From eb35f657464b83c46051b54a72f919147225f67c Mon Sep 17 00:00:00 2001 From: Drew Jaynes Date: Tue, 25 Mar 2014 09:00:14 +0000 Subject: [PATCH] Inline documentation for hooks in wp-includes/revision.php. Props adamsilverstein, DrewAPicture. Fixes #26979. Built from https://develop.svn.wordpress.org/trunk@27699 git-svn-id: http://core.svn.wordpress.org/trunk@27538 1a063a9b-81f0-0310-95a4-ce76da25c4cd --- wp-includes/revision.php | 75 +++++++++++++++++++++++++++++++++++----- 1 file changed, 66 insertions(+), 9 deletions(-) diff --git a/wp-includes/revision.php b/wp-includes/revision.php index 12cc8e1c4f..48523032e7 100644 --- a/wp-includes/revision.php +++ b/wp-includes/revision.php @@ -16,8 +16,6 @@ * @since 2.6.0 * @access private * - * @uses apply_filters() Calls '_wp_post_revision_fields' on 'title', 'content' and 'excerpt' fields. - * * @param array $post Optional a post array to be processed for insertion as a post revision. * @param bool $autosave optional Is the revision an autosave? * @return array Post array ready to be inserted as a post revision or array of fields that can be versioned. @@ -33,7 +31,20 @@ function _wp_post_revision_fields( $post = null, $autosave = false ) { 'post_excerpt' => __( 'Excerpt' ), ); - // Runs only once + /** + * 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 @@ -99,7 +110,21 @@ function wp_save_post_revision( $post_id ) { } } - if ( isset( $last_revision ) && apply_filters( 'wp_save_post_revision_check_for_changes', true, $last_revision, $post ) ) { + /** + * 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 int $last_revision ID of the last revision. + * @param int $post Post ID. + * + */ + 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 ) { @@ -237,8 +262,16 @@ function _wp_put_post_revision( $post = null, $autosave = false ) { if ( is_wp_error($revision_id) ) return $revision_id; - if ( $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 $revision_id; } @@ -283,8 +316,6 @@ function wp_get_post_revision(&$post, $output = OBJECT, $filter = 'raw') { * * @uses wp_get_post_revision() * @uses wp_update_post() - * @uses do_action() Calls 'wp_restore_post_revision' on post ID and revision ID if wp_update_post() - * is successful. * * @param int|object $revision_id Revision ID or revision object. * @param array $fields Optional. What fields to restore from. Defaults to all. @@ -324,6 +355,14 @@ function wp_restore_post_revision( $revision_id, $fields = null ) { // 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; @@ -350,8 +389,17 @@ function wp_delete_post_revision( $revision_id ) { if ( is_wp_error( $delete ) ) return $delete; - if ( $delete ) + 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; } @@ -406,7 +454,6 @@ function wp_revisions_enabled( $post ) { * @since 3.6.0 * * @uses post_type_supports() - * @uses apply_filters() Calls 'wp_revisions_to_keep' hook on the number of revisions. * * @param object $post The post object. * @return int The number of revisions to keep. @@ -422,6 +469,16 @@ function wp_revisions_to_keep( $post ) { 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 ); }