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织梦让dede:channel支持调用[field:seotitle/]
发布时间:2020-06-21在开发织梦模板的时候，在调用 dede:channel标签时，需要将栏目中 seotitle中的内容也可以调用出来。默认是不支持调用的。做了一下二次开发，让channel标签支持seotitle的调用。
开发方法如下：
1、打开 include/taglib/channel.lib.php，找到如下代码：
if($type=='top') { $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `dede_arctype` WHERE reid=0 And ishidden<>1 order by sortrank asc limit 0, $line "; } else if($type=='son') { if($typeid==0) return ''; $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `dede_arctype` WHERE reid='$typeid' And ishidden<>1 order by sortrank asc limit 0, $line "; } else if($type=='self') { if($reid==0) return ''; $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath FROM `dede_arctype` WHERE reid='$reid' And ishidden<>1 order by sortrank asc limit 0, $line "; }修改为：
if($type=='top') { $sql = "SELECT id,typename,seotitle,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `dede_arctype` WHERE reid=0 And ishidden<>1 order by sortrank asc limit 0, $line "; } else if($type=='son') { if($typeid==0) return ''; $sql = "SELECT id,typename,seotitle,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `dede_arctype` WHERE reid='$typeid' And ishidden<>1 order by sortrank asc limit 0, $line "; } else if($type=='self') { if($reid==0) return ''; $sql = "SELECT id,typename,seotitle,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath FROM `dede_arctype` WHERE reid='$reid' And ishidden<>1 order by sortrank asc limit 0, $line "; }前台模板调用方法：
{dede:channel type='top' row='10'}
<li><a href='[field:typeurl/]'>[field:typename/]<br/>[field:seotitle/]</a></li>
{/dede:channel}
