public function handle($command)
{
$user = $command->user;
// Make sure the user has permission to reply to this discussion. First,
// make sure the discussion exists and that the user has permission to
// view it; if not, fail with a ModelNotFound exception so we don't give
// away the existence of the discussion. If the user is allowed to view
// it, check if they have permission to reply.
$discussion = $this->discussions->findOrFail($command->discussionId, $user);
$discussion->assertCan($user, 'reply');
// Create a new Post entity, persist it, and dispatch domain events.
// Before persistance, though, fire an event to give plugins an
// opportunity to alter the post entity based on data in the command.
$post = CommentPost::reply($command->discussionId, array_get($command->data, 'content'), $user->id);
event(new PostWillBeSaved($post, $command));
$post->save();
$this->notifications->onePerUser(function () use($post) {
$this->dispatchEventsFor($post);
});
return $post;
}