SimplePropertyParser::cloneValue() - Code Metrics - Inspection of "Refactored code" - mcustiel/php-simple-request - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — develop (22789e)

by Mariano

created 2016-07-13 12:19 UTC

SimplePropertyParser::cloneValue() A

↳ Parent: SimplePropertyParser

Complexity

Conditions	2
Paths	2

Size

Total Lines	7
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
c	1
b	0
f	0
dl	0
loc	7
rs	9.4285
cc	2
eloc	4
nc	2
nop	1

<?php
namespace Mcustiel\SimpleRequest\Strategies\Properties;

use Mcustiel\SimpleRequest\Strategies\Properties\PropertyParser;
use Mcustiel\SimpleRequest\Exception\InvalidValueException;

class SimplePropertyParser implements PropertyParser
{
    /**
     *
     * @var \Mcustiel\SimpleRequest\Interfaces\ValidatorInterface[]
     */
    protected $validators;
    /**
     *
     * @var \Mcustiel\SimpleRequest\Interfaces\FilterInterface[]
     */
    protected $filters;
    /**
     *
     * @var string
     */
    protected $name;

    public function __construct($name)
    {
        $this->name = $name;
    }

    public function setFilters(array $filters)
    {
        $this->filters = $filters;
        return $this;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }

    public function setValidators(array $validators)
    {
        $this->validators = $validators;
        return $this;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }

    public function getName()
    {
        return $this->name;
    }

    /**
     * Filters and validates a value. And return the filtered value.
     * It throws an exception if the value is not valid.
     *
     * @param mixed $value
/**
 * @param array $germany
 * @param array $island
 * @param array $italy
 */
function finale($germany, $island) {
    return "2:1";
}
     * @return mixed
     *
     * @throws \Mcustiel\SimpleRequest\Exception\InvalidValueException
     */
    public function parse($propertyValue)
    {
        $return = $this->cloneValue($propertyValue);
        $return = $this->runFilters($return);
        $this->validate($return);

        return $return;
    }

    /**
     * Returns a copy of the received value.
     *
     * @param mixed $value
     * @return mixed
     */
    protected function cloneValue($value)
    {
        if (is_object($value)) {
            return clone $value;
        }
        return $value;
    }

    /**
     * Checks the value against all validators.
     *
     * @param mixed $value
     *
     * @throws \Mcustiel\SimpleRequest\Exception\InvalidValueException
     */
    protected function validate($value)
    {
        foreach ($this->validators as $validator) {
            if (!$validator->validate($value)) {
                throw new InvalidValueException(
                    "Field {$this->name}, was set with invalid value: " . var_export($value, true)
                );
            }
        }
    }

    /**
     * Run all the filters on the value.
     *
     * @param mixed $value
     *
     * @return mixed
     */
    protected function runFilters($value)
    {
        $return = $value;
        if ($return !== null) {
            foreach ($this->filters as $filter) {
                $return = $filter->filter($return);
            }
        }

        return $return;
    }
}


1			<?php
2			namespace Mcustiel\SimpleRequest\Strategies\Properties;
3
4			use Mcustiel\SimpleRequest\Strategies\Properties\PropertyParser;
5			use Mcustiel\SimpleRequest\Exception\InvalidValueException;
6
7			class SimplePropertyParser implements PropertyParser
8			{
9			/**
10			*
11			* @var \Mcustiel\SimpleRequest\Interfaces\ValidatorInterface[]
12			*/
13			protected $validators;
14			/**
15			*
16			* @var \Mcustiel\SimpleRequest\Interfaces\FilterInterface[]
17			*/
18			protected $filters;
19			/**
20			*
21			* @var string
22			*/
23			protected $name;
24
25			public function __construct($name)
26			{
27			$this->name = $name;
28			}
29
30			public function setFilters(array $filters)
31			{
32			$this->filters = $filters;
33			return $this;
			0 ignored issues – show Bug Best Practice introduced 2016-07-13 12:27 UTC by Report Bug Copy Issue Report The return type of `return $this;` (`Mcustiel\SimpleRequest\S...es\SimplePropertyParser`) is incompatible with the return type declared by the interface `Mcustiel\SimpleRequest\S...pertyParser::setFilters` of type `Mcustiel\SimpleRequest\PropertyParser`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
34			}
35
36			public function setValidators(array $validators)
37			{
38			$this->validators = $validators;
39			return $this;
			0 ignored issues – show Bug Best Practice introduced 2016-07-13 12:27 UTC by Report Bug Copy Issue Report The return type of `return $this;` (`Mcustiel\SimpleRequest\S...es\SimplePropertyParser`) is incompatible with the return type declared by the interface `Mcustiel\SimpleRequest\S...tyParser::setValidators` of type `Mcustiel\SimpleRequest\PropertyParser`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
40			}
41
42			public function getName()
43			{
44			return $this->name;
45			}
46
47			/**
48			* Filters and validates a value. And return the filtered value.
49			* It throws an exception if the value is not valid.
50			*
51			* @param mixed $value
			0 ignored issues – show Bug introduced 2016-07-13 12:27 UTC by Report Bug Copy Issue Report There is no parameter named `$value`. Was it maybe removed? This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. Consider the following example. The parameter `$italy` is not defined by the method `finale(...)`. /** * @param array $germany * @param array $island * @param array $italy */ function finale($germany, $island) { return "2:1"; } The most likely cause is that the parameter was removed, but the annotation was not. Loading history...
52			* @return mixed
53			*
54			* @throws \Mcustiel\SimpleRequest\Exception\InvalidValueException
55			*/
56			public function parse($propertyValue)
57			{
58			$return = $this->cloneValue($propertyValue);
59			$return = $this->runFilters($return);
60			$this->validate($return);
61
62			return $return;
63			}
64
65			/**
66			* Returns a copy of the received value.
67			*
68			* @param mixed $value
69			* @return mixed
70			*/
71			protected function cloneValue($value)
72			{
73			if (is_object($value)) {
74			return clone $value;
75			}
76			return $value;
77			}
78
79			/**
80			* Checks the value against all validators.
81			*
82			* @param mixed $value
83			*
84			* @throws \Mcustiel\SimpleRequest\Exception\InvalidValueException
85			*/
86			protected function validate($value)
87			{
88			foreach ($this->validators as $validator) {
89			if (!$validator->validate($value)) {
90			throw new InvalidValueException(
91			"Field {$this->name}, was set with invalid value: " . var_export($value, true)
92			);
93			}
94			}
95			}
96
97			/**
98			* Run all the filters on the value.
99			*
100			* @param mixed $value
101			*
102			* @return mixed
103			*/
104			protected function runFilters($value)
105			{
106			$return = $value;
107			if ($return !== null) {
108			foreach ($this->filters as $filter) {
109			$return = $filter->filter($return);
110			}
111			}
112
113			return $return;
114			}
115			}
116

mcustiel / php-simple-request

Branch — develop (22789e)

SimplePropertyParser::cloneValue() A

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