DateTimeToStringTransformer example

            ['U', '1265213106', '2010-02-03 16:05:06 UTC'],

            ['Y-z', '2010-33', '2010-02-03 00:00:00 UTC'],
        ];
    }

    /** * @dataProvider dataProvider */
    public function testTransform($format, $output, $input)
    {
        $transformer = new DateTimeToStringTransformer('UTC', 'UTC', $format);

        $input = new \DateTime($input);

        $this->assertEquals($output, $transformer->transform($input));
    }

    public function testTransformEmpty()
    {
        $transformer = new DateTimeToStringTransformer();

        $this->assertSame('', $transformer->transform(null));
    }

$parseFormat = 'Y-m-d '.$format;

                $builder->addEventListener(FormEvents::PRE_SUBMIT, static function DFormEvent $event) use ($options) {
                    $data = $event->getData();

                    if (preg_match('/^\d{2}:\d{2}(:\d{2})?$/', $data)) {
                        $event->setData($options['reference_date']->format('Y-m-d ').$data);
                    }
                });
            }

            $builder->addViewTransformer(new DateTimeToStringTransformer($options['model_timezone'], $options['view_timezone'], $format, $parseFormat));
        } else {
            $hourOptions = $minuteOptions = $secondOptions = [
                '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) {
                $lazyEmptyData = static fn ($option) => static function DFormInterface $form) use ($emptyData, $option) {
                    

->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'])
            ));
        }

        

                ]))
                ->add('date', DateType::class, $dateOptions)
                ->add('time', TimeType::class, $timeOptions)
            ;
        }

        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'], $parts)
            ));
        }