private function getComments()
{
$collection = collect();
$messages = $this->message->where('fb_post_id', '!=', '')->get();
$answers = $this->answer->where('fb_post_id', '!=', '')->get();
$reactions = $this->reaction->where('fb_post_id', '!=', '')->get();
foreach ($messages as $key => $message) {
$collection->push($message);
}
foreach ($answers as $key => $answer) {
$collection->push($answer);
}
foreach ($reactions as $key => $reaction) {
$collection->push($reaction);
}
return $collection;
}