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摘要:官方的dede:likearticle并没有那么精准的输出相关文章,下面我们自定义一个类库文件来实现精准获取相关文章
官方的dede:likearticle并没有那么精准的输出相关文章,下面我们自定义一个类库文件来实现精准获取相关文章
单用tag来调用相关文章,也可用tag+keyword来调用相关文章(默认tag优先于keyword,可以自己排序)非常适合SEO
在 \include\taglib\ 下添加一个liketags.lib.php 代码如下
- <?php
- if(!defined('DEDEINC')) exit('Request Error!');
- function lib_liketags(&$ctag,&$refObj)
- {
- global $dsql;
-
- //属性处理
- $attlist="row|12,titlelen|30,infolen|250,col|1,tablewidth|100,mytypeid|0,byabs|0,imgwidth|120,imgheight|90,flag|";
- FillAttsDefault($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."%";
- $orwheres = '';
- if($flag != '') {
- $flags = explode(',', $flag);
- for($i=0; isset($flags[$i]); $i++) $orwheres .= " AND FIND_IN_SET('{$flags[$i]}', arc.flag)>0 ";
- }
- $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);
- }
-
- if(!empty($refObj->Fields['tags']) && $eregtype != 'keyword' )
- {
- $tags = explode(',', addslashes($refObj->Fields['tags']));
- $getsql = " tag like '".join("' OR tag like '", $tags)."' ";
- $dsql->Execute('me', "Select * From `dede_tagindex` where $getsql ");
- while($arow = $dsql->GetArray('me'))
- {
- $tids[] = $arow['id'];
- }
- $tid = join(',', $tids);
- if($tid!='')
- {
- $dsql->Execute("me", "Select aid From `dede_taglist` where tid in($tid) And arcrank > -1 group by aid order by aid desc");
- while($arow = $dsql->GetArray("me"))
- {
- $ids[] = $arow['aid'];
- $arcid = $refObj->Fields['aid'];
- }
- }
- }
- if($eregtype == 'tag' && count($ids) == 0 )
- {
- return;
- }
- else
- {
- if(count($ids) > 0)
- {
- if(!empty($typeid))
- {
- $typeid = " And arc.typeid in($typeid) And arc.id<>$arcid ";
- }
- $idsStr = join(',', $ids);
- $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
- tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
- from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id
- where arc.arcrank>-1 and arc.id in($idsStr) $typeid order by arc.id desc limit 0, $row";
- }
- else
- {
- $limitRow = $row - count($ids);
- $keyword = '';
- if(!empty($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 )
- {
- $orderquery = " order by arc.id desc ";
- }
- else
- {
- $orderquery = " order by ABS(arc.id - ".$arcid.") ";
- }
- if($keyword != '')
- {
- if(!empty($typeid))
- {
- $typeid = " And arc.typeid in($typeid) And arc.id<>$arcid ";
- }
- $query = "Select arc.*,tp.typedir,tp.typename,tp.corank,tp.isdefault,tp.defaultname,tp.namerule,
- tp.namerule2,tp.ispart,tp.moresite,tp.siteurl,tp.sitepath
- from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id
- where arc.arcrank>-1 and ($keyword) $typeid $orderquery limit 0, $row";
- }
- else
- {
- if(!empty($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 arc.arcrank>-1 and $typeid $orderquery limit 0, $row";
- }
- }
- }
- $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;
- }
复制代码
前台模板调用
- {dede:liketags row='3' mytypeid='6' eregtype='all|tag|keyword' titlelen='250'infolen='250'}
- <li>
- <a href="[field:arcurl/]" title="[field:title/]" target="_blank">
- <div class="list-img">
- <img src="[field:litpic/]" alt="[field:title/]"/>
- </div>
- <div class="list-info">
- <p class="title">[field:title/]</p>
- <p class="meta">[field:description /]</p>
- </div>
- </a>
- </li>
- {/dede:liketags}
复制代码
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