protected function updateLast($comment, $oldRevisionId, $newRevisionId, $diffFieldName, $entity, CommentInterface $lastComment)
{
// If there is a new revision of the host entity, update it on the comment
if (!empty($newRevisionId)) {
// If the last comment did not store changes, store the current revisions pair
if (empty($lastComment->{$diffFieldName}->right_rid)) {
$lastComment->{$diffFieldName}->setValue([['left_rid' => $oldRevisionId, 'right_rid' => $newRevisionId]]);
} else {
$changes = $lastComment->{$diffFieldName}->getValue();
$changes[0]['right_rid'] = $newRevisionId;
$lastComment->{$diffFieldName}->setValue($changes);
}
}
// Overwrite the old subject only if it was a change record.
if ($lastComment->subject->value === 'Change Record') {
$lastComment->setSubject($comment['subject']);
}
// Set all fields for which data has been passed
// and there is no saved value
foreach ($comment as $name => $value) {
if (!isset($lastComment->{$name}->value)) {
if (is_array($value)) {
$lastComment->{$name}->setValue($value);
} else {
$lastComment->{$name}->value = $value;
}
}
}
$lastComment->setChangedTime(REQUEST_TIME);
$lastComment->save();
}
