Ticket #6035: 6035.diff

wp-admin/import/wp-cat2tag.php

@@ -108 +108 @@
 <ul style="list-style:none">
 
 <?php   $hier = _get_term_hierarchy('category');
+                 $default = get_option('default_category');
 
                 foreach ($this->all_categories as $category) {
                         $category = sanitize_term( $category, 'category', 'display' );
 
-                        if ( (int) $category->parent == 0 ) { ?>
+                        if ( ((int) $category->parent == 0 ) && ( $category->term_id != $default )) { ?>
 
         <li><label><input type="checkbox" name="cats_to_convert[]" value="<?php echo intval($category->term_id); ?>" /> <?php echo $category->name . ' (' . $category->count . ')'; ?></label><?php
 
@@ -224 +225 @@
                         return false;
                 }
         }
+        
+        function set_default_category() {
+                global $wpdb;
+                
+                $default_cat_id = (int) get_option('default_category');
+                
+                if ( !$default_cat_id )
+                        return;
+                
+                $default_cat = get_term_by('term_id', $default_cat_id, 'category');
+                $tt_ids = array($default_cat->term_taxonomy_id);
+                $terms = array($default_cat->term_id);
+                
+                # mass fetch ids
+                $post_ids = $wpdb->get_results("
+                        SELECT  posts.ID
+                        FROM    $wpdb->posts as posts
+                        LEFT JOIN $wpdb->term_relationships as term_relationships
+                        ON              term_relationships.object_id = posts.ID
+                        AND             term_relationships.term_taxonomy_id = $default_cat->term_taxonomy_id
+                        WHERE   post_type = 'post'
+                        AND             term_relationships.object_id IS NULL
+                        ");
+                
+                # mass insert relationships
+                $wpdb->query("
+                        INSERT INTO $wpdb->term_relationships ( object_id, term_taxonomy_id )
+                        SELECT  posts.ID, $default_cat->term_taxonomy_id
+                        FROM    $wpdb->posts as posts
+                        LEFT JOIN $wpdb->term_relationships as term_relationships
+                        ON              term_relationships.object_id = posts.ID
+                        AND             term_relationships.term_taxonomy_id = $default_cat->term_taxonomy_id
+                        WHERE   posts.post_type = 'post'
+                        AND             term_relationships.object_id IS NULL
+                        ");
+                
+                # update count in one go
+                wp_update_term_count_now($tt_ids, 'category');
+                
+                # mass do_action
+                foreach ( $post_ids as $object_id ) {
+                        do_action('set_object_terms', $object_id, $terms, $tt_ids, 'category', false);
+                }
+                
+                echo __('Set default category on orphaned posts.')
+        }
 
         function convert_categories() {
                 global $wpdb;
@@ -322 +369 @@
                         }
                 }
                 echo '</ul>';
+                
+                $this->set_default_category();
 
                 if ( ! empty($clean_term_cache) ) {
                         $clean_term_cache = array_unique(array_values($clean_term_cache));