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<?php
namespace Drupal\inline_entity_form\Plugin\Field\FieldWidget;
use Drupal\Component\Utility\NestedArray;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
use Drupal\inline_entity_form\TranslationHelper;
class InlineEntityFormSimple extends InlineEntityFormBase {
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
$parents = array_merge($element['#field_parents'], [
$items
->getName(),
]);
$ief_id = $this
->makeIefId($parents);
$form_state
->set([
'inline_entity_form',
$ief_id,
], []);
$element = [
'#type' => $this
->getSetting('collapsible') ? 'details' : 'fieldset',
'#field_title' => $this->fieldDefinition
->getLabel(),
'#after_build' => [
[
get_class($this),
'removeTranslatabilityClue',
],
],
] + $element;
if ($element['#type'] == 'details') {
$element['#open'] = $form_state
->getUserInput() ?: !$this
->getSetting('collapsed');
}
$item = $items
->get($delta);
if ($item->target_id && !$item->entity) {
$element['warning']['#markup'] = $this
->t('Unable to load the referenced entity.');
return $element;
}
$entity = $item->entity;
$op = $entity ? 'edit' : 'add';
$langcode = $items
->getEntity()
->language()
->getId();
$parents = array_merge($element['#field_parents'], [
$items
->getName(),
$delta,
'inline_entity_form',
]);
$bundle = $this
->getBundle();
$element['inline_entity_form'] = $this
->getInlineEntityForm($op, $bundle, $langcode, $delta, $parents, $entity);
if ($op == 'edit') {
if (!$entity
->access('update')) {
$element['entity_label'] = [
'#type' => 'markup',
'#markup' => $entity
->label(),
];
$element['inline_entity_form']['#access'] = FALSE;
}
}
return $element;
}
protected function formMultipleElements(FieldItemListInterface $items, array &$form, FormStateInterface $form_state) {
$element = parent::formMultipleElements($items, $form, $form_state);
if (!$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);
$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, $field_state);
}
if (!$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;
}
public function extractFormValues(FieldItemListInterface $items, array $form, FormStateInterface $form_state) {
if ($this
->isDefaultValueWidget($form_state)) {
$items
->filterEmptyItems();
return;
}
$field_name = $this->fieldDefinition
->getName();
$parents = array_merge($form['#parents'], [
$field_name,
]);
$submitted_values = $form_state
->getValue($parents);
$values = [];
foreach ($items as $delta => $value) {
$element = NestedArray::getValue($form, [
$field_name,
'widget',
$delta,
]);
$entity = $element['inline_entity_form']['#entity'];
$weight = isset($submitted_values[$delta]['_weight']) ? $submitted_values[$delta]['_weight'] : 0;
$values[$weight] = [
'entity' => $entity,
];
}
ksort($values);
$values = array_values($values);
$values = $this
->massageFormValues($values, $form, $form_state);
$items
->setValue($values);
$items
->filterEmptyItems();
$ief_id = $this
->makeIefId($parents);
$widget_state = [
'instance' => $this->fieldDefinition,
'delete' => [],
'entities' => [],
];
foreach ($items as $delta => $value) {
TranslationHelper::updateEntityLangcode($value->entity, $form_state);
$widget_state['entities'][$delta] = [
'entity' => $value->entity,
'needs_save' => TRUE,
];
}
$form_state
->set([
'inline_entity_form',
$ief_id,
], $widget_state);
$field_name = $this->fieldDefinition
->getName();
$field_state = WidgetBase::getWidgetState($form['#parents'], $field_name, $form_state);
foreach ($items as $delta => $item) {
$field_state['original_deltas'][$delta] = isset($item->_original_delta) ? $item->_original_delta : $delta;
unset($item->_original_delta, $item->weight);
}
WidgetBase::setWidgetState($form['#parents'], $field_name, $form_state, $field_state);
}
public static function isApplicable(FieldDefinitionInterface $field_definition) {
$handler_settings = $field_definition
->getSettings()['handler_settings'];
$target_entity_type_id = $field_definition
->getFieldStorageDefinition()
->getSetting('target_type');
$target_entity_type = \Drupal::entityTypeManager()
->getDefinition($target_entity_type_id);
if (!$target_entity_type
->getKey('bundle')) {
return TRUE;
}
if (empty($handler_settings['target_bundles'])) {
return FALSE;
}
if (count($handler_settings['target_bundles']) != 1) {
return FALSE;
}
return TRUE;
}
protected function getBundle() {
if (!empty($this
->getFieldSetting('handler_settings')['target_bundles'])) {
return reset($this
->getFieldSetting('handler_settings')['target_bundles']);
}
}
}