DedeCms分类信息联动筛选,省级与地市分开联动，注意：只适用于5.6版，其它版本没有测试，只应用于分类信息模型。其它联动可参照修改。
可能标题说的不是很清楚，下面以图为示例：
如上图所示，默认是显示北京的区县，当点击上海市时，地市处显示上海的县区。这下大家伙明白了吧!
现在开始代码修改操作，只需要修改一个文件。
打开/include/taglib/infolink.lib.php，找到：
Copy to Clipboard引用的内容：[www.dede58.com]
//地区链接
if(empty($nativeplace))
{
foreach($em_nativeplaces as $eid=>$em)
{
if($eid % 500 != 0) continue;
$fields['nativeplace'] .= " {$em}rn";
}
}
else
{
$sontype = ( ($nativeplace % 500 != 0) ? $nativeplace : 0 );
$toptype = ( ($nativeplace % 500 == 0) ? $nativeplace : ( $nativeplace-($nativeplace%500) ) );
$fields['nativeplace'] = "{$em_nativeplaces[$toptype]} >> ";
foreach($em_nativeplaces as $eid=>$em)
{
if($eid < $toptype+1 || $eid > $toptype+499) continue;
if($eid == $nativeplace) {
$fields['nativeplace'] .= " {$em}rn";
}
else {
$fields['nativeplace'] .= " {$em}rn";
}
}
}
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把上面注释掉，然后在下面添加如下代码：
Copy to ClipboardLiehuo.Net Codes引用的内容：[www.dede58.com]
foreach($em_nativeplaces as $eid=>$em)
{
if($eid % 500 != 0) continue;
$fields['nativeplace'] .= " {$em}rn";
}
//地区链接
if(empty($nativeplace))
{
foreach($em_nativeplaces as $eid=>$em)
{
if($eid > 999 ) continue;
$fields['diqu'] .= " {$em}rn";
}
}
else
{
$sontype = ( ($nativeplace % 500 != 0) ? $nativeplace : 0 );
$toptype = ( ($nativeplace % 500 == 0) ? $nativeplace : ( $nativeplace-($nativeplace%500) ) );
foreach($em_nativeplaces as $eid=>$em)
{
if($eid < $toptype+1 || $eid > $toptype+499) continue;
if($eid == $nativeplace) {
$fields['diqu'] .= " {$em}rn";
}
else {
$fields['diqu'] .= " {$em}rn";
}
}
}
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保存就可以了。谢谢阅读烈火网提供的DedeCMS教程。
