public static Datetime::valueCallback(&$element, $input, FormStateInterface $form_state)
Determines how user input is mapped to an element's #value property.
Parameters
array $element: An associative array containing the properties of the element.
mixed $input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.
\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.
Return value
mixed The value to assign to the element.
Overrides FormElement::valueCallback
File
- core/lib/Drupal/Core/Datetime/Element/Datetime.php, line 70
Class
- Datetime
- Provides a datetime element.
Namespace
Drupal\Core\Datetime\Element
Code
public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
if ($input !== FALSE) {
$date_input = $element['#date_date_element'] != 'none' && !empty($input['date']) ? $input['date'] : '';
$time_input = $element['#date_time_element'] != 'none' && !empty($input['time']) ? $input['time'] : '';
$date_format = $element['#date_date_element'] != 'none' ? static::getHtml5DateFormat($element) : '';
$time_format = $element['#date_time_element'] != 'none' ? static::getHtml5TimeFormat($element) : '';
$timezone = !empty($element['#date_timezone']) ? $element['#date_timezone'] : NULL;
// Seconds will be omitted in a post in case there's no entry.
if (!empty($time_input) && strlen($time_input) == 5) {
$time_input .= ':00';
}
try {
$date_time_format = trim($date_format . ' ' . $time_format);
$date_time_input = trim($date_input . ' ' . $time_input);
$date = DrupalDateTime::createFromFormat($date_time_format, $date_time_input, $timezone);
}
catch (\Exception $e) {
$date = NULL;
}
$input = array(
'date' => $date_input,
'time' => $time_input,
'object' => $date,
);
}
else {
$date = $element['#default_value'];
if ($date instanceof DrupalDateTime && !$date->hasErrors()) {
$input = array(
'date' => $date->format($element['#date_date_format']),
'time' => $date->format($element['#date_time_format']),
'object' => $date,
);
}
else {
$input = array(
'date' => '',
'time' => '',
'object' => NULL,
);
}
}
return $input;
}
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