function TestFieldEmptyFormatter::viewElements

Overrides FormatterInterface::viewElements

File

core/modules/field/tests/modules/field_test/src/Plugin/Field/FieldFormatter/TestFieldEmptyFormatter.php, line 35

Class

TestFieldEmptyFormatter

Plugin implementation of the 'field_empty_test' formatter.

Namespace

Code

public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = [];
    if ($items->isEmpty()) {
        // For fields with no value, just add the configured "empty" value.
        $elements[0] = [
            '#markup' => $this->getSetting('test_empty_string'),
        ];
    }
    else {
        foreach ($items as $delta => $item) {
            // This formatter only needs to output raw for testing.
            $elements[$delta] = [
                '#markup' => $item->value,
            ];
        }
    }
    return $elements;
}