DEDE官方的dede:likearticle是利用文章中输入的关键词或者自动分词形成的关键词来关联文章，但是有时候自动生成的关键词并不精确，造成关联不准，这里我们通过自定义一个类库文件来实现精准获取相关文章
可以单用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)
在 /include/taglib/ 下添加一个liketags.lib.php 代码如下
<?phpif(!defined(‘DEDEINC’)) exit(‘Request Error!’);function lib_liketags(&$ctag,&$refObj){ global $dsql; //属性处理 $attlist="row|12,titlelen|30,infolen|250,col|1,tablewidth|100,mytypeid|0,byabs|0,imgwidth|1,imgheight|90,flag|"; FillAttsDefault($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!=”){061$dsql->Execute("me", "Select aid From `dede_taglist` where tid in($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.sitepathfrom `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.idwhere 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.sitepathfrom `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.idwhere 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.sitepathfrom `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.idwhere 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’], $row[‘namerule’],$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=” 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;}
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}
dede织梦tag keyword调用相关文章{dede:liketags}
DedeCMS调用相关文章likearticle附加自定义字段
标签： likearticle
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