Detailed explanation of the field processing function of the Imperial CMS function decryption

1. Foreword:

Empire CMS provides powerful custom field processing functions, which greatly facilitates users’ secondary development of Imperial CMS!

When adding/modifying fields, Empire CMS can set "Add information processing function in the background", "Modify information processing function in the background", "Add information processing function in the front desk", and "Modify information processing function in the front desk" respectively. Set functions for processing field content, which are often used for models that have special requirements for the storage format of field content. Today we will briefly explain the processing function production format. The specific setting position of the field processing function is shown in the figure below:

2. Basic setting steps:

1. Write the processing function;
2. Copy the function to the content of the e/class/userfun.php file;
3. Modify the field setting processing function name.

3. Field processing function format:

The code is as follows:

function user_FieldFun($mid,$f,$isadd,$isq,$value,$cs){
return $value;
}

Parameter description:

user_FieldFun: function name
$mid: system model ID
$f: field name
$isadd: When the value is 0, it is to add information; when the value is 1, it is to modify the information
$isq: When the value is 0, it is background processing; when the value is 1, it is foreground processing
$value: Original content of the field
$cs: Field additional parameters, parameter content set at the field processing function

4. Field processing function example:

Example 1: Automatically add the words "[EmpireCMS]" in front of the title
Backend field function settings: user_AddTitle

The code is as follows:

function user_AddTitle($mid,$f,$isadd,$isq,$value,$cs){
$value='[EmpireCMS]'.$value;
return $value;
}

Example 2: Title content is set by a combination of writer and befrom fields
Background field function is set: user_TogTitle
The title field displays the HTML code:
(Note: Because the title is a required item, an initial value must be given. It will prompt that the content is empty)

The code is as follows:

function user_TogTitle($mid,$f,$isadd,$isq,$value,$cs){
$value=$_POST['writer'].$_POST['befrom'];
return $value;
}

Example 3: Upload images and automatically generate thumbnails
Background field function settings: user_TranImgAuto##170,120
(Explanation: The background parameter 170 represents the thumbnail width, 120 is the thumbnail height)
Upload image field displays HTML code:
(Note: The variable name uses "field name" imgrs, which corresponds to the "$filetf" variable in the function)

Code as follows:

function user_TranImgAuto($mid,$f,$isadd,$isq,$value,$cs){
global $empire,$dbtbpre,$public_r,$emod_r,$class_r,$tranpicturetype,$musername;
$filetf=$f.'imgrs';//变量名
if(!$_FILES[$filetf]['name'])
{
return '';
}
$classid=(int)$_POST['classid'];
$id=(int)$_POST['id'];
$filepass=(int)$_POST['filepass'];
$filetype=GetFiletype($_FILES[$filetf]['name']);
$pr=$empire->fetch1("select qaddtran,qaddtransize,qaddtranimgtype from {$dbtbpre}enewspublic limit 1");
if(!$pr['qaddtran'])
{
printerror("CloseQTranPic","",1);
}
if(!strstr($pr['qaddtranimgtype'],"|".$filetype."|"))
{
printerror("NotQTranFiletype","",1);
}
if($_FILES[$filetf]['size']>$pr['qaddtransize']*1024)
{
printerror("TooBigQTranFile","",1);
}
if(!strstr($tranpicturetype,','.$filetype.','))
{
printerror("NotQTranFiletype","",1);
}
$tfr=DoTranFile($_FILES[$filetf]['tmp_name'],$_FILES[$filetf]['name'],$_FILES[$filetf]['type'],$_FILES[$filetf]['size'],$classid);
if($tfr['tran'])
{
$csr=explode(',',$cs);
$maxwidth=$csr[0];
$maxheight=$csr[1];
$yname=$tfr['yname'];
$name=$tfr['name'];
include_once(ECMS_PATH.'e/class/gd.php');
//生成缩图
$filer=ResizeImage($yname,$name,$maxwidth,$maxheight,$public_r['spickill']);
DelFiletext($yname);
if($filer['file'])
{
//写入数据库
$type=1;
$filetime=date("Y-m-d H:i:s");
$filesize=@filesize($filer['file']);
$filename=GetFilename(str_replace(ECMS_PATH,'',$filer['file']));
$adduser='[Member]'.$musername;
$infoid=$isadd==1?0:$id;
$empire->query("insert into {$dbtbpre}enewsfile(filename,filesize,adduser,path,filetime,classid,no,type,id,cjid,fpath) values('$filename','$filesize','$adduser','$tfr[filepath]','$filetime','$classid','[".$f."]".addslashes(RepPostStr($_POST[title]))."','$type','$infoid','$filepass','$public_r[fpath]');");
if($isadd==0)
{
$tbname=$emod_r[$mid]['tbname'];
if(strstr($emod_r[$mid]['tbdataf'],','.$f.','))
{
$ir=$empire->fetch1("select stb from {$dbtbpre}ecms_".$tbname." where id='$id'");
$ifr=$empire->fetch1("select ".$f." from {$dbtbpre}ecms_".$tbname."_data_".$ir[stb]." where id='$id'");
$ifval=$ifr[$f];
}
else
{
$ir=$empire->fetch1("select ".$f." from {$dbtbpre}ecms_".$tbname." where id='$id'");
$ifval=$ir[$f];
}
if($ifval)
{
DelYQTranFile($classid,$id,$ifval,$f);
}
}
$value=str_replace($tfr['filename'],$filename,$tfr['url']);
}
}
else
{
$value='';
}
return $value;
}

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