Document::mergeResources() - Code Metrics - Inspection of "New resource-based API" - tobscure/json-api - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#119)

by Toby

created 2017-03-30 04:06 UTC

Document::mergeResources() B

↳ Parent: Document

Complexity

Conditions	6
Paths	6

Size

Total Lines	22
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	14
CRAP Score	6.0106

Importance

Changes

Metric	Value
c	0
b	0
f	0
dl	0
loc	22
ccs	14
cts	15
cp	0.9333
rs	8.6737
cc	6
eloc	11
nc	6
nop	3
crap	6.0106

<?php

/*
 * This file is part of JSON-API.
 *
 * (c) Toby Zerner <[email protected]>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Tobscure\JsonApi;

use JsonSerializable;

class Document implements JsonSerializable
{
    use LinksTrait, SelfLinkTrait, PaginationLinksTrait, MetaTrait;

    const MEDIA_TYPE = 'application/vnd.api+json';

    private $data;
    private $errors;
    private $jsonapi;

    private $include = [];
    private $fields = [];

    private function __construct()
    {
    }

    /**
     * @param ResourceInterface|ResourceInterface[] $data
     *
     * @return self
     */
    public static function fromData($data)
    {
        $document = new self;
        $document->setData($data);

        return $document;
    }

    /**
     * @param array $meta
     *
     * @return self
     */
    public static function fromMeta(array $meta)
    {
        $document = new self;
        $document->setMeta($meta);

        return $document;
    }

    /**
     * @param Error[] $errors
     *
     * @return self
     */
    public static function fromErrors(array $errors)
    {
        $document = new self;
        $document->setErrors($errors);

        return $document;
    }

    /**
     * Set the primary data.
     *
     * @param ResourceInterface|ResourceInterface[]|null $data
     */
    public function setData($data)
    {
        $this->data = $data;
    }

    /**
     * Set the errors array.
     *
     * @param Error[]|null $errors
     */
    public function setErrors(array $errors = null)
    {
        $this->errors = $errors;
    }

    /**
     * Set the jsonapi version.
     *
     * @param string $version
     */
    public function setApiVersion($version)
    {
        $this->jsonapi['version'] = $version;
    }

    /**
     * Set the jsonapi meta information.
     *
     * @param array $meta
     */
    public function setApiMeta(array $meta)
    {
        $this->jsonapi['meta'] = $meta;
    }

    /**
     * Set the relationship paths to include.
     *
     * @param string[] $include
     */
    public function setInclude($include)
    {
        $this->include = $include;
    }

    /**
     * Set the sparse fieldsets.
     *
     * @param array $fields
     */
    public function setFields($fields)
    {
        $this->fields = $fields;
    }

    /**
     * Serialize for JSON usage.
     *
     * @return array
     */
    public function jsonSerialize()
    {
        $document = [
            'links' => $this->links,
            'meta' => $this->meta,
            'errors' => $this->errors,
            'jsonapi' => $this->jsonapi
        ];

        if ($this->data) {
            $isCollection = is_array($this->data);
            $resources = $isCollection ? $this->data : [$this->data];

            $map = $this->buildResourceMap($resources);

            $primary = $this->extractResourcesFromMap($map, $resources);

            $document['data'] = $isCollection ? $primary : $primary[0];

            if ($map) {

                $document['included'] = call_user_func_array('array_merge', $map);
            }
        }

        return (object) array_filter($document);
    }

    private function buildResourceMap(array $resources)
    {
        $map = [];

        $include = $this->buildRelationshipTree($this->include);

        $this->mergeResources($map, $resources, $include);

        return $map;
    }

    private function mergeResources(array &$map, array $resources, array $include)
    {
        foreach ($resources as $resource) {
            $relationships = [];

            foreach ($include as $name => $nested) {
                if (! ($relationship = $resource->getRelationship($name))) {
                    continue;
                }

                $relationships[$name] = $relationship;

                if ($data = $relationship->getData()) {
                    $children = is_array($data) ? $data : [$data];

                    $this->mergeResources($map, $children, $nested);
                }
            }

            $this->mergeResource($map, $resource, $relationships);
        }
    }

    private function mergeResource(array &$map, ResourceInterface $resource, array $relationships)
    {
        $type = $resource->getType();
        $id = $resource->getId();
        $links = $resource->getLinks();
        $meta = $resource->getMeta();

        $fields = isset($this->fields[$type]) ? $this->fields[$type] : null;

        $attributes = $resource->getAttributes($fields);

        if ($fields) {
            $keys = array_flip($fields);

            $attributes = array_intersect_key($attributes, $keys);
            $relationships = array_intersect_key($relationships, $keys);
        }

        if (empty($map[$type][$id])) {
            $map[$type][$id] = new ResourceObject($type, $id);
        }

        array_map([$map[$type][$id], 'setAttribute'], array_keys($attributes), $attributes);
        array_map([$map[$type][$id], 'setRelationship'], array_keys($relationships), $relationships);
        array_map([$map[$type][$id], 'setLink'], array_keys($links), $links);
        array_map([$map[$type][$id], 'setMetaItem'], array_keys($meta), $meta);
    }

    private function extractResourcesFromMap(array &$map, array $resources)
    {
        return array_filter(
            array_map(function ($resource) use (&$map) {
                $type = $resource->getType();
                $id = $resource->getId();

                if (isset($map[$type][$id])) {
                    $resource = $map[$type][$id];
                    unset($map[$type][$id]);

                    return $resource;
                }
            }, $resources)
        );
    }

    private function buildRelationshipTree(array $paths)
    {
        $tree = [];

        foreach ($paths as $path) {
            $keys = explode('.', $path);
            $array = &$tree;

            foreach ($keys as $key) {
                if (! isset($array[$key])) {
                    $array[$key] = [];
                }

                $array = &$array[$key];
            }
        }

        return $tree;
    }
}


1		<?php
2
3		/*
4		* This file is part of JSON-API.
5		*
6		* (c) Toby Zerner <[email protected]>
7		*
8		* For the full copyright and license information, please view the LICENSE
9		* file that was distributed with this source code.
10		*/
11
12		namespace Tobscure\JsonApi;
13
14		use JsonSerializable;
15
16		class Document implements JsonSerializable
17		{
18		use LinksTrait, SelfLinkTrait, PaginationLinksTrait, MetaTrait;
19
20		const MEDIA_TYPE = 'application/vnd.api+json';
21
22		private $data;
23		private $errors;
24		private $jsonapi;
25
26		private $include = [];
27		private $fields = [];
28
29	24	private function __construct()
30		{
31	24	}
32
33		/**
34		* @param ResourceInterface\|ResourceInterface[] $data
35		*
36		* @return self
37		*/
38	15	public static function fromData($data)
39		{
40	15	$document = new self;
41	15	$document->setData($data);
42
43	15	return $document;
44		}
45
46		/**
47		* @param array $meta
48		*
49		* @return self
50		*/
51	6	public static function fromMeta(array $meta)
52		{
53	6	$document = new self;
54	6	$document->setMeta($meta);
55
56	6	return $document;
57		}
58
59		/**
60		* @param Error[] $errors
61		*
62		* @return self
63		*/
64	3	public static function fromErrors(array $errors)
65		{
66	3	$document = new self;
67	3	$document->setErrors($errors);
68
69	3	return $document;
70		}
71
72		/**
73		* Set the primary data.
74		*
75		* @param ResourceInterface\|ResourceInterface[]\|null $data
76		*/
77	15	public function setData($data)
78		{
79	15	$this->data = $data;
80	15	}
81
82		/**
83		* Set the errors array.
84		*
85		* @param Error[]\|null $errors
86		*/
87	3	public function setErrors(array $errors = null)
88		{
89	3	$this->errors = $errors;
90	3	}
91
92		/**
93		* Set the jsonapi version.
94		*
95		* @param string $version
96		*/
97		public function setApiVersion($version)
98		{
99		$this->jsonapi['version'] = $version;
100		}
101
102		/**
103		* Set the jsonapi meta information.
104		*
105		* @param array $meta
106		*/
107		public function setApiMeta(array $meta)
108		{
109		$this->jsonapi['meta'] = $meta;
110		}
111
112		/**
113		* Set the relationship paths to include.
114		*
115		* @param string[] $include
116		*/
117	3	public function setInclude($include)
118		{
119	3	$this->include = $include;
120	3	}
121
122		/**
123		* Set the sparse fieldsets.
124		*
125		* @param array $fields
126		*/
127	3	public function setFields($fields)
128		{
129	3	$this->fields = $fields;
130	3	}
131
132		/**
133		* Serialize for JSON usage.
134		*
135		* @return array
136		*/
137	24	public function jsonSerialize()
138		{
139		$document = [
140	24	'links' => $this->links,
141	24	'meta' => $this->meta,
142	24	'errors' => $this->errors,
143	24	'jsonapi' => $this->jsonapi
144	24	];
145
146	24	if ($this->data) {
147	15	$isCollection = is_array($this->data);
148	15	$resources = $isCollection ? $this->data : [$this->data];
149
150	15	$map = $this->buildResourceMap($resources);
151
152	15	$primary = $this->extractResourcesFromMap($map, $resources);
153
154	15	$document['data'] = $isCollection ? $primary : $primary[0];
155
156	15	if ($map) {
		0 ignored issues – show Bug Best Practice introduced 2017-03-29 10:41 UTC by Report Bug Copy Issue Report The expression `$map` of type `array` is implicitly converted to a boolean; are you sure this is intended? If so, consider using `! empty($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...
157	15	$document['included'] = call_user_func_array('array_merge', $map);
158	15	}
159	15	}
160
161	24	return (object) array_filter($document);
162		}
163
164	15	private function buildResourceMap(array $resources)
165		{
166	15	$map = [];
167
168	15	$include = $this->buildRelationshipTree($this->include);
169
170	15	$this->mergeResources($map, $resources, $include);
171
172	15	return $map;
173		}
174
175	15	private function mergeResources(array &$map, array $resources, array $include)
176		{
177	15	foreach ($resources as $resource) {
178	15	$relationships = [];
179
180	15	foreach ($include as $name => $nested) {
181	3	if (! ($relationship = $resource->getRelationship($name))) {
182		continue;
183		}
184
185	3	$relationships[$name] = $relationship;
186
187	3	if ($data = $relationship->getData()) {
188	3	$children = is_array($data) ? $data : [$data];
189
190	3	$this->mergeResources($map, $children, $nested);
191	3	}
192	15	}
193
194	15	$this->mergeResource($map, $resource, $relationships);
195	15	}
196	15	}
197
198	15	private function mergeResource(array &$map, ResourceInterface $resource, array $relationships)
199		{
200	15	$type = $resource->getType();
201	15	$id = $resource->getId();
202	15	$links = $resource->getLinks();
203	15	$meta = $resource->getMeta();
204
205	15	$fields = isset($this->fields[$type]) ? $this->fields[$type] : null;
206
207	15	$attributes = $resource->getAttributes($fields);
208
209	15	if ($fields) {
210	3	$keys = array_flip($fields);
211
212	3	$attributes = array_intersect_key($attributes, $keys);
213	3	$relationships = array_intersect_key($relationships, $keys);
214	3	}
215
216	15	if (empty($map[$type][$id])) {
217	15	$map[$type][$id] = new ResourceObject($type, $id);
218	15	}
219
220	15	array_map([$map[$type][$id], 'setAttribute'], array_keys($attributes), $attributes);
221	15	array_map([$map[$type][$id], 'setRelationship'], array_keys($relationships), $relationships);
222	15	array_map([$map[$type][$id], 'setLink'], array_keys($links), $links);
223	15	array_map([$map[$type][$id], 'setMetaItem'], array_keys($meta), $meta);
224	15	}
225
226	15	private function extractResourcesFromMap(array &$map, array $resources)
227		{
228	15	return array_filter(
229	15	array_map(function ($resource) use (&$map) {
230	15	$type = $resource->getType();
231	15	$id = $resource->getId();
232
233	15	if (isset($map[$type][$id])) {
234	15	$resource = $map[$type][$id];
235	15	unset($map[$type][$id]);
236
237	15	return $resource;
238		}
239	15	}, $resources)
240	15	);
241		}
242
243	15	private function buildRelationshipTree(array $paths)
244		{
245	15	$tree = [];
246
247	15	foreach ($paths as $path) {
248	3	$keys = explode('.', $path);
249	3	$array = &$tree;
250
251	3	foreach ($keys as $key) {
252	3	if (! isset($array[$key])) {
253	3	$array[$key] = [];
254	3	}
255
256	3	$array = &$array[$key];
257	3	}
258	15	}
259
260	15	return $tree;
261		}
262		}
263

tobscure / json-api

Pull Request — master (#119)

Document::mergeResources() B

Complexity

Size

Duplication

Code Coverage

Importance

Duplication Side-by-Side

Filter issues like