ManyToManyRelation::hasRelated() - Code Metrics - Inspection of "more tests" - spiral/components - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Branch — feature/pre-split (8b986a)

by Anton

created 2017-01-19 15:00 UTC

ManyToManyRelation::hasRelated() A

↳ Parent: ManyToManyRelation

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	1
eloc	2
nc	1
nop	0
dl	0
loc	4
rs	10
c	0
b	0
f	0

<?php
/**
 * components
 *
 * @author    Wolfy-J
 */
namespace Spiral\ORM\Entities\Relations;

use Spiral\Database\Exceptions\QueryException;
use Spiral\ORM\CommandInterface;
use Spiral\ORM\Commands\NullCommand;
use Spiral\ORM\ContextualCommandInterface;
use Spiral\ORM\Entities\RecordIterator;
use Spiral\ORM\Entities\Relations\Traits\MatchTrait;
use Spiral\ORM\Entities\Relations\Traits\PartialTrait;
use Spiral\ORM\Exceptions\RelationException;
use Spiral\ORM\Exceptions\SelectorException;
use Spiral\ORM\Record;
use Spiral\ORM\RecordInterface;
use Spiral\ORM\RelationInterface;

class ManyToManyRelation extends AbstractRelation implements \IteratorAggregate, \Countable
{
    use MatchTrait, PartialTrait;

    /**
     * @var \SplObjectStorage
     */
    private $pivotData;

    /**
     * Linked records.
     *
     * @var RecordInterface[]
     */
    private $linked = [];

    /**
     * Record which pivot data was updated, record must still present in linked array.
     *
     * @var array
     */
    private $updated = [];

    /**
     * Records scheduled to be de-associated.
     *
     * @var RecordInterface[]
     */
    private $unlinked = [];

    /**
     * {@inheritdoc}
     */
    public function hasRelated(): bool
    {
        return !empty($this->linked);
    }

    /**
     * {@inheritdoc}
     */
    public function withContext(
        RecordInterface $parent,
        bool $loaded = false,
        array $data = null
    ): RelationInterface {
        /**
         * @var self $relation
         */
        $relation = parent::withContext($parent, $loaded, $data);
        $relation->pivotData = new \SplObjectStorage();

        return $relation;
    }

    /**
     * {@inheritdoc}
     */
    public function setRelated($value)
    {
        $this->loadData(true);

        if (is_null($value)) {
            $value = [];
        }

        if (!is_array($value)) {
            throw new RelationException("HasMany relation can only be set with array of entities");
        }

        //Sync values without forcing it (no autoloading), i.e. clear CURRENT associations
        //  $this->sync($value, [], false);
    }

    /**
     * @return $this
     */
    public function getRelated()
    {
        return $this;
    }

    /**
     * Iterate over linked instances, will force pre-loading unless partial.
     *
     * @return \ArrayIterator
     */
    public function getIterator()
    {
        return new \ArrayIterator($this->loadData(true)->linked);
    }

    /**
     * @return int
     */
    public function count()
    {
        return count($this->loadData(true)->linked);
    }

    /**
     * Get all unlinked records.
     *
     * @return \ArrayIterator
     */
    public function getUnlinked()
    {
        return new \ArrayIterator($this->unlinked);
    }

    /**
     * Get pivot data associated with specific instance.
     *
     * @param RecordInterface $record
     *
     * @return array
     *
     * @throws RelationException
     */
    public function getPivot(RecordInterface $record): array
    {
        if (!$this->pivotData->offsetExists($record)) {
            throw new RelationException("Unable to get pivot data for non linked object");
        }

        return $this->pivotData->offsetGet($record);
    }

    /**
     * Link record with parent entity. Only record instances is accepted.
     *
     * @param RecordInterface $record
     * @param array           $pivotData
     *
     * @return self
     *
     * @throws RelationException
     */
    public function link(RecordInterface $record, array $pivotData = []): self
    {
        $this->assertValid($record);

        if (in_array($record, $this->linked)) {
            //Merging pivot data
            $this->pivotData->offsetSet($record, $pivotData + $this->getPivot($record));

            if (in_array($record, $this->updated)) {
                //Indicating that record pivot data has been changed
                $this->updated[] = $record;
            }

            return $this;
        }

        //New association
        $this->linked[] = $record;
        $this->pivotData->offsetSet($record, $pivotData);

        return $this;
    }

    /**
     * Unlink specific entity from relation.
     *
     * @param RecordInterface $record
     *
     * @return self
     *
     * @throws RelationException When entity not linked.
     */
    public function unlink(RecordInterface $record): self
    {
        foreach ($this->linked as $index => $linked) {
            if ($linked === $record) {
                //Removing
                unset($this->linked[$index]);
                $this->unlinked[] = $linked;
                break;
            }
        }

        $this->linked = array_values($this->linked);

        return $this;
    }

    /**
     * Check if given query points to linked entity.
     *
     * Example:
     * echo $post->tags->has(1);
     * echo $post->tags->has(['name'=>'tag a']);
     *
     * @param array|RecordInterface|mixed $query Fields, entity or PK.
     *
     * @return bool
     */
    public function has($query)
    {
        return !empty($this->matchOne($query));
    }

    /**
     * Fine one entity for a given query or return null. Method will autoload data.
     *
     * Example: ->matchOne(['value' => 'something', ...]);
     *
     * @param array|RecordInterface|mixed $query Fields, entity or PK.
     *
     * @return RecordInterface|null
     */
    public function matchOne($query)
    {
        foreach ($this->loadData(true)->linked as $instance) {
            if ($this->match($instance, $query)) {
                return $instance;
            }
        }

        return null;
    }

    /**
     * Return only instances matched given query, performed in memory! Only simple conditions are
     * allowed. Not "find" due trademark violation. Method will autoload data.
     *
     * Example: ->matchMultiple(['value' => 'something', ...]);
     *
     * @param array|RecordInterface|mixed $query Fields, entity or PK.
     *
     * @return \ArrayIterator
     */
    public function matchMultiple($query)
    {
        $result = [];
        foreach ($this->loadData()->linked as $instance) {
            if ($this->match($instance, $query)) {
                $result[] = $instance;
            }
        }

        return new \ArrayIterator($result);
    }

    /**
     * {@inheritdoc}
     */
    public function queueCommands(ContextualCommandInterface $command): CommandInterface
    {
        return new NullCommand();
    }

    /**
     * Load related records from database.
     *
     * @param bool $autoload
     *
     * @return self
     *
     * @throws SelectorException
     * @throws QueryException (needs wrapping)
     */
    protected function loadData(bool $autoload = true): self
    {
        if ($this->loaded) {
            return $this;
        }

        $this->loaded = true;

        if (empty($this->data) || !is_array($this->data)) {
            if ($this->autoload && $autoload) {
                //Only for non partial selections
                $this->data = $this->loadRelated();
            } else {
                $this->data = [];
            }
        }

        return $this->initInstances();
    }

    /**
     * Fetch data from database. Lazy load.
     *
     * @return array
     */
    protected function loadRelated(): array
    {
        $innerKey = $this->key(Record::INNER_KEY);
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

        //todo: load

        return [];
    }

    /**
     * Init relations and populate pivot map.
     *
     * @return ManyToManyRelation
     */
    private function initInstances(): self
    {
        if (is_array($this->data) && !empty($this->data)) {
            //Iterates and instantiate records
            $iterator = new RecordIterator($this->data, $this->class, $this->orm);

            foreach ($iterator as $pivotData => $item) {
                if (in_array($item, $this->linked)) {
                    //Skip duplicates (if any?)
                    continue;
                }

                $this->pivotData->attach($item, $pivotData);
                $this->linked[] = $item;
            }
        }

        //Memory free
        $this->data = [];

        return $this;
    }
}

1			<?php
2			/**
3			* components
4			*
5			* @author Wolfy-J
6			*/
7			namespace Spiral\ORM\Entities\Relations;
8
9			use Spiral\Database\Exceptions\QueryException;
10			use Spiral\ORM\CommandInterface;
11			use Spiral\ORM\Commands\NullCommand;
12			use Spiral\ORM\ContextualCommandInterface;
13			use Spiral\ORM\Entities\RecordIterator;
14			use Spiral\ORM\Entities\Relations\Traits\MatchTrait;
15			use Spiral\ORM\Entities\Relations\Traits\PartialTrait;
16			use Spiral\ORM\Exceptions\RelationException;
17			use Spiral\ORM\Exceptions\SelectorException;
18			use Spiral\ORM\Record;
19			use Spiral\ORM\RecordInterface;
20			use Spiral\ORM\RelationInterface;
21
22			class ManyToManyRelation extends AbstractRelation implements \IteratorAggregate, \Countable
23			{
24			use MatchTrait, PartialTrait;
25
26			/**
27			* @var \SplObjectStorage
28			*/
29			private $pivotData;
30
31			/**
32			* Linked records.
33			*
34			* @var RecordInterface[]
35			*/
36			private $linked = [];
37
38			/**
39			* Record which pivot data was updated, record must still present in linked array.
40			*
41			* @var array
42			*/
43			private $updated = [];
44
45			/**
46			* Records scheduled to be de-associated.
47			*
48			* @var RecordInterface[]
49			*/
50			private $unlinked = [];
51
52			/**
53			* {@inheritdoc}
54			*/
55			public function hasRelated(): bool
56			{
57			return !empty($this->linked);
58			}
59
60			/**
61			* {@inheritdoc}
62			*/
63			public function withContext(
64			RecordInterface $parent,
65			bool $loaded = false,
66			array $data = null
67			): RelationInterface {
68			/**
69			* @var self $relation
70			*/
71			$relation = parent::withContext($parent, $loaded, $data);
72			$relation->pivotData = new \SplObjectStorage();
73
74			return $relation;
75			}
76
77			/**
78			* {@inheritdoc}
79			*/
80			public function setRelated($value)
81			{
82			$this->loadData(true);
83
84			if (is_null($value)) {
85			$value = [];
86			}
87
88			if (!is_array($value)) {
89			throw new RelationException("HasMany relation can only be set with array of entities");
90			}
91
92			//Sync values without forcing it (no autoloading), i.e. clear CURRENT associations
93			// $this->sync($value, [], false);
94			}
95
96			/**
97			* @return $this
98			*/
99			public function getRelated()
100			{
101			return $this;
102			}
103
104			/**
105			* Iterate over linked instances, will force pre-loading unless partial.
106			*
107			* @return \ArrayIterator
108			*/
109			public function getIterator()
110			{
111			return new \ArrayIterator($this->loadData(true)->linked);
112			}
113
114			/**
115			* @return int
116			*/
117			public function count()
118			{
119			return count($this->loadData(true)->linked);
120			}
121
122			/**
123			* Get all unlinked records.
124			*
125			* @return \ArrayIterator
126			*/
127			public function getUnlinked()
128			{
129			return new \ArrayIterator($this->unlinked);
130			}
131
132			/**
133			* Get pivot data associated with specific instance.
134			*
135			* @param RecordInterface $record
136			*
137			* @return array
138			*
139			* @throws RelationException
140			*/
141			public function getPivot(RecordInterface $record): array
142			{
143			if (!$this->pivotData->offsetExists($record)) {
144			throw new RelationException("Unable to get pivot data for non linked object");
145			}
146
147			return $this->pivotData->offsetGet($record);
148			}
149
150			/**
151			* Link record with parent entity. Only record instances is accepted.
152			*
153			* @param RecordInterface $record
154			* @param array $pivotData
155			*
156			* @return self
157			*
158			* @throws RelationException
159			*/
160			public function link(RecordInterface $record, array $pivotData = []): self
161			{
162			$this->assertValid($record);
163
164			if (in_array($record, $this->linked)) {
165			//Merging pivot data
166			$this->pivotData->offsetSet($record, $pivotData + $this->getPivot($record));
167
168			if (in_array($record, $this->updated)) {
169			//Indicating that record pivot data has been changed
170			$this->updated[] = $record;
171			}
172
173			return $this;
174			}
175
176			//New association
177			$this->linked[] = $record;
178			$this->pivotData->offsetSet($record, $pivotData);
179
180			return $this;
181			}
182
183			/**
184			* Unlink specific entity from relation.
185			*
186			* @param RecordInterface $record
187			*
188			* @return self
189			*
190			* @throws RelationException When entity not linked.
191			*/
192			public function unlink(RecordInterface $record): self
193			{
194			foreach ($this->linked as $index => $linked) {
195			if ($linked === $record) {
196			//Removing
197			unset($this->linked[$index]);
198			$this->unlinked[] = $linked;
199			break;
200			}
201			}
202
203			$this->linked = array_values($this->linked);
204
205			return $this;
206			}
207
208			/**
209			* Check if given query points to linked entity.
210			*
211			* Example:
212			* echo $post->tags->has(1);
213			* echo $post->tags->has(['name'=>'tag a']);
214			*
215			* @param array\|RecordInterface\|mixed $query Fields, entity or PK.
216			*
217			* @return bool
218			*/
219			public function has($query)
220			{
221			return !empty($this->matchOne($query));
222			}
223
224			/**
225			* Fine one entity for a given query or return null. Method will autoload data.
226			*
227			* Example: ->matchOne(['value' => 'something', ...]);
228			*
229			* @param array\|RecordInterface\|mixed $query Fields, entity or PK.
230			*
231			* @return RecordInterface\|null
232			*/
233			public function matchOne($query)
234			{
235			foreach ($this->loadData(true)->linked as $instance) {
236			if ($this->match($instance, $query)) {
237			return $instance;
238			}
239			}
240
241			return null;
242			}
243
244			/**
245			* Return only instances matched given query, performed in memory! Only simple conditions are
246			* allowed. Not "find" due trademark violation. Method will autoload data.
247			*
248			* Example: ->matchMultiple(['value' => 'something', ...]);
249			*
250			* @param array\|RecordInterface\|mixed $query Fields, entity or PK.
251			*
252			* @return \ArrayIterator
253			*/
254			public function matchMultiple($query)
255			{
256			$result = [];
257			foreach ($this->loadData()->linked as $instance) {
258			if ($this->match($instance, $query)) {
259			$result[] = $instance;
260			}
261			}
262
263			return new \ArrayIterator($result);
264			}
265
266			/**
267			* {@inheritdoc}
268			*/
269			public function queueCommands(ContextualCommandInterface $command): CommandInterface
270			{
271			return new NullCommand();
272			}
273
274			/**
275			* Load related records from database.
276			*
277			* @param bool $autoload
278			*
279			* @return self
280			*
281			* @throws SelectorException
282			* @throws QueryException (needs wrapping)
283			*/
284			protected function loadData(bool $autoload = true): self
285			{
286			if ($this->loaded) {
287			return $this;
288			}
289
290			$this->loaded = true;
291
292			if (empty($this->data) \|\| !is_array($this->data)) {
293			if ($this->autoload && $autoload) {
294			//Only for non partial selections
295			$this->data = $this->loadRelated();
296			} else {
297			$this->data = [];
298			}
299			}
300
301			return $this->initInstances();
302			}
303
304			/**
305			* Fetch data from database. Lazy load.
306			*
307			* @return array
308			*/
309			protected function loadRelated(): array
310			{
311			$innerKey = $this->key(Record::INNER_KEY);
			0 ignored issues – show Unused Code introduced 2017-01-19 15:06 UTC by Report Bug Copy Issue Report `$innerKey` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
312
313			//todo: load
314
315			return [];
316			}
317
318			/**
319			* Init relations and populate pivot map.
320			*
321			* @return ManyToManyRelation
322			*/
323			private function initInstances(): self
324			{
325			if (is_array($this->data) && !empty($this->data)) {
326			//Iterates and instantiate records
327			$iterator = new RecordIterator($this->data, $this->class, $this->orm);
328
329			foreach ($iterator as $pivotData => $item) {
330			if (in_array($item, $this->linked)) {
331			//Skip duplicates (if any?)
332			continue;
333			}
334
335			$this->pivotData->attach($item, $pivotData);
336			$this->linked[] = $item;
337			}
338			}
339
340			//Memory free
341			$this->data = [];
342
343			return $this;
344			}
345			}

spiral / components

Branch — feature/pre-split (8b986a)

ManyToManyRelation::hasRelated() A

Complexity

Size

Duplication

Importance

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