Completed
Push — master ( 4f4774...00e15e )
by Dmitry
02:49
created

Annotation::getRepositoryMapping()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 8
Code Lines 5

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
dl 0
loc 8
rs 9.4285
c 0
b 0
f 0
cc 2
eloc 5
nc 2
nop 0
1
<?php
2
3
namespace Tarantool\Mapper\Plugin;
4
5
use Exception;
6
7
use phpDocumentor\Reflection\DocBlockFactory;
8
use ReflectionClass;
9
use ReflectionProperty;
10
11
use Tarantool\Mapper\Entity;
12
use Tarantool\Mapper\Plugin;
13
use Tarantool\Mapper\Repository;
14
15
class Annotation extends UserClasses
16
{
17
    private $entities = [];
0 ignored issues
show
Comprehensibility introduced by
Consider using a different property name as you override a private property of the parent class.
Loading history...
18
    private $entityPostfix;
19
20
    private $repositories = [];
0 ignored issues
show
Comprehensibility introduced by
Consider using a different property name as you override a private property of the parent class.
Loading history...
21
    private $repositoryPostifx;
22
23
    public function register($class)
24
    {
25
        $isEntity = is_subclass_of($class, Entity::class);
0 ignored issues
show
Bug introduced by
Due to PHP Bug #53727, is_subclass_of might return inconsistent results on some PHP versions if \Tarantool\Mapper\Entity::class can be an interface. If so, you could instead use ReflectionClass::implementsInterface.
Loading history...
26
        $isRepository = is_subclass_of($class, Repository::class);
0 ignored issues
show
Bug introduced by
Due to PHP Bug #53727, is_subclass_of might return inconsistent results on some PHP versions if \Tarantool\Mapper\Repository::class can be an interface. If so, you could instead use ReflectionClass::implementsInterface.
Loading history...
27
28
        if (!$isEntity && !$isRepository) {
29
            throw new Exception("Invalid registration");
30
        }
31
32
        if ($isEntity) {
33
            if ($class == Entity::class) {
34
                throw new Exception("Invalid entity registration");
35
            }
36
            $this->entities[] = $class;
37
        }
38
39
        if ($isRepository) {
40
            if ($class == Repository::class) {
41
                throw new Exception("Invalid repository registration");
42
            }
43
            $this->repositories[] = $class;
44
        }
45
46
        $space = $this->getSpaceName($class);
47
        if ($this->mapper->getSchema()->hasSpace($space)) {
48
            if ($isEntity) {
49
                $this->mapEntity($space, $class);
50
            } else {
51
                $this->mapRepository($space, $class);
52
            }
53
        }
54
        return $this;
55
    }
56
57
    public function migrate()
58
    {
59
        $factory = DocBlockFactory::createInstance();
60
61
        $schema = $this->mapper->getSchema();
62
63
        foreach ($this->entities as $entity) {
64
            $spaceName = $this->getSpaceName($entity);
65
            $space = $schema->hasSpace($spaceName) ? $schema->getSpace($spaceName) : $schema->createSpace($spaceName);
66
67
            $this->mapEntity($spaceName, $entity);
68
69
            $class = new ReflectionClass($entity);
70
71
            foreach ($class->getProperties(ReflectionProperty::IS_PUBLIC) as $property) {
72
                $description = $factory->create($property->getDocComment());
73
                $tags = $description->getTags('var');
0 ignored issues
show
Unused Code introduced by
The call to DocBlock::getTags() has too many arguments starting with 'var'.

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...
74
75 View Code Duplication
                if (!count($tags)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
76
                    throw new Exception("No var tag for ".$entity.'::'.$property->getName());
77
                }
78
79 View Code Duplication
                if (count($tags) > 1) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
80
                    throw new Exception("Invalid var tag for ".$entity.'::'.$property->getName());
81
                }
82
83
                $property = $this->toUnderscore($property->getName());
84
                $type = $this->getTarantoolType($tags[0]->getType());
0 ignored issues
show
Bug introduced by
It seems like you code against a concrete implementation and not the interface phpDocumentor\Reflection\DocBlock\Tag as the method getType() does only exist in the following implementations of said interface: phpDocumentor\Reflection\DocBlock\Tags\Param, phpDocumentor\Reflection\DocBlock\Tags\Property, phpDocumentor\Reflection...Block\Tags\PropertyRead, phpDocumentor\Reflection...lock\Tags\PropertyWrite, phpDocumentor\Reflection\DocBlock\Tags\Return_, phpDocumentor\Reflection\DocBlock\Tags\Throws, phpDocumentor\Reflection\DocBlock\Tags\Var_.

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...
85
86
                if (!$space->hasProperty($property)) {
87
                    $space->addProperty($property, $type);
88
                }
89
            }
90
        }
91
92
        foreach ($this->repositories as $repository) {
93
            $spaceName = $this->getSpaceName($repository);
94
95
            if (!$schema->hasSpace($spaceName)) {
96
                throw new Exception("Repository with no entity definition");
97
            }
98
99
            $this->mapRepository($spaceName, $repository);
100
101
            $space = $schema->getSpace($spaceName);
102
            $properties = $class->getDefaultProperties();
0 ignored issues
show
Bug introduced by
The variable $class 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...
103
            if (array_key_exists('indexes', $properties)) {
104
                foreach ($properties['indexes'] as $index) {
0 ignored issues
show
Bug introduced by
The expression $properties['indexes'] of type null|integer|double|string|boolean|array is not guaranteed to be traversable. How about adding an additional type check?

There are different options of fixing this problem.

  1. If you want to be on the safe side, you can add an additional type-check:

    $collection = json_decode($data, true);
    if ( ! is_array($collection)) {
        throw new \RuntimeException('$collection must be an array.');
    }
    
    foreach ($collection as $item) { /** ... */ }
    
  2. If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:

    /** @var array $collection */
    $collection = json_decode($data, true);
    
    foreach ($collection as $item) { /** .. */ }
    
  3. Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.

Loading history...
105
                    if (!is_array($index)) {
106
                        $index = (array) $index;
107
                    }
108
                    if (!array_key_exists('fields', $index)) {
109
                        $index = ['fields' => $index];
110
                    }
111
112
                    $index['if_not_exists'] = true;
113
                    $space->addIndex($index);
114
                }
115
            }
116
        }
117
118
        foreach ($schema->getSpaces() as $space) {
119
            if (!count($space->getIndexes())) {
120
                if (!$space->hasProperty('id')) {
121
                    throw new Exception("No primary index on ". $space->getName());
122
                }
123
                $space->addIndex(['id']);
124
            }
125
        }
126
127
        return $this;
128
    }
129
130
    public function setEntityPostfix($postfix)
131
    {
132
        $this->entityPostfix = $postfix;
133
        return $this;
134
    }
135
136
    public function setRepositoryPostfix($postfix)
137
    {
138
        $this->repositoryPostifx = $postfix;
139
        return $this;
140
    }
141
142
    public function getRepositoryMapping()
143
    {
144
        $mapping = [];
145
        foreach ($this->repositories as $class) {
146
            $mapping[$this->getSpaceName($class)] = $class;
147
        }
148
        return $mapping;
149
    }
150
151
    public function getEntityMapping()
152
    {
153
        $mapping = [];
154
        foreach ($this->entities as $class) {
155
            $mapping[$this->getSpaceName($class)] = $class;
156
        }
157
        return $mapping;
158
    }
159
160
    private $spaceNames = [];
161
162
    public function getSpaceName($class)
163
    {
164
        if (!array_key_exists($class, $this->spaceNames)) {
165
            $reflection = new ReflectionClass($class);
166
            $className = $reflection->getShortName();
167
168 View Code Duplication
            if ($reflection->isSubclassOf(Repository::class)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
169
                if ($this->repositoryPostifx) {
170
                    $className = substr($className, 0, strlen($className) - strlen($this->repositoryPostifx));
171
                }
172
            }
173
174 View Code Duplication
            if ($reflection->isSubclassOf(Entity::class)) {
0 ignored issues
show
Duplication introduced by
This code seems to be duplicated across your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

Loading history...
175
                if ($this->entityPostfix) {
176
                    $className = substr($className, 0, strlen($className) - strlen($this->entityPostfix));
177
                }
178
            }
179
180
            $this->spaceNames[$class] = $this->toUnderscore($className);
181
        }
182
183
        return $this->spaceNames[$class];
184
    }
185
186
    private $underscores = [];
187
188
    private function toUnderscore($input)
189
    {
190
        if (!array_key_exists($input, $this->underscores)) {
191
            preg_match_all('!([A-Z][A-Z0-9]*(?=$|[A-Z][a-z0-9])|[A-Za-z][a-z0-9]+)!', $input, $matches);
192
            $ret = $matches[0];
193
            foreach ($ret as &$match) {
194
                $match = $match == strtoupper($match) ? strtolower($match) : lcfirst($match);
195
            }
196
            $this->underscores[$input] = implode('_', $ret);
197
        }
198
        return $this->underscores[$input];
199
    }
200
201
    private $tarantoolTypes = [];
202
203
    private function getTarantoolType(string $type)
204
    {
205
        if (array_key_exists($type, $this->tarantoolTypes)) {
206
            return $this->tarantoolTypes[$type];
207
        }
208
209
        if ($type[0] == '\\') {
210
            return $this->tarantoolTypes[$type] = 'unsigned';
211
        }
212
213
        switch ($type) {
214
            case 'int':
215
                return $this->tarantoolTypes[$type] = 'unsigned';
216
217
            default:
218
                return $this->tarantoolTypes[$type] = 'str';
219
        }
220
    }
221
}
222