By webchick on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
8.0.x
Introduced in version: 
8.0.0-beta4
Issue links: 
https://www.drupal.org/node/1963340
Description: 

For site builders/documentation authors

In Drupal 7, the UI for adding or re-using an existing field was stuck to the bottom of a page listing field values, creating a confusing, one-off user experience:

Add / re-use field at the bottom of list of existing fields

In Drupal 8, the Field UI has moved to standard patterns used elsewhere, with a simple "Add field" button at the top of the listing table, and then more details asked on the following form:

New button on manage fields screen
New Add field screen where you select a field type and provide a label.

For module developers

If you're a module developer who previously modified the Managed Fields form (form ID: 'field_ui_field_overview_form'), you will need to adjust your code to the new form ID: 'field_ui_field_storage_add_form'. Also, the $form['#entity_type_id'] and $form['#bundle'] elements have been changed to $form_state->get('entity_type_id') and $form_state->get('bundle').

Impacts: 
Site builders, administrators, editors
Module developers