Builds and returns the renderable array for this block plugin.
array A renderable array representing the content of the block.
Overrides BlockPluginInterface::build
\Drupal\block\BlockRenderController
public function build() {
$query = db_select('forum_index', 'f')
->fields('f')
->addTag('node_access')
->addMetaData('base_table', 'forum_index')
->orderBy('f.created', 'DESC')
->range(0, $this->configuration['block_count']);
return array(
drupal_render_cache_by_query($query, 'forum_block_view'),
);
}