Programmatically Switch Layout Paragraphs in Drupal 11 for Cleaner Site Editing

Staff Reporter

Phil Norton explains how to programmatically update Layout Paragraphs in Drupal 11, offering a scalable approach to managing layout diversity across complex pages.

Using the Layout Paragraphs module alongside the Paragraphs system allows editors to craft flexible page designs. However, overuse of custom layouts can lead to editing confusion and inconsistent UI. Phil encountered this firsthand on a site with a dozen layout options, prompting the need to consolidate older layouts into a simpler, unified set.

His solution involved writing a PHP service that identifies Paragraph entities with a specific layout type and updates both the parent and child layout references using getBehaviorSetting() and setBehaviorSettings(). This method ensures content inside nested layouts is remapped appropriately, preserving structure while streamlining configuration.

The guide dives into the behaviour settings stored in the paragraphs_item_field_data table, explaining how layout metadata and region mapping work. With this technique, developers can execute layout transformations via Drush scripts, avoiding manual updates and enabling cleaner editorial workflows. Phil notes the potential to modularise the process if there’s sufficient community interest.

Read the full tutorial on Hashbang Code

Reference: Drupal 11: Programmatically Change A Layout Paragraphs Layout by Philip Norton, #! code (Hash Bang Code) (9 November 2025)

Drupal 11

Paragraphs Module

Site Building

PHP

Drush

Content Editing

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