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<?php
namespace Drupal\datetime_range\Plugin\Field\FieldType;
use Drupal\Core\Datetime\DrupalDateTime;
use Drupal\Core\Entity\FieldableEntityInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemList;
use Drupal\Core\Form\FormStateInterface;
use Drupal\datetime\Plugin\Field\FieldType\DateTimeFieldItemList;
use Drupal\datetime\Plugin\Field\FieldType\DateTimeItemInterface;
class DateRangeFieldItemList extends DateTimeFieldItemList {
public function defaultValuesForm(array &$form, FormStateInterface $form_state) {
if (empty($this
->getFieldDefinition()
->getDefaultValueCallback())) {
$default_value = $this
->getFieldDefinition()
->getDefaultValueLiteral();
$element = parent::defaultValuesForm($form, $form_state);
$element['default_date_type']['#title'] = $this
->t('Default start date');
$element['default_date_type']['#description'] = $this
->t('Set a default value for the start date.');
$element['default_end_date_type'] = [
'#type' => 'select',
'#title' => $this
->t('Default end date'),
'#description' => $this
->t('Set a default value for the end date.'),
'#default_value' => isset($default_value[0]['default_end_date_type']) ? $default_value[0]['default_end_date_type'] : '',
'#options' => [
static::DEFAULT_VALUE_NOW => $this
->t('Current date'),
static::DEFAULT_VALUE_CUSTOM => $this
->t('Relative date'),
],
'#empty_value' => '',
];
$element['default_end_date'] = [
'#type' => 'textfield',
'#title' => $this
->t('Relative default value'),
'#description' => $this
->t("Describe a time by reference to the current day, like '+90 days' (90 days from the day the field is created) or '+1 Saturday' (the next Saturday). See <a href=\"http://php.net/manual/function.strtotime.php\">strtotime</a> for more details."),
'#default_value' => isset($default_value[0]['default_end_date_type']) && $default_value[0]['default_end_date_type'] == static::DEFAULT_VALUE_CUSTOM ? $default_value[0]['default_end_date'] : '',
'#states' => [
'visible' => [
':input[id="edit-default-value-input-default-end-date-type"]' => [
'value' => static::DEFAULT_VALUE_CUSTOM,
],
],
],
];
return $element;
}
}
public function defaultValuesFormValidate(array $element, array &$form, FormStateInterface $form_state) {
if ($form_state
->getValue([
'default_value_input',
'default_date_type',
]) == static::DEFAULT_VALUE_CUSTOM) {
$is_strtotime = @strtotime($form_state
->getValue([
'default_value_input',
'default_date',
]));
if (!$is_strtotime) {
$form_state
->setErrorByName('default_value_input][default_date', $this
->t('The relative start date value entered is invalid.'));
}
}
if ($form_state
->getValue([
'default_value_input',
'default_end_date_type',
]) == static::DEFAULT_VALUE_CUSTOM) {
$is_strtotime = @strtotime($form_state
->getValue([
'default_value_input',
'default_end_date',
]));
if (!$is_strtotime) {
$form_state
->setErrorByName('default_value_input][default_end_date', $this
->t('The relative end date value entered is invalid.'));
}
}
}
public function defaultValuesFormSubmit(array $element, array &$form, FormStateInterface $form_state) {
if ($form_state
->getValue([
'default_value_input',
'default_date_type',
]) || $form_state
->getValue([
'default_value_input',
'default_end_date_type',
])) {
if ($form_state
->getValue([
'default_value_input',
'default_date_type',
]) == static::DEFAULT_VALUE_NOW) {
$form_state
->setValueForElement($element['default_date'], static::DEFAULT_VALUE_NOW);
}
if ($form_state
->getValue([
'default_value_input',
'default_end_date_type',
]) == static::DEFAULT_VALUE_NOW) {
$form_state
->setValueForElement($element['default_end_date'], static::DEFAULT_VALUE_NOW);
}
return [
$form_state
->getValue('default_value_input'),
];
}
return [];
}
public static function processDefaultValue($default_value, FieldableEntityInterface $entity, FieldDefinitionInterface $definition) {
$default_value = FieldItemList::processDefaultValue($default_value, $entity, $definition);
if (!empty($default_value[0]['default_date_type']) || !empty($default_value[0]['default_end_date_type'])) {
$storage_format = $definition
->getSetting('datetime_type') == DateRangeItem::DATETIME_TYPE_DATE ? DateTimeItemInterface::DATE_STORAGE_FORMAT : DateTimeItemInterface::DATETIME_STORAGE_FORMAT;
$default_values = [
[],
];
if (!empty($default_value[0]['default_date_type'])) {
$start_date = new DrupalDateTime($default_value[0]['default_date'], DateTimeItemInterface::STORAGE_TIMEZONE);
$start_value = $start_date
->format($storage_format);
$default_values[0]['value'] = $start_value;
$default_values[0]['start_date'] = $start_date;
}
if (!empty($default_value[0]['default_end_date_type'])) {
$end_date = new DrupalDateTime($default_value[0]['default_end_date'], DateTimeItemInterface::STORAGE_TIMEZONE);
$end_value = $end_date
->format($storage_format);
$default_values[0]['end_value'] = $end_value;
$default_values[0]['end_date'] = $end_date;
}
$default_value = $default_values;
}
return $default_value;
}
}