/**
* {@inheritdoc}
*/
protected function formMultipleElements(FieldItemListInterface $items, array &$form, FormStateInterface $form_state)
{
$element = parent::formMultipleElements($items, $form, $form_state);
// If we're using ulimited cardinality we don't display one empty item. Form
// validation will kick in if left empty which esentially means people won't
// be able to submit w/o creating another entity.
if (!$form_state->isSubmitted() && $element['#cardinality'] == FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED && $element['#max_delta'] > 0) {
$max = $element['#max_delta'];
unset($element[$max]);
$element['#max_delta'] = $max - 1;
$items->removeItem($max);
// Decrement the items count.
$field_name = $element['#field_name'];
$parents = $element[0]['#field_parents'];
$field_state = static::getWidgetState($parents, $field_name, $form_state);
$field_state['items_count']--;
static::setWidgetState($parents, $field_name, $form_state, $field_state);
}
// Remove add options if the user cannot add new entities.
if (!$this->canAddNew()) {
if (isset($element['add_more'])) {
unset($element['add_more']);
}
foreach (Element::children($element) as $delta) {
if (isset($element[$delta]['inline_entity_form'])) {
if ($element[$delta]['inline_entity_form']['#op'] == 'add') {
unset($element[$delta]);
}
}
}
}
return $element;
}
/**
* {@inheritdoc}
*/
protected function formMultipleElements(FieldItemListInterface $items, array &$form, FormStateInterface $form_state)
{
$element = parent::formMultipleElements($items, $form, $form_state);
// If we're using ulimited cardinality we don't display one empty item. Form
// validation will kick in if left empty which esentially means people won't
// be able to submit w/o creating another entity.
if ($element['#cardinality'] == FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED && $element['#max_delta'] > 0) {
$max = $element['#max_delta'];
unset($element[$max]);
$element['#max_delta'] = $max - 1;
$items->removeItem($max);
}
return $element;
}
/**
* {@inheritdoc}
*/
public function settingsSummary()
{
$summary = parent::settingsSummary();
$labels = $this->labels();
if ($this->getSetting('allow_new')) {
$summary[] = $this->t('New @label can be added.', ['@label' => $labels['plural']]);
} else {
$summary[] = $this->t('New @label can not be created.', ['@label' => $labels['plural']]);
}
$match_operator_options = $this->getMatchOperatorOptions();
if ($this->getSetting('allow_existing')) {
$summary[] = $this->t('Existing @label can be referenced and are matched with the %operator operator.', ['@label' => $labels['plural'], '%operator' => $match_operator_options[$this->getSetting('match_operator')]]);
} else {
$summary[] = $this->t('Existing @label can not be referenced.', ['@label' => $labels['plural']]);
}
return $summary;
}