drupal-fields

Drupal Fields

Creating Fields (Drush — CLI First)

Always use drush field:create instead of manually creating field config files.

# Interactive (recommended first time)
drush field:create

# Non-interactive
drush field:create node article \
  --field-name=field_subtitle \
  --field-label="Subtitle" \
  --field-type=string \
  --field-widget=string_textfield \
  --is-required=0 \
  --cardinality=1

Reference field

drush field:create node article
--field-name=field_tags
--field-label="Tags"
--field-type=entity_reference
--field-widget=entity_reference_autocomplete
--cardinality=-1
--target-type=taxonomy_term

Image field

drush field:create node article
--field-name=field_image
--field-label="Image"
--field-type=image
--field-widget=image_image
--is-required=0
--cardinality=1

## Managing Fields

```bash
# List all fields on a content type
drush field:info node article

# Delete a field
drush field:delete node.article.field_subtitle

# Discover available types/widgets/formatters
drush field:types
drush field:widgets
drush field:formatters

Export After Creating Fields

# Always export config after CLI changes
drush config:export -y

Custom Field Type (Plugin)

drush generate plugin:field:type
drush generate plugin:field:formatter
drush generate plugin:field:widget

Accessing Field Values in Code

// Single value
$value = $entity->get('field_name')->value;

// Entity reference
$referenced = $entity->get('field_ref')->entity;

// Multi-value
foreach ($entity->get('field_multi') as $item) {
  $value = $item->value;
}