Scope::prepareTransformer() - Code Metrics - Inspection of "Major Refactor - simplifying and reducing assumpti..." - flipbox/transform - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — develop ( a379bf )

by Nate

created 2018-07-11 23:23 UTC

Scope::prepareTransformer() A

↳ Parent: Scope

Complexity

Conditions	2
Paths	2

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	6

Importance

Changes

Metric	Value
dl	0
loc	28
ccs	0
cts	26
cp	0
rs	9.472
c	0
b	0
f	0
cc	2
nc	2
nop	4
crap	6

<?php

/**
 * @author    Flipbox Factory
 * @copyright Copyright (c) 2017, Flipbox Digital
 * @link      https://github.com/flipbox/transform/releases/latest
 * @license   https://github.com/flipbox/transform/blob/master/LICENSE
 */

namespace Flipbox\Transform;

use Flipbox\Transform\Helpers\ArgumentHelper;
use Flipbox\Transform\Helpers\TransformerHelper;
use Flipbox\Transform\Resources\ResourceInterface;
use Flipbox\Transform\Transformers\TransformerInterface;

/**
 * @author Flipbox Factory <[email protected]>
 * @since 3.0.0
 */
class Scope
{
    /**
     * @var string
     */
    protected $scopeIdentifier;

    /**
     * @var Transform
     */
    protected $transform;

    /**
     * @var array
     */
    protected $parentScopes = [];

    /**
     * Scope constructor.
     * @param Transform $transform
     * @param string|null $scopeIdentifier
     * @param array $parentScopes
     */
    public function __construct(
        Transform $transform,
        string $scopeIdentifier = null,
        array $parentScopes = []
    ) {
        $this->transform = $transform;
        $this->scopeIdentifier = $scopeIdentifier;
        $this->parentScopes = $parentScopes;
    }

    /**
     * @return Transform
     */
    public function getTransform(): Transform
    {
        return $this->transform;
    }

    /**
     * @param $key
     * @return ParamBag
     */
    public function getParams(string $key = null): ParamBag
    {
        return $this->getTransform()->getParams(
            $this->getIdentifier($key)
        );
    }


    /**
     * Get the unique identifier for this scope.
     *
     * @param string $appendIdentifier
     *
     * @return string
     */
    public function getIdentifier(string $appendIdentifier = null): string
    {
        return implode(
            '.',
            array_filter(array_merge(
                $this->parentScopes,
                [
                    $this->scopeIdentifier,
                    $appendIdentifier
                ]
            ))
        );
    }

    /**
     * Is Requested.
     *
     * Check if - in relation to the current scope - this specific segment is allowed.
     * That means, if a.b.c is requested and the current scope is a.b, then c is allowed. If the current
     * scope is a then c is not allowed, even if it is there and potentially transformable.
     *
     * @param string $checkScopeSegment
     *
     * @return bool Returns the new number of elements in the array.
     */
    public function isRequested($checkScopeSegment): bool
    {
        return in_array(
            $this->scopeString($checkScopeSegment),
            $this->transform->getIncludes()
        );
    }

    /**
     * Is Excluded.
     *
     * Check if - in relation to the current scope - this specific segment should
     * be excluded. That means, if a.b.c is excluded and the current scope is a.b,
     * then c will not be allowed in the transformation whether it appears in
     * the list of default or available, requested includes.
     *
     * @param string $checkScopeSegment
     *
     * @return bool
     */
    protected function isExcluded($checkScopeSegment): bool
    {
        return in_array(
            $this->scopeString($checkScopeSegment),
            $this->transform->getExcludes()
        );
    }

    /**
     * @param callable $transformer
     * @param string $key
     * @return bool
     */
    public function includeValue(callable $transformer, string $key): bool
    {
        // Ignore optional (that have not been explicitly requested)
        if ($transformer instanceof TransformerInterface &&
            TransformerHelper::inInclude($transformer, $key) &&
            !$this->isRequested($key)
        ) {
            return false;
        }

        // Ignore excludes
        if ($this->isExcluded($key)) {
            return false;
        }

        return true;
    }

    /**
     * @param callable $transformer
     * @param mixed $data
     * @param array $extra
     * @return array
     */
    public function transform(callable $transformer, $data, array $extra = []): array
    {
        return (array)$this->prepareTransformer($transformer, $data, null, $extra);
    }

    /**
     * @param callable $transformer
     * @param array $data
     * @param string|null $key
     * @param array $params
     * @return array
     */
    public function prepareData(callable $transformer, array $data, string $key = null, array $params = []): array
    {
        foreach ($data as $k => $val) {
            $newKey = ($key ? $key . '.' : '') . $k;
            if (!$this->includeValue($transformer, $newKey)) {
                unset($data[$k]);
                continue;
            }

            $data[$k] = $this->prepareValue($transformer, $val, $newKey, $params);
        }

        return $this->filterFields($data);
    }

    /**
     * @param callable $transformer
     * @param $value
     * @param string|null $key
     * @param array $params
     * @return mixed
     */
    protected function prepareValue(callable $transformer, $value, string $key = null, array $params = [])
    {
        if ($value instanceof ResourceInterface) {
            return $this->prepareResource($value, $key, $params);
        }

        if (TransformerHelper::isClosure($value)) {
            return $this->prepareClosure($value, $key, $params);
        }

        if (TransformerHelper::isTransformer($value)) {
            return $this->prepareTransformer($value, $key, $params);
function acceptsInteger($int) { }

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

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        }

        if (is_array($value)) {
            return $this->prepareData($transformer, $value, $key, $params);
        }

        return $value;
    }

    /**
     * @param ResourceInterface $transformer
     * @param string $key
     * @param array $params
     * @return mixed
     */
    protected function prepareResource(
        ResourceInterface $transformer,
        string $key,
        array $params = []
    ) {
        return call_user_func_array(
            $transformer,
            array_merge(
                [$this, $key],
                $params
            )
        );
    }

    /**
     * @param \Closure $transformer
     * @param string|null $key
     * @param array $extra
     * @return mixed
     */
    protected function prepareClosure(\Closure $transformer, string $key = null, array $extra = [])
    {
        $args = ['scope' => $this, 'identifier' => $key];

        $args = ArgumentHelper::closure(
            $transformer,
            array_merge(
                $extra,
                $args
            )
        );

        return call_user_func_array(
            $transformer,
            array_merge(
                $args
            )
        );
    }

    /**
     * @param callable $transformer
     * @param $data
     * @param string|null $key
     * @param array $extra
     * @return mixed
     */
    protected function prepareTransformer(callable $transformer, $data, string $key = null, array $extra = [])
    {
        if ($transformer instanceof TransformerInterface) {
            $args = ArgumentHelper::callable(
                $transformer,
                array_merge(
                    $extra,
                    [
                        'scope' => $this,
                        'identifier' => $key
                    ]
                )
            );

            return call_user_func_array(
                $transformer,
                array_merge(
                    [$data, $this, $key],
                    $args
                )
            );
        }

        return call_user_func(
            $transformer,
            $data
        );
    }

    /**
     * @param string $identifier
     * @return Scope
     */
    public function childScope(string $identifier): Scope
    {
        $parentScopes = $this->parentScopes;
        $parentScopes[] = $this->scopeIdentifier;

        return new static(
            $this->getTransform(),
            $identifier,
            $parentScopes
        );
    }

    /**
     * Check, if this is the root scope.
     *
     * @return bool
     */
    protected function isRootScope(): bool
    {
        return empty($this->parentScopes);
    }

    /**
     * Filter the provided data with the requested filter fields for
     * the scope resource
     *
     * @param array $data
     *
     * @return array
     */
    protected function filterFields(array $data): array
    {
        $fields = $this->getFilterFields();

        if ($fields === null) {
            return $data;
        }

        return array_intersect_key(
            $data,
            array_flip(
                iterator_to_array($fields)
            )
        );
    }

    /**
     * Return the requested filter fields for the scope resource
     *
     * @internal
     *
     * @return ParamBag|null
     */
    protected function getFilterFields()
    {
        return $this->transform->getField(
            $this->scopeIdentifier
        );
    }

    /**
     * @param string $checkScopeSegment
     * @return string
     */
    private function scopeString(string $checkScopeSegment): string
    {
        if (!empty($this->parentScopes)) {
            $scopeArray = array_slice($this->parentScopes, 1);
            array_push($scopeArray, $this->scopeIdentifier, $checkScopeSegment);
        } else {
            $scopeArray = [$checkScopeSegment];
        }

        return implode('.', (array)$scopeArray);
    }
}


1			<?php
2
3			/**
4			* @author Flipbox Factory
5			* @copyright Copyright (c) 2017, Flipbox Digital
6			* @link https://github.com/flipbox/transform/releases/latest
7			* @license https://github.com/flipbox/transform/blob/master/LICENSE
8			*/
9
10			namespace Flipbox\Transform;
11
12			use Flipbox\Transform\Helpers\ArgumentHelper;
13			use Flipbox\Transform\Helpers\TransformerHelper;
14			use Flipbox\Transform\Resources\ResourceInterface;
15			use Flipbox\Transform\Transformers\TransformerInterface;
16
17			/**
18			* @author Flipbox Factory <[email protected]>
19			* @since 3.0.0
20			*/
21			class Scope
22			{
23			/**
24			* @var string
25			*/
26			protected $scopeIdentifier;
27
28			/**
29			* @var Transform
30			*/
31			protected $transform;
32
33			/**
34			* @var array
35			*/
36			protected $parentScopes = [];
37
38			/**
39			* Scope constructor.
40			* @param Transform $transform
41			* @param string\|null $scopeIdentifier
42			* @param array $parentScopes
43			*/
44			public function __construct(
45			Transform $transform,
46			string $scopeIdentifier = null,
47			array $parentScopes = []
48			) {
49			$this->transform = $transform;
50			$this->scopeIdentifier = $scopeIdentifier;
51			$this->parentScopes = $parentScopes;
52			}
53
54			/**
55			* @return Transform
56			*/
57			public function getTransform(): Transform
58			{
59			return $this->transform;
60			}
61
62			/**
63			* @param $key
64			* @return ParamBag
65			*/
66			public function getParams(string $key = null): ParamBag
67			{
68			return $this->getTransform()->getParams(
69			$this->getIdentifier($key)
70			);
71			}
72
73
74			/**
75			* Get the unique identifier for this scope.
76			*
77			* @param string $appendIdentifier
78			*
79			* @return string
80			*/
81			public function getIdentifier(string $appendIdentifier = null): string
82			{
83			return implode(
84			'.',
85			array_filter(array_merge(
86			$this->parentScopes,
87			[
88			$this->scopeIdentifier,
89			$appendIdentifier
90			]
91			))
92			);
93			}
94
95			/**
96			* Is Requested.
97			*
98			* Check if - in relation to the current scope - this specific segment is allowed.
99			* That means, if a.b.c is requested and the current scope is a.b, then c is allowed. If the current
100			* scope is a then c is not allowed, even if it is there and potentially transformable.
101			*
102			* @param string $checkScopeSegment
103			*
104			* @return bool Returns the new number of elements in the array.
105			*/
106			public function isRequested($checkScopeSegment): bool
107			{
108			return in_array(
109			$this->scopeString($checkScopeSegment),
110			$this->transform->getIncludes()
111			);
112			}
113
114			/**
115			* Is Excluded.
116			*
117			* Check if - in relation to the current scope - this specific segment should
118			* be excluded. That means, if a.b.c is excluded and the current scope is a.b,
119			* then c will not be allowed in the transformation whether it appears in
120			* the list of default or available, requested includes.
121			*
122			* @param string $checkScopeSegment
123			*
124			* @return bool
125			*/
126			protected function isExcluded($checkScopeSegment): bool
127			{
128			return in_array(
129			$this->scopeString($checkScopeSegment),
130			$this->transform->getExcludes()
131			);
132			}
133
134			/**
135			* @param callable $transformer
136			* @param string $key
137			* @return bool
138			*/
139			public function includeValue(callable $transformer, string $key): bool
140			{
141			// Ignore optional (that have not been explicitly requested)
142			if ($transformer instanceof TransformerInterface &&
143			TransformerHelper::inInclude($transformer, $key) &&
144			!$this->isRequested($key)
145			) {
146			return false;
147			}
148
149			// Ignore excludes
150			if ($this->isExcluded($key)) {
151			return false;
152			}
153
154			return true;
155			}
156
157			/**
158			* @param callable $transformer
159			* @param mixed $data
160			* @param array $extra
161			* @return array
162			*/
163			public function transform(callable $transformer, $data, array $extra = []): array
164			{
165			return (array)$this->prepareTransformer($transformer, $data, null, $extra);
166			}
167
168			/**
169			* @param callable $transformer
170			* @param array $data
171			* @param string\|null $key
172			* @param array $params
173			* @return array
174			*/
175			public function prepareData(callable $transformer, array $data, string $key = null, array $params = []): array
176			{
177			foreach ($data as $k => $val) {
178			$newKey = ($key ? $key . '.' : '') . $k;
179			if (!$this->includeValue($transformer, $newKey)) {
180			unset($data[$k]);
181			continue;
182			}
183
184			$data[$k] = $this->prepareValue($transformer, $val, $newKey, $params);
185			}
186
187			return $this->filterFields($data);
188			}
189
190			/**
191			* @param callable $transformer
192			* @param $value
193			* @param string\|null $key
194			* @param array $params
195			* @return mixed
196			*/
197			protected function prepareValue(callable $transformer, $value, string $key = null, array $params = [])
198			{
199			if ($value instanceof ResourceInterface) {
200			return $this->prepareResource($value, $key, $params);
201			}
202
203			if (TransformerHelper::isClosure($value)) {
204			return $this->prepareClosure($value, $key, $params);
205			}
206
207			if (TransformerHelper::isTransformer($value)) {
208			return $this->prepareTransformer($value, $key, $params);
			0 ignored issues – show Documentation introduced 2018-07-11 23:25 UTC by Report Bug Copy Issue Report `$params` is of type `array`, but the function expects a `null\|string`. 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) $x); Loading history...
209			}
210
211			if (is_array($value)) {
212			return $this->prepareData($transformer, $value, $key, $params);
213			}
214
215			return $value;
216			}
217
218			/**
219			* @param ResourceInterface $transformer
220			* @param string $key
221			* @param array $params
222			* @return mixed
223			*/
224			protected function prepareResource(
225			ResourceInterface $transformer,
226			string $key,
227			array $params = []
228			) {
229			return call_user_func_array(
230			$transformer,
231			array_merge(
232			[$this, $key],
233			$params
234			)
235			);
236			}
237
238			/**
239			* @param \Closure $transformer
240			* @param string\|null $key
241			* @param array $extra
242			* @return mixed
243			*/
244			protected function prepareClosure(\Closure $transformer, string $key = null, array $extra = [])
245			{
246			$args = ['scope' => $this, 'identifier' => $key];
247
248			$args = ArgumentHelper::closure(
249			$transformer,
250			array_merge(
251			$extra,
252			$args
253			)
254			);
255
256			return call_user_func_array(
257			$transformer,
258			array_merge(
259			$args
260			)
261			);
262			}
263
264			/**
265			* @param callable $transformer
266			* @param $data
267			* @param string\|null $key
268			* @param array $extra
269			* @return mixed
270			*/
271			protected function prepareTransformer(callable $transformer, $data, string $key = null, array $extra = [])
272			{
273			if ($transformer instanceof TransformerInterface) {
274			$args = ArgumentHelper::callable(
275			$transformer,
276			array_merge(
277			$extra,
278			[
279			'scope' => $this,
280			'identifier' => $key
281			]
282			)
283			);
284
285			return call_user_func_array(
286			$transformer,
287			array_merge(
288			[$data, $this, $key],
289			$args
290			)
291			);
292			}
293
294			return call_user_func(
295			$transformer,
296			$data
297			);
298			}
299
300			/**
301			* @param string $identifier
302			* @return Scope
303			*/
304			public function childScope(string $identifier): Scope
305			{
306			$parentScopes = $this->parentScopes;
307			$parentScopes[] = $this->scopeIdentifier;
308
309			return new static(
310			$this->getTransform(),
311			$identifier,
312			$parentScopes
313			);
314			}
315
316			/**
317			* Check, if this is the root scope.
318			*
319			* @return bool
320			*/
321			protected function isRootScope(): bool
322			{
323			return empty($this->parentScopes);
324			}
325
326			/**
327			* Filter the provided data with the requested filter fields for
328			* the scope resource
329			*
330			* @param array $data
331			*
332			* @return array
333			*/
334			protected function filterFields(array $data): array
335			{
336			$fields = $this->getFilterFields();
337
338			if ($fields === null) {
339			return $data;
340			}
341
342			return array_intersect_key(
343			$data,
344			array_flip(
345			iterator_to_array($fields)
346			)
347			);
348			}
349
350			/**
351			* Return the requested filter fields for the scope resource
352			*
353			* @internal
354			*
355			* @return ParamBag\|null
356			*/
357			protected function getFilterFields()
358			{
359			return $this->transform->getField(
360			$this->scopeIdentifier
361			);
362			}
363
364			/**
365			* @param string $checkScopeSegment
366			* @return string
367			*/
368			private function scopeString(string $checkScopeSegment): string
369			{
370			if (!empty($this->parentScopes)) {
371			$scopeArray = array_slice($this->parentScopes, 1);
372			array_push($scopeArray, $this->scopeIdentifier, $checkScopeSegment);
373			} else {
374			$scopeArray = [$checkScopeSegment];
375			}
376
377			return implode('.', (array)$scopeArray);
378			}
379			}
380

flipbox / transform

Push — develop ( a379bf )

Scope::prepareTransformer() A

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