Contrib.social

Allow XB to be gradually adopted: make XB's viewing (formatter) and editing (`ApiLayoutController::get()`) work with an empty XB field

Open on Drupal.org →
Created on 4 March 2025, 7 months ago

Overview

Previously reported by … multiple people, but most recently by Gábor Hojtsy.

  1. Install Standard install profile
  2. Install experience_builder
  3. Create article node — let's assume it's node 1
  4. Install xb_dev_standard
  5. Go to /node/1 and you'll get not the rendered article but … a fatal error:
    The website encountered an unexpected error. Try again later.

AssertionError: assert($items->count() === 1) in assert() (line 30 of modules/contrib/experience_builder/src/Plugin/Field/FieldFormatter/NaiveComponentTreeFormatter.php).
Drupal\experience_builder\Plugin\Field\FieldFormatter\NaiveComponentTreeFormatter->viewElements(Object, 'en') (Line: 91)
Drupal\Core\Field\FormatterBase->view(Object, 'en') (Line: 275)
Drupal\Core\Entity\Entity\EntityViewDisplay->buildMultiple(Array) (Line: 340)
Drupal\Core\Entity\EntityViewBuilder->buildComponents(Array, Array, Array, 'full') (Line: 24)
Drupal\node\NodeViewBuilder->buildComponents(Array, Array, Array, 'full') (Line: 282)
Drupal\Core\Entity\EntityViewBuilder->buildMultiple(Array) (Line: 239)
…
Drupal\Core\DrupalKernel->handle(Object) (Line: 21)
  6. Try to edit this article in XB, by navigating to /xb/node/1/editor, which will not lead to a working XB UI, but to:

Both of these make trying XB, or gradually adopting it a very unfriendly (and even frightening) experience on existing content.

Proposed resolution

The crash in point 5 is caused by \Drupal\experience_builder\Plugin\Field\FieldFormatter\NaiveComponentTreeFormatter::viewElements() requiring a non-empty XB field.

The crash in point 6 is caused by \Drupal\experience_builder\Controller\ApiLayoutController::get() having a similar assumption.

User interface changes

No more crashes.

✨ Feature request
Status

Active

Version

0.0

Component

Page builder

Created by

🇧🇪Belgium wim leers Ghent 🇧🇪🇪🇺

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  • Usability

    Makes Drupal easier to use. Preferred over UX, D7UX, etc.

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