How to set description field of main object with description field of related objects

[Aleksis]

How to set description field of main object with description field of related objects when select related object ?
(Please find screenshot in attach)

[Maximus]

Hi,
If you have a relation 'A_test1 to A_test2' of Many-to-One type, you can try to utilize the next formula for the A_test1 entity:

ifThen(
    entity\isAttributeChanged('aTest2Id'),
    description = aTest2.description
)

[Aleksis]

Description field changed after page saved. Can it be changed immediately when ATest2 changed ? (screenshot in attach)

[Maximus]

You can investigate a source code of the js files with similar dynamic changes and create your own.
This can be helpful https://github.com/espocrm/documenta...opment/view.md.

[Aleksis]

I'm very much sorry - I didn't find any page with the same dynamic changes. Can you please name one ?

For now I customize link field using https://github.com/espocrm/documenta...dard-fields.md

It seems I have to handle event, but I can't find what event.

[Aleksis]

The solution.
1. customize link field using https://github.com/espocrm/documenta...dard-fields.md
2. Extend select:

return Dep.extend({

select: function (model) {
debugger;
this.$elementName.val(model.get('name'));
this.$elementId.val(model.get('id'));
[I]try
{
    if (this.attributeList.length > 1 )
    {
       cc = this.attributeList[1];
       if (cc == "aTest2Name")
       {
            rr1 = this._parentView;
            rr1.model.set('description',model.get('description '));
       }
    }
}
catch (e) {

}

debugger;[/I]
if (this.mode === 'search') {
this.searchData.idValue = model.get('id');
this.searchData.nameValue = model.get('name');
}
this.trigger('change');
},