Contrib.social

eca_diff_entity: Error building form

Open on Drupal.org →
Created on 8 September 2025, 8 days ago

Problem/Motivation

The config form for the plugin eca_diff_entity can't be built because of the following error message.

The configuration form of eca_diff_entity action plugin can not be loaded. Plugin ignored. implode(): If argument #1 ($separator) is of type string, argument #2 ($array) must be of type array, null given

Steps to reproduce

Create an ECA model with the entity: compare action after an entity: update event.
Check, that the action form can not be built.

Proposed resolution

I think there is something in initializing the defaultConfiguration.
The EntityDiffTrait has all thinks set up right I think.

public function commonDefaultConfiguration(): array {
return [
'token_name' => '',
'compare_token_name' => '',
'exclude_fields' => [],
'include_fields' => [],
] + parent::defaultConfiguration();
}

Remaining tasks

User interface changes

API changes

Data model changes

🐛 Bug report
Status

Active

Version

3.0

Component

Code

Created by

🇩🇪Germany sunlix Wesel

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Comments & Activities

  • Issue created by @sunlix
  • Comment 8 days ago →
    🇩🇪Germany sunlix Wesel
  • Comment 7 days ago →
    🇩🇪Germany jurgenhaas Gottmadingen

    Moving this to the bpmn_io project as this is an issue with upcasting config values that we receive from the canvas, which only always provides strings, but config values may be declared as arrays. So far, the upcasting in this scenario tries a JSON decode, but if that fails it needs to try exploding lines into an array.

  • Comment 7 days ago →
    🇩🇪Germany jurgenhaas Gottmadingen

    Please test and review the MR.

  • Merge request !127[#3545469] bug: Upcasting config to array may fail → (Merged) created by jurgenhaas
  • Comment 6 days ago →
    🇩🇪Germany sunlix Wesel

    Hey Jürgen,

    thank you very much for investigating.
    I applied the patch and now, the config form of the action is rendered correctly.

    After setting up the action and hit save, another issue raised. Maybe it is a follow up?

    TypeError: Drupal\eca_ui\Plugin\ModelerApiModelOwner\Eca::prepareFormFieldForValidation(): Argument #1 ($value) must be of type ?string, array given, called in /var/www/html/web/modules/contrib/modeler_api/src/Component.php on line 273 in Drupal\eca_ui\Plugin\ModelerApiModelOwner\Eca->prepareFormFieldForValidation() (line 323 of /var/www/html/web/modules/contrib/eca/modules/ui/src/Plugin/ModelerApiModelOwner/Eca.php).
  • Pipeline finished with Skipped
    about 14 hours ago
    #599052
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