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LogicException: The database connection is not serializable. This probably means you are serializing an object that has an indirect reference to the database connection.

Open on Drupal.org →
Created on 19 March 2025, 17 days ago

Problem/Motivation

LogicException: The database connection is not serializable. This probably means you are serializing an object that has an indirect reference to the database connection. Adjust your code so that is not necessary. Alternatively, look at DependencySerializationTrait as a temporary solution. in Drupal\Core\Database\Connection->__sleep() (line 1922 of /app/web/core/lib/Drupal/Core/Database/Connection.php).

While this error could be caused by _many_ things, props to Daniel Steindl on tips about how to find this when it has to do with form caching:
https://drupal.stackexchange.com/a/297973/3813

Steps to reproduce

In CKEditor when I use the Media Library to upload a new image (using DropZoneJS, but I don't think that matters) the first time I click save, nothing happens (there's a fatal error on the back-end). If I click the button again, then it works.

Proposed resolution

The database connection must be here indirectly through one of this service's injected dependencies. But it's easier just to add support for serialization here.

Remaining tasks

MR forthcoming...

User interface changes

none

API changes

none

Data model changes

none

🐛 Bug report
Status

Active

Version

4.0

Component

Code

Created by

🇲🇽Mexico dalin 🇨🇦, 🇲🇽, 🌍

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