dedecms中标签{dede:likearticle }{/dede:likearticle}默认不支持order by 和subway属性,因此对我们需要用此标签做自定义调用，比如用likearticle只调用点击高的文章，就实现不了，因此我们需要对该标签进行修改
源文件位置： includetagliblikearticle.lib.php
1.orderby 属性
首先获得标签传递过来的orderby的属性值
$orderby=$ctag->GetAtt('orderby');
在源代码中有这样一组代码
if( empty($arcid) || $byabs==0 ) { $orderquery = " order by arc.id desc "; } else { $orderquery = " order by ABS(arc.id - ".$arcid.") "; }
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likearticle标签默认的排序方式。赋予标签orderby属性那么这段代码就没意义了，先在源码中注释掉这段代码
直接延用默认的order by 子句变量$orderquery,这样sql语句就不用做更改了。
创建新变量 orderquery='';//mysql 查询语句中的order by子句 初始为空
然后根据传递的值做相应的判断，在这里只做一些最常用的值的判断
根据$orderby的值做不同的orderby 查询
if($orderby=='hot' || $orderby=='click') $orderquery = " order by arc.click $orderWay";
else if($orderby == 'sortrank' || $orderby=='pubdate') $orderquery = " order by arc.sortrank $orderWay";
else if($orderby == 'id') $orderquery = " order by arc.id $orderWay";
else if($orderby == 'near') $orderquery = " order by ABS(arc.id – ".$arcid.")";
else if($orderby == 'lastpost') $orderquery = " order by arc.lastpost $orderWay";
else if($orderby == 'scores') $orderquery = " order by arc.scores $orderWay";
else if($orderby == 'rand') $orderquery = " order by rand()";
else if($orderby == 'weight') $orderquery = " order by arc.weight asc";//如果没有特定设置排序则按照权重先排序
else $orderquery = " order by arc.sortrank $orderWay";
ok这样就为likearticle标签增加了完整的order by 属性
2.subday属性（标签获取subday指定的最近几天的数据）
同样先获得subday 的属性值
$subday=$ctag->GetAtt('subday');
然后做时间差计算
if($subday > 0) { $ntime = gmmktime(0, 0, 0, gmdate('m'), gmdate('d'), gmdate('Y')); $limitday = $ntime - ($subday * 24 * 3600); $subdaysql = " and arc.senddate > $limitday "; }
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然后在标签源码的两处sql查询语句中 增加$subdaysql子句判断
第一处为：
$query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule, tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id where arc.arcrank>-1 and ($keyword) $typeid $orderquery limit 0, $row"; |
修改为:
$query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
第二处为：
$query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
修改为：
$query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
做完以上更改就为likearticle标签增加了subday属性
以下为修改完之后的likearticle.lib.php的完整代码（增加了 orderby 和 subday 属性）
修改之后完整文件：
<?php if(!defined('DEDEINC')) exit('Request Error!'); /** * 自动关连文档标签 * * @version $Id: likearticle.lib.php 1 9:29 2010年7月6日Z tianya $ * @package DedeCMS.Taglib * @copyright Copyright (c) 2007 - 2010, DesDev, Inc. * @license http://help.dedecms.com/usersguide/license.html * @link http://www.dedecms.com */ /*>>dede>> <name>相关文档</name> <type>全局标记</type> <for>V55,V56,V57</for> <description>自动关连文档标签</description> <demo> {dede:likearticle row='' col='' titlelen='' infolen=''} <a href='[field:arcurl/]'>[field:title/]</a> {/dede:likearticle} </demo> <attributes> <iterm>col:分多少列显示（默认为单列）</iterm> <iterm>row:返回文档列表总数</iterm> <iterm>titlelen:标题长度 等同于titlelength</iterm> <iterm>infolen:表示内容简介长度 等同于infolength</iterm> <iterm>mytypeid:手工指定要限定的栏目id，用,分开表示多个</iterm> <iterm>innertext:单条记录样式(指标签中间的内容)</iterm> </attributes> >>dede>>*/ function lib_likearticle(&$ctag,&$refObj) { global $dsql; //属性处理 $attlist="row|12,titlelen|28,infolen|150,col|1,tablewidth|100,mytypeid|0,byabs|0,imgwidth|120,imgheight|90<span style="color:#ff0000;">,start|0,orderby|null,inword|*,channelid|*</span>"; FillAttsDefault($ctag->CAttribute->Items,$attlist); extract($ctag->CAttribute->Items, EXTR_SKIP); $revalue = ''; if(empty($tablewidth)) $tablewidth = 100; if(empty($col)) $col = 1; $colWidth = ceil(100/$col); $tablewidth = $tablewidth."%"; $colWidth = $colWidth."%"; $ids = array(); $tids = array(); if(!empty($refObj->Fields['tags'])) { $keyword = $refObj->Fields['tags']; } else { $keyword = ( !empty($refObj->Fields['keywords']) ? $refObj->Fields['keywords'] : '' ); } $typeid = ( !empty($mytypeid) ? $mytypeid : 0 ); if(empty($typeid)) { if(!empty($refObj->Typelink->TypeInfos['reid'])) { $typeid = $refObj->Typelink->TypeInfos['reid']; } else { if(!empty($refObj->Fields['typeid'])) $typeid = $refObj->Fields['typeid']; } } if( !empty($typeid) && !preg_match('#,#', $typeid) ) { $typeid = GetSonIds($typeid); } $limitRow = $row - count($ids); $keyword = ''; <span style="color:#ff0000;">if (empty($refObj->Fields['keywords']) && (! empty($inword)) && ($inword !='*') ) { $refObj->Fields['keywords'] = $inword; }</span> if(!empty($refObj->Fields['keywords'])) { $keywords = explode(',' , trim($refObj->Fields['keywords'])); $keyword = ''; $n = 1; foreach($keywords as $k) { if($n > 3) break; if(trim($k)=='') continue; else $k = addslashes($k); $keyword .= ($keyword=='' ? " CONCAT(arc.keywords,' ',arc.title) LIKE '%$k%' " : " OR CONCAT(arc.keywords,' ',arc.title) LIKE '%$k%' "); $n++; } } $arcid = (!empty($refObj->Fields['id']) ? $refObj->Fields['aid'] : 0); if( empty($arcid) || $byabs==0 ) { <span style="color:#ff6666;">switch ($orderby) {//只能使用指定的列名 case 'typeid': case 'typeid2': case 'sortrank': case 'channel': case 'arcrank': case 'click': case 'title': case 'shorttitle': case 'writer': case 'pubdate': case 'senddate': case 'keywords': case 'goodpost': case 'badpost': case 'notpost': $orderby = 'arc.' . $orderby ;//连接,要允许使用连接表必须修改 break; default: $orderby = 'arc.id'; }</span> $orderquery = " ORDER BY <span style="color:#ff0000;">{$orderby}</span> desc "; } else { $orderquery = " ORDER BY ABS(arc.id - ".$arcid.") "; } <span style="color:#ff0000;">$start = (empty($start)?0:$start); $channel_id = ''; //echo '<br>'.$channelid.'<br>'; if ( (!empty($channelid)) && preg_match("/^-?d+(,-?d+)*$/",$channelid) ) {//指定频道,必须是整数序列 $channel_id = " channel in($channelid) and "; } </span> if($keyword != '') { if(!empty($typeid)) { $typeid = " AND arc.typeid IN($typeid) AND arc.id<>$arcid "; } $query = "SELECT arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule, tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath FROM `dede_archives` arc LEFT JOIN `dede_arctype` tp ON arc.typeid=tp.id where<span style="color:#ff0000;"> $channel_id </span> arc.arcrank>-1 AND ($keyword) $typeid $orderquery limit <span style="color:#ff0000;">$start</span>, $row"; } else { if(!empty($typeid)) { $typeid = " arc.typeid IN($typeid) AND arc.id<>$arcid "; } $query = "SELECT arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule, tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath FROM `dede_archives` arc LEFT JOIN `dede_arctype` tp ON arc.typeid=tp.id WHERE <span style="color:#ff0000;">$channel_id</span> arc.arcrank>-1 AND $typeid $orderquery limit <span style="color:#ff0000;">$start</span>,$row"; } // exit($query); $innertext = trim( $ctag->GetInnerText() ); if($innertext=='') $innertext = GetSysTemplets('part_arclist.htm'); $dsql->SetQuery($query); $dsql->Execute('al'); $artlist = ''; if($col > 1) { $artlist = "<table width='$tablewidth' border='0' cellspacing='0' cellpadding='0'>rn"; } $dtp2 = new DedeTagParse(); $dtp2->SetNameSpace('field', '[', ']'); $dtp2->LoadString($innertext); $GLOBALS['autoindex'] = 0; $line = $row; for($i=0; $i < $line; $i++) { if($col>1) $artlist .= "<tr>rn"; for($j=0; $j < $col; $j++) { if($col>1) $artlist .= " <td width='$colWidth'>rn"; if($row = $dsql->GetArray("al")) { $ids[] = $row['id']; //处理一些特殊字段 $row['info'] = $row['infos'] = cn_substr($row['description'],$infolen); $row['id'] = $row['id']; if($row['corank'] > 0 && $row['arcrank']==0) { $row['arcrank'] = $row['corank']; } $row['filename'] = $row['arcurl'] = GetFileUrl($row['id'],$row['typeid'],$row['senddate'],$row['title'],$row['ismake'], $row['arcrank'],$row['namerule'],$row['typedir'],$row['money'],$row['filename'],$row['moresite'],$row['siteurl'],$row['sitepath']); $row['typeurl'] = GetTypeUrl($row['typeid'],$row['typedir'],$row['isdefault'],$row['defaultname'],$row['ispart'], $row['namerule2'],$row['moresite'],$row['siteurl'],$row['sitepath']); if($row['litpic'] == '-' || $row['litpic'] == '') { $row['litpic'] = $GLOBALS['cfg_cmspath'].'/images/defaultpic.gif'; } if(!preg_match("#^http://#i", $row['litpic']) && $GLOBALS['cfg_multi_site'] == 'Y') { $row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic']; } $row['picname'] = $row['litpic']; $row['stime'] = GetDateMK($row['pubdate']); $row['typelink'] = "<a href='".$row['typeurl']."'>".$row['typename']."</a>"; $row['image'] = "<img src='".$row['picname']."' border='0' width='$imgwidth' height='$imgheight' alt='".preg_replace("#['><]#","",$row['title'])."'>"; $row['imglink'] = "<a href='".$row['filename']."'>".$row['image']."</a>"; $row['fulltitle'] = $row['title']; $row['title'] = cn_substr($row['title'], $titlelen); if($row['color']!='') $row['title'] = "<font color='".$row['color']."'>".$row['title']."</font>"; if(preg_match('#b#', $row['flag'])) $row['title'] = "<strong>".$row['title']."</strong>"; $row['textlink'] = "<a href='".$row['filename']."'>".$row['title']."</a>"; $row['plusurl'] = $row['phpurl'] = $GLOBALS['cfg_phpurl']; $row['memberurl'] = $GLOBALS['cfg_memberurl']; $row['templeturl'] = $GLOBALS['cfg_templeturl']; if(is_array($dtp2->CTags)) { foreach($dtp2->CTags as $k=>$ctag) { if($ctag->GetName()=='array') { $dtp2->Assign($k,$row); } else { if(isset($row[$ctag->GetName()])) $dtp2->Assign($k,$row[$ctag->GetName()]); else $dtp2->Assign($k,''); } } $GLOBALS['autoindex']++; } $artlist .= $dtp2->GetResult()."rn"; } //if hasRow else { $artlist .= ''; } if($col>1) $artlist .= " </td>rn"; } //Loop Col if($col>1) $i += $col - 1; if($col>1) $artlist .= " </tr>rn"; } //loop line if($col>1) $artlist .= " </table>rn"; $dsql->FreeResult("al"); return $artlist; }
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