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Delete old autosave if new autosave has same content as the post.

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Props nacin. Fixes #7392 for trunk.

git-svn-id: https://develop.svn.wordpress.org/trunk@24878 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Mark Jaquith 2013-07-29 19:06:08 +00:00
parent b3c1e7a5d4
commit 1891cf880f
1 changed files with 17 additions and 2 deletions
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19
wp-admin/includes/post.php
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@ -1320,14 +1320,29 @@ function wp_create_post_autosave( $post_id ) {
$new_autosave['ID'] = $old_autosave->ID; $new_autosave['ID'] = $old_autosave->ID;
$new_autosave['post_author'] = $post_author; $new_autosave['post_author'] = $post_author;
// If the new autosave is the same content as the post, delete the old autosave.
$post = get_post( $post_id );
$autosave_is_different = false;
foreach ( array_keys( _wp_post_revision_fields() ) as $field ) {
if ( normalize_whitespace( $new_autosave[ $field ] ) != normalize_whitespace( $post->$field ) ) {
$autosave_is_different = true;
break;
}
}
if ( ! $autosave_is_different ) {
wp_delete_post_revision( $old_autosave->ID );
return;
}
return wp_update_post( $new_autosave ); return wp_update_post( $new_autosave );
} }
// _wp_put_post_revision() expects unescaped. // _wp_put_post_revision() expects unescaped.
$_POST = wp_unslash($_POST); $post_data = wp_unslash( $_POST );
// Otherwise create the new autosave as a special post revision // Otherwise create the new autosave as a special post revision
return _wp_put_post_revision( $_POST, true ); return _wp_put_post_revision( $post_data, true );
} }
/** /**