dede获取顶级栏目名称

做网站在二级页面需要获得从一级页面点进来的链接的顶级栏目名称，但dede给的标签貌似只能获得一串名称(顶级/二级/某链接)这样的，所以上网查了一些资料，找到个比较靠谱的。

1、新建一个文件叫 parentchannel.lib.php

  1 <?php
  2 
  3 /**
  4 
  5 * 父栏目调用标签
  6 
  7 *
  8 
  9 * @version $Id: parentchannel.lib.php 1 9:29 2010年7月6日Z tianya $
 10 
 11 * @package DedeCMS.Taglib
 12 
 13 * @copyright Copyright (c) 2007 - 2010, DesDev, Inc.
 14 
 15 * @license http://help.dedecms.com/usersguide/license.html
 16 
 17 * @link http://www.dedecms.com
 18 
 19 */
 20 
 21 
 22 /*>>dede>>
 23 
 24 <name>父栏目标签</name>
 25 
 26 <type>全局标记</type>
 27 
 28 <for>V55,V56,V57</for>
 29 
 30 <description>父栏目调用标签</description>
 31 
 32 <demo>
 33 
 34 {dede:parentchannel}
 35 
 36 <a href='[field:typeurl/]'>[field:typename/]</a>
 37 
 38 {/dede:parentchannel}
 39 
 40 </demo>
 41 
 42 <attributes>
 43 
 44 <iterm>typeid:指定栏目ID</iterm>
 45 
 46 </attributes>
 47 
 48 >>dede>>*/
 49 
 50 
 51 function lib_parentchannel(&$ctag,&$refObj)
 52 
 53 {
 54 
 55 global $_sys_globals,$dsql;
 56 
 57 
 58 $attlist = "row|100,nosonmsg|,col|1";
 59 
 60 FillAttsDefault($ctag->CAttribute->Items,$attlist);
 61 
 62 extract($ctag->CAttribute->Items, EXTR_SKIP);
 63 
 64 $innertext = $ctag->GetInnerText();
 65 
 66  
 67 
 68 $reid = 0;
 69 
 70 $topid = 0;
 71 
 72 //如果属性里没指定栏目id，从引用类里获取栏目信息
 73 
 74 if(empty($typeid))
 75 
 76 {
 77 
 78 if( isset($refObj->TypeLink->TypeInfos['id']) )
 79 
 80 {
 81 
 82 $typeid = $refObj->TypeLink->TypeInfos['id'];
 83 
 84 $reid = $refObj->TypeLink->TypeInfos['reid'];
 85 
 86 $topid = $refObj->TypeLink->TypeInfos['topid'];
 87 
 88 }
 89 
 90 else {
 91 
 92 $typeid = 0;
 93 
 94 }
 95 
 96 } //如果指定了栏目id，从数据库获取栏目信息
 97 
 98 else
 99 
100 {
101 
102 $row2 = $dsql->GetOne("SELECT * FROM `#@__arctype` WHERE id='$typeid' ");
103 
104 $typeid = $row2['id'];
105 
106 $reid = $row2['reid'];
107 
108 $topid = $row2['topid'];
109 
110 $issetInfos = true;
111 
112 }
113 
114 
115 $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
116 
117 FROM `#@__arctype` WHERE reid='$typeid' AND ishidden<>1 ORDER BY sortrank ASC LIMIT 1";
118 
119 $dsql->SetQuery($sql);
120 
121 $dsql->Execute();
122 
123 $totalRow = $dsql->GetTotalRow();
124 
125  
126 
127 //And id<>'$typeid'
128 
129 $row = $dsql->GetOne("SELECT id,typename,reid,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
130 
131 FROM `#@__arctype` WHERE id='$typeid' ");
132 
133 if(!is_array($row)) return '';
134 
135 if($totalRow==0){
136 
137 $typeid = $row['reid'];
138 
139 $row = $dsql->GetOne("SELECT id,typename,reid,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
140 
141 FROM `#@__arctype` WHERE id='$typeid' ");
142 
143 if(!is_array($row)) return '';
144 
145 }
146 
147 if(trim($innertext)=='') $innertext = GetSysTemplets("part_type_list.htm");
148 
149 
150 $dtp = new DedeTagParse();
151 
152 $dtp->SetNameSpace('field','[',']');
153 
154 $dtp->LoadSource($innertext);
155 
156 if(!is_array($dtp->CTags))
157 
158 {
159 
160 unset($dtp);
161 
162 return '';
163 
164 }
165 
166 else
167 
168 {
169 
170 $row['typelink'] = $row['typeurl'] = GetOneTypeUrlA($row);
171 
172 foreach($dtp->CTags as $tagid=>$ctag)
173 
174 {
175 
176 if(isset($row[$ctag->GetName()])) $dtp->Assign($tagid,$row[$ctag->GetName()]);
177 
178 }
179 
180 $revalue = $dtp->GetResult();
181 
182 unset($dtp);
183 
184 return $revalue;
185 
186 }
187 
188 }
189 
190 ?>

放到\include\taglib下

2、{dede:parentchannel}[field:typename/]{/dede:parentchannel}调用

OK!

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