源起网——织梦文章tag标签或keyword关键字调用相关文章

源起网——织梦文章tag标签或keyword关键字调用相关文章，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，支持直接输出自定义字段，支持flag文章属性，非常适合SEO

eregtype='all|tag|keyword'，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 文件代码如下

if(!defined('DEDEINC')) exit('Request Error!');

function lib_liketags(&$ctag,&$refObj)

{

  global $dsql,$envs;

  //属性处理

  $attlist="row|12,titlelen|30,infolen|250,col|1,tablewidth|100,typeid|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'] : '' );

  }

  $typeid = ( !empty($typeid) ? $typeid : 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'];

}

}

}

//获得附加表的相关信息

$addField = "";

$addJoin = "";

if(is_object($refObj->ChannelUnit))

{

$addtable  = $refObj->ChannelUnit->ChannelInfos['addtable'];

if($addtable!="")

{

$addJoin = " LEFT JOIN $addtable ON arc.id = ".$addtable.".aid ";

$addField = "";

$fields = explode(",",$refObj->ChannelUnit->ChannelInfos['listfields']);

foreach($fields as $k=>$v)

{

$nfields[$v] = $k;

}

foreach($refObj->ChannelUnit->ChannelFields as $k=>$arr)

{

if(isset($nfields[$k]))

{

if(!empty($arr['rename']))

{

$addField .= ",".$addtable.".".$k." as ".$arr['rename'];

}

else

{

$addField .= ",".$addtable.".".$k;

}

}

}

}

}

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 $addField

from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin

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 $addField

from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin

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 $addField

from `dede_archives` arc left join `dede_arctype` tp on arc.typeid=tp.id $addJoin

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 = "";

  }

  $dtp2 = new DedeTagParse();

  $dtp2->SetNameSpace('field', '[', ']');

  $dtp2->LoadString($innertext);

  $GLOBALS['autoindex'] = 0;

  $line = $row;

  for($i=0; $i < $line; $i++)

  {

      if($col>1) $artlist .= "";

      for($j=0; $j < $col; $j++)

      {

          if($col>1) $artlist .= "    ";

          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']);

              $row['typelink'] = "".$row['typename']."";

              $row['image'] = "

              $row['imglink'] = "".$row['image']."";

              $row['fulltitle'] = $row['title'];

              $row['title'] = cn_substr($row['title'], $titlelen);

              if($row['color']!='') $row['title'] = "".$row['title']."";

              if(preg_match('#b#', $row['flag'])) $row['title'] = "".$row['title']."";

              $row['textlink'] = "".$row['title']."";

              $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();

          }

          //if hasRow

          else

          {

              $artlist .= '';

          }

          if($col>1) $artlist .= "    ";

      }

      //Loop Col

      if($col>1) $i += $col - 1;

      if($col>1) $artlist .= "    ";

  }

  //loop line

  if($col>1) $artlist .= "    ";

  $dsql->FreeResult("al");

  return $artlist;

}

前台模板标签调用写法

{/dede:liketags}

typeid='6' 可指定栏目

flag='c' 可指定文章属性调用，例如 推荐[c] 头条[h]

¥[field:jiage /]元 自定义字段直接写即可，不需要像dede:arclist那样加channelid='' addfields=''