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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form\Extension\Core\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Exception\LogicException;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeImmutableToDateTimeTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToArrayTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToLocalizedStringTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToStringTransformer;
use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToTimestampTransformer;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\Form\ReversedTransformer;
use Symfony\Component\OptionsResolver\Exception\InvalidOptionsException;
use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolver;
class DateType extends AbstractType
{
public const DEFAULT_FORMAT = \IntlDateFormatter::MEDIUM;
public const HTML5_FORMAT = 'yyyy-MM-dd';
private const ACCEPTED_FORMATS = [
\IntlDateFormatter::FULL,
\IntlDateFormatter::LONG,
\IntlDateFormatter::MEDIUM,
\IntlDateFormatter::SHORT,
];
private const WIDGETS = [
'text' => TextType::class,
'choice' => ChoiceType::class,
];
/**
* {@inheritdoc}
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$dateFormat = \is_int($options['format']) ? $options['format'] : self::DEFAULT_FORMAT;
$timeFormat = \IntlDateFormatter::NONE;
$calendar = \IntlDateFormatter::GREGORIAN;
$pattern = \is_string($options['format']) ? $options['format'] : '';
if (!\in_array($dateFormat, self::ACCEPTED_FORMATS, true)) {
throw new InvalidOptionsException('The "format" option must be one of the IntlDateFormatter constants (FULL, LONG, MEDIUM, SHORT) or a string representing a custom format.');
}
if ('single_text' === $options['widget']) {
if ('' !== $pattern && !str_contains($pattern, 'y') && !str_contains($pattern, 'M') && !str_contains($pattern, 'd')) {
throw new InvalidOptionsException(sprintf('The "format" option should contain the letters "y", "M" or "d". Its current value is "%s".', $pattern));
}
$builder->addViewTransformer(new DateTimeToLocalizedStringTransformer(
$options['model_timezone'],
$options['view_timezone'],
$dateFormat,
$timeFormat,
$calendar,
$pattern
));
} else {
if ('' !== $pattern && (!str_contains($pattern, 'y') || !str_contains($pattern, 'M') || !str_contains($pattern, 'd'))) {
throw new InvalidOptionsException(sprintf('The "format" option should contain the letters "y", "M" and "d". Its current value is "%s".', $pattern));
}
$yearOptions = $monthOptions = $dayOptions = [
'error_bubbling' => true,
'empty_data' => '',
];
// when the form is compound the entries of the array are ignored in favor of children data
// so we need to handle the cascade setting here
$emptyData = $builder->getEmptyData() ?: [];
if ($emptyData instanceof \Closure) {
$lazyEmptyData = static function ($option) use ($emptyData) {
return static function (FormInterface $form) use ($emptyData, $option) {
$emptyData = $emptyData($form->getParent());
return $emptyData[$option] ?? '';
};
};
$yearOptions['empty_data'] = $lazyEmptyData('year');
$monthOptions['empty_data'] = $lazyEmptyData('month');
$dayOptions['empty_data'] = $lazyEmptyData('day');
} else {
if (isset($emptyData['year'])) {
$yearOptions['empty_data'] = $emptyData['year'];
}
if (isset($emptyData['month'])) {
$monthOptions['empty_data'] = $emptyData['month'];
}
if (isset($emptyData['day'])) {
$dayOptions['empty_data'] = $emptyData['day'];
}
}
if (isset($options['invalid_message'])) {
$dayOptions['invalid_message'] = $options['invalid_message'];
$monthOptions['invalid_message'] = $options['invalid_message'];
$yearOptions['invalid_message'] = $options['invalid_message'];
}
if (isset($options['invalid_message_parameters'])) {
$dayOptions['invalid_message_parameters'] = $options['invalid_message_parameters'];
$monthOptions['invalid_message_parameters'] = $options['invalid_message_parameters'];
$yearOptions['invalid_message_parameters'] = $options['invalid_message_parameters'];
}
$formatter = new \IntlDateFormatter(
\Locale::getDefault(),
$dateFormat,
$timeFormat,
// see https://bugs.php.net/66323
class_exists(\IntlTimeZone::class, false) ? \IntlTimeZone::createDefault() : null,
$calendar,
$pattern
);
// new \IntlDateFormatter may return null instead of false in case of failure, see https://bugs.php.net/66323
if (!$formatter) {
throw new InvalidOptionsException(intl_get_error_message(), intl_get_error_code());
}
$formatter->setLenient(false);
if ('choice' === $options['widget']) {
// Only pass a subset of the options to children
$yearOptions['choices'] = $this->formatTimestamps($formatter, '/y+/', $this->listYears($options['years']));
$yearOptions['placeholder'] = $options['placeholder']['year'];
$yearOptions['choice_translation_domain'] = $options['choice_translation_domain']['year'];
$monthOptions['choices'] = $this->formatTimestamps($formatter, '/[M|L]+/', $this->listMonths($options['months']));
$monthOptions['placeholder'] = $options['placeholder']['month'];
$monthOptions['choice_translation_domain'] = $options['choice_translation_domain']['month'];
$dayOptions['choices'] = $this->formatTimestamps($formatter, '/d+/', $this->listDays($options['days']));
$dayOptions['placeholder'] = $options['placeholder']['day'];
$dayOptions['choice_translation_domain'] = $options['choice_translation_domain']['day'];
}
// Append generic carry-along options
foreach (['required', 'translation_domain'] as $passOpt) {
$yearOptions[$passOpt] = $monthOptions[$passOpt] = $dayOptions[$passOpt] = $options[$passOpt];
}
$builder
->add('year', self::WIDGETS[$options['widget']], $yearOptions)
->add('month', self::WIDGETS[$options['widget']], $monthOptions)
->add('day', self::WIDGETS[$options['widget']], $dayOptions)
->addViewTransformer(new DateTimeToArrayTransformer(
$options['model_timezone'], $options['view_timezone'], ['year', 'month', 'day']
))
->setAttribute('formatter', $formatter)
;
}
if ('datetime_immutable' === $options['input']) {
$builder->addModelTransformer(new DateTimeImmutableToDateTimeTransformer());
} elseif ('string' === $options['input']) {
$builder->addModelTransformer(new ReversedTransformer(
new DateTimeToStringTransformer($options['model_timezone'], $options['model_timezone'], $options['input_format'])
));
} elseif ('timestamp' === $options['input']) {
$builder->addModelTransformer(new ReversedTransformer(
new DateTimeToTimestampTransformer($options['model_timezone'], $options['model_timezone'])
));
} elseif ('array' === $options['input']) {
$builder->addModelTransformer(new ReversedTransformer(
new DateTimeToArrayTransformer($options['model_timezone'], $options['model_timezone'], ['year', 'month', 'day'])
));
}
}
/**
* {@inheritdoc}
*/
public function finishView(FormView $view, FormInterface $form, array $options)
{
$view->vars['widget'] = $options['widget'];
// Change the input to an HTML5 date input if
// * the widget is set to "single_text"
// * the format matches the one expected by HTML5
// * the html5 is set to true
if ($options['html5'] && 'single_text' === $options['widget'] && self::HTML5_FORMAT === $options['format']) {
$view->vars['type'] = 'date';
}
if ($form->getConfig()->hasAttribute('formatter')) {
$pattern = $form->getConfig()->getAttribute('formatter')->getPattern();
// remove special characters unless the format was explicitly specified
if (!\is_string($options['format'])) {
// remove quoted strings first
$pattern = preg_replace('/\'[^\']+\'/', '', $pattern);
// remove remaining special chars
$pattern = preg_replace('/[^yMd]+/', '', $pattern);
}
// set right order with respect to locale (e.g.: de_DE=dd.MM.yy; en_US=M/d/yy)
// lookup various formats at http://userguide.icu-project.org/formatparse/datetime
if (preg_match('/^([yMd]+)[^yMd]*([yMd]+)[^yMd]*([yMd]+)$/', $pattern)) {
$pattern = preg_replace(['/y+/', '/M+/', '/d+/'], ['{{ year }}', '{{ month }}', '{{ day }}'], $pattern);
} else {
// default fallback
$pattern = '{{ year }}{{ month }}{{ day }}';
}
$view->vars['date_pattern'] = $pattern;
}
}
/**
* {@inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
$compound = function (Options $options) {
return 'single_text' !== $options['widget'];
};
$placeholderDefault = function (Options $options) {
return $options['required'] ? null : '';
};
$placeholderNormalizer = function (Options $options, $placeholder) use ($placeholderDefault) {
if (\is_array($placeholder)) {
$default = $placeholderDefault($options);
return array_merge(
['year' => $default, 'month' => $default, 'day' => $default],
$placeholder
);
}
return [
'year' => $placeholder,
'month' => $placeholder,
'day' => $placeholder,
];
};
$choiceTranslationDomainNormalizer = function (Options $options, $choiceTranslationDomain) {
if (\is_array($choiceTranslationDomain)) {
$default = false;
return array_replace(
['year' => $default, 'month' => $default, 'day' => $default],
$choiceTranslationDomain
);
}
return [
'year' => $choiceTranslationDomain,
'month' => $choiceTranslationDomain,
'day' => $choiceTranslationDomain,
];
};
$format = function (Options $options) {
return 'single_text' === $options['widget'] ? self::HTML5_FORMAT : self::DEFAULT_FORMAT;
};
$resolver->setDefaults([
'years' => range((int) date('Y') - 5, (int) date('Y') + 5),
'months' => range(1, 12),
'days' => range(1, 31),
'widget' => 'choice',
'input' => 'datetime',
'format' => $format,
'model_timezone' => null,
'view_timezone' => null,
'placeholder' => $placeholderDefault,
'html5' => true,
// Don't modify \DateTime classes by reference, we treat
// them like immutable value objects
'by_reference' => false,
'error_bubbling' => false,
// If initialized with a \DateTime object, FormType initializes
// this option to "\DateTime". Since the internal, normalized
// representation is not \DateTime, but an array, we need to unset
// this option.
'data_class' => null,
'compound' => $compound,
'empty_data' => function (Options $options) {
return $options['compound'] ? [] : '';
},
'choice_translation_domain' => false,
'input_format' => 'Y-m-d',
'invalid_message' => function (Options $options, $previousValue) {
return ($options['legacy_error_messages'] ?? true)
? $previousValue
: 'Please enter a valid date.';
},
]);
$resolver->setNormalizer('placeholder', $placeholderNormalizer);
$resolver->setNormalizer('choice_translation_domain', $choiceTranslationDomainNormalizer);
$resolver->setAllowedValues('input', [
'datetime',
'datetime_immutable',
'string',
'timestamp',
'array',
]);
$resolver->setAllowedValues('widget', [
'single_text',
'text',
'choice',
]);
$resolver->setAllowedTypes('format', ['int', 'string']);
$resolver->setAllowedTypes('years', 'array');
$resolver->setAllowedTypes('months', 'array');
$resolver->setAllowedTypes('days', 'array');
$resolver->setAllowedTypes('input_format', 'string');
$resolver->setNormalizer('html5', function (Options $options, $html5) {
if ($html5 && 'single_text' === $options['widget'] && self::HTML5_FORMAT !== $options['format']) {
throw new LogicException(sprintf('Cannot use the "format" option of "%s" when the "html5" option is enabled.', self::class));
}
return $html5;
});
}
/**
* {@inheritdoc}
*/
public function getBlockPrefix()
{
return 'date';
}
private function formatTimestamps(\IntlDateFormatter $formatter, string $regex, array $timestamps)
{
$pattern = $formatter->getPattern();
$timezone = $formatter->getTimeZoneId();
$formattedTimestamps = [];
$formatter->setTimeZone('UTC');
if (preg_match($regex, $pattern, $matches)) {
$formatter->setPattern($matches[0]);
foreach ($timestamps as $timestamp => $choice) {
$formattedTimestamps[$formatter->format($timestamp)] = $choice;
}
// I'd like to clone the formatter above, but then we get a
// segmentation fault, so let's restore the old state instead
$formatter->setPattern($pattern);
}
$formatter->setTimeZone($timezone);
return $formattedTimestamps;
}
private function listYears(array $years)
{
$result = [];
foreach ($years as $year) {
$result[\PHP_INT_SIZE === 4 ? \DateTime::createFromFormat('Y e', $year.' UTC')->format('U') : gmmktime(0, 0, 0, 6, 15, $year)] = $year;
}
return $result;
}
private function listMonths(array $months)
{
$result = [];
foreach ($months as $month) {
$result[gmmktime(0, 0, 0, $month, 15)] = $month;
}
return $result;
}
private function listDays(array $days)
{
$result = [];
foreach ($days as $day) {
$result[gmmktime(0, 0, 0, 5, $day)] = $day;
}
return $result;
}
}