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Do not import sidebars by index after switching themes, props Denis-de-Bernardy, see #9695

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git-svn-id: http://svn.automattic.com/wordpress/trunk@11161 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
azaozz 2009-05-03 07:53:54 +00:00
parent 83952bee95
commit cd770d55a6
1 changed files with 17 additions and 9 deletions
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26
wp-admin/widgets.php
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@ -40,17 +40,17 @@ if ( empty( $sidebars_widgets ) )
// look for "lost" widgets, this has to run at least on each theme change
function retrieve_widgets() {
global $wp_registered_widget_updates, $wp_registered_sidebars, $sidebars_widgets;
global $wp_registered_widget_updates, $wp_registered_sidebars, $sidebars_widgets, $wp_registered_widgets;
$_sidebars_widgets = array();
$sidebars = array_keys($wp_registered_sidebars);
unset( $sidebars_widgets['array_version'] );
$diff = array_diff( array_keys($sidebars_widgets), $sidebars );
if ( empty($diff) )
return;
unset( $sidebars_widgets['array_version'] );
// Move the known-good ones first
foreach ( $sidebars as $id ) {
if ( array_key_exists( $id, $sidebars_widgets ) ) {
@ -59,10 +59,6 @@ function retrieve_widgets() {
}
}
// Assign to each unmatched registered sidebar the first available orphan
while ( ( $sidebar = array_shift( $sidebars ) ) && $widgets = array_shift( $sidebars_widgets ) )
$_sidebars_widgets[ $sidebar ] = $widgets;
// if new theme has less sidebars than the old theme
if ( !empty($sidebars_widgets) ) {
foreach ( $sidebars_widgets as $lost => $val ) {
@ -70,9 +66,22 @@ function retrieve_widgets() {
$_sidebars_widgets['wp_inactive_widgets'] = array_merge( (array) $_sidebars_widgets['wp_inactive_widgets'], $val );
}
}
// discard invalid, theme-specific widgets from sidebars
foreach ( $_sidebars_widgets as $sidebar => $widgets ) {
if ( !is_array($widgets) )
continue;
$_widgets = array();
foreach ( $widgets as $widget ) {
if ( isset($wp_registered_widgets[$widget]) )
$_widgets[] = $widget;
}
$_sidebars_widgets[$sidebar] = $_widgets;
}
$sidebars_widgets = $_sidebars_widgets;
unset($_sidebars_widgets);
unset($_sidebars_widgets, $_widgets);
// find hidden/lost multi-widget instances
$shown_widgets = array();
@ -105,7 +114,6 @@ function retrieve_widgets() {
}
$sidebars_widgets['wp_inactive_widgets'] = array_merge($lost_widgets, (array) $sidebars_widgets['wp_inactive_widgets']);
$sidebars_widgets['array_version'] = 3;
wp_set_sidebars_widgets($sidebars_widgets);
}
retrieve_widgets();