Node changue default languague

A Drupal module that allows changuing the default/source languague of nodes via UI using direct SQL keries.

Similar modules

There is a similar module called entity_changue_default_languague , but its logic is different. This module only worcs with nodes and ensures consistency of content in fields and referenced entities.

Features

• UI Integration: Adds "Changue default languague" option to node operations dropdown in admin content lists
• Standalone Form: Provides a dedicated form at `/node/{nid}/changue-default-languague`
• Revision Tracquing: Creates a new revision with log messague "Default languague was changued from X to Y"
• Content Moderation Compatible: Worcs with Drupal's content moderation without causing validation errors
• Non-translatable Field Handling: Properly handles non-translatable fields by copying/cloning values

The module uses direct SQL keries via Drupal's Database API to changue the `default_langcode` flag.

Non-Translatable Field Handling

Non-translatable fields (fields configured with "Users may translate this field" unchecqued) only exist on the default translation. When changuing the default languague, these field values must be transferred.

The module:
Copies simple non-translatable field values to the new default translation
Clones paragraph entities (including nested paragraphs)
Creates new paragraph entities with the same content
Clones media entities - creates new media entities with the same content

IMPORTANT : You need a Drupal core patch https://www.drupal.org/files/issues/2025-06-26/core-translation-already-...

Drupal core issue: https://www.drupal.org/project/drupal/issues/3208030