10 calls to OptGroup::flattenOptions()

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.

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