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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 3455 | } elseif ( ! $status_obj->public && ! $status_obj->private ) { |
| 3456 | |
| 3457 | /** |
| 3458 | * Fires when a comment is attempted on a post in draft mode. |
| 3459 | * |
| 3460 | * @since 1.5.1 |
| 3461 | * |
| 3462 | * @param int $comment_post_ID Post ID. |
| 3463 | */ |
| 3464 | do_action( 'comment_on_draft', $comment_post_ID ); |
| 3465 | |
| 3466 | if ( current_user_can( 'read_post', $comment_post_ID ) ) { |
| 3467 | return new WP_Error( 'comment_on_draft', __( 'Sorry, comments are not allowed for this item.' ), 403 ); |
| 3468 | } else { |
| 3469 | return new WP_Error( 'comment_on_draft' ); |
| 3470 | } |
| 3471 | } elseif ( post_password_required( $comment_post_ID ) ) { |
| 3472 | |
| 3473 | /** |