Changeset 6157 for trunk/wp-includes/taxonomy.php

Timestamp:

09/22/2007 06:01:08 PM (18 years ago)

Author:

ryan

Message:

Term with slug that conflicts with existing term with different parent gets a new term entry with a unique slug. see #5034

File:

• trunk/wp-includes/taxonomy.php (modified) (6 diffs)

trunk/wp-includes/taxonomy.php

@@ -708 +708 @@
         $value = apply_filters("pre_term_$field", $value, $taxonomy);
         $value = apply_filters("pre_${taxonomy}_$field", $value);
+        // Back compat filters
+        if ( 'slug' == $field )
+            $value = apply_filters('pre_category_nicename', $value);
+            
     } else if ( 'rss' == $context ) {
         $value = apply_filters("term_${field}_rss", $value, $taxonomy);
@@ -915 +919 @@
     $args = wp_parse_args($args, $defaults);
     $args['name'] = $term;
+    $args['taxonomy'] = $taxonomy;
     $args = sanitize_term($args, $taxonomy, 'db');
     extract($args, EXTR_SKIP);
@@ -937 +942 @@
         $wpdb->query("INSERT INTO $wpdb->terms (name, slug, term_group) VALUES ('$name', '$slug', '$term_group')");
         $term_id = (int) $wpdb->insert_id;
+    } else if ( is_taxonomy_hierarchical($taxonomy) && !empty($parent) ) {
+        // If the taxonomy supports hierarchy and the term has a parent, make the slug unique
+        // by incorporating parent slugs.
+        $slug = wp_unique_term_slug($slug, (object) $args);
+        $wpdb->query("INSERT INTO $wpdb->terms (name, slug, term_group) VALUES ('$name', '$slug', '$term_group')");
+        $term_id = (int) $wpdb->insert_id;
     }
 
@@ -1020 +1031 @@
 }
 
+function wp_unique_term_slug($slug, $term) {
+    global $wpdb;
+
+    // If the taxonomy supports hierarchy and the term has a parent, make the slug unique
+    // by incorporating parent slugs.
+    if ( is_taxonomy_hierarchical($term->taxonomy) && !empty($term->parent) ) {
+        $the_parent = $term->parent;
+        while ( ! empty($the_parent) ) {
+            $parent_term = get_term($the_parent, $term->taxonomy);
+            if ( is_wp_error($parent_term) || empty($parent_term) )
+                break;
+                $slug .= '-' . $parent_term->slug;
+            if ( empty($parent_term->parent) )
+                break;
+            $the_parent = $parent_term->parent;
+        }
+    }
+
+    // If we didn't get a unique slug, try appending a number to make it unique.
+    if ( $wpdb->get_var("SELECT slug FROM $wpdb->terms WHERE slug = '$slug'") ) {
+        $num = 2;
+        do {
+            $alt_slug = $slug . "-$num";
+            $num++;
+            $slug_check = $wpdb->get_var("SELECT slug FROM $wpdb->terms WHERE slug = '$alt_slug'");
+        } while ( $slug_check );
+        $slug = $alt_slug;
+    }
+
+    return $slug;
+}
+
 function wp_update_term( $term, $taxonomy, $args = array() ) {
     global $wpdb;
@@ -1042 +1085 @@
     extract($args, EXTR_SKIP);
 
-    if ( empty($slug) )
+    $empty_slug = false;
+    if ( empty($slug) ) {
+        $empty_slug = true;
         $slug = sanitize_title($name);
+    }
 
     if ( $alias_of ) {
@@ -1057 +1103 @@
     }
 
+    // Check for duplicate slug
+    $id = $wpdb->get_var("SELECT term_id FROM $wpdb->terms WHERE slug = '$slug'");
+    if ( $id && ($id != $term_id) ) {
+        // If an empty slug was passed, reset the slug to something unique.
+        // Otherwise, bail.
+        if ( $empty_slug )
+            $slug = wp_unique_term_slug($slug, (object) $args);
+        else
+            return new WP_Error('duplicate_term_slug', sprintf(__('The slug "%s" is already in use by another term'), $slug));
+    }
+
     $wpdb->query("UPDATE $wpdb->terms SET name = '$name', slug = '$slug', term_group = '$term_group' WHERE term_id = '$term_id'");