15.01.2026 | Lothar Ferreira Neumann

How to migrate latitude & longitude geodata into a unified geocode field

geofield_migration.yml

field_geofield:
  plugin: geofield_latlon
  source:
    - field_latitude
    - field_longitude

Issue:

Migrating geographic coordinate data from the geofield module into a unified geofield requires correct source field mapping.

Solution:

The code uses the geofield_latlon plugin to combine latitude and longitude fields in the specified order for proper geofield migration.

See the Drupal documentation for more info about the topic.

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13.11.2025 | Lothar Ferreira Neumann

How to place HTML elements into webforms via the Source tab

You can add headlines to a webform using the code below. To get to the source section, navigate to the form you want to alter, click on build and then on the source tab like in the screenshot.

Screenshot of the menu to add code to webform

This is just a short example on how to add a headline.

webform_headline.yml

personal_data:
  '#type': html_tag
  '#tag': h3
  '#value': 'Personal data'

It will look something like this:

yml

html

manipulating forms

backend

21.05.2026 | Lothar Ferreira Neumann

Aggregate heterogeneous media fields for structured Drupal migration

migration_field_merge.yml

  field_media:
    - plugin: merge
      source:
        - field_image
        - field_images
    - plugin: sub_process
      process:
        target_id:
          - plugin: migration_lookup
            source: fid
            migration:
              - my_migration_media_image

yml

Migration

media