DRUPAL_OPTIONAL

Optional option on forms and settings.

5 uses of DRUPAL_OPTIONAL

CommentItem::defaultFieldSettings in core/modules/comment/src/Plugin/Field/FieldType/CommentItem.php

Defines the field-level settings for this plugin.

LinkField::alterFieldInstanceMigration in core/modules/link/src/Plugin/migrate/field/d7/LinkField.php

Apply any custom processing to the field instance migration.

LinkItem::defaultFieldSettings in core/modules/link/src/Plugin/Field/FieldType/LinkItem.php

Defines the field-level settings for this plugin.

LinkItem::generateSampleValue in core/modules/link/src/Plugin/Field/FieldType/LinkItem.php

Generates placeholder field values.

LinkWidget::formElement in core/modules/link/src/Plugin/Field/FieldWidget/LinkWidget.php

Returns the form for a single field widget.

File

core/modules/system/system.module, line 22

Code

const DRUPAL_OPTIONAL = 1;