function AnnounceFetcher::fetch

Same name in other branches
  1. 10 core/modules/announcements_feed/src/AnnounceFetcher.php \Drupal\announcements_feed\AnnounceFetcher::fetch()

Fetches the feed either from a local cache or fresh remotely.

The feed follows the "JSON Feed" format:

The structure of an announcement item in the feed is:

  • id: Id.
  • title: Title of the announcement.
  • content_html: Announcement teaser.
  • url: URL
  • date_modified: Last updated timestamp.
  • date_published: Created timestamp.
  • _drupalorg.featured: 1 if featured, 0 if not featured.
  • _drupalorg.version: Target version of Drupal, as a Composer version.

Parameters

bool $force: (optional) Whether to always fetch new items or not. Defaults to FALSE.

Return value

\Drupal\announcements_feed\Announcement[] An array of announcements from the feed relevant to the Drupal version. The array is empty if there were no matching announcements. If an error occurred while fetching/decoding the feed, it is thrown as an exception.

Throws

\Exception

1 call to AnnounceFetcher::fetch()
AnnounceFetcher::fetchIds in core/modules/announcements_feed/src/AnnounceFetcher.php
Fetch ids of announcements.

File

core/modules/announcements_feed/src/AnnounceFetcher.php, line 132

Class

AnnounceFetcher
Service to fetch announcements from the external feed.

Namespace

Drupal\announcements_feed

Code

public function fetch(bool $force = FALSE) : array {
    $announcements = $this->tempStore
        ->get('announcements');
    if ($force || $announcements === NULL) {
        try {
            $feed_content = (string) $this->httpClient
                ->get($this->feedUrl)
                ->getBody();
        } catch (\Exception $e) {
            $this->logger
                ->error(Error::DEFAULT_ERROR_MESSAGE, Error::decodeException($e));
            throw $e;
        }
        $announcements = Json::decode($feed_content);
        if (!isset($announcements['items'])) {
            $this->logger
                ->error('The feed format is not valid.');
            throw new \Exception('Invalid format');
        }
        $announcements = $announcements['items'] ?? [];
        // Ensure that announcements reference drupal.org and are applicable to
        // the current Drupal version.
        $announcements = array_filter($announcements, function (array $announcement) {
            return static::validateUrl($announcement['url'] ?? '') && static::isRelevantItem($announcement['_drupalorg']['version'] ?? '');
        });
        // Save the raw decoded and filtered array to temp store.
        $this->tempStore
            ->setWithExpire('announcements', $announcements, $this->config
            ->get('max_age'));
    }
    // The drupal.org endpoint is sorted by created date in descending order.
    // We will limit the announcements based on the configuration limit.
    $announcements = array_slice($announcements, 0, $this->config
        ->get('limit') ?? 10);
    // For the remaining announcements, put all the featured announcements
    // before the rest.
    uasort($announcements, function ($a, $b) {
        $a_value = (int) $a['_drupalorg']['featured'];
        $b_value = (int) $b['_drupalorg']['featured'];
        if ($a_value == $b_value) {
            return 0;
        }
        return $a_value < $b_value ? -1 : 1;
    });
    // Map the multidimensional array into an array of Announcement objects.
    $announcements = array_map(function ($announcement) {
        return new Announcement($announcement['id'], $announcement['title'], $announcement['url'], $announcement['date_modified'], $announcement['date_published'], $announcement['content_html'], $announcement['_drupalorg']['version'], (bool) $announcement['_drupalorg']['featured']);
    }, $announcements);
    return $announcements;
}

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