dedecms织梦tag keyword调用相关文章

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 includetaglib 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'>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;  }

 

 

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}

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