function NestedConfigTargetForm::buildForm

Overrides TreeConfigTargetForm::buildForm

File

core/modules/system/tests/modules/form_test/src/Form/NestedConfigTargetForm.php, line 34

Class

NestedConfigTargetForm

Test form for testing config targets that are not 1:1.

Namespace

Code

public function buildForm(array $form, FormStateInterface $form_state) {
    $form['favorites'] = [
        '#type' => 'details',
        '#open' => TRUE,
        '#tree' => TRUE,
        '#title' => 'Favorite fruits',
    ];
    $form['favorites']['first'] = [
        '#type' => 'textfield',
        '#title' => 'First choice',
        '#config_target' => new ConfigTarget('form_test.object', 'favorite_fruits', fromConfig: fn(?array $favorite_fruits): string => $favorite_fruits[0] ?? 'Mango', toConfig: fn(string $first, FormStateInterface $form_state): array => [
            0 => $first,
            1 => $form_state->getValue([
                'favorites',
                'second',
            ]),
        ]),
    ];
    $form['favorites']['second'] = [
        '#type' => 'textfield',
        '#title' => 'Second choice',
        '#config_target' => new ConfigTarget('form_test.object', 'favorite_fruits.1', fn(?string $second_favorite_fruit): string => $second_favorite_fruit ?? 'Orange', fn() => ToConfig::NoOp),
    ];
    $form['could_not_live_without'] = [
        '#weight' => 10,
        '#type' => 'textfield',
        '#title' => 'I could not live without',
        '#placeholder' => 'vegetables',
        '#wrapper_attributes' => [
            'class' => [
                'container-inline',
            ],
        ],
        '#config_target' => new ConfigTarget('form_test.object', 'could_not_live_without', toConfig: function (string $could_not_live_without, FormStateInterface $form_state) : ToConfig|string {
            if (empty($form_state->getValue([
                'favorites',
                'first',
            ]))) {
                return ToConfig::DeleteKey;
            }
            if (empty($form_state->getValue([
                'favorites',
                'second',
            ]))) {
                return ToConfig::DeleteKey;
            }
            if (empty($form_state->getValue([
                'vegetables',
                'favorite',
            ]))) {
                return ToConfig::DeleteKey;
            }
            if (empty($form_state->getValue([
                'vegetables',
                'nemesis',
            ]))) {
                return ToConfig::DeleteKey;
            }
            return $could_not_live_without;
        }),
        // Only if everything else is answered will this be asked.
'#states' => [
            'visible' => [
                // 2 favorite fruits.
':input[name="favorites[first]"]' => [
                    'empty' => FALSE,
                ],
                ':input[name="favorites[second]"]' => [
                    'empty' => FALSE,
                ],
                // Favorite & nemesis vegetable.
':input[name="vegetables[favorite]"]' => [
                    'empty' => FALSE,
                ],
                ':input[name="vegetables[nemesis]"]' => [
                    'empty' => FALSE,
                ],
            ],
        ],
    ];
    return parent::buildForm($form, $form_state);
}