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GroupByBuilder   A
last analyzed

↳ Parent: Project

Complexity

Total Complexity 1

Size/Duplication

Total Lines 12
Duplicated Lines 0 %

Coupling/Cohesion

Components 0
Dependencies 2

Test Coverage

Coverage 100%

Importance

Changes 0
Metric Value
wmc 1
lcom 0
cbo 2
dl 0
loc 12
ccs 3
cts 3
cp 1
rs 10
c 0
b 0
f 0

1 Method

Rating   Name   Duplication   Size   Complexity  
A apply() 0 4 1
1 
<?php
2 
/**
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 * This file is part of Hydrogen package.
4 
 *
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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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 */
8 
declare(strict_types=1);
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namespace RDS\Hydrogen\Processor\DatabaseProcessor;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use Doctrine\ORM\QueryBuilder;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use RDS\Hydrogen\Criteria\GroupBy;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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use RDS\Hydrogen\Criteria\CriterionInterface;

            


            
                                                                                                            
                            
            
                                    
            
            

                
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/**

            


            
                                                                                                            
                            
            
                                    
            
            

                
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 * Class GroupByBuilder

            


            
                                                                                                            
                                                                
            
                                    
            
            

                
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 */

            


            
                                                                        
                            
            
                                    
            
            

                
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class GroupByBuilder extends Builder

            


            
                                                                        
                            
            
                                    
            
            

                
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{

            


            
                                                                        
                            
            
                                    
            
            

                
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    /**

            


            
                                                                        
                            
            
                                    
            
            

                
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     * @param QueryBuilder $builder

            


            
                                                                        
                            
            
                                    
            
            

                
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     * @param CriterionInterface|GroupBy $groupBy

            


            
                                                                        
                            
            
                                    
            
            

                
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     * @return \Generator

            


            
                                                                        
                            
            
                                    
            
            

                
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     */

            


            
                                                                                                            
                            
            
                                    
            
            

                
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                             2                         
                
                
                
    public function apply($builder, CriterionInterface $groupBy): ?iterable

            


            
                                                                                                            
                            
            
                                    
            
            

                
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    {

            


            
                                                                                                            
                            
            
                                    
            
            

                
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        $builder->addGroupBy(yield $groupBy->getField());

            


                            

                    
                        
                    
                    
                    
                    
                                                                                                    
                        

                            
                            
0 ignored issues

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            Bug
    
    
    
        introduced 
                            by 
            

        

        

            
        

        

            

                

                    
                
                
            


        

    

    

        
                        

                            
                                
                            
                        

                                        
It seems like you code against a concrete implementation and not the interface RDS\Hydrogen\Criteria\CriterionInterface as the method getField() does only exist in the following implementations of said interface: RDS\Hydrogen\Criteria\GroupBy, RDS\Hydrogen\Criteria\Having, RDS\Hydrogen\Criteria\OrderBy, RDS\Hydrogen\Criteria\Selection, RDS\Hydrogen\Criteria\Where.
                                                                                                                                                                                                        

                    
                                            

                            

                            

                                
                                    
                                
                            


                            
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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