post_preview()
Saves a draft or manually autosaves for the purpose of showing a post preview.
Description Description
Return Return
(string) URL to redirect to show the preview.
Source Source
File: wp-admin/includes/post.php
function post_preview() { $post_ID = (int) $_POST['post_ID']; $_POST['ID'] = $post_ID; if ( ! $post = get_post( $post_ID ) ) { wp_die( __( 'Sorry, you are not allowed to edit this post.' ) ); } if ( ! current_user_can( 'edit_post', $post->ID ) ) { wp_die( __( 'Sorry, you are not allowed to edit this post.' ) ); } $is_autosave = false; if ( ! wp_check_post_lock( $post->ID ) && get_current_user_id() == $post->post_author && ( 'draft' == $post->post_status || 'auto-draft' == $post->post_status ) ) { $saved_post_id = edit_post(); } else { $is_autosave = true; if ( isset( $_POST['post_status'] ) && 'auto-draft' == $_POST['post_status'] ) { $_POST['post_status'] = 'draft'; } $saved_post_id = wp_create_post_autosave( $post->ID ); } if ( is_wp_error( $saved_post_id ) ) { wp_die( $saved_post_id->get_error_message() ); } $query_args = array(); if ( $is_autosave && $saved_post_id ) { $query_args['preview_id'] = $post->ID; $query_args['preview_nonce'] = wp_create_nonce( 'post_preview_' . $post->ID ); if ( isset( $_POST['post_format'] ) ) { $query_args['post_format'] = empty( $_POST['post_format'] ) ? 'standard' : sanitize_key( $_POST['post_format'] ); } if ( isset( $_POST['_thumbnail_id'] ) ) { $query_args['_thumbnail_id'] = ( intval( $_POST['_thumbnail_id'] ) <= 0 ) ? '-1' : intval( $_POST['_thumbnail_id'] ); } } return get_preview_post_link( $post, $query_args ); }
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Changelog Changelog
Version | Description |
---|---|
2.7.0 | Introduced. |