Display Choice field values depend on other fields

[anand-bhosle]

Hello VA gurus,

I have a topic where user inputs a category field. I would like to add an option to users to select subcategory field as well but i want to show only those sub category fields which depend on category field. How do i make that happen? Below is the code and flow that i have created. Any suggestions/help will be much appreciated.

var options=[];
var choices = new GlideRecord('sys_choice');
//choices.addQuery('dependent_value','hr');
choices.addQuery('table', 'table');
choices.addQuery('element','u_subcategory');
choices.query();

while(choices.next()){
options.push({value: choices.value,label: choices.value});
gs.info(options);
}

Working code for Urgency is below:

(function execute() {

var choices = newGlideChoiceList();

// Getting all the choices for urgency.

var choiceList = choices.getChoiceList('incident', 'urgency');

var options = [];

for (var i=0; i < choiceList.getSize(); i++) {

options.push({'value': choiceList.getChoice(i).getValue(), 'label': choiceList.getChoice(i).getLabel()});

}

return options;

})()

Thanks

Anand

[Mark Roethof · Accepted solution]

Hi there,

The use of new GlideChoiceList is a nice one! Though actually... I don't know if there's a similar API for dependent values.

I don't have a set up currently for HR to my availability, so I will give an example based on incident.

I guess with the example working code for urgency, you can set up your own category code. Based on incident for example:

(function execute() {

  var choices = new GlideChoiceList();
  var choiceList = choices.getChoiceList('incident', 'category');
 
  var options = [];
  for (var i=0; i < choiceList.getSize(); i++) {
    options.push({'value': choiceList.getChoice(i).getValue(), 'label': choiceList.getChoice(i).getLabel()});
  }
 
  return options;

})()

Looking for the dependent subcategory, again I don't know if there's a similar API, so scripted it in this case:

(function execute() {

  var choices = new GlideRecord('sys_choice');
  choices.addQuery('inactive', false);
  choices.addQuery('dependent_value', vaInputs.category); // Rename this vaInputs to your Category user input
  choices.addQuery('language', 'en');
  choices.orderBy('order');
  choices._query();

  var options = [];
  while(choices._next()) {
    options.push({'value': choices.getValue('value'), 'label': choices.getValue('label')});
  }

  return options;

})()

(= tested, works)

If my answer helped you in any way, please then mark it as helpful.

Kind regards,
Mark
2020 ServiceNow Community MVP
2020 ServiceNow Developer MVP

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[Marcelle Howard]

Hi Anand,

Is this design part of a topic, or part of a setup topic? If it is part of a topic, is this a guided process where the user would select an option, which would then prompt a related sub-option? 

HR is setup differently than ITSM in that it uses a hierarchy structure (COE > Topic Category > Topic Detail > HR Service) to route the case appropriately to the correct resolution team. You also need to consider cross-scoping implications with RCA and make sure to use the HR VA scope if the topic will create a case.

The easier way to configure a category/sub-category experience (if using this in a topic) is to have your category, then use the decision utility to branch to the different sub-category options, which will in turn have their own flows. The end result will look more like a tree structure than have the dependency format. 

You may also want to create separate topics depending on the complexity of the topic design.

Hope this helps.

Thanks,

Marcelle

[anand-bhosle]

Hello Marcelle, yes it is part of a topic and a guided process to let the user select options. I am using reference choice under user input section. Decision utility something which makes complex flow.

HR is one of the category and i wanted to show subcategory values which are depend on HR category. If i don't use the script i can able to show all sub categories but that doesnt help user to choose right sub-category. Does that make sense?

[Mark Roethof · Accepted solution]

Hi there,

The use of new GlideChoiceList is a nice one! Though actually... I don't know if there's a similar API for dependent values.

I don't have a set up currently for HR to my availability, so I will give an example based on incident.

I guess with the example working code for urgency, you can set up your own category code. Based on incident for example:

(function execute() {

  var choices = new GlideChoiceList();
  var choiceList = choices.getChoiceList('incident', 'category');
 
  var options = [];
  for (var i=0; i < choiceList.getSize(); i++) {
    options.push({'value': choiceList.getChoice(i).getValue(), 'label': choiceList.getChoice(i).getLabel()});
  }
 
  return options;

})()

Looking for the dependent subcategory, again I don't know if there's a similar API, so scripted it in this case:

(function execute() {

  var choices = new GlideRecord('sys_choice');
  choices.addQuery('inactive', false);
  choices.addQuery('dependent_value', vaInputs.category); // Rename this vaInputs to your Category user input
  choices.addQuery('language', 'en');
  choices.orderBy('order');
  choices._query();

  var options = [];
  while(choices._next()) {
    options.push({'value': choices.getValue('value'), 'label': choices.getValue('label')});
  }

  return options;

})()

(= tested, works)

If my answer helped you in any way, please then mark it as helpful.

Kind regards,
Mark
2020 ServiceNow Community MVP
2020 ServiceNow Developer MVP

---

LinkedIn
Community article list

[anand-bhosle]

Hello Mark, I have tried the same code earlier but it is not filtering any values nor it is showing anything. When i tried the same code in background script i get null object and if i use array variable i will get [Object, Object]. any other way to handle this situation?

Thanks

Anand