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root@pico committed 2015-05-01 21:20:47 +02:00
1 parent 70d2335bba
commit 7428b67da5
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@@ -70,17 +70,15 @@ function _wp_post_revision_fields( $post = null, $autosave = false ) {
}
/**
* Saves an already existing post as a post revision.
* Creates a revision for the current version of a post.
*
* Typically used immediately after post updates.
* Adds a copy of the current post as a revision, so latest revision always matches current 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
*
* @uses _wp_put_post_revision()
*
* @param int $post_id The ID of the post to save as a revision.
* @return mixed Null or 0 if error, new revision ID, if success.
* @param int $post_id The ID of the post to save as a revision.
* @return null|int Null or 0 if error, new revision ID, if success.
*/
function wp_save_post_revision( $post_id ) {
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
@@ -118,10 +116,10 @@ function wp_save_post_revision( $post_id ) {
*
* @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.
* @param bool $check_for_changes Whether to check for changes before saving a new revision.
* Default true.
* @param WP_Post $last_revision The 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 ) ) {
@@ -133,20 +131,38 @@ function wp_save_post_revision( $post_id ) {
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 )
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;
// all revisions and autosaves
$revisions = wp_get_post_revisions( $post_id, array( 'order' => 'ASC' ) );
$delete = count($revisions) - $revisions_to_keep;
@@ -175,8 +191,6 @@ function wp_save_post_revision( $post_id ) {
*
* @since 2.6.0
*
* @uses wp_get_post_revisions()
*
* @param int $post_id The post ID.
* @param int $user_id optional The post author ID.
* @return object|bool The autosaved data or false on failure or when no autosave exists.
@@ -235,8 +249,6 @@ function wp_is_post_autosave( $post ) {
* @since 2.6.0
* @access private
*
* @uses wp_insert_post()
*
* @param int|object|array $post Post ID, post object OR post array.
* @param bool $autosave Optional. Is the revision an autosave?
* @return mixed WP_Error or 0 if error, new revision ID if success.
@@ -279,8 +291,6 @@ function _wp_put_post_revision( $post = null, $autosave = false ) {
*
* @since 2.6.0
*
* @uses get_post()
*
* @param int|object $post The post ID or object.
* @param string $output Optional. OBJECT, ARRAY_A, or ARRAY_N.
* @param string $filter Optional sanitation filter. @see sanitize_post().
@@ -312,9 +322,6 @@ function wp_get_post_revision(&$post, $output = OBJECT, $filter = 'raw') {
*
* @since 2.6.0
*
* @uses wp_get_post_revision()
* @uses wp_update_post()
*
* @param int|object $revision_id Revision ID or revision object.
* @param array $fields Optional. What fields to restore from. Defaults to all.
* @return mixed Null if error, false if no fields to restore, (int) post ID if success.
@@ -373,9 +380,6 @@ function wp_restore_post_revision( $revision_id, $fields = null ) {
*
* @since 2.6.0
*
* @uses wp_get_post_revision()
* @uses wp_delete_post()
*
* @param int|object $revision_id Revision ID or revision object.
* @return mixed Null or WP_Error if error, deleted post if success.
*/
@@ -407,8 +411,6 @@ function wp_delete_post_revision( $revision_id ) {
*
* @since 2.6.0
*
* @uses get_children()
*
* @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.
*/
@@ -436,9 +438,7 @@ function wp_get_post_revisions( $post_id = 0, $args = null ) {
*
* @since 3.6.0
*
* @uses wp_revisions_to_keep()
*
* @param object $post The post object.
* @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 ) {
@@ -447,13 +447,15 @@ function wp_revisions_enabled( $post ) {
/**
* Determine how many revisions to retain for a given post.
* By default, an infinite number of revisions are stored if a post type supports revisions.
*
* 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
*
* @uses post_type_supports()
*
* @param object $post The post object.
* @param WP_Post $post The post object.
* @return int The number of revisions to keep.
*/
function wp_revisions_to_keep( $post ) {
@@ -570,9 +572,7 @@ function _wp_get_post_revision_version( $revision ) {
* @since 3.6.0
* @access private
*
* @uses wp_get_post_revisions()
*
* @param object $post Post 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
*/