Problem/Motivation

When you perform an Ajax operation in a views handler plugin, views stores the value of the form element that triggered the Ajax submission in a temporary_options property on the ViewExecutableand, when loading the handler again when (re-)building the form afterwards, the temporary options are used to instantiate that handler, so that you can rely on $this->options being properly set the correct value.

However, even though HandlerBase::submitTemporaryForm() attempts to persist the temporary options in the user tempstore, they are never actually stored because when serializing the the view entity, the ViewExecutable is thrown away so that it will be re-instantiated on-demand after the view has been fetched from cache. With it, the temporary options are thrown away, as well. This seems to be an unintended side-effect of #2252763: Views exposed filter form causes enormous form state cache entries.

Some additional confusion is caused by the fact $temporary_options is in fact declared on ViewsUI, but it is actually used on ViewExecutable including by code in Views module, even though it is only necessary for Views UI. \Drupal\views_ui\Form\Ajax\ConfigHandler::submitForm(), however, attempts to unset the temporary options on the ViewUI object, even though those will never be set.

Proposed resolution

?

Steps to reproduce

Proposed resolution

Remaining tasks

Needs Issue Summary update to clarify the problem

Investigate the problem

User interface changes

API changes

Data model changes

Release notes snippet

Comments

tstoeckler created an issue. See original summary.

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quietone’s picture

quietone CreditAttribution: quietone at PreviousNext commented
Issue summary: View changes
Issue tags: +Bug Smash Initiative, +Needs issue summary update

This was a bugsmash issue of the day yesterday and discussed by longwave and lendude.

The consensus what that the Issue Summary doesn't describe the actual fault. So the question is, is this a bug or a task? If the variable is cleared without being used is it actually needed, or is it used in a vary confusing manner? It was decided that diving into the code was needed to take this further.

I am tagging this for an IS update.

Version: 10.1.x-dev » 11.x-dev

Drupal core is moving towards using a “main” branch. As an interim step, a new 11.x branch has been opened, as Drupal.org infrastructure cannot currently fully support a branch named main. New developments and disruptive changes should now be targeted for the 11.x branch, which currently accepts only minor-version allowed changes. For more information, see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.