/**
* Main vote function.
*
* @param VoterInterface $voter
* @param VoteableInterface $votable
* @param int $weight
* @return Vote|null
*/
public static function store(VoterInterface $voter, VoteableInterface $voteable, $weight)
{
$vote = Vote::where('voter_id', $voter->getKey())->where('voter_type', get_class($voter))->where('voteable_id', $voter->getKey())->where('voteable_type', get_class($voteable))->first();
if (is_null($vote)) {
// Previous vote does not exist
if ($weight == 0) {
// Trying to cancel vote that does not exist
return;
}
$vote = new Vote();
$vote->voteable()->associate($voteable);
$vote->voter()->associate($voter);
}
if ($weight == 0) {
// Cancelling previous vote
$vote->delete();
return;
}
$vote->weight = $weight;
$vote->save();
return $vote;
}
/**
* Vote on resource by voter.
*
* @param VoterInterface $voter
* @param int $weight
* @return Vote|null
*/
public function voteBy(VoterInterface $voter, $weight)
{
return Vote::store($voter, $this, $weight);
}
/**
* Vote on a voteable.
*
* @param VoteableInterface $voteable
* @param int $weight
* @return Vote
*/
public function vote(VoteableInterface $voteable, $weight)
{
return Vote::store($this, $voteable, $weight);
}
