/**
* {@inheritdoc}
*/
public function evaluate()
{
$allowed_facet_value = $this->configuration['facet_value'];
$allowed_facets = $this->configuration['facets'];
// Return as early as possible when there are no settings for allowed
// facets.
if (empty($allowed_facets)) {
return TRUE;
}
/** @var \Drupal\facets\Plugin\Block\FacetBlock $block_plugin */
$block_plugin = $this->blockManager->createInstance($allowed_facets);
// Allowed facet value is not set, so we only have to check if the block is
// shown here by running the access method on the block plugin with the
// currently logged in user.
if (empty($allowed_facet_value)) {
return $block_plugin->access($this->currentUser);
}
// The block plugin id is saved in the schema: BasePluginID:FacetID. This
// means we can explode the ID on ':' and the facet id is in the last part
// of that result.
$block_plugin_id = $block_plugin->getPluginId();
$facet_id = explode(PluginBase::DERIVATIVE_SEPARATOR, $block_plugin_id)[1];
/** @var \Drupal\facets\FacetInterface $facet */
$facet = $this->facetStorage->load($facet_id);
$facet = $this->facetManager->returnProcessedFacet($facet);
foreach ($facet->getResults() as $result) {
$is_value = $result->getRawValue() == $allowed_facet_value || $result->getDisplayValue() == $allowed_facet_value;
if ($is_value && $result->isActive()) {
return TRUE;
}
}
return FALSE;
}