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Check for circular post parent dependencies. Exclude the current post and its children from the parent dropdown.

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git-svn-id: https://develop.svn.wordpress.org/trunk@10129 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Ryan Boren
2008-12-08 19:29:42 +00:00
parent e1df6f154e
commit cbef7dc6c4
2 changed files with 30 additions and 2 deletions
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30
wp-includes/post.php
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@@ -1417,6 +1417,18 @@ function wp_insert_post($postarr = array(), $wp_error = false) {
else
$post_parent = 0;
if ( !empty($post_ID) ) {
if ( $post_parent == $post_ID ) {
// Post can't be its own parent
$post_parent = 0;
} elseif ( !empty($post_parent) ) {
$parent_post = get_post($post_parent);
// Check for circular dependency
if ( $parent_post->post_parent == $post_ID )
$post_parent = 0;
}
}
if ( isset($menu_order) )
$menu_order = (int) $menu_order;
else
@@ -2059,7 +2071,7 @@ function &get_pages($args = '') {
'sort_column' => 'post_title', 'hierarchical' => 1,
'exclude' => '', 'include' => '',
'meta_key' => '', 'meta_value' => '',
'authors' => '', 'parent' => -1
'authors' => '', 'parent' => -1, 'exclude_tree' => ''
);
$r = wp_parse_args( $args, $defaults );
@@ -2170,6 +2182,22 @@ function &get_pages($args = '') {
if ( $child_of || $hierarchical )
$pages = & get_page_children($child_of, $pages);
if ( !empty($exclude_tree) ) {
$exclude = array();
$exclude = (int) $exclude_tree;
$children = get_page_children($exclude, $pages);
$excludes = array();
foreach ( $children as $child )
$excludes[] = $child->ID;
$excludes[] = $exclude;
$total = count($pages);
for ( $i = 0; $i < $total; $i++ ) {
if ( in_array($pages[$i]->ID, $excludes) )
unset($pages[$i]);
}
}
$cache[ $key ] = $pages;
wp_cache_set( 'get_pages', $cache, 'posts' );