Products now get sorted in alphabetical name order in most (all?) views

include/Inventory.php

@@ -105,6 +105,7 @@ class Inventory {
         foreach($this->seen_products as $prodid) {
             $out[] = new Product($prodid);
         }
+        usort($out, ['Product', 'compare']);
         return $out;
     }
 
@@ -146,6 +147,7 @@ class Inventory {
                 $out[] = $product;
             }
         }
+        usort($out, ['Product', 'compare']);
         return $out;
     }
 }

include/Page.php

@@ -133,6 +133,8 @@ abstract class Page extends Responder {
     }
 
     final protected function build_product_table($products) {
+        usort($products, ['Product', 'compare']);
+
         $rows = '';
         foreach($products as $product) {
             $rows .= $this->build_product_row($product);
@@ -305,6 +307,7 @@ abstract class Page extends Responder {
                     $unseen[] = $product;
                 }
             }
+            usort($unseen, ['Product', 'compare']);
         } else {
             $unseen = $inventory->get_unseen_products();
             $total_count = count($unseen) + count($seen);

include/Product.php

@@ -42,6 +42,11 @@ class Product extends Entity {
         }
     }
 
+    public static function sort($prod1, $prod2) {
+        return strcmp(strtolower($prod1->get_name()),
+                      strtolower($prod2->get_name()));
+    }
+
     public function __construct($clue, $type = 'id') {
         parent::__construct();
         $search = null;