public function Generator::getSitemap in Simple XML sitemap 4.x

Returns a sitemap variant, its index, or its requested chunk.

Parameters

int|null $delta: Optional delta of the chunk.

Return value

string|null If no chunk delta is provided, either the sitemap variant is returned, or its index in case of a chunked sitemap. If a chunk delta is provided, the relevant chunk is returned. Returns null if the sitemap variant is not retrievable from the database.

File

src/Manager/Generator.php, line 108

Class

Generator

Main managing service.

Namespace

Drupal\simple_sitemap\Manager

Code

public function getSitemap(?int $delta = NULL) : ?string {

  /** @var \Drupal\simple_sitemap\Entity\SimpleSitemapInterface $sitemap */
  if (empty($variants = $this
    ->getVariants())) {
    return NULL;
  }
  $sitemap = SimpleSitemap::load(reset($variants));
  return $sitemap ? $sitemap
    ->fromPublished()
    ->toString($delta) : NULL;
}