adding 6months to date selected between today's date to expiration date

[pritimayee]

Can anyone please help on the below requirement. I have date field variable named assignment date. Another date field variable is expiration date.

Users should be able to select the expiration date between today's date to assignment date + 6months.They should not be able to select past dates or more than 6 months.

[Ankur Bawiskar · Accepted solution]

Hi,

you can use onChange client script + GlideAjax to validate that

Something like this

Client Script:

Note: Ensure you give valid variable names for start and end dates

function onChange(control, oldValue, newValue, isLoading) {
	if (isLoading || newValue == '') {
		return;
	}
	// check if in past
	var today = new Date().getTime();
	var selectedDate = new Date(newValue).getTime();
	if(selectedDate < today){
		alert('Past date not allowed');
		g_form.clearValue('end_date');
	}
	// check for 6 months
	else if(oldValue != newValue){
		var ga = new GlideAjax('DateTimeAjax');
		ga.addParam('sysparm_name', "compareDates");
		ga.addParam('sysparm_start', g_form.getValue('start_date')); // start variable
		ga.addParam('sysparm_end', g_form.getValue('end_date')); // end variable
		ga.getXMLAnswer(function(answer){
			if(answer != ''){
				alert('End date should be within 6 months from start date');
				g_form.clearValue('end_date');	
			}
		});
		//Type appropriate comment here, and begin script below
	}
}

Script Include: It should be client callable

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

	compareDates: function(){

		var start = new GlideDateTime(this.getParameter('sysparm_start'));
		var end = new GlideDateTime(this.getParameter('sysparm_end'));
		start.addMonthsUTC(6);

		if(end.getNumericValue() > start.getNumericValue()){
			return 'End Date should be withing 6 months from start';
		}
		return '';
	},

	type: 'DateTimeAjax'
});

Regards
Ankur

[Ankur Bawiskar]

@pritimayee1@gmail 

Glad to know that my script worked.

Please mark response helpful as well.

Regards
Ankur