MetadataProvider::extract() - Code Metrics - Inspection of "Merge pull request #223 from c-harris/removeTestCo..." - Algo-Web/POData-Laravel - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 260504...c2ab20 )

by Alex

created 2020-02-26 16:31 UTC

MetadataProvider::extract() A

↳ Parent: MetadataProvider

Complexity

Conditions	5
Paths	4

Size

Total Lines	21
Code Lines	13

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	0
CRAP Score	30

Importance

Changes	2
Bugs	1	Features	1

Metric	Value
eloc	13
c	2
b	1
f	1
dl	0
loc	21
ccs	0
cts	15
cp	0
rs	9.5222
cc	5
nc	4
nop	1
crap	30

<?php

namespace AlgoWeb\PODataLaravel\Providers;

use AlgoWeb\PODataLaravel\Models\MetadataGubbinsHolder;
use AlgoWeb\PODataLaravel\Models\MetadataTrait;
use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationMonomorphic;
use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubRelationType;
use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationType;
use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityField;
use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityFieldType;
use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityGubbins;
use AlgoWeb\PODataLaravel\Models\ObjectMap\Map;
use Illuminate\Contracts\Container\BindingResolutionException;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Facades\Schema as Schema;
use Illuminate\Support\Str;
use POData\Common\InvalidOperationException;
use POData\Providers\Metadata\ResourceStreamInfo;
use POData\Providers\Metadata\SimpleMetadataProvider;
use POData\Providers\Metadata\Type\TypeCode;

class MetadataProvider extends MetadataBaseProvider
{
    use MetadataProviderStepTrait;

    protected $multConstraints = ['0..1' => ['1'], '1' => ['0..1', '*'], '*' => ['1', '*']];
    protected static $metaNAMESPACE = 'Data';
    protected static $isBooted = false;
    const POLYMORPHIC = 'polyMorphicPlaceholder';
    const POLYMORPHIC_PLURAL = 'polyMorphicPlaceholders';

    /**
     * @var Map The completed object map set at post Implement;
     */
    private $completedObjectMap;

    /**
     * @return \AlgoWeb\PODataLaravel\Models\ObjectMap\Map
     */
    public function getObjectMap()
    {
        return $this->completedObjectMap;
    }

    protected $relationHolder;

    public function __construct($app)
    {
        parent::__construct($app);
        self::$isBooted = false;
    }

    /**
     * @param  array                        $modelNames
     * @throws InvalidOperationException
     * @throws \Doctrine\DBAL\DBALException
     * @throws \ReflectionException
     * @return Map
     */
    private function extract(array $modelNames)
    {
        /** @var Map $objectMap */
        $objectMap = App::make('objectmap');
        foreach ($modelNames as $modelName) {
            try {
                /** @var MetadataTrait $modelInstance */
                $modelInstance = App::make($modelName);
            } catch (BindingResolutionException $e) {
                // if we can't instantiate modelName for whatever reason, move on
                continue;
            }
            $gubbins = $modelInstance->extractGubbins();
            $isEmpty = 0 === count($gubbins->getFields());
            $inArtisan = $this->isRunningInArtisan();
            if (!($isEmpty && $inArtisan)) {
                $objectMap->addEntity($gubbins);
            }
        }
        $this->handleCustomFunction($objectMap, self::$afterExtract);
        return $objectMap;
    }

    /**
     * @param  Map                       $objectMap
     * @throws InvalidOperationException
     * @return Map
     */
    private function unify(Map $objectMap)
    {
        /** @var MetadataGubbinsHolder $mgh */
        $mgh = $this->getRelationHolder();
        foreach ($objectMap->getEntities() as $entity) {
            $mgh->addEntity($entity);
        }
        $objectMap->setAssociations($mgh->getRelations());

        $this->handleCustomFunction($objectMap, self::$afterUnify);
        return $objectMap;
    }

    private function verify(Map $objectModel)
    {
        $objectModel->isOK();
        $this->handleCustomFunction($objectModel, self::$afterVerify);
    }

    /**
     * @param  Map                       $objectModel
     * @throws InvalidOperationException
     * @throws \ReflectionException
     */
    private function implement(Map $objectModel)
    {
        /** @var SimpleMetadataProvider $meta */
        $meta = App::make('metadata');
        $namespace = $meta->getContainerNamespace().'.';

        $entities = $objectModel->getEntities();
        foreach ($entities as $entity) {
            $baseType = null;
            $className = $entity->getClassName();
            $entityName = $entity->getName();
            $pluralName = Str::plural($entityName);
            $entityType = $meta->addEntityType(new \ReflectionClass($className), $entityName, null, false, $baseType);
            if ($entityType->hasBaseType() !== isset($baseType)) {
                throw new InvalidOperationException('');
            }
            $entity->setOdataResourceType($entityType);
            $this->implementProperties($entity);
            $meta->addResourceSet($pluralName, $entityType);
            $meta->oDataEntityMap[$className] = $meta->oDataEntityMap[$namespace.$entityName];
        }
        $metaCount = count($meta->oDataEntityMap);
        $entityCount = count($entities);
        $expected = 2 * $entityCount;
        if ($metaCount != $expected) {
            $msg = 'Expected ' . $expected . ' items, actually got '.$metaCount;
            throw new InvalidOperationException($msg);
        }

        if (0 === count($objectModel->getAssociations())) {
            return;
        }
        $assoc = $objectModel->getAssociations();
        foreach ($assoc as $association) {
            if (!$association->isOk()) {
                throw new InvalidOperationException('');
            }
            $this->implementAssociationsMonomorphic($objectModel, $association);
        }
        $this->handleCustomFunction($objectModel, self::$afterImplement);
    }

    /**
     * @param  Map                       $objectModel
     * @param  AssociationMonomorphic    $associationUnderHammer
     * @throws InvalidOperationException
     * @throws \ReflectionException
     */
    private function implementAssociationsMonomorphic(Map $objectModel, AssociationMonomorphic $associationUnderHammer)
    {
        /** @var SimpleMetadataProvider $meta */
        $meta = App::make('metadata');
        $first = $associationUnderHammer->getFirst();
        $last = $associationUnderHammer->getLast();
        switch ($associationUnderHammer->getAssociationType()) {
            case AssociationType::NULL_ONE_TO_NULL_ONE():
            case AssociationType::NULL_ONE_TO_ONE():
            case AssociationType::ONE_TO_ONE():
                $meta->addResourceReferenceSinglePropertyBidirectional(
                    $objectModel->getEntities()[$first->getBaseType()]->getOdataResourceType(),
                    $objectModel->getEntities()[$last->getBaseType()]->getOdataResourceType(),
                    $first->getRelationName(),
                    $last->getRelationName()
                );
                break;
            case AssociationType::NULL_ONE_TO_MANY():
            case AssociationType::ONE_TO_MANY():
                if ($first->getMultiplicity() == AssociationStubRelationType::MANY()) {
                    $oneSide = $last;
                    $manySide = $first;
                } else {
                    $oneSide = $first;
                    $manySide = $last;
                }
                $meta->addResourceReferencePropertyBidirectional(
                    $objectModel->getEntities()[$oneSide->getBaseType()]->getOdataResourceType(),
                    $objectModel->getEntities()[$manySide->getBaseType()]->getOdataResourceType(),
                    $oneSide->getRelationName(),
                    $manySide->getRelationName()
                );
                break;
            case AssociationType::MANY_TO_MANY():
                $meta->addResourceSetReferencePropertyBidirectional(
                    $objectModel->getEntities()[$first->getBaseType()]->getOdataResourceType(),
                    $objectModel->getEntities()[$last->getBaseType()]->getOdataResourceType(),
                    $first->getRelationName(),
                    $last->getRelationName()
                );
        }
    }

    /**
     * @param  EntityGubbins             $unifiedEntity
     * @throws InvalidOperationException
     * @throws \ReflectionException
     */
    private function implementProperties(EntityGubbins $unifiedEntity)
    {
        /** @var SimpleMetadataProvider $meta */
        $meta = App::make('metadata');
        $odataEntity = $unifiedEntity->getOdataResourceType();
        $keyFields = $unifiedEntity->getKeyFields();
        /** @var EntityField[] $fields */
        $fields = array_diff_key($unifiedEntity->getFields(), $keyFields);
        foreach ($keyFields as $keyField) {
            $meta->addKeyProperty($odataEntity, $keyField->getName(), $keyField->getEdmFieldType());
        }

        foreach ($fields as $field) {
            if ($field->getPrimitiveType() == 'blob') {
                $odataEntity->setMediaLinkEntry(true);
                $streamInfo = new ResourceStreamInfo($field->getName());
                $odataEntity->addNamedStream($streamInfo);
                continue;
            }

            $default = $field->getDefaultValue();
            $isFieldBool = TypeCode::BOOLEAN() == $field->getEdmFieldType();
            $default = $isFieldBool ? ($default ? 'true' : 'false') : strval($default);

            $meta->addPrimitiveProperty(
                $odataEntity,
                $field->getName(),
                $field->getEdmFieldType(),
                $field->getFieldType() == EntityFieldType::PRIMITIVE_BAG(),
                $default,
                $field->getIsNullable()
            );
        }
    }

    /**
     * Bootstrap the application services.  Post-boot.
     *
     * @throws InvalidOperationException
     * @throws \ReflectionException
     * @throws \Doctrine\DBAL\DBALException
     * @return void
     */
    public function boot()
    {
        App::forgetInstance('metadata');
        App::forgetInstance('objectmap');
        $this->relationHolder = new MetadataGubbinsHolder();

        self::$metaNAMESPACE = env('ODataMetaNamespace', 'Data');
        // If we aren't migrated, there's no DB tables to pull metadata _from_, so bail out early
        try {
            if (!Schema::hasTable(config('database.migrations'))) {
                return;
            }
        } catch (\Exception $e) {
            return;
        }

        $isCaching = true === $this->getIsCaching();
        $meta = Cache::get('metadata');
        $objectMap = Cache::get('objectmap');
        $hasCache = null != $meta && null != $objectMap;

        if ($isCaching && $hasCache) {
            App::instance('metadata', $meta);
            App::instance('objectmap', $objectMap);
            self::$isBooted = true;
            return;
        }
        $meta = App::make('metadata');

        $modelNames = $this->getCandidateModels();
        $objectModel = $this->extract($modelNames);
        $objectModel = $this->unify($objectModel);
        $this->verify($objectModel);
        $this->implement($objectModel);
        $this->completedObjectMap = $objectModel;
        $key = 'metadata';
        $objKey = 'objectmap';
        $this->handlePostBoot($isCaching, $hasCache, $key, $meta);
        $this->handlePostBoot($isCaching, $hasCache, $objKey, $objectModel);
        self::$isBooted = true;
    }

    /**
     * Register the application services.  Boot-time only.
     *
     * @return void
     */
    public function register()
    {
        $this->app->/* @scrutinizer ignore-call */singleton('metadata', function () {
            return new SimpleMetadataProvider('Data', self::$metaNAMESPACE);
        });
        $this->app->/* @scrutinizer ignore-call */singleton('objectmap', function () {
            return new Map();
        });
    }

    /**
     * @return array
     */
    protected function getCandidateModels()
    {
        $classes = $this->getClassMap();
        $ends = [];
        $startName = $this->getAppNamespace();
        foreach ($classes as $name) {
            if (Str::startsWith($name, $startName)) {
                if (in_array('AlgoWeb\\PODataLaravel\\Models\\MetadataTrait', class_uses($name))) {
                    if (is_subclass_of($name, '\\Illuminate\\Database\\Eloquent\\Model')) {
                        $ends[] = $name;
                    }
                }
            }
        }
        return $ends;
    }

    /**
     * @return MetadataGubbinsHolder
     */
    public function getRelationHolder()
    {
        return $this->relationHolder;
    }

    /**
     * Resolve possible reverse relation property names.
     *
     * @param Model $source
     * @param $propName
     * @throws InvalidOperationException
     * @return null|string
     * @internal param Model $target
     */
    public function resolveReverseProperty(Model $source, $propName)
    {
        if (!is_string($propName)) {
            throw new InvalidOperationException('Property name must be string');
        }
        $entity = $this->getObjectMap()->resolveEntity(get_class($source));
        if (null === $entity) {
            $msg = 'Source model not defined';
            throw new \InvalidArgumentException($msg);
        }
        $association = $entity->resolveAssociation($propName);

        if (null === $association) {
            return null;
        }
        $isFirst = $propName === $association->getFirst()->getRelationName();
        if (!$isFirst) {
            return $association->getFirst()->getRelationName();
        }

        if (!$association instanceof AssociationMonomorphic) {
            throw new InvalidOperationException('');
        }
        return $association->getLast()->getRelationName();
    }

    public function isRunningInArtisan()
    {
        return App::runningInConsole() && !App::runningUnitTests();
    }
}


1		<?php
2
3		namespace AlgoWeb\PODataLaravel\Providers;
4
5		use AlgoWeb\PODataLaravel\Models\MetadataGubbinsHolder;
6		use AlgoWeb\PODataLaravel\Models\MetadataTrait;
7		use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationMonomorphic;
8		use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationStubRelationType;
9		use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\Associations\AssociationType;
10		use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityField;
11		use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityFieldType;
12		use AlgoWeb\PODataLaravel\Models\ObjectMap\Entities\EntityGubbins;
13		use AlgoWeb\PODataLaravel\Models\ObjectMap\Map;
14		use Illuminate\Contracts\Container\BindingResolutionException;
15		use Illuminate\Database\Eloquent\Model;
16		use Illuminate\Support\Facades\App;
17		use Illuminate\Support\Facades\Cache;
18		use Illuminate\Support\Facades\Schema as Schema;
19		use Illuminate\Support\Str;
20	1	use POData\Common\InvalidOperationException;
21		use POData\Providers\Metadata\ResourceStreamInfo;
22	1	use POData\Providers\Metadata\SimpleMetadataProvider;
23		use POData\Providers\Metadata\Type\TypeCode;
24
25	1	class MetadataProvider extends MetadataBaseProvider
26		{
27		use MetadataProviderStepTrait;
28	1
29	1	protected $multConstraints = ['0..1' => ['1'], '1' => ['0..1', ''], '' => ['1', '*']];
30		protected static $metaNAMESPACE = 'Data';
31		protected static $isBooted = false;
32		const POLYMORPHIC = 'polyMorphicPlaceholder';
33		const POLYMORPHIC_PLURAL = 'polyMorphicPlaceholders';
34
35		/**
36		* @var Map The completed object map set at post Implement;
37		*/
38		private $completedObjectMap;
39
40		/**
41		* @return \AlgoWeb\PODataLaravel\Models\ObjectMap\Map
42		*/
43		public function getObjectMap()
44		{
45		return $this->completedObjectMap;
46		}
47
48		protected $relationHolder;
49
50		public function __construct($app)
51		{
52		parent::__construct($app);
53		self::$isBooted = false;
54		}
55
56		/**
57		* @param array $modelNames
58		* @throws InvalidOperationException
59		* @throws \Doctrine\DBAL\DBALException
60		* @throws \ReflectionException
61		* @return Map
62		*/
63		private function extract(array $modelNames)
64		{
65		/** @var Map $objectMap */
66		$objectMap = App::make('objectmap');
67		foreach ($modelNames as $modelName) {
68		try {
69		/** @var MetadataTrait $modelInstance */
70		$modelInstance = App::make($modelName);
71		} catch (BindingResolutionException $e) {
72		// if we can't instantiate modelName for whatever reason, move on
73		continue;
74		}
75		$gubbins = $modelInstance->extractGubbins();
76		$isEmpty = 0 === count($gubbins->getFields());
77		$inArtisan = $this->isRunningInArtisan();
78		if (!($isEmpty && $inArtisan)) {
79		$objectMap->addEntity($gubbins);
80		}
81		}
82		$this->handleCustomFunction($objectMap, self::$afterExtract);
83		return $objectMap;
84		}
85
86		/**
87		* @param Map $objectMap
88		* @throws InvalidOperationException
89		* @return Map
90		*/
91		private function unify(Map $objectMap)
92		{
93		/** @var MetadataGubbinsHolder $mgh */
94		$mgh = $this->getRelationHolder();
95		foreach ($objectMap->getEntities() as $entity) {
96		$mgh->addEntity($entity);
97		}
98		$objectMap->setAssociations($mgh->getRelations());
99
100		$this->handleCustomFunction($objectMap, self::$afterUnify);
101		return $objectMap;
102		}
103
104		private function verify(Map $objectModel)
105		{
106		$objectModel->isOK();
107		$this->handleCustomFunction($objectModel, self::$afterVerify);
108		}
109
110		/**
111		* @param Map $objectModel
112		* @throws InvalidOperationException
113		* @throws \ReflectionException
114		*/
115		private function implement(Map $objectModel)
116		{
117		/** @var SimpleMetadataProvider $meta */
118		$meta = App::make('metadata');
119		$namespace = $meta->getContainerNamespace().'.';
120
121		$entities = $objectModel->getEntities();
122		foreach ($entities as $entity) {
123		$baseType = null;
124		$className = $entity->getClassName();
125		$entityName = $entity->getName();
126		$pluralName = Str::plural($entityName);
127		$entityType = $meta->addEntityType(new \ReflectionClass($className), $entityName, null, false, $baseType);
128		if ($entityType->hasBaseType() !== isset($baseType)) {
129		throw new InvalidOperationException('');
130		}
131		$entity->setOdataResourceType($entityType);
132		$this->implementProperties($entity);
133		$meta->addResourceSet($pluralName, $entityType);
134		$meta->oDataEntityMap[$className] = $meta->oDataEntityMap[$namespace.$entityName];
135		}
136		$metaCount = count($meta->oDataEntityMap);
137		$entityCount = count($entities);
138		$expected = 2 * $entityCount;
139		if ($metaCount != $expected) {
140		$msg = 'Expected ' . $expected . ' items, actually got '.$metaCount;
141		throw new InvalidOperationException($msg);
142		}
143
144		if (0 === count($objectModel->getAssociations())) {
145		return;
146		}
147		$assoc = $objectModel->getAssociations();
148		foreach ($assoc as $association) {
149		if (!$association->isOk()) {
150		throw new InvalidOperationException('');
151		}
152		$this->implementAssociationsMonomorphic($objectModel, $association);
153		}
154		$this->handleCustomFunction($objectModel, self::$afterImplement);
155		}
156
157		/**
158		* @param Map $objectModel
159		* @param AssociationMonomorphic $associationUnderHammer
160		* @throws InvalidOperationException
161		* @throws \ReflectionException
162		*/
163		private function implementAssociationsMonomorphic(Map $objectModel, AssociationMonomorphic $associationUnderHammer)
164		{
165		/** @var SimpleMetadataProvider $meta */
166		$meta = App::make('metadata');
167		$first = $associationUnderHammer->getFirst();
168		$last = $associationUnderHammer->getLast();
169		switch ($associationUnderHammer->getAssociationType()) {
170		case AssociationType::NULL_ONE_TO_NULL_ONE():
171		case AssociationType::NULL_ONE_TO_ONE():
172		case AssociationType::ONE_TO_ONE():
173		$meta->addResourceReferenceSinglePropertyBidirectional(
174		$objectModel->getEntities()[$first->getBaseType()]->getOdataResourceType(),
175		$objectModel->getEntities()[$last->getBaseType()]->getOdataResourceType(),
176		$first->getRelationName(),
177		$last->getRelationName()
178		);
179		break;
180		case AssociationType::NULL_ONE_TO_MANY():
181		case AssociationType::ONE_TO_MANY():
182		if ($first->getMultiplicity() == AssociationStubRelationType::MANY()) {
183		$oneSide = $last;
184		$manySide = $first;
185		} else {
186		$oneSide = $first;
187		$manySide = $last;
188		}
189		$meta->addResourceReferencePropertyBidirectional(
190		$objectModel->getEntities()[$oneSide->getBaseType()]->getOdataResourceType(),
191		$objectModel->getEntities()[$manySide->getBaseType()]->getOdataResourceType(),
192		$oneSide->getRelationName(),
193		$manySide->getRelationName()
194		);
195		break;
196		case AssociationType::MANY_TO_MANY():
197		$meta->addResourceSetReferencePropertyBidirectional(
198		$objectModel->getEntities()[$first->getBaseType()]->getOdataResourceType(),
199		$objectModel->getEntities()[$last->getBaseType()]->getOdataResourceType(),
200		$first->getRelationName(),
201		$last->getRelationName()
202		);
203		}
204		}
205
206		/**
207		* @param EntityGubbins $unifiedEntity
208		* @throws InvalidOperationException
209		* @throws \ReflectionException
210		*/
211		private function implementProperties(EntityGubbins $unifiedEntity)
212		{
213		/** @var SimpleMetadataProvider $meta */
214		$meta = App::make('metadata');
215		$odataEntity = $unifiedEntity->getOdataResourceType();
216		$keyFields = $unifiedEntity->getKeyFields();
217		/** @var EntityField[] $fields */
218		$fields = array_diff_key($unifiedEntity->getFields(), $keyFields);
219		foreach ($keyFields as $keyField) {
220		$meta->addKeyProperty($odataEntity, $keyField->getName(), $keyField->getEdmFieldType());
221		}
222
223		foreach ($fields as $field) {
224		if ($field->getPrimitiveType() == 'blob') {
225		$odataEntity->setMediaLinkEntry(true);
226		$streamInfo = new ResourceStreamInfo($field->getName());
227		$odataEntity->addNamedStream($streamInfo);
228		continue;
229		}
230
231		$default = $field->getDefaultValue();
232		$isFieldBool = TypeCode::BOOLEAN() == $field->getEdmFieldType();
233		$default = $isFieldBool ? ($default ? 'true' : 'false') : strval($default);
234
235		$meta->addPrimitiveProperty(
236		$odataEntity,
237		$field->getName(),
238		$field->getEdmFieldType(),
239		$field->getFieldType() == EntityFieldType::PRIMITIVE_BAG(),
240		$default,
241		$field->getIsNullable()
242		);
243		}
244		}
245
246		/**
247		* Bootstrap the application services. Post-boot.
248		*
249		* @throws InvalidOperationException
250		* @throws \ReflectionException
251		* @throws \Doctrine\DBAL\DBALException
252		* @return void
253		*/
254		public function boot()
255		{
256		App::forgetInstance('metadata');
257		App::forgetInstance('objectmap');
258		$this->relationHolder = new MetadataGubbinsHolder();
259
260		self::$metaNAMESPACE = env('ODataMetaNamespace', 'Data');
261		// If we aren't migrated, there's no DB tables to pull metadata _from_, so bail out early
262		try {
263		if (!Schema::hasTable(config('database.migrations'))) {
264		return;
265		}
266		} catch (\Exception $e) {
267		return;
268		}
269
270		$isCaching = true === $this->getIsCaching();
271		$meta = Cache::get('metadata');
272		$objectMap = Cache::get('objectmap');
273		$hasCache = null != $meta && null != $objectMap;
274
275		if ($isCaching && $hasCache) {
276		App::instance('metadata', $meta);
277		App::instance('objectmap', $objectMap);
278		self::$isBooted = true;
279		return;
280		}
281		$meta = App::make('metadata');
282
283		$modelNames = $this->getCandidateModels();
284		$objectModel = $this->extract($modelNames);
285		$objectModel = $this->unify($objectModel);
286		$this->verify($objectModel);
287		$this->implement($objectModel);
288		$this->completedObjectMap = $objectModel;
289		$key = 'metadata';
290		$objKey = 'objectmap';
291		$this->handlePostBoot($isCaching, $hasCache, $key, $meta);
292		$this->handlePostBoot($isCaching, $hasCache, $objKey, $objectModel);
293		self::$isBooted = true;
294		}
295
296		/**
297		* Register the application services. Boot-time only.
298		*
299		* @return void
300		*/
301		public function register()
302		{
303		$this->app->/* @scrutinizer ignore-call */singleton('metadata', function () {
304		return new SimpleMetadataProvider('Data', self::$metaNAMESPACE);
305		});
306		$this->app->/* @scrutinizer ignore-call */singleton('objectmap', function () {
307		return new Map();
308		});
309		}
310
311		/**
312		* @return array
313		*/
314		protected function getCandidateModels()
315		{
316		$classes = $this->getClassMap();
317		$ends = [];
318		$startName = $this->getAppNamespace();
319		foreach ($classes as $name) {
320		if (Str::startsWith($name, $startName)) {
321		if (in_array('AlgoWeb\\PODataLaravel\\Models\\MetadataTrait', class_uses($name))) {
322		if (is_subclass_of($name, '\\Illuminate\\Database\\Eloquent\\Model')) {
323		$ends[] = $name;
324		}
325		}
326		}
327		}
328		return $ends;
329		}
330
331		/**
332		* @return MetadataGubbinsHolder
333		*/
334		public function getRelationHolder()
335		{
336		return $this->relationHolder;
337		}
338
339		/**
340		* Resolve possible reverse relation property names.
341		*
342		* @param Model $source
343		* @param $propName
344		* @throws InvalidOperationException
345		* @return null\|string
346		* @internal param Model $target
347		*/
348		public function resolveReverseProperty(Model $source, $propName)
349		{
350		if (!is_string($propName)) {
351		throw new InvalidOperationException('Property name must be string');
352		}
353		$entity = $this->getObjectMap()->resolveEntity(get_class($source));
354		if (null === $entity) {
355		$msg = 'Source model not defined';
356		throw new \InvalidArgumentException($msg);
357		}
358		$association = $entity->resolveAssociation($propName);
359
360		if (null === $association) {
361		return null;
362		}
363		$isFirst = $propName === $association->getFirst()->getRelationName();
364		if (!$isFirst) {
365		return $association->getFirst()->getRelationName();
366		}
367
368		if (!$association instanceof AssociationMonomorphic) {
369		throw new InvalidOperationException('');
370		}
371		return $association->getLast()->getRelationName();
372		}
373
374		public function isRunningInArtisan()
375		{
376		return App::runningInConsole() && !App::runningUnitTests();
377		}
378		}
379

Algo-Web / POData-Laravel

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MetadataProvider::extract() A

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