Set current date time in catalog item based on other variable

[Rick Mann]

I'm creating a catalog item where I want to populate the current date/time if another variable is set to "Yes". I've been working with the following catalog script, but I'm not having success.

function onChange(control, oldValue, newValue, isLoading) {
   if (!isLoading) {
       //alert('new value is ' + newValue);
       if (newValue == 'Yes') {
           g_form.setValue('run_date', nowDateTime());
       }
       if (newValue == 'No') {
           g_form.setValue('run_date', '');
       }
   }
}

Thanks for any help.

[SteveS]

I think that it should be u_run_date instead of just run_date since it was a user created field.

[Jay_Ford]

Since this is a catalog item as long as your variable name is run_date, you don't need to add the u_.

I think the issue is that you don't have access to gs functions from client scripts, so in order to get nowDateTime() you will have to create a script include like this example (http://wiki.service-now.com/index.php?title=Set_Current_DateTime_In_Field) and call it via an Ajax call in your client script to get the current date time.

[Ivan Martez]

I'd prefer not use the "getXMLWait" method because it locks the browser until the answer is returned. I just tried this in my instance. I created 2 fields, the first field was a Yes/No variable, the second field was a date/time field. Here is the code.

Script Include -

Name: MyDateTimeAjax
Client Callable: true

Script:

var MyDateTimeAjax = Class.create();

  MyDateTimeAjax.prototype = Object.extendsObject(AbstractAjaxProcessor, {

    nowDateTime: function() {
      return gs.nowDateTime();
    }
});

Client Script -
Name: set the date
Type: onChange
Applies to: Catalog Item

Script:

function onChange(control, oldValue, newValue, isLoading) {

if(newValue == "Yes"){

var ga = new GlideAjax('MyDateTimeAjax');
ga.addParam('sysparm_name', 'nowDateTime');
ga.getXML(setDateTimeParse);
}

function setDateTimeParse(response){
var answer = response.responseXML.documentElement.getAttribute("answer");
g_form.setValue('my_date_field', answer);

}
}