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[Serializer] Added functionality to parse string boolean values into object boolean fields on denormalization #42716

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[Serializer] Added functionality to parse string boolean values into object boolean fields on denormalization #42716

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8e6b1f8
Added ENABLE_STRING_BOOL_VALUE attribute and logic to Serializer Obje…
aurimasniekis Aug 25, 2021
c7c3d3a
Merge branch 'symfony:5.4' into 5.4
aurimasniekis Dec 16, 2021
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17 changes: 17 additions & 0 deletions 17 src/Symfony/Component/Serializer/Normalizer/AbstractObjectNormalizer.php
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,15 @@ abstract class AbstractObjectNormalizer extends AbstractNormalizer
*/
public const DISABLE_TYPE_ENFORCEMENT = 'disable_type_enforcement';

/**
* While denormalizing object type boolean fields try to parse string values
* into boolean values.
*
* ["true", "yes", "on", "1"] => true
* ["false", "no", "off", "0", ""] => false
*/
public const ENABLE_STRING_BOOL_VALUE = 'enable_string_bool_values';

/**
* Flag to control whether fields with the value `null` should be output
* when normalizing or omitted.
Expand Down Expand Up @@ -573,6 +582,14 @@ private function validateAndDenormalize(array $types, string $currentClass, stri
return (float) $data;
}

if (($context[self::ENABLE_STRING_BOOL_VALUE] ?? $this->defaultContext[self::ENABLE_STRING_BOOL_VALUE] ?? false) && Type::BUILTIN_TYPE_BOOL === $builtinType && \is_string($data)) {
if (null !== $booleanValue = filter_var($data, \FILTER_VALIDATE_BOOL, \FILTER_NULL_ON_FAILURE)) {
return $booleanValue;
}

throw new NotNormalizableValueException(sprintf('The value of the "%s" attribute for class "%s" must be one of "true", "yes", "on", "1", "false", "no", "off", "0", "" ("%s" given).', $attribute, $currentClass, $data));
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Suggested change
throw new NotNormalizableValueException(sprintf('The value of the "%s" attribute for class "%s" must be one of "true", "yes", "on", "1", "false", "no", "off", "0", "" ("%s" given).', $attribute, $currentClass, $data));
throw new NotNormalizableValueException(sprintf('The value of the "%s" attribute for class "%s" must be one of "true", "yes", "on", "1", "false", "no", "off", "0", ""(empty string) ("%s" given).', $attribute, $currentClass, $data));

Not sure if this could help and if it makes sense

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@aurimasniekis aurimasniekis Aug 25, 2021 •
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Maybe, but I was trying to follow Symfony style from exceptions around.

}

if (('is_'.$builtinType)($data)) {
return $data;
}
Expand Down
107 changes: 107 additions & 0 deletions 107 src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php
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Expand Up @@ -362,6 +362,83 @@ private function getDenormalizerForObjectWithBasicProperties()
return $denormalizer;
}

public function testDenormalizeBasicTypePropertiesWithStringBoolValues()
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Wouldn't it be better robuste a dataProvider here? The getDenormalizerForObject...() is tight coupled to the number of values provided by the on consecutive calls, while it's not supposed to be extended in the future I guess, it feels a bit weird.

While using a dataProvider it would be less complex and you don't the onConscutiveCalls anymore

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If this was my own library I would have written tests differently, but I tried to keep with the same style the all other tests are done in the file.

symfony/src/Symfony/Component/Serializer/Tests/Normalizer/AbstractObjectNormalizerTest.php

Lines 292 to 440 in 8e6b1f8

public function testDenormalizeBasicTypePropertiesFromXml()
{
$denormalizer = $this->getDenormalizerForObjectWithBasicProperties();
// bool
$objectWithBooleanProperties = $denormalizer->denormalize(
[
'boolTrue1' => 'true',
'boolFalse1' => 'false',
'boolTrue2' => '1',
'boolFalse2' => '0',
'int1' => '4711',
'int2' => '-4711',
'float1' => '123.456',
'float2' => '-1.2344e56',
'float3' => '45E-6',
'floatNaN' => 'NaN',
'floatInf' => 'INF',
'floatNegInf' => '-INF',
],
ObjectWithBasicProperties::class,
'xml'
);
$this->assertInstanceOf(ObjectWithBasicProperties::class, $objectWithBooleanProperties);
// Bool Properties
$this->assertTrue($objectWithBooleanProperties->boolTrue1);
$this->assertFalse($objectWithBooleanProperties->boolFalse1);
$this->assertTrue($objectWithBooleanProperties->boolTrue2);
$this->assertFalse($objectWithBooleanProperties->boolFalse2);
// Integer Properties
$this->assertEquals(4711, $objectWithBooleanProperties->int1);
$this->assertEquals(-4711, $objectWithBooleanProperties->int2);
// Float Properties
$this->assertEqualsWithDelta(123.456, $objectWithBooleanProperties->float1, 0.01);
$this->assertEqualsWithDelta(-1.2344e56, $objectWithBooleanProperties->float2, 1);
$this->assertEqualsWithDelta(45E-6, $objectWithBooleanProperties->float3, 1);
$this->assertNan($objectWithBooleanProperties->floatNaN);
$this->assertInfinite($objectWithBooleanProperties->floatInf);
$this->assertEquals(-\INF, $objectWithBooleanProperties->floatNegInf);
}
private function getDenormalizerForObjectWithBasicProperties()
{
$extractor = $this->createMock(PhpDocExtractor::class);
$extractor->method('getTypes')
->will($this->onConsecutiveCalls(
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('int')],
[new Type('int')],
[new Type('float')],
[new Type('float')],
[new Type('float')],
[new Type('float')],
[new Type('float')],
[new Type('float')]
));
$denormalizer = new AbstractObjectNormalizerCollectionDummy(null, null, $extractor);
$arrayDenormalizer = new ArrayDenormalizerDummy();
$serializer = new SerializerCollectionDummy([$arrayDenormalizer, $denormalizer]);
$arrayDenormalizer->setSerializer($serializer);
$denormalizer->setSerializer($serializer);
return $denormalizer;
}
public function testDenormalizeBasicTypePropertiesWithStringBoolValues()
{
$denormalizer = $this->getDenormalizerForObjectWithStringBoolValues();
// bool
$objectWithBooleanProperties = $denormalizer->denormalize(
[
'true' => 'true',
'yes' => 'yEs',
'on' => 'ON',
'one' => '1',
'false' => 'falsE',
'no' => 'No',
'off' => 'OfF',
'zero' => '0',
'empty' => '',
],
ObjectWithStringBoolean::class,
null,
[AbstractObjectNormalizer::ENABLE_STRING_BOOL_VALUE => true]
);
$this->assertInstanceOf(ObjectWithStringBoolean::class, $objectWithBooleanProperties);
$this->assertTrue($objectWithBooleanProperties->true);
$this->assertTrue($objectWithBooleanProperties->yes);
$this->assertTrue($objectWithBooleanProperties->on);
$this->assertTrue($objectWithBooleanProperties->one);
$this->assertFalse($objectWithBooleanProperties->false);
$this->assertFalse($objectWithBooleanProperties->no);
$this->assertFalse($objectWithBooleanProperties->off);
$this->assertFalse($objectWithBooleanProperties->zero);
$this->assertFalse($objectWithBooleanProperties->empty);
}
public function testDenormalizeBasicTypePropertiesWithBadStringBoolValues()
{
$denormalizer = $this->getDenormalizerForObjectWithStringBoolValues();
$this->expectException(NotNormalizableValueException::class);
$this->expectExceptionMessage('The value of the "yes" attribute for class "Symfony\Component\Serializer\Tests\Normalizer\ObjectWithStringBoolean" must be one of "true", "yes", "on", "1", "false", "no", "off", "0", "" ("foo" given).');
$objectWithBooleanProperties = $denormalizer->denormalize(
[
'yes' => 'foo',
],
ObjectWithStringBoolean::class,
null,
[AbstractObjectNormalizer::ENABLE_STRING_BOOL_VALUE => true]
);
}
private function getDenormalizerForObjectWithStringBoolValues()
{
$extractor = $this->createMock(PhpDocExtractor::class);
$extractor->method('getTypes')
->will($this->onConsecutiveCalls(
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')]
));
$denormalizer = new AbstractObjectNormalizerCollectionDummy(null, null, $extractor);
$arrayDenormalizer = new ArrayDenormalizerDummy();
$serializer = new SerializerCollectionDummy([$arrayDenormalizer, $denormalizer]);
$arrayDenormalizer->setSerializer($serializer);
$denormalizer->setSerializer($serializer);
return $denormalizer;
}

{
$denormalizer = $this->getDenormalizerForObjectWithStringBoolValues();

// bool
$objectWithBooleanProperties = $denormalizer->denormalize(
[
'true' => 'true',
'yes' => 'yEs',
'on' => 'ON',
'one' => '1',
'false' => 'falsE',
'no' => 'No',
'off' => 'OfF',
'zero' => '0',
'empty' => '',
],
ObjectWithStringBoolean::class,
null,
[AbstractObjectNormalizer::ENABLE_STRING_BOOL_VALUE => true]
);

$this->assertInstanceOf(ObjectWithStringBoolean::class, $objectWithBooleanProperties);

$this->assertTrue($objectWithBooleanProperties->true);
$this->assertTrue($objectWithBooleanProperties->yes);
$this->assertTrue($objectWithBooleanProperties->on);
$this->assertTrue($objectWithBooleanProperties->one);
$this->assertFalse($objectWithBooleanProperties->false);
$this->assertFalse($objectWithBooleanProperties->no);
$this->assertFalse($objectWithBooleanProperties->off);
$this->assertFalse($objectWithBooleanProperties->zero);
$this->assertFalse($objectWithBooleanProperties->empty);
}

public function testDenormalizeBasicTypePropertiesWithBadStringBoolValues()
{
$denormalizer = $this->getDenormalizerForObjectWithStringBoolValues();

$this->expectException(NotNormalizableValueException::class);
$this->expectExceptionMessage('The value of the "yes" attribute for class "Symfony\Component\Serializer\Tests\Normalizer\ObjectWithStringBoolean" must be one of "true", "yes", "on", "1", "false", "no", "off", "0", "" ("foo" given).');

$objectWithBooleanProperties = $denormalizer->denormalize(
[
'yes' => 'foo',
],
ObjectWithStringBoolean::class,
null,
[AbstractObjectNormalizer::ENABLE_STRING_BOOL_VALUE => true]
);
}

private function getDenormalizerForObjectWithStringBoolValues()
{
$extractor = $this->createMock(PhpDocExtractor::class);
$extractor->method('getTypes')
->will($this->onConsecutiveCalls(
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')],
[new Type('bool')]
));

$denormalizer = new AbstractObjectNormalizerCollectionDummy(null, null, $extractor);
$arrayDenormalizer = new ArrayDenormalizerDummy();
$serializer = new SerializerCollectionDummy([$arrayDenormalizer, $denormalizer]);
$arrayDenormalizer->setSerializer($serializer);
$denormalizer->setSerializer($serializer);

return $denormalizer;
}

/**
* Test that additional attributes throw an exception if no metadata factory is specified.
*/
Expand Down Expand Up @@ -416,6 +493,36 @@ public function instantiateObject(array &$data, string $class, array &$context,
}
}

class ObjectWithStringBoolean
{
/** @var bool */
public $true;
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/** @var bool */
public $yes;

/** @var bool */
public $on;

/** @var bool */
public $one;

/** @var bool */
public $false;

/** @var bool */
public $no;

/** @var bool */
public $off;

/** @var bool */
public $zero;

/** @var bool */
public $empty;
}

class Dummy
{
public $foo;
Expand Down
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