--- uc_attribute_stock_filter.module	2009-04-13 20:35:56.000000000 -0400
+++ uc_attribute_stock_filter.module.patched	2009-04-13 20:45:11.000000000 -0400
@@ -15,40 +15,41 @@
  * Implementation of hook_nodeapi().
  */
 function uc_attribute_stock_filter_nodeapi(&$node, $op, $a3 = NULL, $a4 = NULL) {
-  switch ($op) {
-    case 'view':
 
-      // Get attribute count for this product
-      $attrib = db_fetch_object(db_query("SELECT COUNT(aid) AS count FROM {uc_product_attributes} WHERE nid = %d", $node->nid));
+  static $available = array();
 
-      // Only proceed if we have more than one attribute (otherwise we do the filtering with hook_form_alter())
-      if ($attrib->count > 1) {
-        // Grab serialized options and stock levels
-        $result = db_query("SELECT a.combination AS combination, s.stock AS stock FROM {uc_product_adjustments} a, {uc_product_stock} s WHERE a.nid = %d AND s.sku = a.model AND s.active = 1", $node->nid);
-
-        // This builds an array where each option is a key containing its available combinations as elements
-        $available = array();
-        while ($data = db_fetch_object($result)) {
-          $combo = unserialize($data->combination);
-          if ($data->stock > 0) { // Stock is available
-            foreach ($combo as $key => $option) { // Grab possible combinations
-              foreach ($combo as $avail_key => $avail_opt) {
-                if ($avail_key != $key) {
-                  $available[$option][] = $avail_opt;
-                }
+  if (($op == 'view') ||
+      (($op == 'load') && (preg_match('%^/catalog/%', request_uri())))) {
+
+    // Get attribute count for this product
+    $attrib = db_fetch_object(db_query("SELECT COUNT(aid) AS count FROM {uc_product_attributes} WHERE nid = %d", $node->nid));
+
+    // Only proceed if we have more than one attribute (otherwise we do the filtering with hook_form_alter())
+    if ($attrib->count > 1) {
+      // Grab serialized options and stock levels
+      $result = db_query("SELECT a.combination AS combination, s.stock AS stock FROM {uc_product_adjustments} a, {uc_product_stock} s WHERE a.nid = %d AND s.sku = a.model AND s.active = 1", $node->nid);
+
+      // This builds an array where each option is a key containing its available combinations as elements
+      while ($data = db_fetch_object($result)) {
+        $combo = unserialize($data->combination);
+        if ($data->stock > 0) { // Stock is available
+          foreach ($combo as $key => $option) { // Grab possible combinations
+            foreach ($combo as $avail_key => $avail_opt) {
+              if ($avail_key != $key) {
+                $available[$node->nid][$option][] = $avail_opt;
               }
             }
           }
         }
-        if (!empty($available)) { // If there are no stock levels at all, we assume stocks aren't used and skip filtering.
+      }
+      if (!empty($available)) { // If there are no stock levels at all, we assume stocks aren't used and skip filtering.
 
-          // Encode the array as JSON and add the JavaScript
-          $js_array = "var uc_asf_AvailableOptions = ". json_encode($available);
-          drupal_add_js($js_array, 'inline');
-          drupal_add_js(drupal_get_path('module', 'uc_attribute_stock_filter') .'/uc_attribute_stock_filter.js', 'module');
-        }
+        // Encode the array as JSON and add the JavaScript
+        $js_array = "var uc_asf_AvailableOptions = ". json_encode($available);
+        drupal_add_js($js_array, 'inline');
+        drupal_add_js(drupal_get_path('module', 'uc_attribute_stock_filter') .'/uc_attribute_stock_filter.js', 'module');
       }
-      break;
+    }
   }
 }
 
@@ -85,7 +86,7 @@ function uc_attribute_stock_filter_form_
       }
     }
     else if ($product_attributes->count > 0) { // The product has at least one attribute
-      $result = db_query("SELECT a.combination AS combination, s.stock AS stock FROM {uc_product_adjustments} a, {uc_product_stock} s WHERE a.nid = %d AND s.sku = a.model AND s.active = 1", arg(1));
+      $result = db_query("SELECT a.combination AS combination, s.stock AS stock FROM {uc_product_adjustments} a, {uc_product_stock} s WHERE a.nid = %d AND s.sku = a.model AND s.active = 1", $form['nid']['#value']);
 
       // This builds an array containing the available options
       $available = array();
@@ -108,6 +109,5 @@ function uc_attribute_stock_filter_form_
         }
       }
     }
-
   }
-}
\ No newline at end of file
+}