/**
* Filter by tag
*
* @param Relations\HasMany $query
* @param string $tags
*
* @return void
*/
public function filterTags(Relations\HasMany $query, $tags)
{
if (!empty($tags)) {
$tagIds = array_map('trim', explode(',', $tags));
$query->whereHas('tags', function (Eloquent\Builder $query) use($tagIds) {
$query->whereIn('id', $tagIds);
});
}
}