mirror of
https://github.com/WordPress/WordPress.git
synced 2024-12-27 03:27:46 +01:00
31f51e2cbb
Sometimes, it's easy to to type the the same word twice, especially if if it's a simple word. We probably shouldn't do do do (do do do doo) it, though. (I've excluded external libs from this change.) Fixes #34885. Built from https://develop.svn.wordpress.org/trunk@35793 git-svn-id: http://core.svn.wordpress.org/trunk@35757 1a063a9b-81f0-0310-95a4-ce76da25c4cd
670 lines
19 KiB
PHP
670 lines
19 KiB
PHP
<?php
|
|
/**
|
|
* Post revision functions.
|
|
*
|
|
* @package WordPress
|
|
* @subpackage Post_Revisions
|
|
*/
|
|
|
|
/**
|
|
* Determines which fields of posts are to be saved in revisions.
|
|
*
|
|
* Does two things. If passed a post *array*, it will return a post array ready
|
|
* to be inserted into the posts table as a post revision. Otherwise, returns
|
|
* an array whose keys are the post fields to be saved for post revisions.
|
|
*
|
|
* @since 2.6.0
|
|
* @access private
|
|
*
|
|
* @staticvar array $fields
|
|
*
|
|
* @param array|null $post Optional. A post array to be processed for insertion as a post revision. Default null.
|
|
* @param bool $autosave Optional. Is the revision an autosave? Default false.
|
|
* @return array Post array ready to be inserted as a post revision or array of fields that can be versioned.
|
|
*/
|
|
function _wp_post_revision_fields( $post = null, $autosave = false ) {
|
|
static $fields = null;
|
|
|
|
if ( is_null( $fields ) ) {
|
|
// Allow these to be versioned
|
|
$fields = array(
|
|
'post_title' => __( 'Title' ),
|
|
'post_content' => __( 'Content' ),
|
|
'post_excerpt' => __( 'Excerpt' ),
|
|
);
|
|
|
|
/**
|
|
* Filter the list of fields saved in post revisions.
|
|
*
|
|
* Included by default: 'post_title', 'post_content' and 'post_excerpt'.
|
|
*
|
|
* Disallowed fields: 'ID', 'post_name', 'post_parent', 'post_date',
|
|
* 'post_date_gmt', 'post_status', 'post_type', 'comment_count',
|
|
* and 'post_author'.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param array $fields List of fields to revision. Contains 'post_title',
|
|
* 'post_content', and 'post_excerpt' by default.
|
|
*/
|
|
$fields = apply_filters( '_wp_post_revision_fields', $fields );
|
|
|
|
// WP uses these internally either in versioning or elsewhere - they cannot be versioned
|
|
foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect )
|
|
unset( $fields[$protect] );
|
|
}
|
|
|
|
if ( !is_array($post) )
|
|
return $fields;
|
|
|
|
$return = array();
|
|
foreach ( array_intersect( array_keys( $post ), array_keys( $fields ) ) as $field )
|
|
$return[$field] = $post[$field];
|
|
|
|
$return['post_parent'] = $post['ID'];
|
|
$return['post_status'] = 'inherit';
|
|
$return['post_type'] = 'revision';
|
|
$return['post_name'] = $autosave ? "$post[ID]-autosave-v1" : "$post[ID]-revision-v1"; // "1" is the revisioning system version
|
|
$return['post_date'] = isset($post['post_modified']) ? $post['post_modified'] : '';
|
|
$return['post_date_gmt'] = isset($post['post_modified_gmt']) ? $post['post_modified_gmt'] : '';
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Creates a revision for the current version of a post.
|
|
*
|
|
* Typically used immediately after a post update, as every update is a revision,
|
|
* and the most recent revision always matches the current post.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int $post_id The ID of the post to save as a revision.
|
|
* @return int|WP_Error|void Void or 0 if error, new revision ID, if success.
|
|
*/
|
|
function wp_save_post_revision( $post_id ) {
|
|
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
|
|
return;
|
|
|
|
if ( ! $post = get_post( $post_id ) )
|
|
return;
|
|
|
|
if ( ! post_type_supports( $post->post_type, 'revisions' ) )
|
|
return;
|
|
|
|
if ( 'auto-draft' == $post->post_status )
|
|
return;
|
|
|
|
if ( ! wp_revisions_enabled( $post ) )
|
|
return;
|
|
|
|
// Compare the proposed update with the last stored revision verifying that
|
|
// they are different, unless a plugin tells us to always save regardless.
|
|
// If no previous revisions, save one
|
|
if ( $revisions = wp_get_post_revisions( $post_id ) ) {
|
|
// grab the last revision, but not an autosave
|
|
foreach ( $revisions as $revision ) {
|
|
if ( false !== strpos( $revision->post_name, "{$revision->post_parent}-revision" ) ) {
|
|
$last_revision = $revision;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter whether the post has changed since the last revision.
|
|
*
|
|
* By default a revision is saved only if one of the revisioned fields has changed.
|
|
* This filter can override that so a revision is saved even if nothing has changed.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param bool $check_for_changes Whether to check for changes before saving a new revision.
|
|
* Default true.
|
|
* @param WP_Post $last_revision The last revision post object.
|
|
* @param WP_Post $post The post object.
|
|
*
|
|
*/
|
|
if ( isset( $last_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', $check_for_changes = true, $last_revision, $post ) ) {
|
|
$post_has_changed = false;
|
|
|
|
foreach ( array_keys( _wp_post_revision_fields() ) as $field ) {
|
|
if ( normalize_whitespace( $post->$field ) != normalize_whitespace( $last_revision->$field ) ) {
|
|
$post_has_changed = true;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filter whether a post has changed.
|
|
*
|
|
* By default a revision is saved only if one of the revisioned fields has changed.
|
|
* This filter allows for additional checks to determine if there were changes.
|
|
*
|
|
* @since 4.1.0
|
|
*
|
|
* @param bool $post_has_changed Whether the post has changed.
|
|
* @param WP_Post $last_revision The last revision post object.
|
|
* @param WP_Post $post The post object.
|
|
*
|
|
*/
|
|
$post_has_changed = (bool) apply_filters( 'wp_save_post_revision_post_has_changed', $post_has_changed, $last_revision, $post );
|
|
|
|
//don't save revision if post unchanged
|
|
if ( ! $post_has_changed ) {
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
$return = _wp_put_post_revision( $post );
|
|
|
|
// If a limit for the number of revisions to keep has been set,
|
|
// delete the oldest ones.
|
|
$revisions_to_keep = wp_revisions_to_keep( $post );
|
|
|
|
if ( $revisions_to_keep < 0 )
|
|
return $return;
|
|
|
|
$revisions = wp_get_post_revisions( $post_id, array( 'order' => 'ASC' ) );
|
|
|
|
$delete = count($revisions) - $revisions_to_keep;
|
|
|
|
if ( $delete < 1 )
|
|
return $return;
|
|
|
|
$revisions = array_slice( $revisions, 0, $delete );
|
|
|
|
for ( $i = 0; isset( $revisions[$i] ); $i++ ) {
|
|
if ( false !== strpos( $revisions[ $i ]->post_name, 'autosave' ) )
|
|
continue;
|
|
|
|
wp_delete_post_revision( $revisions[ $i ]->ID );
|
|
}
|
|
|
|
return $return;
|
|
}
|
|
|
|
/**
|
|
* Retrieve the autosaved data of the specified post.
|
|
*
|
|
* Returns a post object containing the information that was autosaved for the
|
|
* specified post. If the optional $user_id is passed, returns the autosave for that user
|
|
* otherwise returns the latest autosave.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int $post_id The post ID.
|
|
* @param int $user_id Optional The post author ID.
|
|
* @return WP_Post|false The autosaved data or false on failure or when no autosave exists.
|
|
*/
|
|
function wp_get_post_autosave( $post_id, $user_id = 0 ) {
|
|
$revisions = wp_get_post_revisions( $post_id, array( 'check_enabled' => false ) );
|
|
|
|
foreach ( $revisions as $revision ) {
|
|
if ( false !== strpos( $revision->post_name, "{$post_id}-autosave" ) ) {
|
|
if ( $user_id && $user_id != $revision->post_author )
|
|
continue;
|
|
|
|
return $revision;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Determines if the specified post is a revision.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|WP_Post $post Post ID or post object.
|
|
* @return false|int False if not a revision, ID of revision's parent otherwise.
|
|
*/
|
|
function wp_is_post_revision( $post ) {
|
|
if ( !$post = wp_get_post_revision( $post ) )
|
|
return false;
|
|
|
|
return (int) $post->post_parent;
|
|
}
|
|
|
|
/**
|
|
* Determines if the specified post is an autosave.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|WP_Post $post Post ID or post object.
|
|
* @return false|int False if not a revision, ID of autosave's parent otherwise
|
|
*/
|
|
function wp_is_post_autosave( $post ) {
|
|
if ( !$post = wp_get_post_revision( $post ) )
|
|
return false;
|
|
|
|
if ( false !== strpos( $post->post_name, "{$post->post_parent}-autosave" ) )
|
|
return (int) $post->post_parent;
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Inserts post data into the posts table as a post revision.
|
|
*
|
|
* @since 2.6.0
|
|
* @access private
|
|
*
|
|
* @param int|WP_Post|array|null $post Post ID, post object OR post array.
|
|
* @param bool $autosave Optional. Is the revision an autosave?
|
|
* @return int|WP_Error WP_Error or 0 if error, new revision ID if success.
|
|
*/
|
|
function _wp_put_post_revision( $post = null, $autosave = false ) {
|
|
if ( is_object($post) )
|
|
$post = get_object_vars( $post );
|
|
elseif ( !is_array($post) )
|
|
$post = get_post($post, ARRAY_A);
|
|
|
|
if ( ! $post || empty($post['ID']) )
|
|
return new WP_Error( 'invalid_post', __( 'Invalid post ID.' ) );
|
|
|
|
if ( isset($post['post_type']) && 'revision' == $post['post_type'] )
|
|
return new WP_Error( 'post_type', __( 'Cannot create a revision of a revision' ) );
|
|
|
|
$post = _wp_post_revision_fields( $post, $autosave );
|
|
$post = wp_slash($post); //since data is from db
|
|
|
|
$revision_id = wp_insert_post( $post );
|
|
if ( is_wp_error($revision_id) )
|
|
return $revision_id;
|
|
|
|
if ( $revision_id ) {
|
|
/**
|
|
* Fires once a revision has been saved.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int $revision_id Post revision ID.
|
|
*/
|
|
do_action( '_wp_put_post_revision', $revision_id );
|
|
}
|
|
|
|
return $revision_id;
|
|
}
|
|
|
|
/**
|
|
* Gets a post revision.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|WP_Post $post The post ID or object.
|
|
* @param string $output Optional. OBJECT, ARRAY_A, or ARRAY_N.
|
|
* @param string $filter Optional sanitation filter. @see sanitize_post().
|
|
* @return WP_Post|array|null Null if error or post object if success.
|
|
*/
|
|
function wp_get_post_revision(&$post, $output = OBJECT, $filter = 'raw') {
|
|
if ( !$revision = get_post( $post, OBJECT, $filter ) )
|
|
return $revision;
|
|
if ( 'revision' !== $revision->post_type )
|
|
return null;
|
|
|
|
if ( $output == OBJECT ) {
|
|
return $revision;
|
|
} elseif ( $output == ARRAY_A ) {
|
|
$_revision = get_object_vars($revision);
|
|
return $_revision;
|
|
} elseif ( $output == ARRAY_N ) {
|
|
$_revision = array_values(get_object_vars($revision));
|
|
return $_revision;
|
|
}
|
|
|
|
return $revision;
|
|
}
|
|
|
|
/**
|
|
* Restores a post to the specified revision.
|
|
*
|
|
* Can restore a past revision using all fields of the post revision, or only selected fields.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|WP_Post $revision_id Revision ID or revision object.
|
|
* @param array $fields Optional. What fields to restore from. Defaults to all.
|
|
* @return int|false|null Null if error, false if no fields to restore, (int) post ID if success.
|
|
*/
|
|
function wp_restore_post_revision( $revision_id, $fields = null ) {
|
|
if ( !$revision = wp_get_post_revision( $revision_id, ARRAY_A ) )
|
|
return $revision;
|
|
|
|
if ( !is_array( $fields ) )
|
|
$fields = array_keys( _wp_post_revision_fields() );
|
|
|
|
$update = array();
|
|
foreach ( array_intersect( array_keys( $revision ), $fields ) as $field ) {
|
|
$update[$field] = $revision[$field];
|
|
}
|
|
|
|
if ( !$update )
|
|
return false;
|
|
|
|
$update['ID'] = $revision['post_parent'];
|
|
|
|
$update = wp_slash( $update ); //since data is from db
|
|
|
|
$post_id = wp_update_post( $update );
|
|
if ( ! $post_id || is_wp_error( $post_id ) )
|
|
return $post_id;
|
|
|
|
// Add restore from details
|
|
$restore_details = array(
|
|
'restored_revision_id' => $revision_id,
|
|
'restored_by_user' => get_current_user_id(),
|
|
'restored_time' => time()
|
|
);
|
|
update_post_meta( $post_id, '_post_restored_from', $restore_details );
|
|
|
|
// Update last edit user
|
|
update_post_meta( $post_id, '_edit_last', get_current_user_id() );
|
|
|
|
/**
|
|
* Fires after a post revision has been restored.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int $post_id Post ID.
|
|
* @param int $revision_id Post revision ID.
|
|
*/
|
|
do_action( 'wp_restore_post_revision', $post_id, $revision['ID'] );
|
|
|
|
return $post_id;
|
|
}
|
|
|
|
/**
|
|
* Deletes a revision.
|
|
*
|
|
* Deletes the row from the posts table corresponding to the specified revision.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|WP_Post $revision_id Revision ID or revision object.
|
|
* @return array|false|WP_Post|WP_Error|null Null or WP_Error if error, deleted post if success.
|
|
*/
|
|
function wp_delete_post_revision( $revision_id ) {
|
|
if ( ! $revision = wp_get_post_revision( $revision_id ) ) {
|
|
return $revision;
|
|
}
|
|
|
|
$delete = wp_delete_post( $revision->ID );
|
|
if ( $delete ) {
|
|
/**
|
|
* Fires once a post revision has been deleted.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int $revision_id Post revision ID.
|
|
* @param object|array $revision Post revision object or array.
|
|
*/
|
|
do_action( 'wp_delete_post_revision', $revision->ID, $revision );
|
|
}
|
|
|
|
return $delete;
|
|
}
|
|
|
|
/**
|
|
* Returns all revisions of specified post.
|
|
*
|
|
* @since 2.6.0
|
|
*
|
|
* @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
|
|
* @return array An array of revisions, or an empty array if none.
|
|
*/
|
|
function wp_get_post_revisions( $post_id = 0, $args = null ) {
|
|
$post = get_post( $post_id );
|
|
if ( ! $post || empty( $post->ID ) )
|
|
return array();
|
|
|
|
$defaults = array( 'order' => 'DESC', 'orderby' => 'date ID', 'check_enabled' => true );
|
|
$args = wp_parse_args( $args, $defaults );
|
|
|
|
if ( $args['check_enabled'] && ! wp_revisions_enabled( $post ) )
|
|
return array();
|
|
|
|
$args = array_merge( $args, array( 'post_parent' => $post->ID, 'post_type' => 'revision', 'post_status' => 'inherit' ) );
|
|
|
|
if ( ! $revisions = get_children( $args ) )
|
|
return array();
|
|
|
|
return $revisions;
|
|
}
|
|
|
|
/**
|
|
* Determine if revisions are enabled for a given post.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param WP_Post $post The post object.
|
|
* @return bool True if number of revisions to keep isn't zero, false otherwise.
|
|
*/
|
|
function wp_revisions_enabled( $post ) {
|
|
return wp_revisions_to_keep( $post ) !== 0;
|
|
}
|
|
|
|
/**
|
|
* Determine how many revisions to retain for a given post.
|
|
*
|
|
* By default, an infinite number of revisions are kept.
|
|
*
|
|
* The constant WP_POST_REVISIONS can be set in wp-config to specify the limit
|
|
* of revisions to keep.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param WP_Post $post The post object.
|
|
* @return int The number of revisions to keep.
|
|
*/
|
|
function wp_revisions_to_keep( $post ) {
|
|
$num = WP_POST_REVISIONS;
|
|
|
|
if ( true === $num )
|
|
$num = -1;
|
|
else
|
|
$num = intval( $num );
|
|
|
|
if ( ! post_type_supports( $post->post_type, 'revisions' ) )
|
|
$num = 0;
|
|
|
|
/**
|
|
* Filter the number of revisions to save for the given post.
|
|
*
|
|
* Overrides the value of WP_POST_REVISIONS.
|
|
*
|
|
* @since 3.6.0
|
|
*
|
|
* @param int $num Number of revisions to store.
|
|
* @param WP_Post $post Post object.
|
|
*/
|
|
return (int) apply_filters( 'wp_revisions_to_keep', $num, $post );
|
|
}
|
|
|
|
/**
|
|
* Sets up the post object for preview based on the post autosave.
|
|
*
|
|
* @since 2.7.0
|
|
* @access private
|
|
*
|
|
* @param WP_Post $post
|
|
* @return WP_Post|false
|
|
*/
|
|
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 );
|
|
|
|
return $post;
|
|
}
|
|
|
|
/**
|
|
* Filters the latest content for preview from the post autosave.
|
|
*
|
|
* @since 2.7.0
|
|
* @access private
|
|
*/
|
|
function _show_post_preview() {
|
|
if ( isset($_GET['preview_id']) && isset($_GET['preview_nonce']) ) {
|
|
$id = (int) $_GET['preview_id'];
|
|
|
|
if ( false === wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . $id ) )
|
|
wp_die( __('You do not have permission to preview drafts.') );
|
|
|
|
add_filter('the_preview', '_set_preview');
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Filters terms lookup to set the post format.
|
|
*
|
|
* @since 3.6.0
|
|
* @access private
|
|
*
|
|
* @param array $terms
|
|
* @param int $post_id
|
|
* @param string $taxonomy
|
|
* @return array
|
|
*/
|
|
function _wp_preview_terms_filter( $terms, $post_id, $taxonomy ) {
|
|
if ( ! $post = get_post() )
|
|
return $terms;
|
|
|
|
if ( empty( $_REQUEST['post_format'] ) || $post->ID != $post_id || 'post_format' != $taxonomy || 'revision' == $post->post_type )
|
|
return $terms;
|
|
|
|
if ( 'standard' == $_REQUEST['post_format'] )
|
|
$terms = array();
|
|
elseif ( $term = get_term_by( 'slug', 'post-format-' . sanitize_key( $_REQUEST['post_format'] ), 'post_format' ) )
|
|
$terms = array( $term ); // Can only have one post format
|
|
|
|
return $terms;
|
|
}
|
|
|
|
/**
|
|
* Gets the post revision version.
|
|
*
|
|
* @since 3.6.0
|
|
* @access private
|
|
*
|
|
* @param WP_Post $revision
|
|
* @return int|false
|
|
*/
|
|
function _wp_get_post_revision_version( $revision ) {
|
|
if ( is_object( $revision ) )
|
|
$revision = get_object_vars( $revision );
|
|
elseif ( !is_array( $revision ) )
|
|
return false;
|
|
|
|
if ( preg_match( '/^\d+-(?:autosave|revision)-v(\d+)$/', $revision['post_name'], $matches ) )
|
|
return (int) $matches[1];
|
|
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Upgrade the revisions author, add the current post as a revision and set the revisions version to 1
|
|
*
|
|
* @since 3.6.0
|
|
* @access private
|
|
*
|
|
* @global wpdb $wpdb WordPress database abstraction object.
|
|
*
|
|
* @param WP_Post $post Post object
|
|
* @param array $revisions Current revisions of the post
|
|
* @return bool true if the revisions were upgraded, false if problems
|
|
*/
|
|
function _wp_upgrade_revisions_of_post( $post, $revisions ) {
|
|
global $wpdb;
|
|
|
|
// Add post option exclusively
|
|
$lock = "revision-upgrade-{$post->ID}";
|
|
$now = time();
|
|
$result = $wpdb->query( $wpdb->prepare( "INSERT IGNORE INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, 'no') /* LOCK */", $lock, $now ) );
|
|
if ( ! $result ) {
|
|
// If we couldn't get a lock, see how old the previous lock is
|
|
$locked = get_option( $lock );
|
|
if ( ! $locked ) {
|
|
// Can't write to the lock, and can't read the lock.
|
|
// Something broken has happened
|
|
return false;
|
|
}
|
|
|
|
if ( $locked > $now - 3600 ) {
|
|
// Lock is not too old: some other process may be upgrading this post. Bail.
|
|
return false;
|
|
}
|
|
|
|
// Lock is too old - update it (below) and continue
|
|
}
|
|
|
|
// If we could get a lock, re-"add" the option to fire all the correct filters.
|
|
update_option( $lock, $now );
|
|
|
|
reset( $revisions );
|
|
$add_last = true;
|
|
|
|
do {
|
|
$this_revision = current( $revisions );
|
|
$prev_revision = next( $revisions );
|
|
|
|
$this_revision_version = _wp_get_post_revision_version( $this_revision );
|
|
|
|
// Something terrible happened
|
|
if ( false === $this_revision_version )
|
|
continue;
|
|
|
|
// 1 is the latest revision version, so we're already up to date.
|
|
// No need to add a copy of the post as latest revision.
|
|
if ( 0 < $this_revision_version ) {
|
|
$add_last = false;
|
|
continue;
|
|
}
|
|
|
|
// Always update the revision version
|
|
$update = array(
|
|
'post_name' => preg_replace( '/^(\d+-(?:autosave|revision))[\d-]*$/', '$1-v1', $this_revision->post_name ),
|
|
);
|
|
|
|
// If this revision is the oldest revision of the post, i.e. no $prev_revision,
|
|
// the correct post_author is probably $post->post_author, but that's only a good guess.
|
|
// Update the revision version only and Leave the author as-is.
|
|
if ( $prev_revision ) {
|
|
$prev_revision_version = _wp_get_post_revision_version( $prev_revision );
|
|
|
|
// If the previous revision is already up to date, it no longer has the information we need :(
|
|
if ( $prev_revision_version < 1 )
|
|
$update['post_author'] = $prev_revision->post_author;
|
|
}
|
|
|
|
// Upgrade this revision
|
|
$result = $wpdb->update( $wpdb->posts, $update, array( 'ID' => $this_revision->ID ) );
|
|
|
|
if ( $result )
|
|
wp_cache_delete( $this_revision->ID, 'posts' );
|
|
|
|
} while ( $prev_revision );
|
|
|
|
delete_option( $lock );
|
|
|
|
// Add a copy of the post as latest revision.
|
|
if ( $add_last )
|
|
wp_save_post_revision( $post->ID );
|
|
|
|
return true;
|
|
}
|