Completed
Push — master ( d07a45...da6ba5 )
by
unknown
02:06
created

src/Loaders/AttributeGroupNameLoader.php (1 issue)

Upgrade to new PHP Analysis Engine

These results are based on our legacy PHP analysis, consider migrating to our new PHP analysis engine instead. Learn more

1
<?php
2
3
/**
4
 * TechDivision\Import\Loaders\AttributeGroupNameLoader
5
 *
6
 * NOTICE OF LICENSE
7
 *
8
 * This source file is subject to the Open Software License (OSL 3.0)
9
 * that is available through the world-wide-web at this URL:
10
 * http://opensource.org/licenses/osl-3.0.php
11
 *
12
 * PHP version 5
13
 *
14
 * @author    Tim Wagner <[email protected]>
15
 * @copyright 2019 TechDivision GmbH <[email protected]>
16
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
17
 * @link      https://github.com/techdivision/import
18
 * @link      http://www.techdivision.com
19
 */
20
21
namespace TechDivision\Import\Loaders;
22
23
use TechDivision\Import\Utils\MemberNames;
24
use TechDivision\Import\Services\ImportProcessorInterface;
25
26
/**
27
 * Loader for attribute group names.
28
 *
29
 * @author    Tim Wagner <[email protected]>
30
 * @copyright 2019 TechDivision GmbH <[email protected]>
31
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
32
 * @link      https://github.com/techdivision/import
33
 * @link      http://www.techdivision.com
34
 */
35
class AttributeGroupNameLoader implements LoaderInterface
36
{
37
38
    /**
39
     * The attribute group names.
40
     *
41
     * @var array
42
     */
43
    protected $attributeGroupNames = array();
44
45
    /**
46
     * Construct that initializes the iterator with the import processor instance.
47
     *
48
     * @param \TechDivision\Import\Services\ImportProcessorInterface $importProcessor The import processor instance
49
     */
50
    public function __construct(ImportProcessorInterface $importProcessor)
51
    {
52
53
        // load the entity types
54
        $entityTypes = $importProcessor->getEavEntityTypes();
55
56
        // prepare the array with the attribute sets
57
        foreach ($entityTypes as $entityType) {
58
            // load the attribute sets for the entity type
59
            $attributeSets = $importProcessor->getEavAttributeSetsByEntityTypeId($entityType[MemberNames::ENTITY_TYPE_ID]);
60
            // load the attribute sets
61
            foreach ($attributeSets as $attributeSet) {
62
                // load the attribute groups for the attribute set
63
                $attributeGroups = $importProcessor->getEavAttributeGroupsByAttributeSetId($attributeSet[MemberNames::ATTRIBUTE_SET_ID]);
64
                // assemble the array with the attribute group names
65
                foreach ($attributeGroups as $attributeGroup) {
66
                    $this->attributeGroupNames[$entityType[MemberNames::ENTITY_TYPE_CODE]][$attributeSet[MemberNames::ATTRIBUTE_SET_NAME]][] = $attributeGroup[MemberNames::ATTRIBUTE_GROUP_NAME];
67
                }
68
            }
69
        }
70
    }
71
72
    /**
73
     * Loads and returns the array with the attribute group names.
74
     *
75
     * @return \ArrayAccess The array with the data
76
     */
77
    public function load()
78
    {
79
        return $this->attributeGroupNames;
0 ignored issues
show
Bug Best Practice introduced by
The return type of return $this->attributeGroupNames; (array) is incompatible with the return type declared by the interface TechDivision\Import\Loaders\LoaderInterface::load of type ArrayAccess.

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...
80
    }
81
}
82