code review by fei.hong : do merge produt detail page limit code

@@ -761,6 +761,7 @@ class DetailModel
 
         do {
             $productData = DetailData::limitProductData($uid, $productCode);
+
             if (empty($productData) || empty($productData['data'])) {
                 break;
             }
@@ -775,12 +776,22 @@ class DetailModel
             $result['description'] = $product['description'];
 
             // 附件
-            if (isset($product['attachment'])) {
-                foreach ($product['attachment'] as $item) {
-                    $result['attaches'][] = self::procLimitProductAttach($item);
+            if (!isset($product['attachment'])) {
+                break;
+            }
+
+            $result['attaches'] = array();
+            foreach ($product['attachment'] as $item) {
+                if ($item['isDefault'] === 1) { // 排除默认图片
+                    continue;
                 }
+
+                $result['attaches'][] = self::procLimitProductAttach($item);
             }
 
+            if(count($result['attaches']) > 1) {
+                Helpers::sortArrByField($result['attaches'], 'orderBy', true);
+            }
         } while (false);
 
         return $result;
@@ -801,31 +812,27 @@ class DetailModel
                 $result['img'] = array(
                     'attachUrl' => Helpers::getImageUrl($attachment['attachUrl'], 750, ''),
                     'attachName' => $attachment['attachName'],
-                    'intro' => $attachment['intro'],
-                    'orderBy' => $attachment['orderBy']
+                    'intro' => $attachment['intro']
                 );
+                $result['orderBy'] = $attachment['orderBy'];
                 break;
             case 2: // 视频
                 $result['video'] = array(
                     'attachUrl' => $attachment['attachUrl'],
-                    'orderBy' => $attachment['orderBy'],
                     'img' => Helpers::getImageUrl($attachment['intro'], 750, '')
                 );
+                $result['orderBy'] = $attachment['orderBy'];
                 break;
             case 3: // 文本类型
                 $result['text'] = array(
-                    'intro' => $attachment['intro'],
-                    'orderBy' => $attachment['orderBy']
+                    'intro' => $attachment['intro']
                 );
+                $result['orderBy'] = $attachment['orderBy'];
                 break;
             default:
                 break;
         }
 
-        if(count($result) > 1) {
-            Helpers::sortArrByField($result, 'orderBy', true, SORT_NUMERIC);
-        }
-
         return $result;
     }