我在使用织梦dedecms的分类信息的时候需要添加联动属性，结果去添加联动属性的时候，发现只可以添加一级联动和三级联动。
二级联动无法添加了。
在自己的5.6的后台添加的时候，发现是可以的。估计又是5.7版本的bug了。
首先我们找到我们的模板源码下面的 dede/stepselect_main.php
将这段代码
else if($action=='addenum_save') { if(empty($ename) || empty($egroup)) { Showmsg("类别名称或组名称不能为空！","-1"); exit(); } if($issign == 1 || $topvalue == 0) { $enames = explode(',', $ename); foreach($enames as $ename) { $arr = $dsql->GetOne("SELECT * FROM `dede_sys_enum` WHERE egroup='$egroup' AND (evalue MOD 500)=0 ORDER BY disorder DESC "); if(!is_array($arr)) $disorder = $evalue = ($issign==1 ? 1 : 500); else $disorder = $evalue = $arr['disorder'] + ($issign==1 ? 1 : 500); $dsql->ExecuteNoneQuery("INSERT INTO `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`) VALUES('$ename','$evalue','$egroup','$disorder','$issign'); "); } WriteEnumsCache($egroup); ShowMsg("成功添加枚举分类！".$dsql->GetError(), $ENV_GOBACK_URL); exit(); } else if ($issign == 2 && $topvalue != 0) { $minid = $topvalue; $maxnum = 500; // 三级子类最多500个 $enames = explode(',', $ename); foreach ($enames as $ename) { $arr = $dsql->GetOne("SELECT * FROM `dede_sys_enum` WHERE egroup='$egroup' AND evalue LIKE '$topvalue.%%%' ORDER BY evalue DESC "); if(!is_array($arr)) { $disorder = $minid; $evalue = $minid.'.001'; } else { $disorder = $minid; preg_match("#([0-9]{1,}).([0-9]{1,})#", $arr['evalue'], $matchs); $addvalue = $matchs[2] + 1; $addvalue = sprintf("d", $addvalue); $evalue = $matchs[1].'.'.$addvalue; } $sql = "INSERT INTO `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`) VALUES('$ename','$evalue','$egroup','$disorder','$issign'); "; // echo $sql;exit; $dsql->ExecuteNoneQuery($sql); } // echo $minid; WriteEnumsCache($egroup); ShowMsg("成功添加枚举分类！", $ENV_GOBACK_URL); exit(); } else { $minid = $topvalue; $maxid = $topvalue + 500; $enames = explode(',', $ename); foreach($enames as $ename) { $arr = $dsql->GetOne("SELECT * FROM `dede_sys_enum` WHERE egroup='$egroup' AND evalue>$minid AND evalue<$maxid ORDER BY evalue DESC "); if(!is_array($arr)) { $disorder = $evalue = $minid+1; } else { $disorder = $arr['disorder']+1; $evalue = $arr['evalue']+1; } $dsql->ExecuteNoneQuery("INSERT INTO `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`) VALUES('$ename','$evalue','$egroup','$disorder','$issign'); "); } WriteEnumsCache($egroup); ShowMsg("成功添加枚举分类！", $ENV_GOBACK_URL); exit(); } }
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替换为：
else if($action=='addenum_save') { if(empty($ename) || empty($egroup)) { Showmsg("类别名称或组名称不能为空！","-1"); exit(); } if($issign==1 || $topvalue==0) { $enames = explode(',', $ename); foreach($enames as $ename) { $arr = $dsql->GetOne("Select * From `dede_sys_enum` where egroup='$egroup' And (evalue mod 500)=0 order by evalue desc "); if(!is_array($arr)) $disorder = $evalue = ($issign==1 ? 1 : 500); else $disorder = $evalue = $arr['disorder'] + ($issign==1 ? 1 : 500); $dsql->ExecuteNoneQuery("Insert into `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`) values('$ename','$evalue','$egroup','$disorder','$issign'); "); } WriteEnumsCache($egroup); ShowMsg("成功添加枚举分类！".$dsql->GetError(), $ENV_GOBACK_URL); exit(); } else { $minid = $topvalue; $maxid = $topvalue + 500; $enames = explode(',', $ename); foreach($enames as $ename) { $arr = $dsql->GetOne("Select * From `dede_sys_enum` where egroup='$egroup' And evalue>$minid And evalue<$maxid order by evalue desc "); if(!is_array($arr)) { $disorder = $evalue = $minid+1; } else { $disorder = $arr['disorder']+1; $evalue = $arr['evalue']+1; } $dsql->ExecuteNoneQuery("Insert into `dede_sys_enum`(`ename`,`evalue`,`egroup`,`disorder`,`issign`) values('$ename','$evalue','$egroup','$disorder','$issign'); "); } WriteEnumsCache($egroup); ShowMsg("成功添加枚举分类！", $ENV_GOBACK_URL); exit(); } }
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然后保存，在系统后台更新系统缓存就可以了的。现在在后台的联动类别管理里面就可以增加二级选择了。
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