/**
* Returns a diff between this EntityContent and the given EntityContent.
*
* @param EntityContent $toContent
*
* @return EntityContentDiff
*/
public function getDiff(EntityContent $toContent)
{
$fromContent = $this;
$differ = new MapDiffer();
$redirectDiffOps = $differ->doDiff($fromContent->getRedirectData(), $toContent->getRedirectData());
$redirectDiff = new Diff($redirectDiffOps, true);
$fromEntity = $fromContent->isRedirect() ? $this->makeEmptyEntity() : $fromContent->getEntity();
$toEntity = $toContent->isRedirect() ? $this->makeEmptyEntity() : $toContent->getEntity();
$entityDiffer = new EntityDiffer();
$entityDiff = $entityDiffer->diffEntities($fromEntity, $toEntity);
return new EntityContentDiff($entityDiff, $redirectDiff);
}
