public function SitemapGenerator::generateSitemapIndex in Simple XML sitemap 8.2

Generates and returns the sitemap index for all sitemap chunks.

Parameters

array $chunk_info: Array containing chunk creation timestamps keyed by chunk ID.

Return value

string sitemap index

File

src/SitemapGenerator.php, line 155

Class

SitemapGenerator

Class SitemapGenerator @package Drupal\simple_sitemap

Namespace

Drupal\simple_sitemap

Code

public function generateSitemapIndex(array $chunk_info) {
  $this->writer
    ->openMemory();
  $this->writer
    ->setIndent(TRUE);
  $this->writer
    ->startDocument(self::XML_VERSION, self::ENCODING);
  $this->writer
    ->writeComment(self::GENERATED_BY);
  $this->writer
    ->startElement('sitemapindex');

  // Add attributes to document.
  $this->moduleHandler
    ->alter('simple_sitemap_index_attributes', self::$indexAttributes);
  foreach (self::$indexAttributes as $name => $value) {
    $this->writer
      ->writeAttribute($name, $value);
  }

  // Add sitemap locations to document.
  foreach ($chunk_info as $chunk_id => $chunk_data) {
    $this->writer
      ->startElement('sitemap');
    $this->writer
      ->writeElement('loc', $this
      ->getCustomBaseUrl() . '/sitemaps/' . $chunk_id . '/' . 'sitemap.xml');
    $this->writer
      ->writeElement('lastmod', date_iso8601($chunk_data->sitemap_created));
    $this->writer
      ->endElement();
  }
  $this->writer
    ->endElement();
  $this->writer
    ->endDocument();
  return $this->writer
    ->outputMemory();
}