Changeset 4558 for trunk/wp-admin/export.php

Timestamp:

11/30/2006 06:15:14 PM (18 years ago)

Author:

ryan

Message:

Import/export category data. Props andy. fixes #3403

File:

• trunk/wp-admin/export.php (modified) (2 diffs)

trunk/wp-admin/export.php

@@ -61 +61 @@
 
 $posts = $wpdb->get_results("SELECT * FROM $wpdb->posts $where ORDER BY post_date_gmt ASC");
+
+$categories = (array) $wpdb->get_results("SELECT cat_ID, cat_name, category_nicename, category_description, category_parent, posts_private, links_private FROM $wpdb->categories LEFT JOIN $wpdb->post2cat ON (category_id = cat_id) LEFT JOIN $wpdb->posts ON (post_id <=> id) $where GROUP BY cat_id");
+
+function wxr_missing_parents($categories) {
+    if ( !is_array($categories) || empty($categories) )
+        return array();
+
+    foreach ( $categories as $category )
+        $parents[$category->cat_ID] = $category->category_parent;
+
+    $parents = array_unique(array_diff($parents, array_keys($parents)));
+
+    if ( $zero = array_search('0', $parents) )
+        unset($parents[$zero]);
+
+    return $parents;
+}
+
+while ( $parents = wxr_missing_parents($categories) ) {
+    $found_parents = $wpdb->get_results("SELECT cat_ID, cat_name, category_nicename, category_description, category_parent, posts_private, links_private FROM $wpdb->categories WHERE cat_ID IN (" . join(', ', $parents) . ")");
+    if ( is_array($found_parents) && count($found_parents) )
+        $categories = array_merge($categories, $found_parents);
+    else
+        break;
+}
+
+// Put them in order to be inserted with no child going before its parent
+$pass = 0;
+$passes = 1000 + count($categories);
+while ( ( $cat = array_shift($categories) ) && ++$pass < $passes ) {
+    if ( $cat->category_parent == 0 || isset($cats[$cat->category_parent]) ) {
+        $cats[$cat->cat_ID] = $cat;
+    } else {
+        $categories[] = $cat;
+    }
+}
+unset($categories);
+
+function wxr_cdata($str) {
+    if ( seems_utf8($str) == false )
+        $str = utf8_encode($str);
+
+    // $str = ent2ncr(wp_specialchars($str));
+
+    $str = "<![CDATA[$str" . ( ( substr($str, -1) == ']' ) ? ' ' : '') . "]]>";
+
+    return $str;
+}
+
+function wxr_cat_name($c) {
+    if ( empty($c->cat_name) )
+        return;
+
+    echo '<wp:cat_name>' . wxr_cdata($c->cat_name) . '</wp:cat_name>';
+}
+
+function wxr_category_description($c) {
+    if ( empty($c->category_description) )
+        return;
+
+    echo '<wp:category_description>' . wxr_cdata($c->category_description) . '</wp:category_description>';
+}
 ?>
 <!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your blog. -->
@@ -87 +149 @@
     <generator>http://wordpress.org/?v=<?php bloginfo_rss('version'); ?></generator>
     <language><?php echo get_option('rss_language'); ?></language>
+<?php if ( $cats ) : foreach ( $cats as $c ) : ?>
+    <wp:category><wp:category_nicename><?php echo $c->category_nicename; ?></wp:category_nicename><wp:category_parent><?php echo $c->category_parent ? $cats[$c->category_parent]->cat_name : ''; ?></wp:category_parent><wp:posts_private><?php echo $c->posts_private ? '1' : '0'; ?></wp:posts_private><wp:links_private><?php echo $c->links_private ? '1' : '0'; ?></wp:links_private><?php wxr_cat_name($c); ?><?php wxr_category_description($c); ?></wp:category>
+<?php endforeach; endif; ?>
     <?php do_action('rss2_head'); ?>
     <?php if ($posts) { foreach ($posts as $post) { start_wp(); ?>