Contains \Drupal\help\Plugin\Block\HelpBlock.

Class

HelpBlock

Provides a 'Help' block.

Namespace

Drupal\help\Plugin\Block

Code

public function build() {
  $help = $this
    ->getActiveHelp($this->request);
  if (!$help) {
    return [];
  }
  else {
    return [
      '#children' => $help,
    ];
  }
}