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ViewControllerFactory::__invoke()   A

↳ Parent: ViewControllerFactory

Complexity

Conditions 1
Paths 1

Size

Total Lines 6
Code Lines 3

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
dl 0
loc 6
rs 9.4285
c 1
b 0
f 0
cc 1
eloc 3
nc 1
nop 3
1 
<?php
2 
/**
3 
 * YAWIK
4 
 *
5 
 * @filesource
6 
 * @license MIT
7 
 * @copyright  2013 - 2016 Cross Solution <http://cross-solution.de>
8 
 */
9
10 
/** */
11 
namespace Cv\Factory\Controller;
12 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Cv\Controller\ViewController;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Interop\Container\ContainerInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Zend\ServiceManager\FactoryInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Zend\ServiceManager\ServiceLocatorInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * ${CARET}

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @author Mathias Gelhausen <[email protected]>

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * @todo write test 

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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class ViewControllerFactory implements FactoryInterface

            


            
                                                                                                            
                            
            
                                    
            
            

                
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{

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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    public function __invoke(ContainerInterface $container, $requestedName, array $options = null)

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                                                                        
                        

                            
                            
0 ignored issues

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            Unused Code
    
    
    
        introduced 
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The parameter $requestedName is not used and could be removed.
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
This check looks from parameters that have been defined for a function or method, but which
are not used in the method body.


                        

                                                    

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            Unused Code
    
    
    
        introduced 
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The parameter $options is not used and could be removed.
                                                                                                

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
This check looks from parameters that have been defined for a function or method, but which
are not used in the method body.


                        

                                                    

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    {

            


            
                                                                        
                            
            
                                    
            
            

                
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        $repository = $container->get('repositories')->get('Cv/Cv');

            


            
                                                                        
                            
            
                                    
            
            

                
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        return new ViewController($repository);

            


            
                                                                        
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    /**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * Create service

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param ServiceLocatorInterface $serviceLocator

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param string|null             $name

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @param string|null             $requestedName

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     *

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     * @return mixed

            


            
                                                                                                            
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    public function createService(ServiceLocatorInterface $serviceLocator, $name = null, $requestedName = null)

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $container = $serviceLocator->getServiceLocator();

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
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It seems like you code against a concrete implementation and not the interface Zend\ServiceManager\ServiceLocatorInterface as the method getServiceLocator() does only exist in the following implementations of said interface: Acl\Assertion\AssertionManager, Core\Mail\MailService, Core\Paginator\PaginatorService, Zend\Barcode\ObjectPluginManager, Zend\Barcode\RendererPluginManager, Zend\Cache\PatternPluginManager, Zend\Cache\Storage\AdapterPluginManager, Zend\Cache\Storage\PluginManager, Zend\Config\ReaderPluginManager, Zend\Config\WriterPluginManager, Zend\Feed\Reader\ExtensionPluginManager, Zend\Feed\Writer\ExtensionPluginManager, Zend\File\Transfer\Adapter\FilterPluginManager, Zend\File\Transfer\Adapter\ValidatorPluginManager, Zend\Filter\FilterPluginManager, Zend\Form\FormElementMan...lementManagerV2Polyfill, Zend\Form\FormElementMan...lementManagerV3Polyfill, Zend\Hydrator\HydratorPluginManager, Zend\I18n\Translator\LoaderPluginManager, Zend\InputFilter\InputFilterPluginManager, Zend\Log\FilterPluginManager, Zend\Log\FormatterPluginManager, Zend\Log\ProcessorPluginManager, Zend\Log\WriterPluginManager, Zend\Log\Writer\FilterPluginManager, Zend\Log\Writer\FormatterPluginManager, Zend\Mail\Protocol\SmtpPluginManager, Zend\Mvc\Controller\ControllerManager, Zend\Mvc\Controller\PluginManager, Zend\Mvc\Router\RoutePluginManager, Zend\Paginator\AdapterPluginManager, Zend\Paginator\ScrollingStylePluginManager, Zend\Serializer\AdapterPluginManager, Zend\ServiceManager\AbstractPluginManager, Zend\Tag\Cloud\DecoratorPluginManager, Zend\Text\Table\DecoratorManager, Zend\Validator\ValidatorPluginManager, Zend\View\HelperPluginManager, Zend\View\Helper\Navigation\PluginManager.
                                                                                                                                                                                                        

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
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. 

  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.'
            );
        }

    }
}

    

    

    3. 




 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();
}

    

    

    2. 



                        

                                                    

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        return $this($container, $requestedName ?: ViewController::class);

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    }

            


            
                                                                                                            
                            
            
                                    
            
            

                
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}