Completed
Pull Request — 3.x (#5937)
by Peter
04:57
created

DataTransformerResolver::resolve()   B

Complexity

Conditions 7
Paths 6

Size

Total Lines 43

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 43
rs 8.2986
c 0
b 0
f 0
cc 7
nc 6
nop 2
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<?php
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declare(strict_types=1);
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/*
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 * This file is part of the Sonata Project package.
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 *
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 * (c) Thomas Rabaix <[email protected]>
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace Sonata\AdminBundle\Form;
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use Sonata\AdminBundle\Admin\FieldDescriptionInterface;
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use Sonata\AdminBundle\Form\DataTransformer\ModelToIdTransformer;
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use Sonata\AdminBundle\Model\ModelManagerInterface;
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use Sonata\AdminBundle\Templating\TemplateRegistry;
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use Symfony\Component\Form\DataTransformerInterface;
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use Symfony\Component\Form\Extension\Core\DataTransformer\DateTimeToStringTransformer;
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/**
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 * @author Peter Gribanov <[email protected]>
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 */
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final class DataTransformerResolver implements DataTransformerResolverInterface
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{
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    /**
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     * @var array<string, DataTransformerInterface>
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     */
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    private $globalCustomTransformers = [];
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    /**
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     * @param array<string, DataTransformerInterface> $customGlobalTransformers
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     */
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    public function __construct(array $customGlobalTransformers = [])
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    {
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        foreach ($customGlobalTransformers as $fieldType => $dataTransformer) {
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            $this->addCustomGlobalTransformer($fieldType, $dataTransformer);
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        }
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    }
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    public function addCustomGlobalTransformer(string $fieldType, DataTransformerInterface $dataTransformer): void
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    {
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        $this->globalCustomTransformers[$fieldType] = $dataTransformer;
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    }
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    public function resolve(
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        FieldDescriptionInterface $fieldDescription,
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        ModelManagerInterface $modelManager
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    ): ?DataTransformerInterface {
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        $dataTransformer = $fieldDescription->getOption('data_transformer');
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        // allow override predefined transformers for 'date', 'boolean' and 'choice' field types
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        if ($dataTransformer instanceof DataTransformerInterface) {
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            return $dataTransformer;
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        }
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        $fieldType = (string) $fieldDescription->getType();
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        // allow override predefined transformers on a global level
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        if (\array_key_exists($fieldType, $this->globalCustomTransformers)) {
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            return $this->globalCustomTransformers[$fieldType];
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        }
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        // Handle date type has setter expect a DateTime object
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        if (TemplateRegistry::TYPE_DATE === $fieldType) {
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            $this->globalCustomTransformers[$fieldType] = new DateTimeToStringTransformer(
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                null,
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                $this->getOutputTimezone($fieldDescription),
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                'Y-m-d'
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            );
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            return $this->globalCustomTransformers[$fieldType];
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        }
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        // Handle entity choice association type, transforming the value into entity
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        if (TemplateRegistry::TYPE_CHOICE === $fieldType) {
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            $className = $fieldDescription->getOption('class');
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            if (null !== $className &&
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                // NEXT_MAJOR: Replace this call with "$className === $fieldDescription->getTargetModel()".
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                $this->hasFieldDescriptionAssociationWithClass($fieldDescription, $className)
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            ) {
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                return new ModelToIdTransformer($modelManager, $className);
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            }
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        }
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        return null;
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    }
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    private function getOutputTimezone(FieldDescriptionInterface $fieldDescription): ?string
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    {
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        $outputTimezone = $fieldDescription->getOption('timezone');
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        if (!$outputTimezone) {
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            return null;
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        }
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        if ($outputTimezone instanceof \DateTimeZone) {
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            return $outputTimezone->getName();
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        }
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        return $outputTimezone;
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    }
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    private function hasFieldDescriptionAssociationWithClass(
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        FieldDescriptionInterface $fieldDescription,
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        string $class
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    ): bool {
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        return (
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            method_exists($fieldDescription, 'getTargetModel') && $class === $fieldDescription->getTargetModel()
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface Sonata\AdminBundle\Admin\FieldDescriptionInterface as the method getTargetModel() does only exist in the following implementations of said interface: Sonata\AdminBundle\Tests...\Admin\FieldDescription, Sonata\AdminBundle\Tests...\Admin\FieldDescription.

Let’s take a look at an example:

interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}

In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.

Available Fixes

  1. Change the type-hint for the parameter:

    class AuthSystem
    {
        public function authenticate(MyUser $user) { /* ... */ }
    }
    
  2. Add an additional type-check:

    class AuthSystem
    {
        public function authenticate(User $user)
        {
            if ($user instanceof MyUser) {
                $this->logger->info(/** ... */);
            }
    
            // or alternatively
            if ( ! $user instanceof MyUser) {
                throw new \LogicException(
                    '$user must be an instance of MyUser, '
                   .'other instances are not supported.'
                );
            }
    
        }
    }
    
Note: PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
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        ) || $class === $fieldDescription->getTargetEntity();
0 ignored issues
show
Deprecated Code introduced by
The method Sonata\AdminBundle\Admin...face::getTargetEntity() has been deprecated with message: since sonata-project/admin-bundle 3.69. Use `getTargetModel()` instead.

This method has been deprecated. The supplier of the class has supplied an explanatory message.

The explanatory message should give you some clue as to whether and when the method will be removed from the class and what other method or class to use instead.

Loading history...
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    }
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}
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