How to return value to getXML function in client script

[Tomi Corigliano]

Hello,

I'm calling a script include in my catalog client script through GlideAjax, which works fine. Nevertheless, I can't find a way to return the value to the main function.

How is this possible? Preferably with an example.

Thanks in advance for your reply.

[Tomi Corigliano]

This is the script include:

var DWPCatalogClientUtils = Class.create();
DWPCatalogClientUtils.prototype = Object.extendsObject(AbstractAjaxProcessor, {

    checkIfDateIsGreaterThanNowInDays: function() {
		
        var startDT = this.getParameter('sysparm_sdt');
		var addDays = this.getParameter('sysparm_ad');
        var amountSec = gs.dateDiff(gs.nowDateTime(), startDT, true);
		var amountDays = parseInt(amountSec) / (60 * 60 * 24);
		if (amountDays > parseInt(addDays)){
			return true;
		} else {
			return false;
		}
    },
	
    type: 'DWPCatalogClientUtils'
	
});

This is the catalog client script:

function onSubmit() {
   
	var ecDate = g_form.getValue('ec_last_day');
	
	var ga = new GlideAjax('DCITSMCatalogClientUtils');
	ga.addParam('sysparm_name', 'getNowDateTimeDiff');
	ga.addParam('sysparm_sdt', ecDate);
	ga.getXML(GetDate);
	
	function GetDate(response){
		var diffSec = response.responseXML.documentElement.getAttribute("answer");
		var diffDays = parseInt(diffSec) / (60 * 60 * 24);
		
		if (diffDays > 0){
			g_form.addErrorMessage('The inserted day can not be in the future!','error');
			return false;
		}
		if (diffDays < -35) {
			g_form.addErrorMessage('The inserted day can not be more than maximum 35 days ago!','error');
			return false;
		}
	}
	
}

[Ankur Bawiskar]

@Tomi Corigliano 

you just want to check these things

1) date cannot be in future

AND

2) date cannot be more than 35 days older

You can validate this using UI policy and not script required

Did you try to use that approach?

[Tomi Corigliano]

Hi Ankur,

It's true that you can show the FieldMessage through a UI policy, but this will not prevent it from submitting.

[Ankur Bawiskar · Accepted solution]

@Tomi Corigliano 

you can show field message of type error so it won't allow submitting the form.

So unless and until the user selects correct date they cannot submit it

When the validation fails show field message of type error; if validation is fine clear the message

[Tomi Corigliano]

I have configured it as follows:

It shows the message but it doesn't prevent the submit