为织梦dede:likearticle添加start channelid orderby等参数的方法

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.") ";  }  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 > $limitday ";     }  然后在标签源码的两处sql查询语句中 增加$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:  $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,             tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath              from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id              where arc.arcrank>-1 and ($keyword) $typeid $subdaysql $orderquery limit 0, $row";  第二处为:  $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 $typeid $orderquery limit 0, $row";  修改为:  $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 $typeid $subdaysql $orderquery limit 0, $row";  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:     查看源码打印代码帮助  <?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       $attlist="row|12,titlelen|28,infolen|150,col|1,tablewidth|100,mytypeid|0,byabs|0,imgwidth|120,imgheight|90<span >,start|0,orderby|null,inword|*,channelid|*</span>";       FillAttsDefault($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);       $keyword = '';       <span >if (empty($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) || $byabs==0 )       {                    <span >switch ($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>                    $orderquery = " ORDER BY <span >{$orderby}</span> desc ";            }       else {           $orderquery = " ORDER BY ABS(arc.id - ".$arcid.") ";       }                <span >$start = (empty($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 > $channel_id </span> arc.arcrank>-1 AND ($keyword)  $typeid $orderquery limit <span >$start</span>, $row";       }       else       {               if(!empty($typeid)) {                       $typeid = " arc.typeid IN($typeid) AND arc.id<>$arcid ";               }               $query = "SELECT arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,                     tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath                     FROM `dede_archives` arc LEFT JOIN `dede_arctype` tp ON arc.typeid=tp.id                    WHERE <span >$channel_id</span> arc.arcrank>-1 AND  $typeid $orderquery limit <span >$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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