eyoucms开发之快速函数（根据当前id和字段，或者同父栏目的上一个栏目或者下一个栏目信息）
这个函数用处不大，但是用到时，比较好用。所以分享给大家，
代码如下:
//根据栏目id或者上一个栏目信息
if(!function_exists('diy_get_pre_type')){
function diy_get_pre_type($id = '', $field = '', $admin_lang = 'cn')
{
if($admin_lang == 'cn'){
$pid = 285;
}elseif($admin_lang == 'en'){
$pid = 286;
}
$arctype_where = [
'is_hidden'=>0,
'admin_id'=>1,
'parent_id'=>$pid,
'lang'=>$admin_lang
];
$arctype_data = M('arctype')->where($arctype_where)->where('id','<',$id)->order('id desc')->find();
$data = $arctype_data[$field];
return $data;
}
}
//根据栏目id获取下一个栏目信息
if(!function_exists('diy_get_next_type')){
function diy_get_next_type($id = '',$field = '', $admin_lang = 'cn')
{
if($admin_lang == 'cn'){
$pid = 285;
}elseif($admin_lang == 'en'){
$pid = 286;
}
$arctype_where = [
'is_hidden'=>0,
'admin_id'=>1,
'parent_id'=>$pid,
'lang'=>$admin_lang
];
$arctype_data = M('arctype')->where($arctype_where)->where('id','>',$id)->order('id asc')->find();
$data = $arctype_data[$field];
return $data;
}
}
