wp_delete_category() tweaks and code consolidation. fixes #3463
git-svn-id: https://develop.svn.wordpress.org/trunk@4639 602fd350-edb4-49c9-b593-d223f7449a82
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@ -174,29 +174,27 @@ function wp_delete_category($cat_ID) {
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global $wpdb;
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$cat_ID = (int) $cat_ID;
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$default_cat = get_option('default_category');
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$default_link_cat = get_option('default_link_category');
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// Don't delete the default cat.
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if ( $cat_ID == get_option('default_category') )
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return 0;
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if ( $cat_ID == get_option('default_link_category') )
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// Don't delete either of the default cats
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if ( $cat_ID == $default_cat || $cat_ID == $default_link_cat )
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return 0;
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$category = get_category($cat_ID);
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$parent = $category->category_parent;
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// Delete the category.
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// Delete the category
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if ( !$wpdb->query("DELETE FROM $wpdb->categories WHERE cat_ID = '$cat_ID'") )
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return 0;
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// Update children to point to new parent.
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// Update children to point to new parent
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$wpdb->query("UPDATE $wpdb->categories SET category_parent = '$parent' WHERE category_parent = '$cat_ID'");
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// Only set posts and links to the default category if they're not in another category already.
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$default_cat = get_option('default_category');
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// Only set posts and links to the default category if they're not in another category already
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$posts = $wpdb->get_col("SELECT post_id FROM $wpdb->post2cat WHERE category_id='$cat_ID'");
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if ( is_array($posts) ) foreach ($posts as $post_id) {
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foreach ( (array) $posts as $post_id ) {
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$cats = wp_get_post_categories($post_id);
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if ( 1 == count($cats) )
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$cats = array($default_cat);
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@ -205,9 +203,8 @@ function wp_delete_category($cat_ID) {
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wp_set_post_categories($post_id, $cats);
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}
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$default_link_cat = get_option('default_link_category');
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$links = $wpdb->get_col("SELECT link_id FROM $wpdb->link2cat WHERE category_id='$cat_ID'");
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if ( is_array($links) ) foreach ($links as $link_id) {
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foreach ( (array) $links as $link_id ) {
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$cats = wp_get_link_cats($link_id);
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if ( 1 == count($cats) )
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$cats = array($default_link_cat);
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@ -217,9 +214,7 @@ function wp_delete_category($cat_ID) {
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}
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clean_category_cache($cat_ID);
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do_action('delete_category', $cat_ID);
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return 1;
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}
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