11. Configuring bundles in the user interface

11.1. Enable Field UI for events

• Add the following to the attributes in src/Entity/Event.php:

  field_ui_base_route: 'entity.event_type.edit_form',

• Rebuild caches

  Run drush cache:rebuild

• Visit /admin/structure/event-types and edit an event type.

  Note that there is a Manage fields, Manage form display and Manage display operation for each event type.

11.2. Add dynamic fields to events

The ability to have comments is managed as a field in Drupal, so we can use Field UI to add a Comments field to an event type.

• Add a comment type on /admin/structure/comment/types/add

  Select Event as the target entity type

• Add a Comments field to an event type

11.3. Configure view modes

• Visit the Manage display page

  Note that only the Comments field appears

• Add the following to all field definitions in the baseFieldDefinitions() method of the Event class before the semicolon:

  ->setDisplayConfigurable('view', TRUE)

• Rebuild caches

  Run drush cache:rebuild

• Verify that all fields now appear

• Upload user pictures for the existing users

• Use Rendered entity for the Attendees field on the Manage display page

• Add a Teaser view mode on /admin/structure/display-modes/view/add/event

• Make the Teaser view mode configurable on the event type’s Manage display page

• Rebuild caches

  Run drush cache:rebuild

• Configure the Teaser view mode

• Add an Event teasers view

• Add a Page views display with the path events

  Note that the path is entered without a leading slash in Views.

• Use the Unformatted list style for the display

  Display Events in the Teaser view mode

• Verify that the event teasers are displayed correctly

11.4. Configure the form

• Visit the Manage form display page

  Note that only the Comments field appears

• Add the following to all field definitions in the baseFieldDefinitions() method of the Event class before the semicolon:

  ->setDisplayConfigurable('form', TRUE)

• Rebuild caches

  Run drush cache:rebuild

• Note that all fields now appear

• Configure the form display

• Use the Select list widget for the Date field

• Use the Check boxes/radio buttons widget for the Attendees field