Webform elements are not recognized by business rules modules

Hi,
as is known 'Webform' module enables to create 'Computed Elements'. In that regard, could you provide an example of real use case which might need altering of webform elements from a rule.

That is you are talking about a hypothetical situation. I get it.

I understand what you want (in technical terms), moreover I already have realized this feature for 'Rules' module. I just wanted to hear a real business use case where this feature is needed :)

You say:

In another words, what if you want upon insert a new submission of the webform "contact", to replace the value of Your name (name) webform element by the value of the Username of the profile of the current logged in user...

But for this you even need not to create any rules. Because you can insert '[current-user:account-name]' token as default value of 'Your name' webform element.

** comment removed **

@wombatbuddy

I'm going to give you better example of usecase.

Webform with Entity reference element. You are going to use views filtered options by BR and you don't have access to parent field configuration because there is an error:

PHP message: Error: Call to a member function getTargetEntityTypeId() on null in /business_rules/src/Plugin/EntityReferenceSelection/BusinessRulesViewsSelection.php on line 285

    /** @var \Drupal\field\Entity\FieldConfig $field_config */
      $field_config = $this->util->request->get('field_config'); // here is null 
      $entity_type = $field_config->getTargetEntityTypeId(); 

$field_config is null beacuse of webform element not recognised as a field and can't find 'field_config' for it.

@SebaZ, in #3 I asked to provide an example of use case which might need altering of webform elements from a rule.

But regards to your use case, would you describe it in simple words? Whad do you need to do?
Maybe we can find an alternative solution.

I mean "Make field dependant using views" option not working with webforms. In #9 I have explained what I need.

Drop down list dependant from another list, reloaded by AJAX when I change parent field value.

@SebaZ,
Ok, what data does contain the list 1?
What data contains dependent list 2?
What are the conditions for displaying data in the list 2?

Does it matter what data?

1. Entity Reference to taxonomy terms.
2. Entity Reference to taxonomy terms filtered by 1. value.

@SebaZ,
If I don't understand the task, then I'm not motivated to help with this.

@SebaZ,
As a workaround, you can use 'eForm' module instead of 'Webform' module.
It will enable you to create a webform with a dependent field like in the "Dependent field" tutorial.

Thank you for your suggestion. I would make new content type rather than using eform. Webforms are great, Business Rules are great too. Would like to see it working together in all features. Especially in ""Make field dependant using views"" :)

My posts were not looking for help, just wanted to help fix that issue giving examples and some usecase.

@SebaZ,
Also exists a good module named 'Webform Simple Hierarchical Select'.
It enables to use 'Webform' module and create dependent fields in a convenient way.

@wombatbuddy
Webform_SHS only visualizes hierarchical vocabulary not allowing dependant fields.

When you need to filter terms by many conditions it is not possible to make hierarchical vocabulary and SHS will not help.

@SebaZ,
Would you describe the task in simple words, without technical terms (in a marketing team manner).
What does hypothetical client want?
For instance:
"A user need to select states and cities and submit this info..."
(I want to insure that a ready solution is not exists).

School, courses. And courses are filtered by few conditions like:
- level of study (bachelor/master),
- type of study (full-time/part-time)
- language of study.

Each parameter is another vocabulary with reference to it in every course.
Biology bachelor, part-time, english
Biology bachelor, full-time, swedish
etc.

When I select language, type and level of study I need to show only fitting courses.
Is it enough explanation?

Yes that's enough for now.
I only want to clarify, are course represented by node or by taxonomy term?

The first idea was to make courses as taxonomy but it can be made by nodes too. It changes nothing to lack of dependant select fields.

Ok, I will think on it.

@SebaZ,
I tried to solve your task (about school, courses) for a node creation form, using 'Business Rules' dependent fields.
But it seems to me that this is impossible.
It looks like 'Business Rules' approach works only for two dependent fields and not for more.
Is it so?

@wombatbuddy
It is not the problem because I can make computed field with value needed to dynamic view for entity reference. It works on core nodes system but not on Webforms.

When you analyze our last discussion you will realize that problem is with Webforms and Business Rules which not recognizes Webform fields as normal fields and you can not use BR dependant fields feature on Webforms. Details #9

PS. I wanted to use Webforms to gather admission informations because there will be many admissions during academic year and cloning Webform with little changes would be bether solution than core nodes. With core nodes I will have to make new content type for every admission which will change gathered data.

@SebaZ
Do you mean that you use 'Computed Field' module additionally?

Nope. This module works only after submit form. I just used JS to fill hidden field value: arg1,arg2,arg3,arg4 and then used it with Business Rules dependant feature. Filtered View as Entity Reference takes arguments like I gave in field. That's it :)

This is impossible in Webforms. Business Rules dependant feature is not working, gives error when it tries to load textfield to configure it. Details in #9

@SebaZ
It looks like that for your task it's more easy to create a custom solution for Webform, which will be independent from 'Business Rules'.

sebaz Did you get this working? We have a similar requirement where we need to populate the second dropdown values based on the selected value in the first dropdown. Entity reference view and business rule works fine in a node, but when we try to do the same in the webform its not working and not able to filter the entity select values.

No, I've dropped the idea of using Webforms to this task. Entityform did what I want without special integration.

Oh! EntityForm is not available for Drupal 9, wonder if there is anything else that can be used to achieve this feature.