DoctrineReader - Code Metrics - Inspection of "doctrine-reader: add querybuilder support" - portphp/doctrine - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#12)

by Elan

created 2019-02-03 01:09 UTC

DoctrineReader A

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	112
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Test Coverage

Coverage

93.75%

Importance

Changes

Metric	Value
wmc	12
lcom	1
cbo	3
dl	0
loc	112
ccs	30
cts	32
cp	0.9375
rs	10
c	0
b	0
f	0

10 Methods

Rating	Name	Size	Complexity
A	__construct()	5	1
A	setQueryBuilder()	6	1
A	getQueryBuilder()	9	2
A	getFields()	5	1
A	current()	4	1
A	next()	4	1
A	key()	4	1
A	valid()	4	1
A	rewind()	10	2
A	count()	6	1

<?php

namespace Port\Doctrine;

use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\ORM\Internal\Hydration\IterableResult;
use Doctrine\ORM\Query;
use Doctrine\ORM\QueryBuilder;
use Port\Reader\CountableReader;

/**
 * Reads entities through the Doctrine ORM
 *
 * @author David de Boer <[email protected]>
 */
class DoctrineReader implements CountableReader
{
    /**
     * @var ObjectManager
     */
    protected $objectManager;

    /**
     * @var string
     */
    protected $objectName;

    /**
     * @var IterableResult
     */
    protected $iterableResult;

    /** @var QueryBuilder */
    protected $queryBuilder;

    /**
     * @param ObjectManager $objectManager
     * @param string $objectName e.g. YourBundle:YourEntity
     */
    public function __construct(ObjectManager $objectManager, $objectName)
    {
        $this->objectManager = $objectManager;
        $this->objectName = $objectName;
    }

    public function setQueryBuilder(QueryBuilder $queryBuilder)
    {
        $this->queryBuilder = $queryBuilder;

        return $this;
    }

    public function getQueryBuilder()
    {
        if ($this->queryBuilder === null) {
            $this->queryBuilder = $this->objectManager->createQueryBuilder()
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.', $user->getDisplayName()));
        // do something.
    }
}
                ->from($this->objectName, 'o');
        }

        return clone $this->queryBuilder;
    }

    /**
     * {@inheritdoc}
     */
    public function getFields()
    {
        return $this->objectManager->getClassMetadata($this->objectName)
            ->getFieldNames();
    }

    /**
     * {@inheritdoc}
     */
    public function current()
    {
        return current($this->iterableResult->current());
    }

    /**
     * {@inheritdoc}
     */
    public function next()
    {
        $this->iterableResult->next();
    }

    /**
     * {@inheritdoc}
     */
    public function key()
    {
        return $this->iterableResult->key();
    }

    /**
     * {@inheritdoc}
     */
    public function valid()
    {
        return $this->iterableResult->valid();
    }

    /**
     * {@inheritdoc}
     */
    public function rewind()
    {
        if (!$this->iterableResult) {
            $query = $this->getQueryBuilder()->select('o')->getQuery();

            $this->iterableResult = $query->iterate([], Query::HYDRATE_ARRAY);
        }

        $this->iterableResult->rewind();
    }

    /**
     * {@inheritdoc}
     */
    public function count()
    {
        $query = $this->getQueryBuilder()->select('count(o)')->getQuery();

        return $query->getSingleScalarResult();
    }
}


1		<?php
2
3		namespace Port\Doctrine;
4
5		use Doctrine\Common\Persistence\ObjectManager;
6		use Doctrine\ORM\Internal\Hydration\IterableResult;
7		use Doctrine\ORM\Query;
8		use Doctrine\ORM\QueryBuilder;
9		use Port\Reader\CountableReader;
10
11		/**
12		* Reads entities through the Doctrine ORM
13		*
14		* @author David de Boer <[email protected]>
15		*/
16		class DoctrineReader implements CountableReader
17		{
18		/**
19		* @var ObjectManager
20		*/
21		protected $objectManager;
22
23		/**
24		* @var string
25		*/
26		protected $objectName;
27
28		/**
29		* @var IterableResult
30		*/
31		protected $iterableResult;
32
33		/** @var QueryBuilder */
34		protected $queryBuilder;
35
36	3	/**
37		* @param ObjectManager $objectManager
38	3	* @param string $objectName e.g. YourBundle:YourEntity
39	3	*/
40	3	public function __construct(ObjectManager $objectManager, $objectName)
41		{
42		$this->objectManager = $objectManager;
43		$this->objectName = $objectName;
44		}
45	1
46		public function setQueryBuilder(QueryBuilder $queryBuilder)
47	1	{
48	1	$this->queryBuilder = $queryBuilder;
49
50		return $this;
51		}
52
53		public function getQueryBuilder()
54	1	{
55		if ($this->queryBuilder === null) {
56	1	$this->queryBuilder = $this->objectManager->createQueryBuilder()
		0 ignored issues – show Bug introduced 2019-02-03 01:13 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `Doctrine\Common\Persistence\ObjectManager` as the method `createQueryBuilder()` does only exist in the following implementations of said interface: `Doctrine\ODM\MongoDB\DocumentManager`, `Doctrine\ORM\Decorator\EntityManagerDecorator`, `Doctrine\ORM\EntityManager`. 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...
57		->from($this->objectName, 'o');
58		}
59
60		return clone $this->queryBuilder;
61		}
62	1
63		/**
64	1	* {@inheritdoc}
65	1	*/
66		public function getFields()
67		{
68		return $this->objectManager->getClassMetadata($this->objectName)
69		->getFieldNames();
70		}
71
72		/**
73		* {@inheritdoc}
74		*/
75		public function current()
76		{
77		return current($this->iterableResult->current());
78	1	}
79
80	1	/**
81		* {@inheritdoc}
82		*/
83		public function next()
84		{
85		$this->iterableResult->next();
86	1	}
87
88	1	/**
89		* {@inheritdoc}
90	1	*/
91	1	public function key()
92	1	{
93	1	return $this->iterableResult->key();
94		}
95	1
96	1	/**
97		* {@inheritdoc}
98	1	*/
99	1	public function valid()
100		{
101		return $this->iterableResult->valid();
102		}
103
104	1	/**
105		* {@inheritdoc}
106	1	*/
107	1	public function rewind()
108	1	{
109	1	if (!$this->iterableResult) {
110		$query = $this->getQueryBuilder()->select('o')->getQuery();
111	1
112		$this->iterableResult = $query->iterate([], Query::HYDRATE_ARRAY);
113		}
114
115		$this->iterableResult->rewind();
116		}
117
118		/**
119		* {@inheritdoc}
120		*/
121		public function count()
122		{
123		$query = $this->getQueryBuilder()->select('count(o)')->getQuery();
124
125		return $query->getSingleScalarResult();
126		}
127		}
128

portphp / doctrine

Pull Request — master (#12)

DoctrineReader A

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

10 Methods

Available Fixes

Duplication Side-by-Side

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