/**
* Converts the given $date to a valid PHP's DateTime object using a jQuery's
* date/time $format.
*
* @param string $format A jQuery's date/time format. e.g. `'today is:' yy-mm-dd`
* @param string $date A date formatted using $format. e.g. `today is: 2015-01-30`
* @return \DateTime|false Date object on success, false on error
*/
public static function createFromFormat($format, $date)
{
if (preg_match_all("/'([^']+)'/", $format, $matches)) {
foreach ($matches[1] as $literal) {
$date = str_replace($literal, '', $date);
}
$date = preg_replace('/\\s{2,}/', ' ', $date);
// remove double spaces
}
$date = trim($date);
$format = DateToolbox::normalizeFormat($format);
return date_create_from_format($format, $date);
}
/**
* {@inheritDoc}
*/
public function validateSettings(FieldInstance $instance, array $settings, Validator $validator)
{
$validator->allowEmpty('time_format')->add('time_format', 'validTimeFormat', ['rule' => function ($value, $context) use($settings) {
if (empty($settings['timepicker'])) {
return true;
}
return DateToolbox::validateTimeFormat($value);
}, 'message' => __d('field', 'Invalid time format.')])->allowEmpty('format')->add('format', 'validDateFormat', ['rule' => function ($value, $context) {
return DateToolbox::validateDateFormat($value);
}, 'message' => __d('field', 'Invalid date format.')]);
}