Comments cannot be created in scheduled posts

[Hixon10]

1) I create a planned post.
2) I open this planned post.
3) I add, using commenting form, some comment.
4) I submit this form.
5) I see white screen (usually, this screen appear, when some bug happens).

[socki03]

I was able to replicate, but it doesn't seem to be a bug. The post status object that gets returned has public and private set to false, which triggers this:

} elseif ( ! $status_obj->public && ! $status_obj->private ) {
	/**
	 * Fires when a comment is attempted on a post in draft mode.
	 *
	 * @since 1.5.1
	 *
	 * @param int $comment_post_ID Post ID.
	 */
	do_action( 'comment_on_draft', $comment_post_ID );
	exit;
}

It appears to be intentional, or at least intentional in the case of posting a comment to a draft (or in this instance, scheduled).

The action has nothing else built onto it in the core to handle it, so you see a white screen due to the exit.

[Hixon10]

Am I right, that I (or other developers) have to implement comment_on_draft action, which will be adding comment to DB?

[socki03]

Yeah, it seems to me (but I'm pretty new at this core work) that you need to explicitly add an action to process the comment since the post isn't published/private.

I could only find this post on stackoverflow: ​http://wordpress.stackexchange.com/questions/121001/enable-commenting-on-front-end-preview-page-for-pending-posts

[Hixon10]

Thank you for the link.

[voldemortensen]

Logically it makes sense to let anyone with the 'edit_posts' capability to make a comment on their own post. Especially since logged in users can see draft posts. 30091.diff fixes this issue. It allows anyone with the 'edit_posts' capability to make comments on scheduled posts. If the current user isn't logged in, this post returns a 404 error anyway.

[johnbillion]

Duplicate of #19739.