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784 lines
21 KiB
784 lines
21 KiB
<?php |
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/** |
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* Post revision functions. |
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* |
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* @package WordPress |
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* @subpackage Post_Revisions |
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*/ |
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|
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/** |
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* Determines which fields of posts are to be saved in revisions. |
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* |
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* @since 2.6.0 |
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* @since 4.5.0 A `WP_Post` object can now be passed to the `$post` parameter. |
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* @since 4.5.0 The optional `$autosave` parameter was deprecated and renamed to `$deprecated`. |
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* @access private |
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* |
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* @staticvar array $fields |
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* |
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* @param array|WP_Post $post Optional. A post array or a WP_Post object being processed |
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* for insertion as a post revision. Default empty array. |
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* @param bool $deprecated Not used. |
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* @return array Array of fields that can be versioned. |
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*/ |
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function _wp_post_revision_fields( $post = array(), $deprecated = false ) { |
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static $fields = null; |
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|
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if ( ! is_array( $post ) ) { |
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$post = get_post( $post, ARRAY_A ); |
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} |
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|
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if ( is_null( $fields ) ) { |
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// Allow these to be versioned |
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$fields = array( |
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'post_title' => __( 'Title' ), |
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'post_content' => __( 'Content' ), |
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'post_excerpt' => __( 'Excerpt' ), |
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); |
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} |
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|
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/** |
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* Filters the list of fields saved in post revisions. |
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* |
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* Included by default: 'post_title', 'post_content' and 'post_excerpt'. |
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* |
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* Disallowed fields: 'ID', 'post_name', 'post_parent', 'post_date', |
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* 'post_date_gmt', 'post_status', 'post_type', 'comment_count', |
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* and 'post_author'. |
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* |
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* @since 2.6.0 |
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* @since 4.5.0 The `$post` parameter was added. |
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* |
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* @param array $fields List of fields to revision. Contains 'post_title', |
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* 'post_content', and 'post_excerpt' by default. |
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* @param array $post A post array being processed for insertion as a post revision. |
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*/ |
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$fields = apply_filters( '_wp_post_revision_fields', $fields, $post ); |
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|
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// WP uses these internally either in versioning or elsewhere - they cannot be versioned |
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foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect ) { |
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unset( $fields[ $protect ] ); |
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} |
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return $fields; |
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} |
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|
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/** |
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* Returns a post array ready to be inserted into the posts table as a post revision. |
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* |
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* @since 4.5.0 |
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* @access private |
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* |
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* @param array|WP_Post $post Optional. A post array or a WP_Post object to be processed |
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* for insertion as a post revision. Default empty array. |
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* @param bool $autosave Optional. Is the revision an autosave? Default false. |
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* @return array Post array ready to be inserted as a post revision. |
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*/ |
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function _wp_post_revision_data( $post = array(), $autosave = false ) { |
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if ( ! is_array( $post ) ) { |
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$post = get_post( $post, ARRAY_A ); |
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} |
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|
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$fields = _wp_post_revision_fields( $post ); |
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|
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$revision_data = array(); |
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foreach ( array_intersect( array_keys( $post ), array_keys( $fields ) ) as $field ) { |
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$revision_data[ $field ] = $post[ $field ]; |
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} |
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|
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$revision_data['post_parent'] = $post['ID']; |
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$revision_data['post_status'] = 'inherit'; |
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$revision_data['post_type'] = 'revision'; |
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$revision_data['post_name'] = $autosave ? "$post[ID]-autosave-v1" : "$post[ID]-revision-v1"; // "1" is the revisioning system version |
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$revision_data['post_date'] = isset( $post['post_modified'] ) ? $post['post_modified'] : ''; |
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$revision_data['post_date_gmt'] = isset( $post['post_modified_gmt'] ) ? $post['post_modified_gmt'] : ''; |
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return $revision_data; |
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} |
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|
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/** |
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* Creates a revision for the current version of a post. |
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* |
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* Typically used immediately after a post update, as every update is a revision, |
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* and the most recent revision always matches the current post. |
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* |
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* @since 2.6.0 |
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* |
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* @param int $post_id The ID of the post to save as a revision. |
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* @return int|WP_Error|void Void or 0 if error, new revision ID, if success. |
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*/ |
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function wp_save_post_revision( $post_id ) { |
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if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) { |
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return; |
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} |
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|
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$post = get_post( $post_id ); |
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if ( ! $post ) { |
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return; |
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} |
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|
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if ( ! post_type_supports( $post->post_type, 'revisions' ) ) { |
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return; |
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} |
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if ( 'auto-draft' == $post->post_status ) { |
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return; |
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} |
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|
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if ( ! wp_revisions_enabled( $post ) ) { |
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return; |
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} |
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|
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// Compare the proposed update with the last stored revision verifying that |
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// they are different, unless a plugin tells us to always save regardless. |
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// If no previous revisions, save one |
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$revisions = wp_get_post_revisions( $post_id ); |
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if ( $revisions ) { |
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// grab the last revision, but not an autosave |
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foreach ( $revisions as $revision ) { |
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if ( false !== strpos( $revision->post_name, "{$revision->post_parent}-revision" ) ) { |
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$last_revision = $revision; |
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break; |
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} |
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} |
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|
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/** |
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* Filters whether the post has changed since the last revision. |
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* |
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* By default a revision is saved only if one of the revisioned fields has changed. |
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* This filter can override that so a revision is saved even if nothing has changed. |
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* |
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* @since 3.6.0 |
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* |
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* @param bool $check_for_changes Whether to check for changes before saving a new revision. |
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* Default true. |
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* @param WP_Post $last_revision The last revision post object. |
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* @param WP_Post $post The post object. |
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*/ |
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if ( isset( $last_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', true, $last_revision, $post ) ) { |
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$post_has_changed = false; |
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|
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foreach ( array_keys( _wp_post_revision_fields( $post ) ) as $field ) { |
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if ( normalize_whitespace( $post->$field ) != normalize_whitespace( $last_revision->$field ) ) { |
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$post_has_changed = true; |
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break; |
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} |
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} |
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|
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/** |
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* Filters whether a post has changed. |
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* |
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* By default a revision is saved only if one of the revisioned fields has changed. |
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* This filter allows for additional checks to determine if there were changes. |
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* |
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* @since 4.1.0 |
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* |
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* @param bool $post_has_changed Whether the post has changed. |
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* @param WP_Post $last_revision The last revision post object. |
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* @param WP_Post $post The post object. |
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*/ |
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$post_has_changed = (bool) apply_filters( 'wp_save_post_revision_post_has_changed', $post_has_changed, $last_revision, $post ); |
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|
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//don't save revision if post unchanged |
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if ( ! $post_has_changed ) { |
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return; |
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} |
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} |
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} |
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|
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$return = _wp_put_post_revision( $post ); |
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|
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// If a limit for the number of revisions to keep has been set, |
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// delete the oldest ones. |
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$revisions_to_keep = wp_revisions_to_keep( $post ); |
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|
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if ( $revisions_to_keep < 0 ) { |
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return $return; |
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} |
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$revisions = wp_get_post_revisions( $post_id, array( 'order' => 'ASC' ) ); |
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$delete = count( $revisions ) - $revisions_to_keep; |
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if ( $delete < 1 ) { |
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return $return; |
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} |
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$revisions = array_slice( $revisions, 0, $delete ); |
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for ( $i = 0; isset( $revisions[ $i ] ); $i++ ) { |
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if ( false !== strpos( $revisions[ $i ]->post_name, 'autosave' ) ) { |
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continue; |
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} |
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wp_delete_post_revision( $revisions[ $i ]->ID ); |
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} |
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return $return; |
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} |
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/** |
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* Retrieve the autosaved data of the specified post. |
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* |
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* Returns a post object containing the information that was autosaved for the |
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* specified post. If the optional $user_id is passed, returns the autosave for that user |
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* otherwise returns the latest autosave. |
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* |
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* @since 2.6.0 |
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* |
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* @param int $post_id The post ID. |
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* @param int $user_id Optional The post author ID. |
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* @return WP_Post|false The autosaved data or false on failure or when no autosave exists. |
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*/ |
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function wp_get_post_autosave( $post_id, $user_id = 0 ) { |
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$revisions = wp_get_post_revisions( $post_id, array( 'check_enabled' => false ) ); |
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|
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foreach ( $revisions as $revision ) { |
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if ( false !== strpos( $revision->post_name, "{$post_id}-autosave" ) ) { |
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if ( $user_id && $user_id != $revision->post_author ) { |
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continue; |
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} |
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return $revision; |
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} |
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} |
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return false; |
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} |
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/** |
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* Determines if the specified post is a revision. |
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* |
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* @since 2.6.0 |
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* |
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* @param int|WP_Post $post Post ID or post object. |
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* @return false|int False if not a revision, ID of revision's parent otherwise. |
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*/ |
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function wp_is_post_revision( $post ) { |
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$post = wp_get_post_revision( $post ); |
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if ( ! $post ) { |
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return false; |
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} |
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|
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return (int) $post->post_parent; |
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} |
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|
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/** |
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* Determines if the specified post is an autosave. |
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* |
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* @since 2.6.0 |
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* |
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* @param int|WP_Post $post Post ID or post object. |
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* @return false|int False if not a revision, ID of autosave's parent otherwise |
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*/ |
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function wp_is_post_autosave( $post ) { |
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$post = wp_get_post_revision( $post ); |
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if ( ! $post ) { |
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return false; |
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} |
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|
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if ( false !== strpos( $post->post_name, "{$post->post_parent}-autosave" ) ) { |
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return (int) $post->post_parent; |
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} |
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return false; |
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} |
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|
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/** |
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* Inserts post data into the posts table as a post revision. |
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* |
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* @since 2.6.0 |
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* @access private |
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* |
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* @param int|WP_Post|array|null $post Post ID, post object OR post array. |
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* @param bool $autosave Optional. Is the revision an autosave? |
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* @return int|WP_Error WP_Error or 0 if error, new revision ID if success. |
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*/ |
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function _wp_put_post_revision( $post = null, $autosave = false ) { |
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if ( is_object( $post ) ) { |
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$post = get_object_vars( $post ); |
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} elseif ( ! is_array( $post ) ) { |
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$post = get_post( $post, ARRAY_A ); |
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} |
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if ( ! $post || empty( $post['ID'] ) ) { |
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return new WP_Error( 'invalid_post', __( 'Invalid post ID.' ) ); |
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} |
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|
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if ( isset( $post['post_type'] ) && 'revision' == $post['post_type'] ) { |
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return new WP_Error( 'post_type', __( 'Cannot create a revision of a revision' ) ); |
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} |
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$post = _wp_post_revision_data( $post, $autosave ); |
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$post = wp_slash( $post ); //since data is from db |
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$revision_id = wp_insert_post( $post ); |
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if ( is_wp_error( $revision_id ) ) { |
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return $revision_id; |
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} |
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|
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if ( $revision_id ) { |
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/** |
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* Fires once a revision has been saved. |
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* |
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* @since 2.6.0 |
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* |
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* @param int $revision_id Post revision ID. |
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*/ |
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do_action( '_wp_put_post_revision', $revision_id ); |
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} |
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return $revision_id; |
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} |
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|
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/** |
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* Gets a post revision. |
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* |
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* @since 2.6.0 |
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* |
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* @param int|WP_Post $post The post ID or object. |
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* @param string $output Optional. The required return type. One of OBJECT, ARRAY_A, or ARRAY_N, which correspond to |
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* a WP_Post object, an associative array, or a numeric array, respectively. Default OBJECT. |
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* @param string $filter Optional sanitation filter. See sanitize_post(). |
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* @return WP_Post|array|null WP_Post (or array) on success, or null on failure. |
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*/ |
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function wp_get_post_revision( &$post, $output = OBJECT, $filter = 'raw' ) { |
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$revision = get_post( $post, OBJECT, $filter ); |
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if ( ! $revision ) { |
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return $revision; |
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} |
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if ( 'revision' !== $revision->post_type ) { |
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return null; |
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} |
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|
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if ( $output == OBJECT ) { |
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return $revision; |
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} elseif ( $output == ARRAY_A ) { |
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$_revision = get_object_vars( $revision ); |
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return $_revision; |
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} elseif ( $output == ARRAY_N ) { |
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$_revision = array_values( get_object_vars( $revision ) ); |
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return $_revision; |
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} |
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return $revision; |
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} |
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|
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/** |
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* Restores a post to the specified revision. |
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* |
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* Can restore a past revision using all fields of the post revision, or only selected fields. |
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* |
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* @since 2.6.0 |
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* |
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* @param int|WP_Post $revision_id Revision ID or revision object. |
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* @param array $fields Optional. What fields to restore from. Defaults to all. |
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* @return int|false|null Null if error, false if no fields to restore, (int) post ID if success. |
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*/ |
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function wp_restore_post_revision( $revision_id, $fields = null ) { |
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$revision = wp_get_post_revision( $revision_id, ARRAY_A ); |
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if ( ! $revision ) { |
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return $revision; |
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} |
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|
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if ( ! is_array( $fields ) ) { |
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$fields = array_keys( _wp_post_revision_fields( $revision ) ); |
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} |
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|
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$update = array(); |
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foreach ( array_intersect( array_keys( $revision ), $fields ) as $field ) { |
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$update[ $field ] = $revision[ $field ]; |
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} |
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|
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if ( ! $update ) { |
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return false; |
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} |
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|
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$update['ID'] = $revision['post_parent']; |
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|
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$update = wp_slash( $update ); //since data is from db |
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|
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$post_id = wp_update_post( $update ); |
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if ( ! $post_id || is_wp_error( $post_id ) ) { |
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return $post_id; |
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} |
|
|
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// Update last edit user |
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update_post_meta( $post_id, '_edit_last', get_current_user_id() ); |
|
|
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/** |
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* Fires after a post revision has been restored. |
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* |
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* @since 2.6.0 |
|
* |
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* @param int $post_id Post ID. |
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* @param int $revision_id Post revision ID. |
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*/ |
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do_action( 'wp_restore_post_revision', $post_id, $revision['ID'] ); |
|
|
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return $post_id; |
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} |
|
|
|
/** |
|
* Deletes a revision. |
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* |
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* 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( $revision_id ) { |
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$revision = wp_get_post_revision( $revision_id ); |
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if ( ! $revision ) { |
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return $revision; |
|
} |
|
|
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$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. |
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*/ |
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do_action( 'wp_delete_post_revision', $revision->ID, $revision ); |
|
} |
|
|
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return $delete; |
|
} |
|
|
|
/** |
|
* Returns all revisions of specified post. |
|
* |
|
* @since 2.6.0 |
|
* |
|
* @see get_children() |
|
* |
|
* @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global `$post`. |
|
* @param array|null $args Optional. Arguments for retrieving post revisions. Default null. |
|
* @return array An array of revisions, or an empty array if none. |
|
*/ |
|
function wp_get_post_revisions( $post_id = 0, $args = null ) { |
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$post = get_post( $post_id ); |
|
if ( ! $post || empty( $post->ID ) ) { |
|
return array(); |
|
} |
|
|
|
$defaults = array( |
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'order' => 'DESC', |
|
'orderby' => 'date ID', |
|
'check_enabled' => true, |
|
); |
|
$args = wp_parse_args( $args, $defaults ); |
|
|
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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', |
|
) |
|
); |
|
|
|
$revisions = get_children( $args ); |
|
if ( ! $revisions ) { |
|
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; |
|
} |
|
|
|
/** |
|
* Filters 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 ); |
|
add_filter( 'get_post_metadata', '_wp_preview_post_thumbnail_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( __( 'Sorry, you are not allowed to preview drafts.' ), 403 ); |
|
} |
|
|
|
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 ) { |
|
$post = get_post(); |
|
if ( ! $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(); |
|
} else { |
|
$term = get_term_by( 'slug', 'post-format-' . sanitize_key( $_REQUEST['post_format'] ), 'post_format' ); |
|
if ( $term ) { |
|
$terms = array( $term ); // Can only have one post format |
|
} |
|
} |
|
|
|
return $terms; |
|
} |
|
|
|
/** |
|
* Filters post thumbnail lookup to set the post thumbnail. |
|
* |
|
* @since 4.6.0 |
|
* @access private |
|
* |
|
* @param null|array|string $value The value to return - a single metadata value, or an array of values. |
|
* @param int $post_id Post ID. |
|
* @param string $meta_key Meta key. |
|
* @return null|array The default return value or the post thumbnail meta array. |
|
*/ |
|
function _wp_preview_post_thumbnail_filter( $value, $post_id, $meta_key ) { |
|
$post = get_post(); |
|
if ( ! $post ) { |
|
return $value; |
|
} |
|
|
|
if ( empty( $_REQUEST['_thumbnail_id'] ) || |
|
empty( $_REQUEST['preview_id'] ) || |
|
$post->ID != $post_id || |
|
'_thumbnail_id' != $meta_key || |
|
'revision' == $post->post_type || |
|
$post_id != $_REQUEST['preview_id'] ) { |
|
|
|
return $value; |
|
} |
|
|
|
$thumbnail_id = intval( $_REQUEST['_thumbnail_id'] ); |
|
if ( $thumbnail_id <= 0 ) { |
|
return ''; |
|
} |
|
|
|
return strval( $thumbnail_id ); |
|
} |
|
|
|
/** |
|
* 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; |
|
}
|
|
|