Script Includes are used to store JavaScript functions and classes that will execute on the server. Script Includes generally specify either an object class or a function.

Role required: admin.

Creating a script include

A script include has a name, a description, and a script itself. Also, it is possible to specify options active or client-callable.

To create a new script include, please complete the following steps:

  • Navigate to System Definition → Script Includes.
  • Click New and fill in the fields.
  • Click Save or Save and Exit to apply changes.


FieldMandatoryDescription
NameYScript include name. Should match with the class name declared in the script field. Also, script include name should be unique and can not contain spaces.
DescriptionNShort action description.
Active
Select this checkbox to activate this script. When selected, the script will execute when called; otherwise, it will not execute.
Client Callable
Select this checkbox to make this script available to call on the client-side scripts.
Disable ACL Check
Select this checkbox to let this script include do go through an ACL check when executed within Client Scripts.
ScriptY

Define the server-side script to run when called from other scripts.

When invoking script includes in other server-side scripts, please use the ss.importIncludeScript method of the SimpleSystem class like shown on the example below:

ss.importIncludeScript('EmailHelper');
const helper = new EmailHelper();

Otherwise, the script would be unavailable.


Practical case

You can call a script include in case you need to use server-side methods on the client-side. To perform this, the Client Callable attribute.

Script includes on client-side

For more clarity, let us consider a simple example of calling a script include from a client-side.

A practical case is a calculation of the time period between two specified values using a specific schedule.

For this, let us create script include with parameters like shown below:

NameDurationCalculator
Activetrue
ClientCallabletrue
Script

Enter a script from the code example below

ss.importIncludeScript('AbstractAjaxProcessor');
var DurationCalculator = Class.create();
DurationCalculator.prototype = Object.extendsObject(AbstractAjaxProcessor, {
  getDuration() {
    const start = new SimpleDateTime(this.getParameter('sysparm_start'));
    const end = new SimpleDateTime(this.getParameter('sysparm_end'));
    const scheduleID = this.getParameter('sysparm_schedule');
    const schedule = new SimpleSchedule(scheduleID);
    return schedule.duration(start, end).getDurationSeconds() * 1000; // value that would be passed to client-side
  }
});


When you call values passing from the client-side, use this.getParameter like shown in a code example above to get the sysparm_ parameter value.



In another example listed below, we use SimpleAjax on a client-side, and that's what we do:

  1. Create a SimpleAjax instance.
  2. Transfer the called method name using the reserved parameter sysparm_name.
  3. Transfer values from a form using the sysparm_start, sysparm_end, sysparm_schedule parameters.
  4. Call an include script using the getXML(callback) method.
    1. Process its response in the callback-function listed below.
  5. The answer variable will contain value return by the getDuration() method.


if (s_form.getValue('start') &&
  s_form.getValue('end') &&
  s_form.getValue('schedule_id')) {
  const calculate = new SimpleAjax('DurationCalculator'); // call script include
  calculate.addParam('sysparm_name', 'getDuration'); // call method
  calculate.addParam('sysparm_start', s_form.getValue('start')); // pass param
  calculate.addParam('sysparm_end', s_form.getValue('end')); // pass param
  calculate.addParam('sysparm_schedule', s_form.getValue('schedule_id')); // pass param
  calculate.getXML(callback);
  function callback(response) {
    const answer = response.responseXML.documentElement.getAttribute('answer'); // value received from server-side
    s_form.setValue('duration', answer);
  }
}