请问一下 $this->followings () 和 $this->followings 的区别?
public function unfollow($user_ids)
{
if (!is_array($user_ids)) {
$user_ids = compact('user_ids');
}
$this->followings()->detach($user_ids);
}
public function isFollowing($user_id)
{
return $this->followings->contains($user_id);
}
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