给织梦的dede:channel增加可选择范围的属性 | 枫叶的网站建设博客

给织梦的dede:channel增加可选择范围的属性

2010年08月08日 ? 网站技术 ? 评论数 6 ? 被围观 998 Views+
http://www.qyuef.com/?p=100

最近做一个门户网站，在有的频道页面需要调用一些指定ID几到几的一些栏目。刚开始打算直接将链接写死在模版里。后来觉得这样对程序的扩展性不是很好。客户是不懂程序的，你不能指望他也会修改模版。于是就有了做这样一个小功能的想法。      在原来的dede:channel基础上增加了一个limit属性。 limit是起点，row是条数

使用方法：

{dede:channel type='son' limit='3' typeid='1' reid='1' row='5' "<a href='~typelink~' class='thisclass'>~typename~</a> |"}        <a href="[field:typelink/]"><span class="aaa">[field:typename/]</span></a> {/dede:channel}

将一下的代码复制到include/taglib/channel.lib.php中进行覆盖：

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function lib_channel(&$ctag,&$refObj){ global $dsql;  $attlist = "typeid|0,reid|0,row|100,col|1,type|son,currentstyle|,cacheid|,limit|0"; FillAttsDefault($ctag->CAttribute->Items,$attlist); extract($ctag->CAttribute->Items, EXTR_SKIP); $innertext = $ctag->GetInnerText(); $line = empty($row) ? 100 : $row;  $likeType = ''; //读取固定的缓存块 $cacheid = trim($cacheid); if($cacheid !='') { $likeType = GetCacheBlock($cacheid); if($likeType != '') return $likeType; }  $reid = 0; $topid = 0; //如果属性里没指定栏目id，从引用类里获取栏目信息 if(empty($typeid)) { if( isset($refObj->TypeLink->TypeInfos['id']) ) { $typeid = $refObj->TypeLink->TypeInfos['id']; $reid = $refObj->TypeLink->TypeInfos['reid']; $topid = $refObj->TypeLink->TypeInfos['topid']; } else { $typeid = 0; } } //如果指定了栏目id，从数据库获取栏目信息 else { $row2 = $dsql->GetOne("Select * From `#@__arctype` where id='$typeid' "); $typeid = $row2['id']; $reid = $row2['reid']; $topid = $row2['topid']; $issetInfos = true; }  if($type=='' || $type=='sun') $type='son'; if($innertext=='') $innertext = GetSysTemplets("channel_list.htm");  if($type=='top') { $sql = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `#@__arctype` where reid=0 And ishidden<>1 order by sortrank asc limit $limit, $line "; } else if($type=='son') { if($typeid==0) return ''; $sql = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `#@__arctype` where reid='$typeid' And ishidden<>1 order by sortrank asc limit $limit, $line "; } else if($type=='self') { if($reid==0) return ''; $sql = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `#@__arctype` where reid='$reid' And ishidden<>1 order by sortrank asc limit $limit, $line "; } //And id<>'$typeid' $needRel = false; $dtp2 = new DedeTagParse(); $dtp2->SetNameSpace('field','[',']'); $dtp2->LoadSource($innertext); //检查是否有子栏目，并返回rel提示（用于二级菜单） if(ereg(':rel', $innertext)) $needRel = true;  if(empty($sql)) return ''; $dsql->SetQuery($sql); $dsql->Execute();  $totalRow = $dsql->GetTotalRow(); //如果用子栏目模式，当没有子栏目时显示同级栏目 if($type=='son' && $reid!=0 && $totalRow==0) { $sql = "Select id,typename,typedir,isdefault,ispart,defaultname,namerule2,moresite,siteurl,sitepath From `#@__arctype` where reid='$reid' And ishidden<>1 order by sortrank asc limit $limit, $line "; $dsql->SetQuery($sql); $dsql->Execute(); } $GLOBALS['autoindex'] = 0; for($i=0;$i < $line;$i++) { if($col>1) $likeType .= "<dl>\r\n"; for($j=0; $j<$col; $j++) { if($col>1) $likeType .= "<dd>\r\n"; if($row=$dsql->GetArray()) { $row['sonids'] = $row['rel'] = ''; if($needRel) { $row['sonids'] = GetSonIds($row['id'], 0, false); if($row['sonids']=='') $row['rel'] = ''; else $row['rel'] = " rel='dropmenu{$row['id']}'"; } //处理同级栏目中，当前栏目的样式 if( ($row['id']==$typeid || ($topid==$row['id'] && $type=='top') ) && $currentstyle!='' ) { $linkOkstr = $currentstyle; $row['typelink'] = GetOneTypeUrlA($row); $linkOkstr = str_replace("~rel~",$row['rel'],$linkOkstr); $linkOkstr = str_replace("~id~",$row['id'],$linkOkstr); $linkOkstr = str_replace("~typelink~",$row['typelink'],$linkOkstr); $linkOkstr = str_replace("~typename~",$row['typename'],$linkOkstr); $likeType .= $linkOkstr; } else { $row['typelink'] = $row['typeurl'] = GetOneTypeUrlA($row); if(is_array($dtp2->CTags)) { foreach($dtp2->CTags as $tagid=>$ctag) { if(isset($row[$ctag->GetName()])) $dtp2->Assign($tagid,$row[$ctag->GetName()]); } } $likeType .= $dtp2->GetResult(); } } if($col>1) $likeType .= "</dd>\r\n"; $GLOBALS['autoindex']++; } //Loop Col if($col>1) { $i += $col - 1; $likeType .= " </dl>\r\n"; } } //Loop for $i $dsql->FreeResult(); if($cacheid !='') { WriteCacheBlock($cacheid, $likeType); } return $likeType;}