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Options, Meta APIs: Revert update_option changes.

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This reverts changes from [56648], [56681], [56717], [56762], [56788], [56797], and [56814] to restore the behavior for `update_option()` and `update_network_option()` to their prior state as of 6.3.X due to the discovery of various backwards compatibility issues found late in the 6.4 release cycle.

Props mukesh27, costdev, flixos90, spacedmonkey, snicco, jrf, joemcgill.
See #22192, #59360.

Built from https://develop.svn.wordpress.org/trunk@56946


git-svn-id: http://core.svn.wordpress.org/trunk@56457 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Joe McGill 2023-10-16 20:37:23 +00:00
parent 8325d334f6
commit 9a810ff5bc
2 changed files with 14 additions and 137 deletions
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149
wp-includes/option.php
View File

@ -776,47 +776,21 @@ function update_option( $option, $value, $autoload = null ) {
*/ */
$value = apply_filters( 'pre_update_option', $value, $option, $old_value ); $value = apply_filters( 'pre_update_option', $value, $option, $old_value );
/*
* To get the actual raw old value from the database, any existing pre filters need to be temporarily disabled.
* Immediately after getting the raw value, they are reinstated.
* The raw value is only used to determine whether a value is present in the database. It is not used anywhere
* else, and is not passed to any of the hooks either.
*/
if ( has_filter( "pre_option_{$option}" ) ) {
global $wp_filter;
$old_filters = $wp_filter[ "pre_option_{$option}" ];
unset( $wp_filter[ "pre_option_{$option}" ] );
$raw_old_value = get_option( $option );
$wp_filter[ "pre_option_{$option}" ] = $old_filters;
} else {
$raw_old_value = $old_value;
}
/** This filter is documented in wp-includes/option.php */
$default_value = apply_filters( "default_option_{$option}", false, $option, false );
/* /*
* If the new and old values are the same, no need to update. * If the new and old values are the same, no need to update.
* *
* An exception applies when no value is set in the database, i.e. the old value is the default. * Unserialized values will be adequate in most cases. If the unserialized
* In that case, the new value should always be added as it may be intentional to store it rather than relying on the default. * data differs, the (maybe) serialized data is checked to avoid
* unnecessary database calls for otherwise identical object instances.
* *
* See https://core.trac.wordpress.org/ticket/38903 and https://core.trac.wordpress.org/ticket/22192. * See https://core.trac.wordpress.org/ticket/38903
*/ */
if ( if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) {
$value === $raw_old_value ||
(
$raw_old_value !== $default_value &&
_is_equal_database_value( $raw_old_value, $value )
)
) {
return false; return false;
} }
if ( $raw_old_value === $default_value ) { /** This filter is documented in wp-includes/option.php */
if ( apply_filters( "default_option_{$option}", false, $option, false ) === $old_value ) {
// Default setting for new options is 'yes'. // Default setting for new options is 'yes'.
if ( null === $autoload ) { if ( null === $autoload ) {
$autoload = 'yes'; $autoload = 'yes';
@ -2144,80 +2118,20 @@ function update_network_option( $network_id, $option, $value ) {
*/ */
$value = apply_filters( "pre_update_site_option_{$option}", $value, $old_value, $option, $network_id ); $value = apply_filters( "pre_update_site_option_{$option}", $value, $old_value, $option, $network_id );
/*
* To get the actual raw old value from the database, any existing pre filters need to be temporarily disabled.
* Immediately after getting the raw value, they are reinstated.
* The raw value is only used to determine whether a value is present in the database. It is not used anywhere
* else, and is not passed to any of the hooks either.
*/
global $wp_filter;
/** This filter is documented in wp-includes/option.php */
$default_value = apply_filters( "default_site_option_{$option}", false, $option, $network_id );
$has_site_filter = has_filter( "pre_site_option_{$option}" );
$has_option_filter = has_filter( "pre_option_{$option}" );
if ( $has_site_filter || $has_option_filter ) {
if ( $has_site_filter ) {
$old_ms_filters = $wp_filter[ "pre_site_option_{$option}" ];
unset( $wp_filter[ "pre_site_option_{$option}" ] );
}
if ( $has_option_filter ) {
$old_single_site_filters = $wp_filter[ "pre_option_{$option}" ];
unset( $wp_filter[ "pre_option_{$option}" ] );
}
if ( is_multisite() ) {
$raw_old_value = get_network_option( $network_id, $option );
} else {
$raw_old_value = get_option( $option, $default_value );
}
if ( $has_site_filter ) {
$wp_filter[ "pre_site_option_{$option}" ] = $old_ms_filters;
}
if ( $has_option_filter ) {
$wp_filter[ "pre_option_{$option}" ] = $old_single_site_filters;
}
} else {
$raw_old_value = $old_value;
}
if ( ! is_multisite() ) {
/** This filter is documented in wp-includes/option.php */
$default_value = apply_filters( "default_option_{$option}", $default_value, $option, true );
}
/* /*
* If the new and old values are the same, no need to update. * If the new and old values are the same, no need to update.
* *
* An exception applies when no value is set in the database, i.e. the old value is the default. * Unserialized values will be adequate in most cases. If the unserialized
* In that case, the new value should always be added as it may be intentional to store it rather than relying on the default. * data differs, the (maybe) serialized data is checked to avoid
* unnecessary database calls for otherwise identical object instances.
* *
* See https://core.trac.wordpress.org/ticket/44956 and https://core.trac.wordpress.org/ticket/22192 and https://core.trac.wordpress.org/ticket/59360 * See https://core.trac.wordpress.org/ticket/44956
*/ */
if ( if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) {
$value === $raw_old_value ||
(
false !== $raw_old_value &&
/*
* Single site stores values in the `option_value` field, which cannot be set to NULL.
* This means a PHP `null` value will be cast to an empty string, which can be considered
* equal to values such as an empty string, or false when cast to string.
*
* However, Multisite stores values in the `meta_value` field, which can be set to NULL.
* As NULL is unique in the database, skip checking an old or new value of NULL
* against any other value.
*/
( ! is_multisite() || ! ( null === $raw_old_value || null === $value ) ) &&
_is_equal_database_value( $raw_old_value, $value )
)
) {
return false; return false;
} }
if ( $default_value === $raw_old_value ) { if ( false === $old_value ) {
return add_network_option( $network_id, $option, $value ); return add_network_option( $network_id, $option, $value );
} }
@ -2995,40 +2909,3 @@ function filter_default_option( $default_value, $option, $passed_default ) {
return $registered[ $option ]['default']; return $registered[ $option ]['default'];
} }
/**
* Determines whether two values will be equal when stored in the database.
*
* @since 6.4.0
* @access private
*
* @param mixed $old_value The old value to compare.
* @param mixed $new_value The new value to compare.
* @return bool True if the values are equal, false otherwise.
*/
function _is_equal_database_value( $old_value, $new_value ) {
$values = array(
'old' => $old_value,
'new' => $new_value,
);
foreach ( $values as $_key => &$_value ) {
// Cast scalars or null to a string so type discrepancies don't result in cache misses.
if ( null === $_value || is_scalar( $_value ) ) {
$_value = (string) $_value;
}
}
if ( $values['old'] === $values['new'] ) {
return true;
}
/*
* Unserialized values will be adequate in most cases. If the unserialized
* data differs, the (maybe) serialized data is checked to avoid
* unnecessary database calls for otherwise identical object instances.
*
* See https://core.trac.wordpress.org/ticket/38903
*/
return maybe_serialize( $old_value ) === maybe_serialize( $new_value );
}

2
wp-includes/version.php
View File

@ -16,7 +16,7 @@
* *
* @global string $wp_version * @global string $wp_version
*/ */
$wp_version = '6.4-beta4-56945'; $wp_version = '6.4-beta4-56946';
/** /**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema. * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.