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Meta: Allow empty strings to be set by Custom Fields meta box.

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Because the REST API allows meta keys to have empty values, the Custom Fields meta box should permit the same behavior.

Props charlestonsw, soulseekah.
Fixes #43559.

Built from https://develop.svn.wordpress.org/branches/5.0@43811


git-svn-id: http://core.svn.wordpress.org/branches/5.0@43640 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
danielbachhuber 2018-10-23 18:56:38 +00:00
parent 9cd179146c
commit 7e3414597f
3 changed files with 2 additions and 4 deletions
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2
wp-admin/includes/ajax-actions.php
View File

@ -1341,8 +1341,6 @@ function wp_ajax_add_meta() {
$value = wp_unslash( $_POST['meta'][$mid]['value'] );
if ( '' == trim($key) )
wp_die( __( 'Please provide a custom field name.' ) );
if ( '' == trim($value) )
wp_die( __( 'Please provide a custom field value.' ) );
if ( ! $meta = get_metadata_by_mid( 'post', $mid ) )
wp_die( 0 ); // if meta doesn't exist
if ( is_protected_meta( $meta->meta_key, 'post' ) || is_protected_meta( $key, 'post' ) ||

2
wp-admin/includes/post.php
View File

@ -814,7 +814,7 @@ function add_meta( $post_ID ) {
if ( is_string( $metavalue ) )
$metavalue = trim( $metavalue );
if ( ('0' === $metavalue || ! empty ( $metavalue ) ) && ( ( ( '#NONE#' != $metakeyselect ) && !empty ( $metakeyselect) ) || !empty ( $metakeyinput ) ) ) {
if ( ( ( '#NONE#' != $metakeyselect ) && ! empty( $metakeyselect ) ) || ! empty( $metakeyinput ) ) {
/*
* We have a key/value pair. If both the select and the input
* for the key have data, the input takes precedence.

2
wp-includes/version.php
View File

@ -4,7 +4,7 @@
*
* @global string $wp_version
*/
$wp_version = '5.0-alpha-43810';
$wp_version = '5.0-alpha-43811';
/**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.