dedecms 频道标签 channel.lib.php的分析

  1 <?php
  2 /**
  3  * 获取栏目列表标签
  4  *
  5  * @version        $Id: channel.lib.php 1 9:29 2010年7月6日Z tianya $
  6  * @package        DedeCMS.Taglib
  7  * @copyright      Copyright (c) 2007 - 2010, DesDev, Inc.
  8  * @license        http://help.dedecms.com/usersguide/license.html
  9  * @link           http://www.dedecms.com
 10  */
 11  
 12 /*>>dede>>
 13 <name>频道标签</name>
 14 <type>全局标记</type>
 15 <for>V55,V56,V57</for>
 16 <description>用于获取栏目列表</description>
 17 <demo>
 18 {dede:channel type='top' row='8' currentstyle="<li><a href='~typelink~' class='thisclass'>~typename~</a> </li>"} 
 19  <li><a href='[field:typelink/]'>[field:typename/]</a> </li> 
 20 {/dede:channel}
 21 </demo>
 22 <attributes>
 23     <iterm>typeid:栏目ID</iterm> 
 24     <iterm>reid:上级栏目ID</iterm>
 25     <iterm>row:调用栏目数</iterm>
 26     <iterm>col:分多少列显示(默认为单列)</iterm>
 27     <iterm>type:son表示下级栏目,self表示同级栏目,top顶级栏目</iterm>
 28     <iterm>currentstyle:应用样式</iterm>
 29 </attributes> 
 30 >>dede>>*/
 31  
 32 function lib_channel(&$ctag,&$refObj)
 33 {
 34     global $dsql;//连接数据库
 35 
 36     $attlist = "typeid|0,reid|0,row|100,col|1,type|son,currentstyle|,cacheid|";//设置标签属性
 37     FillAttsDefault($ctag->CAttribute->Items,$attlist);//设置标签属性
 38     extract($ctag->CAttribute->Items, EXTR_SKIP);//设置标签属性
 39     $innertext = $ctag->GetInnerText();//$ctag->GetInnerText获得当前底层模板的内容
 40     $line = empty($row) ? 100 : $row;//如果当前标签没有设置row属性 则默认显示100条数据
 41     
 42     $likeType = '';
 43     //读取固定的缓存块
 44     $cacheid = trim($cacheid);
 45     if($cacheid !='') {
 46         $likeType = GetCacheBlock($cacheid);
 47         if($likeType != '') return $likeType;
 48     }
 49 
 50     $reid = 0;
 51     $topid = 0;
 52     //如果属性里没指定栏目id,从引用类里获取栏目信息
 53     if(empty($typeid))
 54     {
 55         if( isset($refObj->TypeLink->TypeInfos['id']) )
 56         {
 57             $typeid = $refObj->TypeLink->TypeInfos['id'];
 58             $reid = $refObj->TypeLink->TypeInfos['reid'];
 59             $topid = $refObj->TypeLink->TypeInfos['topid'];
 60         }
 61         else {
 62           $typeid = 0;
 63       }
 64     }
 65     //如果指定了栏目id,从数据库获取栏目信息
 66     else
 67     {
 68         $row2 = $dsql->GetOne("SELECT * FROM `#@__arctype` WHERE id='$typeid' ");
 69         $typeid = $row2['id'];
 70         $reid = $row2['reid'];
 71         $topid = $row2['topid'];
 72         $issetInfos = true;
 73     }
 74     
 75     if($type=='' || $type=='sun') $type='son';
 76     if($innertext=='') $innertext = GetSysTemplets("channel_list.htm");
 77 
 78     if($type=='top')
 79     {
 80         $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
 81           From `#@__arctype` WHERE reid=0 And ishidden<>1 order by sortrank asc limit 0, $line ";
 82     }
 83     else if($type=='son')
 84     {
 85         if($typeid==0) return '';
 86         $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
 87           From `#@__arctype` WHERE reid='$typeid' And ishidden<>1 order by sortrank asc limit 0, $line ";
 88     }
 89     else if($type=='self')
 90     {
 91         if($reid==0) return '';
 92         $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
 93             FROM `#@__arctype` WHERE reid='$reid' And ishidden<>1 order by sortrank asc limit 0, $line ";
 94     }
 95     //And id<>'$typeid'
 96     $needRel = false;
 97     $dtp2 = new DedeTagParse();
 98     $dtp2->SetNameSpace('field','[',']');
 99     $dtp2->LoadSource($innertext);
100     //检查是否有子栏目,并返回rel提示(用于二级菜单)
101     if(preg_match('#:rel#', $innertext)) $needRel = true;
102     
103     if(empty($sql)) return '';
104     $dsql->SetQuery($sql);
105     $dsql->Execute();
106     
107     $totalRow = $dsql->GetTotalRow();
108     //如果用子栏目模式,当没有子栏目时显示同级栏目
109     if($type=='son' && $reid!=0 && $totalRow==0)
110     {
111         $sql = "SELECT id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath
112             FROM `#@__arctype` WHERE reid='$reid' And ishidden<>1 order by sortrank asc limit 0, $line ";
113         $dsql->SetQuery($sql);
114       $dsql->Execute();
115     }
116     $GLOBALS['autoindex'] = 0;
117     for($i=0;$i < $line;$i++)
118     {
119         if($col>1) $likeType .= "<dl>\r\n";
120         for($j=0; $j<$col; $j++)
121         {
122             if($col>1) $likeType .= "<dd>\r\n";
123             if($row=$dsql->GetArray())
124             {
125                 $row['sonids'] = $row['rel'] = '';
126                 if($needRel)
127                 {
128                     $row['sonids'] = GetSonIds($row['id'], 0, false);
129                     if($row['sonids']=='') $row['rel'] = '';
130                     else $row['rel'] = " rel='dropmenu{$row['id']}'";
131                 }
132                 //处理同级栏目中,当前栏目的样式
133                 if( ($row['id']==$typeid || ($topid==$row['id'] && $type=='top') ) && $currentstyle!='' )
134                 {
135                     $linkOkstr = $currentstyle;
136                     $row['typelink'] = GetOneTypeUrlA($row);
137                     $linkOkstr = str_replace("~rel~",$row['rel'],$linkOkstr);
138                     $linkOkstr = str_replace("~id~",$row['id'],$linkOkstr);
139                     $linkOkstr = str_replace("~typelink~",$row['typelink'],$linkOkstr);
140                     $linkOkstr = str_replace("~typename~",$row['typename'],$linkOkstr);
141                     $likeType .= $linkOkstr;
142                 }
143                 else
144                 {
145                     $row['typelink'] = $row['typeurl'] = GetOneTypeUrlA($row);
146                     if(is_array($dtp2->CTags))
147                     {
148                         foreach($dtp2->CTags as $tagid=>$ctag)
149                         {
150                             if(isset($row[$ctag->GetName()])) $dtp2->Assign($tagid,$row[$ctag->GetName()]);
151                         }
152                     }
153                     $likeType .= $dtp2->GetResult();
154                 }
155             }
156             if($col>1) $likeType .= "</dd>\r\n";
157             $GLOBALS['autoindex']++;
158         }
159         //Loop Col
160         if($col>1)
161         {
162             $i += $col - 1;
163             $likeType .= "    </dl>\r\n";
164         }
165     }
166     //Loop for $i
167     $dsql->FreeResult();
168     if($cacheid !='') {
169         WriteCacheBlock($cacheid, $likeType);
170     }
171     return $likeType;
172 }
posted @ 2012-11-16 11:50  saws  阅读(606)  评论(0编辑  收藏  举报