Propagate values between issues Follow

Thanks for your answer, I try it and it works for enum fields but when I change to other type of field it doesnt work, I try it with a date field and I have this issue code: Issue: id = 2-6165

This is the code:

var entities = require('@jetbrains/youtrack-scripting-api/entities');
exports.rule = entities.Issue.onChange({
   title: 'Propagate Values',
   guard: function (ctx) {
      return ctx.issue.links['parent for'].added.isNotEmpty() &&
         ctx.issue.fields.Fecha;
  },
action: function (ctx) {
   var issue = ctx.issue;
   var safeSetFecha = function (subtask) {
      if (subtask.project && !subtask.project.isArchived) {
         if (subtask.project.key === issue.project.key ||
            subtask.project.findFieldByName(ctx.Fecha.name)) {
            if (!subtask.fields[ctx.Fecha.name]) {
               if (!issue.fields.Fecha ||
                  subtask.project.findFieldByName(ctx.Fecha.name).findValueByName(issue.fields.Fecha.name)) {
                  subtask.fields[ctx.Fecha.name] = issue.fields.Fecha;
               }
            }
         }
      }
   };

   issue.links['parent for'].added.forEach(safeSetFecha);
},
requirements: {
   Fecha: {
      type: entities.Field.dateType,
      name: 'Fecha planificacion'
      }
   },
   SubtaskOf: {
      type: entities.IssueLinkPrototype,
      name: 'Subtask',
      outward: 'parent for',
      inward: 'subtask of'
   }
});

Would you please provide me with the error shown in the workflow editor console? 

Yes, Oleg Larshin.

Thanks for your time.

Processing issue P000_PMPClone-10:
TypeError: Cannot find function findValueByName in object {"becomesRemoved": "false",
"isNew": "false",
"$$type": "SimpleProjectCustomField",
"toString": function() {},
"toShortString": function() {},
"required": function() {},
"becomes": function() {},
"isChanged": function() {},
"oldValue": function() {},
"canBeReadBy": function() {},
"canBeWrittenBy": function() {},
"constructor": function() {},
"becomesInvisibleInIssue": function() {},
"becomesVisibleInIssue": function() {},
"getBackgroundColor": function() {},
"getForegroundColor": function() {},
"localizedName": "null",
"name": "Fecha planificacion",
"getValuePresentation": function() {},
"isVisibleInIssue": function() {},
"nullValueText": "No hay fecha planificacion"}. (pruebas/campofecha#15)

            org.mozilla.javascript.ScriptRuntime.constructError(ScriptRuntime.java:4198)

            org.mozilla.javascript.gen.pruebas_campofecha_4346._c_anonymous_3(pruebas/campofecha:15)

            org.mozilla.javascript.gen.pruebas_campofecha_4346._c_anonymous_2(pruebas/campofecha:24)

Thanks! Now I see the issue. You are right, only enumerable field types contain a set of values. For other types (like date, int, string, etc.) there is no such a set. As a possible solution, I suggest you check the field type before calling the findValueByName method. I hope it will be helpful. 

Okey Thanks, It works without findValueByName method.

Thanks a lot.

Hello Oleg Larshin,

I have an other problem with multi enum values, is the same code but it doesnt work, could you help me?

Now I dont have any error but it doesnt work.

Tanks.

var entities = require('@jetbrains/youtrack-scripting-api/entities');

exports.rule = entities.Issue.onChange({
    title:'Heredar campos',
    guard: function (ctx) {
        return ctx.issue.links['parent for'].added.isNotEmpty() &&
          ctx.issue.fields.Entorno;
    },
    action: function (ctx) {
        var issue = ctx.issue;
      	var safeSetEntorno = function (subtask) {
      		if (subtask.project && !subtask.project.isArchived) {
         		if (subtask.project.key === issue.project.key ||
            		subtask.project.findFieldByName(ctx.Entorno.name)) {
            		if (!subtask.fields[ctx.Entorno.name]) {
               			if (!issue.fields.Entorno ||
                  			subtask.project.findFieldByName(ctx.Entorno.name)) {
                  			subtask.fields[ctx.Entorno.name] = issue.fields.Entorno;
               }
            }
         }
      }
   };
      	issue.links['parent for'].added.forEach(safeSetEntorno);
    },
    requirements: {
      	Entorno: {
            type: entities.EnumField.fieldType,
          	multi: true
        },
        SubtaskOf: {
            type: entities.IssueLinkPrototype,
            name: 'Subtask',
            outward: 'parent for',
            inward: 'subtask of'
        }
    }
});

Hello, 

When a custom field is multiple, it contains a set of values. So, to copy values to another field, it is necessary to iterate through values using the forEach method and add them with the add method. Please refer to the Working with Set Objects for more information. 

Hello,

Can you show me an example of how to use it? please.

Thanks.

It should be something like:

issue.fields.Entorno.forEach(function(value){
   subtask.fields[ctx.Entorno.name].add(value);
});

Thank you very much, it already works, thanks for your time.

You are always welcome! Should you have any further questions, feel free to contact us at any time. Have a great day! 

For anyone who might stumble upon this thread and try using the latest WF code posted by Alvmonroy here, you might need to change this line:

if (!subtask.fields[ctx.Entorno.name]) {

To this:

if (!subtask.fields[issue.Entorno.name]) {

That's because in here, you need to check whether the value in the custom field (Entorno) of the subtask corresponds to the current (parent) issue. Hope that helps!