[织梦教程] 织梦5.7bug修复:后台联动不能添加二级栏目的解决方法

魔扣科技 · 发表于 2020-6-30 23:38:43

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我在使用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。

于是分析了代码，和大家分享下解决的办法：
首先我们找到我们的模板源码下面的 dede/stepselect_main.php  这个文件，

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();
}
}

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();
  }
}

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。