LaravelReadQuery::applyFiltering() - Code Metrics - Inspection of "WIP: Non public type hints" - Algo-Web/POData-Laravel - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Pull Request — master (#214)

by Alex

created 2020-02-20 16:36 UTC

LaravelReadQuery::applyFiltering() A

↳ Parent: LaravelReadQuery

Complexity

Conditions	5
Paths	4

Size

Total Lines	56
Code Lines	31

Duplication

Lines	0
Ratio	0 %

Importance

Changes	3
Bugs	0	Features	0

Metric	Value
eloc	31
c	3
b	0
f	0
dl	0
loc	56
rs	9.1128
cc	5
nc	4
nop	6

How to fix Long Method

<?php

namespace AlgoWeb\PODataLaravel\Query;

use AlgoWeb\PODataLaravel\Enums\ActionVerb;
use AlgoWeb\PODataLaravel\Models\MetadataTrait;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Database\Eloquent\Relations\Relation;
use Illuminate\Support\Facades\App;
use POData\Common\InvalidOperationException;
use POData\Common\ODataException;
use POData\Providers\Metadata\ResourceProperty;
use POData\Providers\Metadata\ResourceSet;
use POData\Providers\Query\QueryResult;
use POData\Providers\Query\QueryType;
use POData\UriProcessor\QueryProcessor\ExpressionParser\FilterInfo;
use POData\UriProcessor\QueryProcessor\OrderByParser\InternalOrderByInfo;
use POData\UriProcessor\QueryProcessor\SkipTokenParser\SkipTokenInfo;
use POData\UriProcessor\ResourcePathProcessor\SegmentParser\KeyDescriptor;
use Symfony\Component\Process\Exception\InvalidArgumentException;

class LaravelReadQuery extends LaravelBaseQuery
{
    use LaravelReadQueryUtilityTrait;

    /**
     * Gets collection of entities belongs to an entity set
     * IE: http://host/EntitySet
     *  http://host/EntitySet?$skip=10&$top=5&filter=Prop gt Value.
     *
     * @param QueryType                $queryType            Is this is a query for a count, entities,
     *                                                       or entities-with-count?
     * @param ResourceSet              $resourceSet          The entity set containing the entities to fetch
     * @param FilterInfo|null          $filterInfo           The $filter parameter of the OData query.  NULL if absent
     * @param null|InternalOrderByInfo $orderBy              sorted order if we want to get the data in some
     *                                                       specific order
     * @param int|null                 $top                  number of records which need to be retrieved
     * @param int|null                 $skip                 number of records which need to be skipped
     * @param SkipTokenInfo|null       $skipToken            value indicating what records to skip
     * @param string[]|null            $eagerLoad            array of relations to eager load
     * @param Model|Relation|null      $sourceEntityInstance Starting point of query
     *
     * @throws InvalidArgumentException
     * @throws InvalidOperationException
     * @throws \ReflectionException
     * @throws ODataException
     * @return QueryResult
     */
    public function getResourceSet(
        QueryType $queryType,
        ResourceSet $resourceSet,
        FilterInfo $filterInfo = null,
        $orderBy = null,
        $top = null,
        $skip = null,
        SkipTokenInfo $skipToken = null,
        array $eagerLoad = null,
        $sourceEntityInstance = null
    ) {
        $rawLoad = $this->processEagerLoadList($eagerLoad);

        $sourceEntityInstance = $this->checkSourceInstance($sourceEntityInstance, $resourceSet);

        /** @var MetadataTrait $model */
        $model = $sourceEntityInstance instanceof Model ? $sourceEntityInstance : $sourceEntityInstance->getRelated();
        $modelLoad = $model->getEagerLoad();
        $tableName = $model->getTable();
        $rawLoad = array_values(array_unique(array_merge($rawLoad, $modelLoad)));

        $checkInstance = $sourceEntityInstance instanceof Model ? $sourceEntityInstance : null;
        $this->checkAuth($sourceEntityInstance, $checkInstance);

        $result          = new QueryResult();
        $result->results = null;
        $result->count   = null;

        $sourceEntityInstance = $this->buildOrderBy($sourceEntityInstance, $tableName, $orderBy);

        // throttle up for trench run
        if (null != $skipToken) {
            $sourceEntityInstance = $this->processSkipToken($skipToken, $sourceEntityInstance);
        }

        if (!isset($skip)) {
            $skip = 0;
        }
        if (!isset($top)) {
            $top = PHP_INT_MAX;
        }

        $nullFilter = !isset($filterInfo);
        $isvalid = null;
        if (isset($filterInfo)) {
            $method = 'return ' . $filterInfo->getExpressionAsString() . ';';
            $clln = $resourceSet->getResourceType()->getName();
            $isvalid = function ($inputD) use ($clln, $method) {
                $$clln = $inputD;
                return eval($method);

            };
        }

        list($bulkSetCount, $resultSet, $resultCount, $skip) = $this->applyFiltering(
            $sourceEntityInstance, $nullFilter, $rawLoad, $top, $skip, $isvalid
        );

        if (isset($top)) {
            $resultSet = $resultSet->take($top);
        }

        $this->packageResourceSetResults($queryType, $skip, $result, $resultSet, $resultCount, $bulkSetCount);
        return $result;
    }

    /**
     * Get related resource set for a resource
     * IE: http://host/EntitySet(1L)/NavigationPropertyToCollection
     * http://host/EntitySet?$expand=NavigationPropertyToCollection.
     *
     * @param QueryType          $queryType            Is this is a query for a count, entities, or entities-with-count
     * @param ResourceSet        $sourceResourceSet    The entity set containing the source entity
     * @param Model              $sourceEntityInstance The source entity instance
     * @param ResourceSet        $targetResourceSet    The resource set pointed to by the navigation property
     * @param ResourceProperty   $targetProperty       The navigation property to retrieve
     * @param FilterInfo|null    $filter               The $filter parameter of the OData query.  NULL if none specified
     * @param mixed|null         $orderBy              sorted order if we want to get the data in some specific order
     * @param int|null           $top                  number of records which need to be retrieved
     * @param int|null           $skip                 number of records which need to be skipped
     * @param SkipTokenInfo|null $skipToken            value indicating what records to skip
     *
     * @throws InvalidOperationException
     * @throws ODataException
     * @throws \ReflectionException
     * @return QueryResult
     */
    public function getRelatedResourceSet(
        QueryType $queryType,
        ResourceSet $sourceResourceSet,
        Model $sourceEntityInstance,
        /* @noinspection PhpUnusedParameterInspection */
        ResourceSet $targetResourceSet,
        ResourceProperty $targetProperty,
        FilterInfo $filter = null,
        $orderBy = null,
        $top = null,
        $skip = null,
        SkipTokenInfo $skipToken = null
    ) {
        $this->checkAuth($sourceEntityInstance);

        $propertyName = $targetProperty->getName();
        /** @var Relation $results */
        $results = $sourceEntityInstance->$propertyName();

        return $this->getResourceSet(
            $queryType,
            $sourceResourceSet,
            $filter,
            $orderBy,
            $top,
            $skip,
            $skipToken,
            null,
            $results
        );
    }

    /**
     * Gets an entity instance from an entity set identified by a key
     * IE: http://host/EntitySet(1L)
     * http://host/EntitySet(KeyA=2L,KeyB='someValue').
     *
     * @param ResourceSet        $resourceSet   The entity set containing the entity to fetch
     * @param KeyDescriptor|null $keyDescriptor The key identifying the entity to fetch
     * @param string[]|null      $eagerLoad     array of relations to eager load
     *
     * @throws \Exception;
     * @return Model|null  Returns entity instance if found else null
     */
    public function getResourceFromResourceSet(
        ResourceSet $resourceSet,
        KeyDescriptor $keyDescriptor = null,
        array $eagerLoad = null
    ) {
        return $this->getResource($resourceSet, $keyDescriptor, [], $eagerLoad);
    }


    /**
     * Common method for getResourceFromRelatedResourceSet() and getResourceFromResourceSet().
     *
     * @param ResourceSet|null    $resourceSet
     * @param KeyDescriptor|null  $keyDescriptor
     * @param Model|Relation|null $sourceEntityInstance Starting point of query
     * @param array               $whereCondition
     * @param string[]|null       $eagerLoad            array of relations to eager load
     *
     * @throws \Exception
     * @return Model|null
     */
    public function getResource(
        ResourceSet $resourceSet = null,
        KeyDescriptor $keyDescriptor = null,
        array $whereCondition = [],
        array $eagerLoad = null,
        $sourceEntityInstance = null
    ) {
        if (null == $resourceSet && null == $sourceEntityInstance) {
            $msg = 'Must supply at least one of a resource set and source entity.';
            throw new \Exception($msg);
        }

        $sourceEntityInstance = $this->checkSourceInstance($sourceEntityInstance, $resourceSet);

        $this->checkAuth($sourceEntityInstance);
        $modelLoad = null;
        if ($sourceEntityInstance instanceof Model) {
            $modelLoad = $sourceEntityInstance->getEagerLoad();
        } elseif ($sourceEntityInstance instanceof Relation) {
            /** @var MetadataTrait $model */
            $model = $sourceEntityInstance->getRelated();
            $modelLoad = $model->getEagerLoad();
        }
        if (!(isset($modelLoad))) {
            throw new InvalidOperationException('');
        }

        $this->processKeyDescriptor($sourceEntityInstance, $keyDescriptor);
        foreach ($whereCondition as $fieldName => $fieldValue) {
            $sourceEntityInstance = $sourceEntityInstance->where($fieldName, $fieldValue);
        }

        $sourceEntityInstance = $sourceEntityInstance->get();
        $sourceCount = $sourceEntityInstance->count();
        if (0 == $sourceCount) {
            return null;
        }
        $result = $sourceEntityInstance->first();

        return $result;
    }

    /**
     * Get related resource for a resource
     * IE: http://host/EntitySet(1L)/NavigationPropertyToSingleEntity
     * http://host/EntitySet?$expand=NavigationPropertyToSingleEntity.
     *
     * @param ResourceSet      $sourceResourceSet    The entity set containing the source entity
     * @param Model            $sourceEntityInstance the source entity instance
     * @param ResourceSet      $targetResourceSet    The entity set containing the entity pointed to by the nav property
     * @param ResourceProperty $targetProperty       The navigation property to fetch
     *
     * @throws ODataException
     * @throws InvalidOperationException
     * @throws \ReflectionException
     * @return Model|null                The related resource if found else null
     */
    public function getRelatedResourceReference(
        /* @noinspection PhpUnusedParameterInspection */
        ResourceSet $sourceResourceSet,
        Model $sourceEntityInstance,
        ResourceSet $targetResourceSet,
        ResourceProperty $targetProperty
    ) {
        $this->checkAuth($sourceEntityInstance);

        $propertyName = $targetProperty->getName();
        $propertyName = $this->getLaravelRelationName($propertyName);
        /** @var Model|null $result */
        $result = $sourceEntityInstance->$propertyName()->first();
        if (null === $result) {
            return null;
        }
        if ($targetProperty->getResourceType()->getInstanceType()->getName() != get_class($result)) {
            return null;
        }
        return $result;
    }

    /**
     * Gets a related entity instance from an entity set identified by a key
     * IE: http://host/EntitySet(1L)/NavigationPropertyToCollection(33).
     *
     * @param ResourceSet      $sourceResourceSet    The entity set containing the source entity
     * @param Model            $sourceEntityInstance the source entity instance
     * @param ResourceSet      $targetResourceSet    The entity set containing the entity to fetch
     * @param ResourceProperty $targetProperty       the metadata of the target property
     * @param KeyDescriptor    $keyDescriptor        The key identifying the entity to fetch
     *
     * @throws InvalidOperationException
     * @throws \Exception
     * @return Model|null                Returns entity instance if found else null
     */
    public function getResourceFromRelatedResourceSet(
        /* @noinspection PhpUnusedParameterInspection */
        ResourceSet $sourceResourceSet,
        Model $sourceEntityInstance,
        ResourceSet $targetResourceSet,
        ResourceProperty $targetProperty,
        KeyDescriptor $keyDescriptor
    ) {
        $propertyName = $targetProperty->getName();
        if (!method_exists($sourceEntityInstance, $propertyName)) {
            $msg = 'Relation method, ' . $propertyName . ', does not exist on supplied entity.';
            throw new InvalidArgumentException($msg);
        }
        // take key descriptor and turn it into where clause here, rather than in getResource call
        /** @var Relation $sourceEntityInstance */
        $sourceEntityInstance = $sourceEntityInstance->$propertyName();
        $this->processKeyDescriptor($sourceEntityInstance, $keyDescriptor);
        $result = $this->getResource(null, null, [], [], $sourceEntityInstance);
        if (!(null == $result || $result instanceof Model)) {

            $msg = 'GetResourceFromRelatedResourceSet must return an entity or null';
            throw new InvalidOperationException($msg);
        }
        return $result;
    }

    /**
     * @param Model|Relation|null $sourceEntityInstance
     * @param null|mixed          $checkInstance
     *
     * @throws ODataException
     */
    private function checkAuth($sourceEntityInstance, $checkInstance = null)
    {
        $check = array_reduce([$sourceEntityInstance, $checkInstance], function ($carry, $item) {
            if ($item instanceof Model || $item instanceof Relation) {
                return $item;
            }
        }, null);
        $sourceName = null !== $check ? get_class($check) : null;
        if (!$this->getAuth()->canAuth(ActionVerb::READ(), $sourceName, $check)) {
            throw new ODataException('Access denied', 403);
        }
    }

    /**
     * @param Model|Builder $sourceEntityInstance
     * @param bool $nullFilter
     * @param array $rawLoad
     * @param int $top
     * @param int $skip
     * @param  callable|null $isvalid
     * @return array
     * @throws InvalidOperationException
     */
    protected function applyFiltering(
        $sourceEntityInstance,
        bool $nullFilter,
        array $rawLoad = [],
        int $top = PHP_INT_MAX,
        int $skip = 0,
        callable $isvalid = null
    ) {
        $bulkSetCount = $sourceEntityInstance->count();
        $bigSet = 20000 < $bulkSetCount;

        if ($nullFilter) {
            // default no-filter case, palm processing off to database engine - is a lot faster
            $resultSet = $sourceEntityInstance->skip($skip)->take($top)->with($rawLoad)
                ->get();
            $resultCount = $bulkSetCount;
        } elseif ($bigSet) {
            if (!(isset($isvalid))) {
                $msg = 'Filter closure not set';
                throw new InvalidOperationException($msg);
            }
            $resultSet = new Collection([]);
            $rawCount = 0;
            $rawTop = min($top, $bulkSetCount);

            // loop thru, chunk by chunk, to reduce chances of exhausting memory
            $sourceEntityInstance->chunk(
                5000,
                function (Collection $results) use ($isvalid, &$skip, &$resultSet, &$rawCount, $rawTop) {
                    // apply filter
                    $results = $results->filter($isvalid);
                    // need to iterate through full result set to find count of items matching filter,
                    // so we can't bail out early
                    $rawCount += $results->count();
                    // now bolt on filtrate to accumulating result set if we haven't accumulated enough bitz
                    if ($rawTop > $resultSet->count() + $skip) {
                        $resultSet = collect(array_merge($resultSet->all(), $results->all()));
                        $sliceAmount = min($skip, $resultSet->count());
                        $resultSet = $resultSet->slice($sliceAmount);
                        $skip -= $sliceAmount;
                    }
                }
            );

            // clean up residual to-be-skipped records
            $resultSet = $resultSet->slice($skip);
            $resultCount = $rawCount;
        } else {
            /** @var Collection $resultSet */
            $resultSet = $sourceEntityInstance->with($rawLoad)->get();
            $resultSet = $resultSet->filter($isvalid);
            $resultCount = $resultSet->count();

            $resultSet = $resultSet->slice($skip);
        }
        return [$bulkSetCount, $resultSet, $resultCount, $skip];
    }

    /**
     * @param $sourceEntityInstance
     * @param string $tableName
     * @param InternalOrderByInfo|null $orderBy
     * @return mixed
     */
    protected function buildOrderBy($sourceEntityInstance, string $tableName, InternalOrderByInfo $orderBy = null)
    {
        if (null != $orderBy) {
            foreach ($orderBy->getOrderByInfo()->getOrderByPathSegments() as $order) {
                foreach ($order->getSubPathSegments() as $subOrder) {
                    $subName = $subOrder->getName();
                    $subName = $tableName . '.' . $subName;
                    $sourceEntityInstance = $sourceEntityInstance->orderBy(
                        $subName,
                        $order->isAscending() ? 'asc' : 'desc'
                    );
                }
            }
        }
        return $sourceEntityInstance;
    }

    /**
     * @param QueryType $queryType
     * @param int $skip
     * @param QueryResult $result
     * @param $resultSet
     * @param int $resultCount
     * @param int $bulkSetCount
     */
    protected function packageResourceSetResults(
        QueryType $queryType,
        int $skip,
        QueryResult $result,
        $resultSet,
        int $resultCount,
        int $bulkSetCount
    ) {
        $qVal = $queryType;
        if (QueryType::ENTITIES() == $qVal || QueryType::ENTITIES_WITH_COUNT() == $qVal) {
            $result->results = [];
            foreach ($resultSet as $res) {
                $result->results[] = $res;
            }
        }
        if (QueryType::COUNT() == $qVal || QueryType::ENTITIES_WITH_COUNT() == $qVal) {
            $result->count = $resultCount;
        }
        $hazMore = $bulkSetCount > $skip + count($resultSet);
        $result->hasMore = $hazMore;
    }
}


1			<?php
2
3			namespace AlgoWeb\PODataLaravel\Query;
4
5			use AlgoWeb\PODataLaravel\Enums\ActionVerb;
6			use AlgoWeb\PODataLaravel\Models\MetadataTrait;
7			use Illuminate\Database\Eloquent\Builder;
8			use Illuminate\Database\Eloquent\Collection;
9			use Illuminate\Database\Eloquent\Model;
10			use Illuminate\Database\Eloquent\Relations\Relation;
11			use Illuminate\Support\Facades\App;
12			use POData\Common\InvalidOperationException;
13			use POData\Common\ODataException;
14			use POData\Providers\Metadata\ResourceProperty;
15			use POData\Providers\Metadata\ResourceSet;
16			use POData\Providers\Query\QueryResult;
17			use POData\Providers\Query\QueryType;
18			use POData\UriProcessor\QueryProcessor\ExpressionParser\FilterInfo;
19			use POData\UriProcessor\QueryProcessor\OrderByParser\InternalOrderByInfo;
20			use POData\UriProcessor\QueryProcessor\SkipTokenParser\SkipTokenInfo;
21			use POData\UriProcessor\ResourcePathProcessor\SegmentParser\KeyDescriptor;
22			use Symfony\Component\Process\Exception\InvalidArgumentException;
23
24			class LaravelReadQuery extends LaravelBaseQuery
25			{
26			use LaravelReadQueryUtilityTrait;
27
28			/**
29			* Gets collection of entities belongs to an entity set
30			* IE: http://host/EntitySet
31			* http://host/EntitySet?$skip=10&$top=5&filter=Prop gt Value.
32			*
33			* @param QueryType $queryType Is this is a query for a count, entities,
34			* or entities-with-count?
35			* @param ResourceSet $resourceSet The entity set containing the entities to fetch
36			* @param FilterInfo\|null $filterInfo The $filter parameter of the OData query. NULL if absent
37			* @param null\|InternalOrderByInfo $orderBy sorted order if we want to get the data in some
38			* specific order
39			* @param int\|null $top number of records which need to be retrieved
40			* @param int\|null $skip number of records which need to be skipped
41			* @param SkipTokenInfo\|null $skipToken value indicating what records to skip
42			* @param string[]\|null $eagerLoad array of relations to eager load
43			* @param Model\|Relation\|null $sourceEntityInstance Starting point of query
44			*
45			* @throws InvalidArgumentException
46			* @throws InvalidOperationException
47			* @throws \ReflectionException
48			* @throws ODataException
49			* @return QueryResult
50			*/
51			public function getResourceSet(
52			QueryType $queryType,
53			ResourceSet $resourceSet,
54			FilterInfo $filterInfo = null,
55			$orderBy = null,
56			$top = null,
57			$skip = null,
58			SkipTokenInfo $skipToken = null,
59			array $eagerLoad = null,
60			$sourceEntityInstance = null
61			) {
62			$rawLoad = $this->processEagerLoadList($eagerLoad);
63
64			$sourceEntityInstance = $this->checkSourceInstance($sourceEntityInstance, $resourceSet);
65
66			/** @var MetadataTrait $model */
67			$model = $sourceEntityInstance instanceof Model ? $sourceEntityInstance : $sourceEntityInstance->getRelated();
68			$modelLoad = $model->getEagerLoad();
69			$tableName = $model->getTable();
70			$rawLoad = array_values(array_unique(array_merge($rawLoad, $modelLoad)));
71
72			$checkInstance = $sourceEntityInstance instanceof Model ? $sourceEntityInstance : null;
73			$this->checkAuth($sourceEntityInstance, $checkInstance);
74
75			$result = new QueryResult();
76			$result->results = null;
77			$result->count = null;
78
79			$sourceEntityInstance = $this->buildOrderBy($sourceEntityInstance, $tableName, $orderBy);
80
81			// throttle up for trench run
82			if (null != $skipToken) {
83			$sourceEntityInstance = $this->processSkipToken($skipToken, $sourceEntityInstance);
84			}
85
86			if (!isset($skip)) {
87			$skip = 0;
88			}
89			if (!isset($top)) {
90			$top = PHP_INT_MAX;
91			}
92
93			$nullFilter = !isset($filterInfo);
94			$isvalid = null;
95			if (isset($filterInfo)) {
96			$method = 'return ' . $filterInfo->getExpressionAsString() . ';';
97			$clln = $resourceSet->getResourceType()->getName();
98			$isvalid = function ($inputD) use ($clln, $method) {
99			$$clln = $inputD;
100			return eval($method);
			0 ignored issues – show introduced 2019-09-30 01:19 UTC by Report Bug Copy Issue Report The use of eval() is discouraged. Loading history...
101			};
102			}
103
104			list($bulkSetCount, $resultSet, $resultCount, $skip) = $this->applyFiltering(
105			$sourceEntityInstance, $nullFilter, $rawLoad, $top, $skip, $isvalid
106			);
107
108			if (isset($top)) {
109			$resultSet = $resultSet->take($top);
110			}
111
112			$this->packageResourceSetResults($queryType, $skip, $result, $resultSet, $resultCount, $bulkSetCount);
113			return $result;
114			}
115
116			/**
117			* Get related resource set for a resource
118			* IE: http://host/EntitySet(1L)/NavigationPropertyToCollection
119			* http://host/EntitySet?$expand=NavigationPropertyToCollection.
120			*
121			* @param QueryType $queryType Is this is a query for a count, entities, or entities-with-count
122			* @param ResourceSet $sourceResourceSet The entity set containing the source entity
123			* @param Model $sourceEntityInstance The source entity instance
124			* @param ResourceSet $targetResourceSet The resource set pointed to by the navigation property
125			* @param ResourceProperty $targetProperty The navigation property to retrieve
126			* @param FilterInfo\|null $filter The $filter parameter of the OData query. NULL if none specified
127			* @param mixed\|null $orderBy sorted order if we want to get the data in some specific order
128			* @param int\|null $top number of records which need to be retrieved
129			* @param int\|null $skip number of records which need to be skipped
130			* @param SkipTokenInfo\|null $skipToken value indicating what records to skip
131			*
132			* @throws InvalidOperationException
133			* @throws ODataException
134			* @throws \ReflectionException
135			* @return QueryResult
136			*/
137			public function getRelatedResourceSet(
138			QueryType $queryType,
139			ResourceSet $sourceResourceSet,
140			Model $sourceEntityInstance,
141			/* @noinspection PhpUnusedParameterInspection */
142			ResourceSet $targetResourceSet,
143			ResourceProperty $targetProperty,
144			FilterInfo $filter = null,
145			$orderBy = null,
146			$top = null,
147			$skip = null,
148			SkipTokenInfo $skipToken = null
149			) {
150			$this->checkAuth($sourceEntityInstance);
151
152			$propertyName = $targetProperty->getName();
153			/** @var Relation $results */
154			$results = $sourceEntityInstance->$propertyName();
155
156			return $this->getResourceSet(
157			$queryType,
158			$sourceResourceSet,
159			$filter,
160			$orderBy,
161			$top,
162			$skip,
163			$skipToken,
164			null,
165			$results
166			);
167			}
168
169			/**
170			* Gets an entity instance from an entity set identified by a key
171			* IE: http://host/EntitySet(1L)
172			* http://host/EntitySet(KeyA=2L,KeyB='someValue').
173			*
174			* @param ResourceSet $resourceSet The entity set containing the entity to fetch
175			* @param KeyDescriptor\|null $keyDescriptor The key identifying the entity to fetch
176			* @param string[]\|null $eagerLoad array of relations to eager load
177			*
178			* @throws \Exception;
179			* @return Model\|null Returns entity instance if found else null
180			*/
181			public function getResourceFromResourceSet(
182			ResourceSet $resourceSet,
183			KeyDescriptor $keyDescriptor = null,
184			array $eagerLoad = null
185			) {
186			return $this->getResource($resourceSet, $keyDescriptor, [], $eagerLoad);
187			}
188
189
190			/**
191			* Common method for getResourceFromRelatedResourceSet() and getResourceFromResourceSet().
192			*
193			* @param ResourceSet\|null $resourceSet
194			* @param KeyDescriptor\|null $keyDescriptor
195			* @param Model\|Relation\|null $sourceEntityInstance Starting point of query
196			* @param array $whereCondition
197			* @param string[]\|null $eagerLoad array of relations to eager load
198			*
199			* @throws \Exception
200			* @return Model\|null
201			*/
202			public function getResource(
203			ResourceSet $resourceSet = null,
204			KeyDescriptor $keyDescriptor = null,
205			array $whereCondition = [],
206			array $eagerLoad = null,
207			$sourceEntityInstance = null
208			) {
209			if (null == $resourceSet && null == $sourceEntityInstance) {
210			$msg = 'Must supply at least one of a resource set and source entity.';
211			throw new \Exception($msg);
212			}
213
214			$sourceEntityInstance = $this->checkSourceInstance($sourceEntityInstance, $resourceSet);
215
216			$this->checkAuth($sourceEntityInstance);
217			$modelLoad = null;
218			if ($sourceEntityInstance instanceof Model) {
219			$modelLoad = $sourceEntityInstance->getEagerLoad();
220			} elseif ($sourceEntityInstance instanceof Relation) {
221			/** @var MetadataTrait $model */
222			$model = $sourceEntityInstance->getRelated();
223			$modelLoad = $model->getEagerLoad();
224			}
225			if (!(isset($modelLoad))) {
226			throw new InvalidOperationException('');
227			}
228
229			$this->processKeyDescriptor($sourceEntityInstance, $keyDescriptor);
230			foreach ($whereCondition as $fieldName => $fieldValue) {
231			$sourceEntityInstance = $sourceEntityInstance->where($fieldName, $fieldValue);
232			}
233
234			$sourceEntityInstance = $sourceEntityInstance->get();
235			$sourceCount = $sourceEntityInstance->count();
236			if (0 == $sourceCount) {
237			return null;
238			}
239			$result = $sourceEntityInstance->first();
240
241			return $result;
242			}
243
244			/**
245			* Get related resource for a resource
246			* IE: http://host/EntitySet(1L)/NavigationPropertyToSingleEntity
247			* http://host/EntitySet?$expand=NavigationPropertyToSingleEntity.
248			*
249			* @param ResourceSet $sourceResourceSet The entity set containing the source entity
250			* @param Model $sourceEntityInstance the source entity instance
251			* @param ResourceSet $targetResourceSet The entity set containing the entity pointed to by the nav property
252			* @param ResourceProperty $targetProperty The navigation property to fetch
253			*
254			* @throws ODataException
255			* @throws InvalidOperationException
256			* @throws \ReflectionException
257			* @return Model\|null The related resource if found else null
258			*/
259			public function getRelatedResourceReference(
260			/* @noinspection PhpUnusedParameterInspection */
261			ResourceSet $sourceResourceSet,
262			Model $sourceEntityInstance,
263			ResourceSet $targetResourceSet,
264			ResourceProperty $targetProperty
265			) {
266			$this->checkAuth($sourceEntityInstance);
267
268			$propertyName = $targetProperty->getName();
269			$propertyName = $this->getLaravelRelationName($propertyName);
270			/** @var Model\|null $result */
271			$result = $sourceEntityInstance->$propertyName()->first();
272			if (null === $result) {
273			return null;
274			}
275			if ($targetProperty->getResourceType()->getInstanceType()->getName() != get_class($result)) {
276			return null;
277			}
278			return $result;
279			}
280
281			/**
282			* Gets a related entity instance from an entity set identified by a key
283			* IE: http://host/EntitySet(1L)/NavigationPropertyToCollection(33).
284			*
285			* @param ResourceSet $sourceResourceSet The entity set containing the source entity
286			* @param Model $sourceEntityInstance the source entity instance
287			* @param ResourceSet $targetResourceSet The entity set containing the entity to fetch
288			* @param ResourceProperty $targetProperty the metadata of the target property
289			* @param KeyDescriptor $keyDescriptor The key identifying the entity to fetch
290			*
291			* @throws InvalidOperationException
292			* @throws \Exception
293			* @return Model\|null Returns entity instance if found else null
294			*/
295			public function getResourceFromRelatedResourceSet(
296			/* @noinspection PhpUnusedParameterInspection */
297			ResourceSet $sourceResourceSet,
298			Model $sourceEntityInstance,
299			ResourceSet $targetResourceSet,
300			ResourceProperty $targetProperty,
301			KeyDescriptor $keyDescriptor
302			) {
303			$propertyName = $targetProperty->getName();
304			if (!method_exists($sourceEntityInstance, $propertyName)) {
305			$msg = 'Relation method, ' . $propertyName . ', does not exist on supplied entity.';
306			throw new InvalidArgumentException($msg);
307			}
308			// take key descriptor and turn it into where clause here, rather than in getResource call
309			/** @var Relation $sourceEntityInstance */
310			$sourceEntityInstance = $sourceEntityInstance->$propertyName();
311			$this->processKeyDescriptor($sourceEntityInstance, $keyDescriptor);
312			$result = $this->getResource(null, null, [], [], $sourceEntityInstance);
313			if (!(null == $result \|\| $result instanceof Model)) {
			0 ignored issues – show introduced 2019-09-27 13:05 UTC by Report Bug Copy Issue Report `$result` is always a sub-type of `Illuminate\Database\Eloquent\Model`. Loading history...
314			$msg = 'GetResourceFromRelatedResourceSet must return an entity or null';
315			throw new InvalidOperationException($msg);
316			}
317			return $result;
318			}
319
320			/**
321			* @param Model\|Relation\|null $sourceEntityInstance
322			* @param null\|mixed $checkInstance
323			*
324			* @throws ODataException
325			*/
326			private function checkAuth($sourceEntityInstance, $checkInstance = null)
327			{
328			$check = array_reduce([$sourceEntityInstance, $checkInstance], function ($carry, $item) {
329			if ($item instanceof Model \|\| $item instanceof Relation) {
330			return $item;
331			}
332			}, null);
333			$sourceName = null !== $check ? get_class($check) : null;
334			if (!$this->getAuth()->canAuth(ActionVerb::READ(), $sourceName, $check)) {
335			throw new ODataException('Access denied', 403);
336			}
337			}
338
339			/**
340			* @param Model\|Builder $sourceEntityInstance
341			* @param bool $nullFilter
342			* @param array $rawLoad
343			* @param int $top
344			* @param int $skip
345			* @param callable\|null $isvalid
346			* @return array
347			* @throws InvalidOperationException
348			*/
349			protected function applyFiltering(
350			$sourceEntityInstance,
351			bool $nullFilter,
352			array $rawLoad = [],
353			int $top = PHP_INT_MAX,
354			int $skip = 0,
355			callable $isvalid = null
356			) {
357			$bulkSetCount = $sourceEntityInstance->count();
358			$bigSet = 20000 < $bulkSetCount;
359
360			if ($nullFilter) {
361			// default no-filter case, palm processing off to database engine - is a lot faster
362			$resultSet = $sourceEntityInstance->skip($skip)->take($top)->with($rawLoad)
363			->get();
364			$resultCount = $bulkSetCount;
365			} elseif ($bigSet) {
366			if (!(isset($isvalid))) {
367			$msg = 'Filter closure not set';
368			throw new InvalidOperationException($msg);
369			}
370			$resultSet = new Collection([]);
371			$rawCount = 0;
372			$rawTop = min($top, $bulkSetCount);
373
374			// loop thru, chunk by chunk, to reduce chances of exhausting memory
375			$sourceEntityInstance->chunk(
376			5000,
377			function (Collection $results) use ($isvalid, &$skip, &$resultSet, &$rawCount, $rawTop) {
378			// apply filter
379			$results = $results->filter($isvalid);
380			// need to iterate through full result set to find count of items matching filter,
381			// so we can't bail out early
382			$rawCount += $results->count();
383			// now bolt on filtrate to accumulating result set if we haven't accumulated enough bitz
384			if ($rawTop > $resultSet->count() + $skip) {
385			$resultSet = collect(array_merge($resultSet->all(), $results->all()));
386			$sliceAmount = min($skip, $resultSet->count());
387			$resultSet = $resultSet->slice($sliceAmount);
388			$skip -= $sliceAmount;
389			}
390			}
391			);
392
393			// clean up residual to-be-skipped records
394			$resultSet = $resultSet->slice($skip);
395			$resultCount = $rawCount;
396			} else {
397			/** @var Collection $resultSet */
398			$resultSet = $sourceEntityInstance->with($rawLoad)->get();
399			$resultSet = $resultSet->filter($isvalid);
400			$resultCount = $resultSet->count();
401
402			$resultSet = $resultSet->slice($skip);
403			}
404			return [$bulkSetCount, $resultSet, $resultCount, $skip];
405			}
406
407			/**
408			* @param $sourceEntityInstance
409			* @param string $tableName
410			* @param InternalOrderByInfo\|null $orderBy
411			* @return mixed
412			*/
413			protected function buildOrderBy($sourceEntityInstance, string $tableName, InternalOrderByInfo $orderBy = null)
414			{
415			if (null != $orderBy) {
416			foreach ($orderBy->getOrderByInfo()->getOrderByPathSegments() as $order) {
417			foreach ($order->getSubPathSegments() as $subOrder) {
418			$subName = $subOrder->getName();
419			$subName = $tableName . '.' . $subName;
420			$sourceEntityInstance = $sourceEntityInstance->orderBy(
421			$subName,
422			$order->isAscending() ? 'asc' : 'desc'
423			);
424			}
425			}
426			}
427			return $sourceEntityInstance;
428			}
429
430			/**
431			* @param QueryType $queryType
432			* @param int $skip
433			* @param QueryResult $result
434			* @param $resultSet
435			* @param int $resultCount
436			* @param int $bulkSetCount
437			*/
438			protected function packageResourceSetResults(
439			QueryType $queryType,
440			int $skip,
441			QueryResult $result,
442			$resultSet,
443			int $resultCount,
444			int $bulkSetCount
445			) {
446			$qVal = $queryType;
447			if (QueryType::ENTITIES() == $qVal \|\| QueryType::ENTITIES_WITH_COUNT() == $qVal) {
448			$result->results = [];
449			foreach ($resultSet as $res) {
450			$result->results[] = $res;
451			}
452			}
453			if (QueryType::COUNT() == $qVal \|\| QueryType::ENTITIES_WITH_COUNT() == $qVal) {
454			$result->count = $resultCount;
455			}
456			$hazMore = $bulkSetCount > $skip + count($resultSet);
457			$result->hasMore = $hazMore;
458			}
459			}
460

Algo-Web / POData-Laravel

Pull Request — master (#214)

LaravelReadQuery::applyFiltering() A

Complexity

Size

Duplication

Importance

How to fix Long Method

Long Method

Duplication Side-by-Side

Filter issues like