This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

_set_preview( WP_Post $post )

Sets up the post object for preview based on the post autosave.

Parameters

$post: (Required)

Return

(WP_Post|false)

Source

File: wp-includes/revision.php

function _set_preview( $post ) {
	if ( ! is_object( $post ) ) {
		return $post;
	}

	$preview = wp_get_post_autosave( $post->ID );
	if ( ! is_object( $preview ) ) {
		return $post;
	}

	$preview = sanitize_post( $preview );

	$post->post_content = $preview->post_content;
	$post->post_title = $preview->post_title;
	$post->post_excerpt = $preview->post_excerpt;

	add_filter( 'get_the_terms', '_wp_preview_terms_filter', 10, 3 );
	add_filter( 'get_post_metadata', '_wp_preview_post_thumbnail_filter', 10, 3 );

	return $post;
}

Expand Source Code View on GitHub

Uses

Uses
Uses	Description
wp-includes/plugin.php: add_filter()	Hook a function or method to a specific filter action.
wp-includes/post.php: sanitize_post()	Sanitize every post field.
wp-includes/revision.php: wp_get_post_autosave()	Retrieve the autosaved data of the specified post.

Changelog

Changelog
Version	Description
WP-2.7.0	Introduced.