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[Form] Add default validation to TextType field (and related)
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src/Symfony/Component/Form/Extension/Core/DataTransformer/ValueToStringTransformer.php
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<?php | ||
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/* | ||
* This file is part of the Symfony package. | ||
* | ||
* (c) Fabien Potencier <fabien@symfony.com> | ||
* | ||
* For the full copyright and license information, please view the LICENSE | ||
* file that was distributed with this source code. | ||
*/ | ||
|
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namespace Symfony\Component\Form\Extension\Core\DataTransformer; | ||
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use Symfony\Component\Form\DataTransformerInterface; | ||
use Symfony\Component\Form\Exception\UnexpectedTypeException; | ||
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/** | ||
* Transforms between a given value and a string. | ||
* | ||
* @author Joseph Bielawski <stloyd@gmail.com> | ||
*/ | ||
class ValueToStringTransformer implements DataTransformerInterface | ||
{ | ||
/** | ||
* Transforms a value into a string. | ||
* | ||
* @param mixed $value Mixed value. | ||
* | ||
* @return string String value. | ||
* | ||
* @throws UnexpectedTypeException if the given value is not a string or number | ||
*/ | ||
public function transform($value) | ||
{ | ||
if (null === $value) { | ||
return ''; | ||
} | ||
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if (!is_string($value) && !is_numeric($value)) { | ||
throw new UnexpectedTypeException($value, 'string or number'); | ||
} | ||
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return $value; | ||
} | ||
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/** | ||
* Transforms a value into a string. | ||
* | ||
* @param string $value String value. | ||
* | ||
* @return string String value. | ||
* | ||
* @throws UnexpectedTypeException if the given value is not a string | ||
*/ | ||
public function reverseTransform($value) | ||
{ | ||
if (null === $value) { | ||
return ''; | ||
} | ||
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if (!is_string($value)) { | ||
throw new UnexpectedTypeException($value, 'string'); | ||
} | ||
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return $value; | ||
} | ||
} |
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90
...fony/Tests/Component/Form/Extension/Core/DataTransformer/ValueToStringTransformerTest.php
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,90 @@ | ||
<?php | ||
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||
/* | ||
* This file is part of the Symfony package. | ||
* | ||
* (c) Fabien Potencier <fabien@symfony.com> | ||
* | ||
* For the full copyright and license information, please view the LICENSE | ||
* file that was distributed with this source code. | ||
*/ | ||
|
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namespace Symfony\Tests\Component\Form\Extension\Core\DataTransformer; | ||
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use Symfony\Component\Form\Extension\Core\DataTransformer\ValueToStringTransformer; | ||
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class ValueToStringTransformerTest extends \PHPUnit_Framework_TestCase | ||
{ | ||
protected $transformer; | ||
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protected function setUp() | ||
{ | ||
$this->transformer = new ValueToStringTransformer(); | ||
} | ||
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protected function tearDown() | ||
{ | ||
$this->transformer = null; | ||
} | ||
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/** | ||
* @dataProvider validDataProvider | ||
*/ | ||
public function testTransform($value, $transformed) | ||
{ | ||
$this->assertEquals($transformed, $this->transformer->transform($value)); | ||
} | ||
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/** | ||
* @dataProvider validDataProvider | ||
*/ | ||
public function testReverseTransform($value, $transformed) | ||
{ | ||
$this->assertEquals($transformed, $this->transformer->reverseTransform($transformed)); | ||
} | ||
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public function validDataProvider() | ||
{ | ||
return array( | ||
array('test', 'test'), | ||
array('', null), | ||
array(null, null), | ||
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array(0, '0'), | ||
array('0', '0'), | ||
array(1, '1'), | ||
array('123', '123'), | ||
array(1.23, '1.23'), | ||
); | ||
} | ||
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/** | ||
* @dataProvider invalidDataProvider | ||
*/ | ||
public function testTransformExpectsStringOrNumber($value) | ||
{ | ||
$this->setExpectedException('Symfony\Component\Form\Exception\UnexpectedTypeException'); | ||
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$this->transformer->transform($value); | ||
} | ||
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/** | ||
* @dataProvider invalidDataProvider | ||
*/ | ||
public function testReverseTransformExpectsString($value) | ||
{ | ||
$this->setExpectedException('Symfony\Component\Form\Exception\UnexpectedTypeException'); | ||
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$this->transformer->reverseTransform($value); | ||
} | ||
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public function invalidDataProvider() | ||
{ | ||
return array( | ||
array(true), | ||
array(false), | ||
array(new \stdClass), | ||
array(array()), | ||
); | ||
} | ||
} |
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