RelationProcessor - Code Metrics - Inspection of "- Remove processors duplications" - rambler-digital-solutions/hydrogen - Measure and Improve Code Quality continuously with Scrutinizer

Test Failed

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by Kirill

created 2018-05-28 16:25 UTC

RelationProcessor A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	71
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Importance

Changes

Metric	Value
wmc	7
lcom	1
cbo	3
dl	0
loc	71
rs	10
c	0
b	0
f	0

4 Methods

Rating	Name	Size	Complexity
A	apply()	21	3
A	hasAlias()	4	1
A	fetchAlias()	8	2
A	createAlias()	4	1

<?php
/**
 * This file is part of Hydrogen package.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
declare(strict_types=1);

namespace RDS\Hydrogen\Processor\DatabaseProcessor;

use Doctrine\ORM\QueryBuilder;
use RDS\Hydrogen\Criteria\CriterionInterface;
use RDS\Hydrogen\Criteria\Relation;

/**
 * Class RelationProcessor
 */
class RelationProcessor extends CriterionProcessor
{
    /**
     * @var int
     */
    private static $relationId = 0;

    /**
     * @var array|string[]
     */
    private $relations = [];

    /**
     * @param QueryBuilder $builder
     * @param CriterionInterface|Relation $with
     * @return QueryBuilder
     */
    public function apply(QueryBuilder $builder, CriterionInterface $with): QueryBuilder
    {
        $alias = $this->alias;

        foreach ($with->getRelation()->split() as $relation) {
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.
    }
}
            $parent     = $relation->withAlias($alias);
            $exists     = $this->hasAlias($parent);
            $childAlias = $this->fetchAlias($parent, $relation->getName());

            if (! $exists) {
                $builder->leftJoin($parent, $childAlias);
                $builder->addSelect($childAlias);
            }

            $alias = $childAlias;
        }

        $this->processor->apply($builder, $with->getQuery(), $alias);
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.
    }
}

        return $builder;
    }

    /**
     * @param string $parent
     * @return bool
     */
    private function hasAlias(string $parent): bool
    {
        return \array_key_exists($parent, $this->relations);
    }

    /**
     * @param string $parent
     * @param string $class
     * @return string
     */
    private function fetchAlias(string $parent, string $class): string
    {
        if (! $this->hasAlias($parent)) {
            $this->relations[$parent] = $this->createAlias($class);
        }

        return $this->relations[$parent];
    }

    /**
     * @param string $class
     * @return string
     */
    private function createAlias(string $class): string
    {
        return 'ref_' . \snake_case(\class_basename($class)) . '_' . ++self::$relationId;
    }
}


Push — master ( e630f8...594d62 )

RelationProcessor A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

4 Methods

Available Fixes

Available Fixes

1			<?php
2			/**
3			* This file is part of Hydrogen package.
4			*
5			* For the full copyright and license information, please view the LICENSE
6			* file that was distributed with this source code.
7			*/
8			declare(strict_types=1);
9
10			namespace RDS\Hydrogen\Processor\DatabaseProcessor;
11
12			use Doctrine\ORM\QueryBuilder;
13			use RDS\Hydrogen\Criteria\CriterionInterface;
14			use RDS\Hydrogen\Criteria\Relation;
15
16			/**
17			* Class RelationProcessor
18			*/
19			class RelationProcessor extends CriterionProcessor
20			{
21			/**
22			* @var int
23			*/
24			private static $relationId = 0;
25
26			/**
27			* @var array\|string[]
28			*/
29			private $relations = [];
30
31			/**
32			* @param QueryBuilder $builder
33			* @param CriterionInterface\|Relation $with
34			* @return QueryBuilder
35			*/
36			public function apply(QueryBuilder $builder, CriterionInterface $with): QueryBuilder
37			{
38			$alias = $this->alias;
39
40			foreach ($with->getRelation()->split() as $relation) {
			0 ignored issues – show Bug introduced 2018-05-24 14:00 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `RDS\Hydrogen\Criteria\CriterionInterface` as the method `getRelation()` does only exist in the following implementations of said interface: `RDS\Hydrogen\Criteria\Relation`. 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 Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } 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. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
41			$parent = $relation->withAlias($alias);
42			$exists = $this->hasAlias($parent);
43			$childAlias = $this->fetchAlias($parent, $relation->getName());
44
45			if (! $exists) {
46			$builder->leftJoin($parent, $childAlias);
47			$builder->addSelect($childAlias);
48			}
49
50			$alias = $childAlias;
51			}
52
53			$this->processor->apply($builder, $with->getQuery(), $alias);
			0 ignored issues – show Bug introduced 2018-05-24 14:00 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `RDS\Hydrogen\Criteria\CriterionInterface` as the method `getQuery()` does only exist in the following implementations of said interface: `RDS\Hydrogen\Criteria\Group`, `RDS\Hydrogen\Criteria\Relation`. 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 Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } 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. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
54
55			return $builder;
56			}
57
58			/**
59			* @param string $parent
60			* @return bool
61			*/
62			private function hasAlias(string $parent): bool
63			{
64			return \array_key_exists($parent, $this->relations);
65			}
66
67			/**
68			* @param string $parent
69			* @param string $class
70			* @return string
71			*/
72			private function fetchAlias(string $parent, string $class): string
73			{
74			if (! $this->hasAlias($parent)) {
75			$this->relations[$parent] = $this->createAlias($class);
76			}
77
78			return $this->relations[$parent];
79			}
80
81			/**
82			* @param string $class
83			* @return string
84			*/
85			private function createAlias(string $class): string
86			{
87			return 'ref_' . \snake_case(\class_basename($class)) . '_' . ++self::$relationId;
88			}
89			}
90

rambler-digital-solutions / hydrogen

Push — master ( e630f8...594d62 )

RelationProcessor A

Complexity

Size/Duplication

Coupling/Cohesion

Importance

4 Methods

Available Fixes

Available Fixes

Duplication Side-by-Side

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