10 calls to OptGroup::flattenOptions() in Drupal 8

EntityReferenceItem::getSettableValues in core/lib/Drupal/Core/Field/Plugin/Field/FieldType/EntityReferenceItem.php

Returns an array of settable values.

FormValidator::performRequiredValidation in core/lib/Drupal/Core/Form/FormValidator.php

Performs validation of elements that are not subject to limited validation.

InOperator::adminSummary in core/modules/views/src/Plugin/views/filter/InOperator.php

Display the filter on the administrative summary

InOperator::validate in core/modules/views/src/Plugin/views/filter/InOperator.php

Validate that the plugin is correct and can be saved.

ListItemBase::getPossibleValues in core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php

Returns an array of possible values.

ListItemBase::getSettableValues in core/modules/options/src/Plugin/Field/FieldType/ListItemBase.php

Returns an array of settable values.

OptGroupTest::testFlattenOptions in core/tests/Drupal/Tests/Core/Form/OptGroupTest.php

Tests the flattenOptions() method.

OptionsDefaultFormatter::viewElements in core/modules/options/src/Plugin/Field/FieldFormatter/OptionsDefaultFormatter.php

Builds a renderable array for a field value.

OptionsWidgetBase::getOptions in core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsWidgetBase.php

Returns the array of options for the widget.

OptionsWidgetBase::getSelectedOptions in core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/OptionsWidgetBase.php

Determines selected options from the incoming field values.