Merge pull request #282 from RivianTrackr/sort-rolling-resistance

Add "Rolling Resistance: Low → High" sort option (v1.50.1)

Author: RivianTrackr

CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to the Rivian Tire Guide plugin will be documented in this f
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
+## [1.50.1] - 2026-06-17
+
+### Added
+- **"Rolling Resistance: Low → High" sort option.** The tire-guide sort dropdown can now order tires by their estimated rolling-resistance coefficient (`roamer_crr`), lowest first. Tires without a Crr estimate sort to the bottom in both client-side and server-side pagination (`(roamer_crr = 0) ASC, roamer_crr ASC`). Added to the allowed-sort lists (client URL state, AJAX, and the shortcode `sort=""` attribute); mirrors the existing "Real-World Efficiency" sort and, like it, is not exposed in the REST API sort enum.
+
 ## [1.50.0] - 2026-06-17
 
 ### Added

frontend/js/modules/filters.js

@@ -491,6 +491,16 @@ function applySorting(sortOption) {
         return bVal - aVal;
       });
       break;
+    case "rolling-resistance":
+      state.filteredRows.sort((a, b) => {
+        const aVal = parseFloat(a[28]) || 0;
+        const bVal = parseFloat(b[28]) || 0;
+        // Tires without a Crr estimate go to bottom; lower Crr is better.
+        if (aVal > 0 && bVal === 0) return -1;
+        if (aVal === 0 && bVal > 0) return 1;
+        return aVal - bVal;
+      });
+      break;
   }
 }
 

frontend/js/modules/validation.js

@@ -26,6 +26,7 @@ export const NUMERIC_BOUNDS = {
 
 export const ALLOWED_SORT_OPTIONS = [
   "efficiencyGrade", "roamer-efficiency",
+  "rolling-resistance",
   "price-asc", "price-desc",
   "warranty-desc", "weight-asc",
   "reviewed", "rating-desc",

frontend/js/rivian-tires.min.js

@@ -105,6 +105,7 @@
         <select id="sortBy" aria-label="Sort tires by">
         <option value="efficiencyGrade">Efficiency Grade</option>
         <option value="roamer-efficiency" selected>Real-World Efficiency</option>
+        <option value="rolling-resistance">Rolling Resistance: Low → High</option>
         <option value="most-reviewed">Most Reviewed</option>
         <option value="newest">Newest Added</option>
         <option value="price-asc">Price: Low → High</option>

frontend/templates/tire-guide.php

@@ -39,6 +39,7 @@ class RTG_Ajax {
         'weight-asc',
         'newest',
         'roamer-efficiency',
+        'rolling-resistance',
     );
 
     /**

includes/class-rtg-ajax.php

@@ -659,6 +659,8 @@ private static function build_filter_sort_clause( $sort ) {
             'weight-asc'        => 'weight_lb ASC',
             'newest'            => 'created_at DESC',
             'roamer-efficiency' => 'roamer_efficiency DESC',
+            // Lower Crr is better; tires without an estimate (0) sort last.
+            'rolling-resistance' => '(roamer_crr = 0) ASC, roamer_crr ASC',
         );
         return $sort_map[ $sort ] ?? 'efficiency_score DESC';
     }

includes/class-rtg-database.php

@@ -153,7 +153,7 @@ private function enqueue_assets( $shortcode_atts = array() ) {
             $prefilters['category'] = sanitize_text_field( $shortcode_atts['category'] );
         }
         if ( ! empty( $shortcode_atts['sort'] ) ) {
-            $allowed_sorts = array( 'efficiencyGrade', 'price-asc', 'price-desc', 'warranty-desc', 'weight-asc', 'newest', 'rating-desc', 'most-reviewed' );
+            $allowed_sorts = array( 'efficiencyGrade', 'rolling-resistance', 'price-asc', 'price-desc', 'warranty-desc', 'weight-asc', 'newest', 'rating-desc', 'most-reviewed' );
             $sort_val = sanitize_text_field( $shortcode_atts['sort'] );
             if ( in_array( $sort_val, $allowed_sorts, true ) ) {
                 $prefilters['sort'] = $sort_val;

includes/class-rtg-frontend.php

@@ -2,7 +2,7 @@
 /**
  * Plugin Name: Rivian Tire Guide
  * Description: Interactive tire guide for Rivian vehicles with filtering, comparison, and ratings.
- * Version: 1.50.0
+ * Version: 1.50.1
  * Author: RivianTrackr
  * Text Domain: rivian-tire-guide
  * Requires at least: 5.8
@@ -14,7 +14,7 @@
     exit;
 }
 
-define( 'RTG_VERSION', '1.50.0' );
+define( 'RTG_VERSION', '1.50.1' );
 define( 'RTG_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
 define( 'RTG_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
 define( 'RTG_PLUGIN_FILE', __FILE__ );