Show Error Message from Server Response - php

Question

I have some problems with jqGrid.
I've added a method that validates users input. If the department exist then it will show a warning message, "Department is Exist!"
Here's my jqGrid code:
afterSubmit: function(response, postdata){
var res = $.parseJSON(response.responseText);
if (res === "1") {
return [false,"Department Already Exist"];
} else {
return [true,"Sucess"];
}
}
And my php add method:
if($oper == 'add') {
$deptid = $_POST['idms_department'];
$deptnm = $_POST['department'];
if(checkUser($deptnm) == "FALSE"){
return "1";
} else {
$ins = "INSERT INTO ms_department(department) VALUES('$deptnm')";
if(mysql_query($ins)){
"Success INSERT msDept";
} else {
die("Failed : " .mysql_error());
}
}
mysql_close();
} else .... (another operation)
The message itself is not showing. How do you use the afterSubmit method properly?
thanks
UPDATE
i've change the method to
crudMessage = function(response,postdata){
var res = response.responseText; // response text is returned from server.
if (res === "1") {
return [false,"Department Already Exist"];
} else {
return [true,"Sucess"];
}
}
then removing the afterSubmit from the jqgrid body and add this line into the jqgrid navigation:
jQuery("#departments").jqGrid('navGrid','#pager-departments',{edit:true,add:true,del:true}, {closeAfterEdit: true},{beforeShowForm: function(form) { $('#idms_department', form).hide(); },closeAfterAdd:true},{afterSubmit: crudMessage},{closeAfterSearch:true},{});
here's newest php syntax:
include 'configuration.php';
function checkDepartment($department){
$query = "SELECT department FROM ms_department WHERE department ='$department' LIMIT 1";
$result= mysql_query($query);
return mysql_num_rows($result);
}
if($oper == 'add') {
$deptid = $_POST['idms_department'];
$deptnm = $_POST['department'];
if(checkDepartment($deptnm) == 1){
echo '1';
} else {
$ins = "INSERT INTO ms_department(department) VALUES('$deptnm')";
if(mysql_query($ins)){
"Success INSERT msDept";
} else {
die("Failed : " . mysql_error());
}
}
mysql_close();
} else
if($oper == 'edit'){ ....

Answer 1

In your code, why are you expecting res.insertStatus? From the snippet of PHP code that you provided, it seems you would want to write:
var res = $.parseJSON(response.responseText);
if (res === "User Already Exist!") {
Or maybe I am missing something? Have you tried debugging your code?
That should explain why the alert is not appearing.
Also, for what its worth, according to the jqGrid documentation for form editing:
afterSubmit
fires after response has been received from server. Typically used to display status from server (e.g., the data is successfully saved or the save cancelled for server-side editing reasons). Receives as parameters the data returned from the request and an array of the posted values of type id=value1,value2.
When used this event should return array with the following items [success, message, new_id]where
success is a boolean value if true the process continues, if false a error message appear and all other processing is stopped. (message is ignored if success is true).
new_id can be used to set the new row id in the grid when we are in add mode.
afterSubmit : function(response, postdata)
{
…
return [success,message,new_id]
}
Based on these docs, your final code should remove the alert and just use jqGrid directly:
if (res === "User Already Exist!") {
return [false, "TODO: put your error message here"];
}