Generate unique wrapper id for complex widget

needs reroll

git apply 3257479-6.patch 
error: patch failed: inline_entity_form.module:117
error: inline_entity_form.module: patch does not apply
error: patch failed: src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php:819
error: src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php: patch does not apply

I will reroll the changes and update the patch. I will also raise a MR.

Rerolled the patch for 2.0.x. Raised an MR for the same. Please review

git apply 3257479-12.patch 
3257479-12.patch:104: trailing whitespace.
  
error: patch failed: src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php:278
error: src/Plugin/Field/FieldWidget/InlineEntityFormComplex.php: patch does not apply

Automatically closed - issue fixed for 2 weeks with no activity.

I'm having a problem with this change.

The ID (in getWrapperId method) is recalculated on every interaction with the form (ex. Ajax), in my case when the inline-entity-form throws a validation error of some field. Once corrected the value and re-submitted the form is not closed, I think because the unique id is recalculated in subsequent calls (no button between "create" or "cancel" works).

For a quick test you can create an "entity-reference" field that uses the "inlineEntityForm Complex" widget. The referenced entity must have some validation, such as a required field.
When creating the related entity try to throw error, correct and save the inline-entity-form.

Rolling back the change (or static id assignment like in the previous version) solves the problem.

Hi @luca_cracco I have fixed this issue https://www.drupal.org/project/inline_entity_form/issues/3383346 🐛 Can't save the content without reloading if you miss the required fields once Postponed: needs info in this ticket please review