protected function getRevisionDescription(ContentEntityInterface $revision, $is_current = FALSE)
{
/** @var \Drupal\Core\Entity\ContentEntityInterface|\Drupal\user\EntityOwnerInterface $revision */
if ($revision instanceof EntityOwnerInterface) {
$username = ['#theme' => 'username', '#account' => $revision->getOwner()];
} else {
$username = '';
}
if ($revision instanceof ExpandedEntityRevisionInterface) {
// Use revision link to link to revisions that are not active.
$date = $this->dateFormatter()->format($revision->getRevisionCreationTime(), 'short');
if (!$is_current) {
$link = $this->l($date, $revision->urlInfo('revision'));
} else {
$link = $revision->link($date);
}
} else {
$link = $revision->link($revision->label(), 'revision');
}
$markup = '';
if ($revision instanceof EntityRevisionLogInterface) {
$markup = $revision->getRevisionLog();
}
if ($username) {
$template = '{% trans %}{{ date }} by {{ username }}{% endtrans %}{% if message %}<p class="revision-log">{{ message }}</p>{% endif %}';
} else {
$template = '{% trans %} {{ date }} {% endtrans %}{% if message %}<p class="revision-log">{{ message }}</p>{% endif %}';
}
$column = ['data' => ['#type' => 'inline_template', '#template' => $template, '#context' => ['date' => $link, 'username' => $this->renderer()->renderPlain($username), 'message' => ['#markup' => $markup, '#allowed_tags' => Xss::getHtmlTagList()]]]];
return $column;
}