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  • 为dede:likearticle添加start channelid orderby等参数

    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: include\\taglib\\likearticle.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:

    <?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 链接
    * @link 链接
    */

    /*>>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'>\\r\\n";
    }
    $dtp2 = new DedeTagParse();
    $dtp2->SetNameSpace('field', '[', ']');
    $dtp2->LoadString($innertext);
    $GLOBALS['autoindex'] = 0;
    $line = $row;
    for($i=0; $i < $line; $i++)
    {
    if($col>1) $artlist .= "<tr>\\r\\n";
    for($j=0; $j < $col; $j++)
    {
    if($col>1) $artlist .= " <td width='$colWidth'>\\r\\n";
    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()."\\r\\n";
    }
    //if hasRow
    else
    {
    $artlist .= '';
    }
    if($col>1) $artlist .= " </td>\\r\\n";
    }
    //Loop Col
    if($col>1) $i += $col - 1;
    if($col>1) $artlist .= " </tr>\\r\\n";
    }
    //loop line
    if($col>1) $artlist .= " </table>\\r\\n";
    $dsql->FreeResult("al");
    return $artlist;
    }

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