自定义模型图片字段优化

src/system/taglib/channel/img.lib.php

@@ -1,5 +1,5 @@
 <?php
-if (!defined('DEDEINC')) exit ('dedebiz');
+if (!defined('DEDEINC')) exit('dedebiz');
 /**
  * 图片标签
  *
@@ -18,6 +18,10 @@ function ch_img($fvalue, &$arcTag, &$refObj, $fname = '')
         $dtp->Clear();
         return $fvalue;
     }
+    if (count($dtp->CTags) == 0) {
+        $dtp->Clear();
+        return $fvalue;
+    }
     $pagestyle = $cfg_album_style;
     $maxwidth = $cfg_album_width;
     $ddmaxwidth = $cfg_album_ddwidth;
@@ -58,11 +62,16 @@ function ch_img($fvalue, &$arcTag, &$refObj, $fname = '')
         $pagesize = 12;
     }
     $aid = $refObj->ArcID;
-    $row = $refObj->dsql->GetOne("SELECT title FROM `#@__archives` WHERE `id` = '$aid';");
+    if ($refObj->ChannelInfos['issystem'] == '-1') {
+        $row = $refObj->dsql->GetOne("SELECT title FROM `{$refObj->ChannelInfos['addtable']}` WHERE `aid` = '$aid';");
+    } else {
+        $row = $refObj->dsql->GetOne("SELECT title FROM `#@__archives` WHERE `id` = '$aid';");
+    }
     $title = $row['title'];
     $revalue = '';
     $GLOBAL['photoid'] = 0;
     foreach ($dtp->CTags as $ctag) {
+        
         if ($ctag->GetName() == "img") {
             $fields = $ctag->CAttribute->Items;
             $fields['text'] = str_replace("'", "", $ctag->GetAtt('text'));