Changeset 18079

Timestamp:

05/31/2011 06:13:27 AM (13 years ago)

Author:

dd32

Message:

More specific Tazonomy canonicalisation; Allows custom vars through, strips all per-taxonomy query vars. See #17174

File:

• trunk/wp-includes/canonical.php (modified) (1 diff)

trunk/wp-includes/canonical.php

@@ -155 +155 @@
             if ( $term_count <= 1 && !empty($obj->term_id) && ( $tax_url = get_term_link((int)$obj->term_id, $obj->taxonomy) ) && !is_wp_error($tax_url) ) {
                 if ( !empty($redirect['query']) ) {
+                    // Strip taxonomy query vars off the url.
+                    $qv_remove = array( 'term', 'taxonomy');
                     if ( is_category() ) {
-                        $redirect['query'] = remove_query_arg( array( 'category_name', 'category', 'cat'), $redirect['query']);
+                        $qv_remove[] = 'category_name';
+                        $qv_remove[] = 'cat';
                     } elseif ( is_tag() ) {
-                        $redirect['query'] = remove_query_arg( array( 'tag', 'tag_id'), $redirect['query']);
-                    } elseif ( is_tax() ) { // Custom taxonomies will have a custom query var, remove those too:
-                        $tax = get_taxonomy( $obj->taxonomy );
-                        if ( false !== $tax->query_var)
-                            $redirect['query'] = remove_query_arg($tax->query_var, $redirect['query']);
-                        else
-                            $redirect['query'] = remove_query_arg( array( 'term', 'taxonomy'), $redirect['query']);
+                        $qv_remove[] = 'tag';
+                        $qv_remove[] = 'tag_id';
+                    } else { // Custom taxonomies will have a custom query var, remove those too:
+                        $tax_obj = get_taxonomy( $obj->taxonomy );
+                        if ( false !== $tax_obj->query_var )
+                            $qv_remove[] = $tax_obj->query_var;
+                    }
+
+                    $rewrite_vars = array_diff( array_keys($wp_query->query), array_keys($_GET) );
+
+                    if ( !array_diff($rewrite_vars, array_keys($_GET))  ) { // Check to see if all the Query vars are coming from the rewrite, none are set via $_GET
+                        $redirect['query'] = remove_query_arg($qv_remove, $redirect['query']); //Remove all of the per-tax qv's
+
+                        // Create the destination url for this taxonomy
+                        $tax_url = parse_url($tax_url);
+                        if ( ! empty($tax_url['query']) ) { // Taxonomy accessable via ?taxonomy=..&term=.. or any custom qv..
+                            parse_str($tax_url['query'], $query_vars);
+                            $redirect['query'] = add_query_arg($query_vars, $redirect['query']);
+                        } else { // Taxonomy is accessable via a "pretty-URL"
+                            $redirect['path'] = $tax_url['path'];
+                        }
+
+                    } else { // Some query vars are set via $_GET. Unset those from $_GET that exist via the rewrite
+                        foreach ( $qv_remove as $_qv ) {
+                            if ( isset($rewrite_vars[$_qv]) ) 
+                                $redirect['query'] = remove_query_arg($_qv, $redirect['query']);
+                        }
                     }
                 }
 
-                $tax_obj = get_taxonomy( $obj->taxonomy );
-                $tax_query_vars = array_diff( array_keys( $wp_query->query ), array_keys( $_GET ), array( 'taxonomy', 'term', $tax_obj->query_var ) );
-
-                $tax_url = parse_url($tax_url);
-                if ( ! empty($tax_query_vars) ) {
-                    foreach ( array( 'taxonomy', 'term', $tax_obj->query_var ) as $qv ) {
-                        if ( !empty($wp_query->query[$qv]) )
-                            $redirect['query'] = add_query_arg($qv, $wp_query->query[$qv], $redirect['query']);
-                    }
-                        
-                } elseif ( ! empty($tax_url['query']) ) { // Custom taxonomies may only be accessable via ?taxonomy=..&term=..
-                    parse_str($tax_url['query'], $query_vars);
-                    $redirect['query'] = add_query_arg($query_vars, $redirect['query']);
-                } else { // Taxonomy is accessable via a "pretty-URL"
-                    $redirect['path'] = $tax_url['path'];
-                }
             }
         } elseif ( is_single() && strpos($wp_rewrite->permalink_structure, '%category%') !== false ) {