添加限购商品分享详情页面中附件的视频图片字段

Code Review By Rock Zhang

@@ -800,7 +800,7 @@ class DetailModel
         switch(intval($attachment['attachType'])) {
             case 1: // 大图文字
                 $result['img'] = array(
-                    'attachUrl' => $attachment['attachUrl'],
+                    'attachUrl' => Helpers::getImageUrl($attachment['attachUrl'], 290, 200),
                     'attachName' => $attachment['attachName'],
                     'intro' => $attachment['intro'],
                     'orderBy' => $attachment['orderBy']
@@ -809,7 +809,8 @@ class DetailModel
             case 2: // 视频
                 $result['video'] = array(
                     'attachUrl' => $attachment['attachUrl'],
-                    'orderBy' => $attachment['orderBy']
+                    'orderBy' => $attachment['orderBy'],
+                    'img' => Helpers::getImageUrl($attachment['intro'], 290, 200)
                 );
                 break;
             case 3: // 文本类型