Index: branches/version-2_5-dev/data/class/SC_Query.php
===================================================================
--- branches/version-2_5-dev/data/class/SC_Query.php	(revision 19746)
+++ branches/version-2_5-dev/data/class/SC_Query.php	(revision 19755)
@@ -547,5 +547,5 @@
      */
     function max($col, $table, $where = "", $arrval = array()) {
-        $ret = $this->get($table, "MAX($col)", $where, $arrval);
+        $ret = $this->get("MAX($col)", $table, $where, $arrval);
         return $ret;
     }
@@ -561,5 +561,5 @@
      */
     function min($col, $table, $where = "", $arrval = array()) {
-        $ret = $this->get($table, "MIN($col)", $where, $arrval);
+        $ret = $this->get("MIN($col)", $table, $where, $arrval);
         return $ret;
     }
Index: branches/version-2_5-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Class.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Class.php	(revision 19732)
+++ branches/version-2_5-dev/data/class/pages/admin/products/LC_Page_Admin_Products_Class.php	(revision 19755)
@@ -68,5 +68,5 @@
     function action() {
         $objSess = new SC_Session();
-        $objQuery = new SC_Query();
+        $objQuery =& SC_Query::getSingletonInstance();
         $objDb = new SC_Helper_DB_Ex();
 
@@ -102,5 +102,4 @@
         case 'delete':
             $objDb->sfDeleteRankRecord("dtb_class", "class_id", $_POST['class_id'], "", true);
-            $objQuery = new SC_Query();
             $objQuery->delete("dtb_classcategory", "class_id = ?", $_POST['class_id']);
             // 再表示
@@ -149,5 +148,5 @@
     /* DBへの挿入 */
     function lfInsertClass($arrData) {
-        $objQuery = new SC_Query();
+        $objQuery =& SC_Query::getSingletonInstance();
         // INSERTする値を作成する。
         $sqlval['name'] = $arrData['name'];
@@ -165,5 +164,5 @@
     /* DBへの更新 */
     function lfUpdateClass($arrData) {
-        $objQuery = new SC_Query();
+        $objQuery =& SC_Query::getSingletonInstance();
         // UPDATEする値を作成する。
         $sqlval['name'] = $arrData['name'];
@@ -195,5 +194,5 @@
 
         if(!isset($objErr->arrErr['name'])) {
-            $objQuery = new SC_Query();
+            $objQuery =& SC_Query::getSingletonInstance();
             $arrRet = $objQuery->select("class_id, name", "dtb_class", "del_flg = 0 AND name = ?", array($_POST['name']));
             // 編集中のレコード以外に同じ名称が存在する場合
Index: branches/version-2_5-dev/data/class/pages/admin/products/LC_Page_Admin_Products_ProductClass.php
===================================================================
--- branches/version-2_5-dev/data/class/pages/admin/products/LC_Page_Admin_Products_ProductClass.php	(revision 19731)
+++ branches/version-2_5-dev/data/class/pages/admin/products/LC_Page_Admin_Products_ProductClass.php	(revision 19755)
@@ -514,5 +514,5 @@
         if (NOSTOCK_HIDDEN === true) {
             // 件数カウントバッチ実行
-            //$objDb->sfCategory_Count($objQuery);
+            $objDb->sfCategory_Count($objQuery);
         }
     }
@@ -535,6 +535,6 @@
         if(SC_Utils_Ex::isBlank($class_id2)) {
             $table = "dtb_classcategory T1 ";
-            $objQuery->setWhere("T1.class_id = ?")
-                     ->setOrder("T1.rank DESC");
+            $objQuery->setWhere("T1.class_id = ?");
+            $objQuery->setOrder("T1.rank DESC");
             $val = array($class_id1);
         } else {
@@ -545,6 +545,6 @@
                 . "T2.rank AS rank2";
             $table = "dtb_classcategory AS T1, dtb_classcategory AS T2";
-            $objQuery->setWhere("T1.class_id = ? AND T2.class_id = ?")
-                     ->setOrder("T1.rank DESC, T2.rank DESC");
+            $objQuery->setWhere("T1.class_id = ? AND T2.class_id = ?");
+            $objQuery->setOrder("T1.rank DESC, T2.rank DESC");
             $val = array($class_id1, $class_id2);
         }
@@ -617,5 +617,9 @@
     function getProductsClass($product_id) {
         $objQuery =& SC_Query::getSingletonInstance();
-        return $objQuery->getRow("*", "dtb_products_class", "product_id = ?", array($product_id));
+        $col = <<< __EOS__
+            product_id, product_code, price01, price02, stock,
+            stock_unlimited, point_rate
+__EOS__;
+        return $objQuery->getRow($col, "dtb_products_class", "product_id = ?", array($product_id));
     }