Completed
Pull Request — master (#74)
by Tim
03:07 queued 01:31
created

UrlKeyAndPathObserver   A

Complexity

Total Complexity 28

Size/Duplication

Total Lines 257
Duplicated Lines 0 %

Coupling/Cohesion

Components 1
Dependencies 7

Importance

Changes 0
Metric Value
wmc 28
lcom 1
cbo 7
dl 0
loc 257
rs 10
c 0
b 0
f 0

12 Methods

Rating   Name   Duplication   Size   Complexity  
A __construct() 0 11 1
D process() 0 91 16
A getPkMemberName() 0 4 1
A getCategoryBunchProcessor() 0 4 1
A getUrlKeyUtil() 0 4 1
A getCategoryByPath() 0 4 1
A getCategoryByPkAndStoreId() 0 4 1
A setIds() 0 4 2
A setLastEntityId() 0 4 1
A getPrimaryKey() 0 4 1
A loadUrlKey() 0 4 1
A makeUnique() 0 4 1
1
<?php
2
3
/**
4
 * TechDivision\Import\Category\Observers\UrlKeyAndPathObserver
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-category
18
 * @link      http://www.techdivision.com
19
 */
20
21
namespace TechDivision\Import\Category\Observers;
22
23
use Zend\Filter\FilterInterface;
24
use TechDivision\Import\Category\Utils\ColumnKeys;
25
use TechDivision\Import\Category\Utils\MemberNames;
26
use TechDivision\Import\Utils\StoreViewCodes;
27
use TechDivision\Import\Utils\UrlKeyUtilInterface;
28
use TechDivision\Import\Utils\Filter\UrlKeyFilterTrait;
29
use TechDivision\Import\Subjects\UrlKeyAwareSubjectInterface;
30
use TechDivision\Import\Category\Services\CategoryBunchProcessorInterface;
31
use TechDivision\Import\Category\Utils\ConfigurationKeys;
32
33
/**
34
 * Observer that extracts the URL key/path from the category path
35
 * and adds them as two new columns with the their values.
36
 *
37
 * @author    Tim Wagner <[email protected]>
38
 * @copyright 2019 TechDivision GmbH <[email protected]>
39
 * @license   http://opensource.org/licenses/osl-3.0.php Open Software License (OSL 3.0)
40
 * @link      https://github.com/techdivision/import-category
41
 * @link      http://www.techdivision.com
42
 */
43
class UrlKeyAndPathObserver extends AbstractCategoryImportObserver
44
{
45
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    /**
47
     * The trait that provides string => URL key conversion functionality.
48
     *
49
     * @var \TechDivision\Import\Utils\Filter\UrlKeyFilterTrait
50
     */
51
    use UrlKeyFilterTrait;
52
53
    /**
54
     * The URL key utility instance.
55
     *
56
     * @var \TechDivision\Import\Utils\UrlKeyUtilInterface
57
     */
58
    protected $urlKeyUtil;
59
60
    /**
61
     * The category bunch processor instance.
62
     *
63
     * @var \TechDivision\Import\Category\Services\CategoryBunchProcessorInterface
64
     */
65
    protected $categoryBunchProcessor;
66
67
    /**
68
     * Initialize the observer with the passed product bunch processor instance.
69
     *
70
     * @param \TechDivision\Import\Category\Services\CategoryBunchProcessorInterface $categoryBunchProcessor  The category bunch processor instance
71
     * @param \Zend\Filter\FilterInterface                                           $convertLiteralUrlFilter The URL filter instance
72
     * @param \TechDivision\Import\Utils\UrlKeyUtilInterface                         $urlKeyUtil              The URL key utility instance
73
     */
74
    public function __construct(
75
        CategoryBunchProcessorInterface $categoryBunchProcessor,
76
        FilterInterface $convertLiteralUrlFilter,
77
        UrlKeyUtilInterface $urlKeyUtil
78
    ) {
79
80
        // set the processor and the URL filter instance
81
        $this->categoryBunchProcessor = $categoryBunchProcessor;
82
        $this->convertLiteralUrlFilter = $convertLiteralUrlFilter;
83
        $this->urlKeyUtil = $urlKeyUtil;
84
    }
85
86
    /**
87
     * Process the observer's business logic.
88
     *
89
     * @return void
90
     */
91
    protected function process()
92
    {
93
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        // initialize the URL key and the category
95
        $urlKey = null;
96
        $category = array();
97
98
        // prepare the store view code
99
        $this->prepareStoreViewCode();
100
101
        // set the entity ID for the category with the passed path
102
        try {
103
            $this->setIds($category = $this->getCategoryByPath($path = $this->getValue(ColumnKeys::PATH)));
104
        } catch (\Exception $e) {
105
            $this->setIds(array());
106
        }
107
108
        // query whether or not the URL key column has a value
109
        if ($this->hasValue(ColumnKeys::URL_KEY)) {
110
            $urlKey = $this->getValue(ColumnKeys::URL_KEY);
111
        } else {
112
            // query whether or not the existing category `url_key` should be re-created from the category name
113
            if ($category && !$this->getSubject()->getConfiguration()->getParam(ConfigurationKeys::UPDATE_URL_KEY_FROM_NAME, true)) {
0 ignored issues
show
Bug Best Practice introduced by
The expression $category of type array is implicitly converted to a boolean; are you sure this is intended? If so, consider using ! empty($expr) instead to make it clear that you intend to check for an array without elements.

This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.

Consider making the comparison explicit by using empty(..) or ! empty(...) instead.

Loading history...
114
                // if the category already exists and NO re-creation from the category name has to
115
                // be done, load the original `url_key`from the category and use that to proceed
116
                $urlKey = $this->loadUrlKey($this->getSubject(), $this->getPrimaryKey());
0 ignored issues
show
Documentation introduced by
$this->getSubject() is of type object<TechDivision\Impo...jects\SubjectInterface>, but the function expects a object<TechDivision\Impo...yAwareSubjectInterface>.

It seems like the type of the argument is not accepted by the function/method which you are calling.

In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.

We suggest to add an explicit type cast like in the following example:

function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
Loading history...
117
            }
118
119
            // try to load the value from column `name` if URL key is still
120
            // empty, because we need it to process the the rewrites later on
121
            if ($urlKey === null || $urlKey === '' && $this->hasValue(ColumnKeys::NAME)) {
122
                $urlKey = $this->convertNameToUrlKey($this->getValue(ColumnKeys::NAME));
123
            }
124
        }
125
126
        // stop processing, if no URL key is available
127
        if ($urlKey === null || $urlKey === '') {
128
            // throw an exception, that the URL key can not be
129
            // initialized and we're in the default store view
130
            if ($this->getStoreViewCode(StoreViewCodes::ADMIN) === StoreViewCodes::ADMIN) {
131
                throw new \Exception(sprintf('Can\'t initialize the URL key for category "%s" because columns "url_key" or "name" have a value set for default store view', $path));
132
            }
133
            // stop processing, because we're in a store
134
            // view row and a URL key is not mandatory
135
            return;
136
        }
137
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        // load ID of the actual store view
139
        $storeId = $this->getRowStoreId(StoreViewCodes::ADMIN);
140
141
        // explode the path into the category names
142
        if ($categories = $this->explode($this->getValue(ColumnKeys::PATH), '/')) {
143
            // initialize the array for the category paths
144
            $categoryPaths = array();
145
            // iterate over the parent category names and try
146
            // to load the categories to build the URL path
147
            for ($i = sizeof($categories) - 1; $i > 1; $i--) {
148
                try {
149
                    // prepare the expected category name
150
                    $categoryPath = implode('/', array_slice($categories, 0, $i));
151
                    // load the existing category and prepend the URL key the array with the category URL keys
152
                    $existingCategory = $this->getCategoryByPkAndStoreId($this->mapPath($categoryPath), $storeId);
153
                    // query whether or not an URL key is available or not
154
                    if (isset($existingCategory[MemberNames::URL_KEY])) {
155
                        array_unshift($categoryPaths, $existingCategory[MemberNames::URL_KEY]);
156
                    } else {
157
                        $this->getSystemLogger()->debug(sprintf('Can\'t find URL key for category "%s"', $categoryPath));
158
                    }
159
                } catch (\Exception $e) {
160
                    $this->getSystemLogger()->debug(sprintf('Can\'t load parent category "%s"', $categoryPath));
161
                }
162
            }
163
        }
164
165
        // update the URL key with the unique value
166
        $this->setValue(
167
            ColumnKeys::URL_KEY,
168
            $urlKey = $this->makeUnique($this->getSubject(), $urlKey, array(implode('/', $categoryPaths)))
0 ignored issues
show
Bug introduced by
The variable $categoryPaths does not seem to be defined for all execution paths leading up to this point.

If you define a variable conditionally, it can happen that it is not defined for all execution paths.

Let’s take a look at an example:

function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}

In the above example, the variable $x is defined if you pass “foo” or “bar” as argument for $a. However, since the switch statement has no default case statement, if you pass any other value, the variable $x would be undefined.

Available Fixes

  1. Check for existence of the variable explicitly:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        if (isset($x)) { // Make sure it's always set.
            echo $x;
        }
    }
    
  2. Define a default value for the variable:

    function myFunction($a) {
        $x = ''; // Set a default which gets overridden for certain paths.
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
        }
    
        echo $x;
    }
    
  3. Add a value for the missing path:

    function myFunction($a) {
        switch ($a) {
            case 'foo':
                $x = 1;
                break;
    
            case 'bar':
                $x = 2;
                break;
    
            // We add support for the missing case.
            default:
                $x = '';
                break;
        }
    
        echo $x;
    }
    
Loading history...
Documentation introduced by
$this->getSubject() is of type object<TechDivision\Impo...jects\SubjectInterface>, but the function expects a object<TechDivision\Impo...yAwareSubjectInterface>.

It seems like the type of the argument is not accepted by the function/method which you are calling.

In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.

We suggest to add an explicit type cast like in the following example:

function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
Loading history...
169
        );
170
171
        // finally, append the URL key as last element to the path
172
        array_push($categoryPaths, $urlKey);
173
174
        // create the virtual column for the URL path
175
        if ($this->hasHeader(ColumnKeys::URL_PATH) === false) {
176
            $this->addHeader(ColumnKeys::URL_PATH);
177
        }
178
179
        // set the URL path
180
        $this->setValue(ColumnKeys::URL_PATH, implode('/', $categoryPaths));
181
    }
182
183
    /**
184
     * Return the primary key member name.
185
     *
186
     * @return string The primary key member name
187
     */
188
    protected function getPkMemberName()
189
    {
190
        return MemberNames::ENTITY_ID;
191
    }
192
193
    /**
194
     * Returns the category bunch processor instance.
195
     *
196
     * @return \TechDivision\Import\Category\Services\CategoryBunchProcessorInterface The category bunch processor instance
197
     */
198
    protected function getCategoryBunchProcessor()
199
    {
200
        return $this->categoryBunchProcessor;
201
    }
202
203
    /**
204
     * Returns the URL key utility instance.
205
     *
206
     * @return \TechDivision\Import\Utils\UrlKeyUtilInterface The URL key utility instance
207
     */
208
    protected function getUrlKeyUtil()
209
    {
210
        return $this->urlKeyUtil;
211
    }
212
213
    /**
214
     * Return's the category with the passed path.
215
     *
216
     * @param string $path The path of the category to return
217
     *
218
     * @return array The category
219
     * @throws \Exception Is thrown, if the requested category is not available
220
     */
221
    protected function getCategoryByPath($path)
222
    {
223
        return $this->getSubject()->getCategoryByPath($path);
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface TechDivision\Import\Subjects\SubjectInterface as the method getCategoryByPath() does only exist in the following implementations of said interface: TechDivision\Import\Cate...AbstractCategorySubject, TechDivision\Import\Category\Subjects\BunchSubject, TechDivision\Import\Cate...ts\SortableBunchSubject.

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. 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.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
Loading history...
224
    }
225
226
    /**
227
     * Returns the category with the passed primary key and the attribute values for the passed store ID.
228
     *
229
     * @param string  $pk      The primary key of the category to return
230
     * @param integer $storeId The store ID of the category values
231
     *
232
     * @return array|null The category data
233
     */
234
    protected function getCategoryByPkAndStoreId($pk, $storeId)
235
    {
236
        return $this->getCategoryBunchProcessor()->getCategoryByPkAndStoreId($pk, $storeId);
237
    }
238
239
    /**
240
     * Temporarily persist's the IDs of the passed category.
241
     *
242
     * @param array $category The category to temporarily persist the IDs for
243
     *
244
     * @return void
245
     */
246
    protected function setIds(array $category)
247
    {
248
        $this->setLastEntityId(isset($category[MemberNames::ENTITY_ID]) ? $category[MemberNames::ENTITY_ID] : null);
249
    }
250
251
    /**
252
     * Set's the ID of the category that has been created recently.
253
     *
254
     * @param string $lastEntityId The entity ID
255
     *
256
     * @return void
257
     */
258
    protected function setLastEntityId($lastEntityId)
259
    {
260
        $this->getSubject()->setLastEntityId($lastEntityId);
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface TechDivision\Import\Subjects\SubjectInterface as the method setLastEntityId() does only exist in the following implementations of said interface: TechDivision\Import\Cate...AbstractCategorySubject, TechDivision\Import\Category\Subjects\BunchSubject, TechDivision\Import\Cate...ts\SortableBunchSubject, TechDivision\Import\Plugins\ExportableSubjectImpl, TechDivision\Import\Subjects\ExportableTraitImpl.

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. 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.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
Loading history...
261
    }
262
263
    /**
264
     * Return's the PK to of the product.
265
     *
266
     * @return integer The PK to create the relation with
267
     */
268
    protected function getPrimaryKey()
269
    {
270
        $this->getSubject()->getLastEntityId();
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface TechDivision\Import\Subjects\SubjectInterface as the method getLastEntityId() does only exist in the following implementations of said interface: TechDivision\Import\Cate...AbstractCategorySubject, TechDivision\Import\Category\Subjects\BunchSubject, TechDivision\Import\Cate...ts\SortableBunchSubject, TechDivision\Import\Observers\EntitySubjectImpl, TechDivision\Import\Plugins\ExportableSubjectImpl, TechDivision\Import\Subjects\ExportableTraitImpl.

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. 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.
  1. Add the method to the interface:

    interface User
    {
        /** @return string */
        public function getPassword();
    
        /** @return string */
        public function getDisplayName();
    }
    
Loading history...
271
    }
272
273
    /**
274
     * Load's and return's the url_key with the passed primary ID.
275
     *
276
     * @param \TechDivision\Import\Subjects\UrlKeyAwareSubjectInterface $subject      The subject to load the URL key
277
     * @param int                                                       $primaryKeyId The ID from category
278
     *
279
     * @return string|null url_key or null
280
     */
281
    protected function loadUrlKey(UrlKeyAwareSubjectInterface $subject, $primaryKeyId)
282
    {
283
        return $this->getUrlKeyUtil()->loadUrlKey($subject, $primaryKeyId);
0 ignored issues
show
Bug introduced by
The method loadUrlKey() does not seem to exist on object<TechDivision\Impo...ls\UrlKeyUtilInterface>.

This check looks for calls to methods that do not seem to exist on a given type. It looks for the method on the type itself as well as in inherited classes or implemented interfaces.

This is most likely a typographical error or the method has been renamed.

Loading history...
284
    }
285
286
    /**
287
     * Make's the passed URL key unique by adding the next number to the end.
288
     *
289
     * @param \TechDivision\Import\Subjects\UrlKeyAwareSubjectInterface $subject  The subject to make the URL key unique for
290
     * @param string                                                    $urlKey   The URL key to make unique
291
     * @param array                                                     $urlPaths The URL paths to make unique
292
     *
293
     * @return string The unique URL key
294
     */
295
    protected function makeUnique(UrlKeyAwareSubjectInterface $subject, string $urlKey, array $urlPaths = array())
296
    {
297
        return $this->getUrlKeyUtil()->makeUnique($subject, $urlKey, $urlPaths);
0 ignored issues
show
Unused Code introduced by
The call to UrlKeyUtilInterface::makeUnique() has too many arguments starting with $urlPaths.

This check compares calls to functions or methods with their respective definitions. If the call has more arguments than are defined, it raises an issue.

If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress.

In this case you can add the @ignore PhpDoc annotation to the duplicate definition and it will be ignored.

Loading history...
298
    }
299
}
300