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<?php
namespace Drupal\commerce_promotion\Plugin\Field\FieldWidget;
use Drupal\commerce_promotion\Entity\CouponInterface;
use Drupal\commerce_promotion\Entity\PromotionInterface;
use Drupal\commerce_promotion\PromotionUsageInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
class UsageLimitWidget extends WidgetBase implements ContainerFactoryPluginInterface {
protected $usage;
public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, array $third_party_settings, PromotionUsageInterface $usage) {
parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $third_party_settings);
$this->usage = $usage;
}
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static($plugin_id, $plugin_definition, $configuration['field_definition'], $configuration['settings'], $configuration['third_party_settings'], $container
->get('commerce_promotion.usage'));
}
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
$value = isset($items[$delta]->value) ? $items[$delta]->value : NULL;
$field_name = $this->fieldDefinition
->getName();
if ($field_name == 'usage_limit_customer') {
$title = $this
->t('Total per customer');
$default_count = 1;
$radios_field = 'limit_customer';
$description = '';
}
else {
$title = $this
->t('Total available');
$default_count = 10;
$radios_field = 'limit';
$usage = 0;
$entity = $items[$delta]
->getEntity();
if (!$entity
->isNew()) {
if ($entity instanceof PromotionInterface) {
$usage = $this->usage
->load($entity);
}
elseif ($entity instanceof CouponInterface) {
$usage = $this->usage
->loadByCoupon($entity);
}
}
$formatted_usage = $this
->formatPlural($usage, '1 use', '@count uses');
$description = $this
->t('Current usage: @usage.', [
'@usage' => $formatted_usage,
]);
}
$radio_parents = array_merge($form['#parents'], [
$field_name,
0,
$radios_field,
]);
$radio_path = array_shift($radio_parents);
$radio_path .= '[' . implode('][', $radio_parents) . ']';
$element[$radios_field] = [
'#type' => 'radios',
'#title' => $title,
'#options' => [
0 => $this
->t('Unlimited'),
1 => $this
->t('Limited number of uses'),
],
'#default_value' => $value ? 1 : 0,
];
$element[$field_name] = [
'#type' => 'number',
'#title' => $this
->t('Number of uses'),
'#title_display' => 'invisible',
'#default_value' => $value ?: $default_count,
'#description' => $description,
'#states' => [
'invisible' => [
':input[name="' . $radio_path . '"]' => [
'value' => 0,
],
],
],
];
return $element;
}
public function massageFormValues(array $values, array $form, FormStateInterface $form_state) {
$field_name = $this->fieldDefinition
->getName();
$radios_field = $field_name == 'usage_limit_customer' ? 'limit_customer' : 'limit';
$new_values = [];
foreach ($values as $key => $value) {
if (empty($value[$radios_field])) {
continue;
}
$new_values[$key] = $value[$field_name];
}
return $new_values;
}
public static function isApplicable(FieldDefinitionInterface $field_definition) {
$entity_type = $field_definition
->getTargetEntityTypeId();
$field_name = $field_definition
->getName();
$applicable_entity_type = in_array($entity_type, [
'commerce_promotion',
'commerce_promotion_coupon',
]);
$applicable_field_name = in_array($field_name, [
'usage_limit',
'usage_limit_customer',
]);
return $applicable_entity_type && $applicable_field_name;
}
}