ResultProvider::applyCursor() - Code Metrics - Inspection of "Adds ability to calculate total count directly" - paysera/lib-pagination - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — master ( cde1e0...39b8c1 )

by Marius

created 2018-12-18 22:46 UTC

ResultProvider::applyCursor() B

↳ Parent: ResultProvider

Complexity

Conditions	6
Paths	9

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	25
CRAP Score	6

Importance

Changes

Metric	Value
dl	0
loc	36
ccs	25
cts	25
cp	1
rs	8.7217
c	0
b	0
f	0
cc	6
nc	9
nop	4
crap	6

<?php
declare(strict_types=1);

namespace Paysera\Pagination\Service\Doctrine;

use Doctrine\ORM\Query\Expr;
use Doctrine\ORM\Query\Expr\Andx;
use Doctrine\ORM\Query\Expr\Orx;
use Doctrine\ORM\Query\Expr\Comparison;
use Doctrine\ORM\QueryBuilder;
use Paysera\Pagination\Entity\Doctrine\AnalysedQuery;
use Paysera\Pagination\Entity\OrderingConfiguration;
use Paysera\Pagination\Entity\Doctrine\ConfiguredQuery;
use Paysera\Pagination\Entity\Pager;
use Paysera\Pagination\Entity\Result;
use Paysera\Pagination\Service\CursorBuilderInterface;

class ResultProvider
{
    private $queryAnalyser;
    private $cursorBuilder;

    public function __construct(QueryAnalyser $queryAnalyser, CursorBuilderInterface $cursorBuilder)
    {
        $this->queryAnalyser = $queryAnalyser;
        $this->cursorBuilder = $cursorBuilder;
    }

    public function getResultForQuery(ConfiguredQuery $configuredQuery, Pager $pager): Result
    {
        $analysedQuery = $this->queryAnalyser->analyseQuery($configuredQuery, $pager);

        $result = $this->buildResult($analysedQuery, $pager);

        if ($configuredQuery->isTotalCountNeeded()) {
            $totalCount = $this->calculateTotalCount($pager, count($result->getItems()));
            if ($totalCount === null) {
                $totalCount = $this->findCount($analysedQuery);
            }
            $result->setTotalCount($totalCount);
        }

        return $result;
    }

    public function getTotalCountForQuery(ConfiguredQuery $configuredQuery): int
    {
        $analysedQuery = $this->queryAnalyser->analyseQueryWithoutPager($configuredQuery);

        return $this->findCount($analysedQuery);
    }

    private function buildResult(AnalysedQuery $analysedQuery, Pager $pager)
    {
        $items = $this->findItems($analysedQuery, $pager);

        if (count($items) === 0) {
            return $this->buildResultForEmptyItems($analysedQuery, $pager);
        }

        $orderingConfigurations = $analysedQuery->getOrderingConfigurations();
        $previousCursor = $this->cursorBuilder->getCursorFromItem($items[0], $orderingConfigurations);
        $nextCursor = $this->cursorBuilder->getCursorFromItem($items[count($items) - 1], $orderingConfigurations);

        return (new Result())
            ->setItems($items)
            ->setPreviousCursor($previousCursor)
            ->setNextCursor($nextCursor)
            ->setHasPrevious($this->existsBeforeCursor($previousCursor, $analysedQuery))
            ->setHasNext($this->existsAfterCursor($nextCursor, $analysedQuery))
        ;
    }

    private function findItems(AnalysedQuery $analysedQuery, Pager $pager)
    {
        $pagedQueryBuilder = $this->pageQueryBuilder($analysedQuery, $pager);
        $query = $pagedQueryBuilder->getQuery();
        $items = $query->getResult();

        if ($pager->getBefore() !== null) {
            return array_reverse($items);
        }
        return $items;
    }

    private function pageQueryBuilder(AnalysedQuery $analysedQuery, Pager $pager)
    {
        $queryBuilder = $analysedQuery->cloneQueryBuilder();

        if ($pager->getLimit() !== null) {
            $queryBuilder->setMaxResults($pager->getLimit());
        }

        $orderingConfigurations = $analysedQuery->getOrderingConfigurations();
        if ($pager->getBefore() !== null) {
            $orderingConfigurations = $this->reverseOrderingDirection($orderingConfigurations);
        }

        $this->applyOrdering($queryBuilder, $orderingConfigurations);

        if ($pager->getOffset() !== null) {
            $this->applyOffset($queryBuilder, $pager->getOffset());
        } elseif ($pager->getBefore() !== null) {
            $this->applyBefore($queryBuilder, $pager->getBefore(), $analysedQuery);
        } elseif ($pager->getAfter() !== null) {
            $this->applyAfter($queryBuilder, $pager->getAfter(), $analysedQuery);
        }

        return $queryBuilder;
    }

    /**
     * @param QueryBuilder $queryBuilder
     * @param array|OrderingConfiguration[] $orderingConfigurations
     */
    private function applyOrdering(QueryBuilder $queryBuilder, array $orderingConfigurations)
    {
        foreach ($orderingConfigurations as $orderingConfiguration) {
            $queryBuilder->addOrderBy(
                $orderingConfiguration->getOrderByExpression(),
                $orderingConfiguration->isOrderAscending() ? 'ASC' : 'DESC'
            );
        }
    }

    private function applyOffset(QueryBuilder $queryBuilder, int $offset)
    {
        $queryBuilder->setFirstResult($offset);
    }

    /**
     * @param QueryBuilder $queryBuilder
     * @param string $after
     * @param AnalysedQuery $analysedQuery
     */
    private function applyAfter(QueryBuilder $queryBuilder, string $after, AnalysedQuery $analysedQuery)
    {
        $this->applyCursor($queryBuilder, $after, $analysedQuery, false);
    }

    /**
     * @param QueryBuilder $queryBuilder
     * @param string $after
     * @param AnalysedQuery $analysedQuery
     */
    private function applyBefore(QueryBuilder $queryBuilder, string $after, AnalysedQuery $analysedQuery)
    {
        $this->applyCursor($queryBuilder, $after, $analysedQuery, true);
    }

    /**
     * @param QueryBuilder $queryBuilder
     * @param string $cursor
     * @param AnalysedQuery $analysedQuery
     * @param bool $invert
     */
    private function applyCursor(QueryBuilder $queryBuilder, string $cursor, AnalysedQuery $analysedQuery, bool $invert)
    {
        $orderingConfigurations = $analysedQuery->getOrderingConfigurations();
        $parsedCursor = $this->cursorBuilder->parseCursor($cursor, count($orderingConfigurations));

        $expr = new Expr();
        $whereClause = new Orx();
        $previousConditions = new Andx();
        foreach ($orderingConfigurations as $index => $orderingConfiguration) {
            $useLargerThan = $orderingConfiguration->isOrderAscending();
            if ($invert) {
                $useLargerThan = !$useLargerThan;
            }
            $sign = $useLargerThan ? '>' : '<';
            if ($parsedCursor->isCursoredItemIncluded() && $index === count($orderingConfigurations) - 1) {
                $sign .= '=';
            }

            $currentCondition = clone $previousConditions;
            $currentCondition->add(new Comparison(
                $orderingConfiguration->getOrderByExpression(),
                $sign,
                $expr->literal($parsedCursor->getElementAtIndex($index))
            ));

            $whereClause->add($currentCondition);

            $previousConditions->add(new Comparison(
                $orderingConfiguration->getOrderByExpression(),
                '=',
                $expr->literal($parsedCursor->getElementAtIndex($index))
            ));
        }

        $queryBuilder->andWhere($whereClause);
    }

    private function buildResultForEmptyItems(AnalysedQuery $analysedQuery, Pager $pager): Result
    {
        if ($pager->getLimit() === 0) {
            return $this->buildResultForZeroLimit($analysedQuery, $pager);

        } elseif ($pager->getBefore() !== null) {
            $nextCursor = $this->cursorBuilder->invertCursorInclusion($pager->getBefore());
            return (new Result())
                ->setPreviousCursor($pager->getBefore())
                ->setNextCursor($nextCursor)
                ->setHasPrevious(false)
                ->setHasNext($this->existsAfterCursor($nextCursor, $analysedQuery))
            ;

        } elseif ($pager->getAfter() !== null) {
            $previousCursor = $this->cursorBuilder->invertCursorInclusion($pager->getAfter());
            return (new Result())
                ->setPreviousCursor($previousCursor)
                ->setNextCursor($pager->getAfter())
                ->setHasPrevious($this->existsBeforeCursor($previousCursor, $analysedQuery))
                ->setHasNext(false)
            ;

        } elseif ($pager->getOffset() !== null && $pager->getOffset() > 0) {
            return $this->buildResultForTooLargeOffset($analysedQuery);

        }

        return (new Result())
            ->setHasPrevious(false)
            ->setHasNext(false)
        ;
    }

    private function buildResultForZeroLimit(AnalysedQuery $analysedQuery, Pager $zeroLimitPager): Result
    {
        $pager = (clone $zeroLimitPager)->setLimit(1);
        $items = $this->findItems($analysedQuery, $pager);

        if (count($items) === 0) {
            return $this->buildResultForEmptyItems($analysedQuery, $pager);
        }

        $orderingConfigurations = $analysedQuery->getOrderingConfigurations();
        $previousCursor = $this->cursorBuilder->getCursorFromItem($items[0], $orderingConfigurations);
        $nextCursor = $this->cursorBuilder->buildCursorWithIncludedItem($previousCursor);

        return (new Result())
            ->setPreviousCursor($previousCursor)
            ->setNextCursor($nextCursor)
            ->setHasPrevious($this->existsBeforeCursor($previousCursor, $analysedQuery))
            ->setHasNext(true)
        ;

    }

    private function buildResultForTooLargeOffset(AnalysedQuery $analysedQuery): Result
    {
        $result = (new Result())->setHasNext(false);

        $pagerForLastElement = (new Pager())->setLimit(1);
        $modifiedAnalysedQuery = (clone $analysedQuery)->setOrderingConfigurations(
            $this->reverseOrderingDirection($analysedQuery->getOrderingConfigurations())
        );
        $items = $this->findItems($modifiedAnalysedQuery, $pagerForLastElement);
        if (count($items) === 0) {
            return $result->setHasPrevious(false);
        }

        $lastItemCursor = $this->cursorBuilder->getCursorFromItem($items[0], $modifiedAnalysedQuery->getOrderingConfigurations());
        return $result
            ->setHasPrevious(true)
            ->setPreviousCursor($this->cursorBuilder->buildCursorWithIncludedItem($lastItemCursor))
            ->setNextCursor($lastItemCursor)
        ;
    }

    /**
     * @param array|OrderingConfiguration[] $orderingConfigurations
     * @return array|OrderingConfiguration[]
     */
    private function reverseOrderingDirection(array $orderingConfigurations): array
    {
        $reversedOrderingConfigurations = [];
        foreach ($orderingConfigurations as $orderingConfiguration) {
            $reversedOrderingConfigurations[] = (clone $orderingConfiguration)
                ->setOrderAscending(!$orderingConfiguration->isOrderAscending())
            ;
        }
        return $reversedOrderingConfigurations;
    }

    private function existsBeforeCursor(string $previousCursor, AnalysedQuery $analysedQuery)

    {
        $nextPager = (new Pager())
            ->setBefore($previousCursor)
            ->setLimit(1)
        ;
        return count($this->findItems($analysedQuery, $nextPager)) > 0;
    }

    private function existsAfterCursor(string $nextCursor, AnalysedQuery $analysedQuery)

    {
        $nextPager = (new Pager())
            ->setAfter($nextCursor)
            ->setLimit(1)
        ;
        return count($this->findItems($analysedQuery, $nextPager)) > 0;
    }

    private function calculateTotalCount(Pager $filter, int $resultCount)
    {
        if (
            $filter->getOffset() !== null
            && ($filter->getLimit() === null || $resultCount < $filter->getLimit())
            && ($resultCount !== 0 || $filter->getOffset() === 0)
        ) {
            return $resultCount + $filter->getOffset();
        }

        return null;
    }

    private function findCount(AnalysedQuery $analysedQuery): int
    {
        $countQueryBuilder = $analysedQuery->cloneQueryBuilder();
        $countQueryBuilder->select(sprintf('count(%s)', $analysedQuery->getRootAlias()));
        return (int)$countQueryBuilder->getQuery()->getSingleScalarResult();
    }
}


1			<?php
2			declare(strict_types=1);
3
4			namespace Paysera\Pagination\Service\Doctrine;
5
6			use Doctrine\ORM\Query\Expr;
7			use Doctrine\ORM\Query\Expr\Andx;
8			use Doctrine\ORM\Query\Expr\Orx;
9			use Doctrine\ORM\Query\Expr\Comparison;
10			use Doctrine\ORM\QueryBuilder;
11			use Paysera\Pagination\Entity\Doctrine\AnalysedQuery;
12			use Paysera\Pagination\Entity\OrderingConfiguration;
13			use Paysera\Pagination\Entity\Doctrine\ConfiguredQuery;
14			use Paysera\Pagination\Entity\Pager;
15			use Paysera\Pagination\Entity\Result;
16			use Paysera\Pagination\Service\CursorBuilderInterface;
17
18			class ResultProvider
19			{
20			private $queryAnalyser;
21			private $cursorBuilder;
22
23	33		public function __construct(QueryAnalyser $queryAnalyser, CursorBuilderInterface $cursorBuilder)
24			{
25	33		$this->queryAnalyser = $queryAnalyser;
26	33		$this->cursorBuilder = $cursorBuilder;
27	33		}
28
29	31		public function getResultForQuery(ConfiguredQuery $configuredQuery, Pager $pager): Result
30			{
31	31		$analysedQuery = $this->queryAnalyser->analyseQuery($configuredQuery, $pager);
32
33	30		$result = $this->buildResult($analysedQuery, $pager);
34
35	30		if ($configuredQuery->isTotalCountNeeded()) {
36	2		$totalCount = $this->calculateTotalCount($pager, count($result->getItems()));
37	2		if ($totalCount === null) {
38	1		$totalCount = $this->findCount($analysedQuery);
39			}
40	2		$result->setTotalCount($totalCount);
41			}
42
43	30		return $result;
44			}
45
46	2		public function getTotalCountForQuery(ConfiguredQuery $configuredQuery): int
47			{
48	2		$analysedQuery = $this->queryAnalyser->analyseQueryWithoutPager($configuredQuery);
49
50	2		return $this->findCount($analysedQuery);
51			}
52
53	30		private function buildResult(AnalysedQuery $analysedQuery, Pager $pager)
54			{
55	30		$items = $this->findItems($analysedQuery, $pager);
56
57	30		if (count($items) === 0) {
58	11		return $this->buildResultForEmptyItems($analysedQuery, $pager);
59			}
60
61	20		$orderingConfigurations = $analysedQuery->getOrderingConfigurations();
62	20		$previousCursor = $this->cursorBuilder->getCursorFromItem($items[0], $orderingConfigurations);
63	20		$nextCursor = $this->cursorBuilder->getCursorFromItem($items[count($items) - 1], $orderingConfigurations);
64
65	20		return (new Result())
66	20		->setItems($items)
67	20		->setPreviousCursor($previousCursor)
68	20		->setNextCursor($nextCursor)
69	20		->setHasPrevious($this->existsBeforeCursor($previousCursor, $analysedQuery))
70	20		->setHasNext($this->existsAfterCursor($nextCursor, $analysedQuery))
71			;
72			}
73
74	30		private function findItems(AnalysedQuery $analysedQuery, Pager $pager)
75			{
76	30		$pagedQueryBuilder = $this->pageQueryBuilder($analysedQuery, $pager);
77	30		$query = $pagedQueryBuilder->getQuery();
78	30		$items = $query->getResult();
79
80	30		if ($pager->getBefore() !== null) {
81	28		return array_reverse($items);
82			}
83	30		return $items;
84			}
85
86	30		private function pageQueryBuilder(AnalysedQuery $analysedQuery, Pager $pager)
87			{
88	30		$queryBuilder = $analysedQuery->cloneQueryBuilder();
89
90	30		if ($pager->getLimit() !== null) {
91	30		$queryBuilder->setMaxResults($pager->getLimit());
92			}
93
94	30		$orderingConfigurations = $analysedQuery->getOrderingConfigurations();
95	30		if ($pager->getBefore() !== null) {
96	28		$orderingConfigurations = $this->reverseOrderingDirection($orderingConfigurations);
97			}
98
99	30		$this->applyOrdering($queryBuilder, $orderingConfigurations);
100
101	30		if ($pager->getOffset() !== null) {
102	6		$this->applyOffset($queryBuilder, $pager->getOffset());
103	30		} elseif ($pager->getBefore() !== null) {
104	28		$this->applyBefore($queryBuilder, $pager->getBefore(), $analysedQuery);
105	30		} elseif ($pager->getAfter() !== null) {
106	27		$this->applyAfter($queryBuilder, $pager->getAfter(), $analysedQuery);
107			}
108
109	30		return $queryBuilder;
110			}
111
112			/**
113			* @param QueryBuilder $queryBuilder
114			* @param array\|OrderingConfiguration[] $orderingConfigurations
115			*/
116	30		private function applyOrdering(QueryBuilder $queryBuilder, array $orderingConfigurations)
117			{
118	30		foreach ($orderingConfigurations as $orderingConfiguration) {
119	30		$queryBuilder->addOrderBy(
120	30		$orderingConfiguration->getOrderByExpression(),
121	30		$orderingConfiguration->isOrderAscending() ? 'ASC' : 'DESC'
122			);
123			}
124	30		}
125
126	6		private function applyOffset(QueryBuilder $queryBuilder, int $offset)
127			{
128	6		$queryBuilder->setFirstResult($offset);
129	6		}
130
131			/**
132			* @param QueryBuilder $queryBuilder
133			* @param string $after
134			* @param AnalysedQuery $analysedQuery
135			*/
136	27		private function applyAfter(QueryBuilder $queryBuilder, string $after, AnalysedQuery $analysedQuery)
137			{
138	27		$this->applyCursor($queryBuilder, $after, $analysedQuery, false);
139	27		}
140
141			/**
142			* @param QueryBuilder $queryBuilder
143			* @param string $after
144			* @param AnalysedQuery $analysedQuery
145			*/
146	28		private function applyBefore(QueryBuilder $queryBuilder, string $after, AnalysedQuery $analysedQuery)
147			{
148	28		$this->applyCursor($queryBuilder, $after, $analysedQuery, true);
149	28		}
150
151			/**
152			* @param QueryBuilder $queryBuilder
153			* @param string $cursor
154			* @param AnalysedQuery $analysedQuery
155			* @param bool $invert
156			*/
157	28		private function applyCursor(QueryBuilder $queryBuilder, string $cursor, AnalysedQuery $analysedQuery, bool $invert)
158			{
159	28		$orderingConfigurations = $analysedQuery->getOrderingConfigurations();
160	28		$parsedCursor = $this->cursorBuilder->parseCursor($cursor, count($orderingConfigurations));
161
162	28		$expr = new Expr();
163	28		$whereClause = new Orx();
164	28		$previousConditions = new Andx();
165	28		foreach ($orderingConfigurations as $index => $orderingConfiguration) {
166	28		$useLargerThan = $orderingConfiguration->isOrderAscending();
167	28		if ($invert) {
168	28		$useLargerThan = !$useLargerThan;
169			}
170	28		$sign = $useLargerThan ? '>' : '<';
171	28		if ($parsedCursor->isCursoredItemIncluded() && $index === count($orderingConfigurations) - 1) {
172	11		$sign .= '=';
173			}
174
175	28		$currentCondition = clone $previousConditions;
176	28		$currentCondition->add(new Comparison(
177	28		$orderingConfiguration->getOrderByExpression(),
178	28		$sign,
179	28		$expr->literal($parsedCursor->getElementAtIndex($index))
180			));
181
182	28		$whereClause->add($currentCondition);
183
184	28		$previousConditions->add(new Comparison(
185	28		$orderingConfiguration->getOrderByExpression(),
186	28		'=',
187	28		$expr->literal($parsedCursor->getElementAtIndex($index))
188			));
189			}
190
191	28		$queryBuilder->andWhere($whereClause);
192	28		}
193
194	11		private function buildResultForEmptyItems(AnalysedQuery $analysedQuery, Pager $pager): Result
195			{
196	11		if ($pager->getLimit() === 0) {
197	3		return $this->buildResultForZeroLimit($analysedQuery, $pager);
198
199	9		} elseif ($pager->getBefore() !== null) {
200	2		$nextCursor = $this->cursorBuilder->invertCursorInclusion($pager->getBefore());
201	2		return (new Result())
202	2		->setPreviousCursor($pager->getBefore())
203	2		->setNextCursor($nextCursor)
204	2		->setHasPrevious(false)
205	2		->setHasNext($this->existsAfterCursor($nextCursor, $analysedQuery))
206			;
207
208	7		} elseif ($pager->getAfter() !== null) {
209	5		$previousCursor = $this->cursorBuilder->invertCursorInclusion($pager->getAfter());
210	5		return (new Result())
211	5		->setPreviousCursor($previousCursor)
212	5		->setNextCursor($pager->getAfter())
213	5		->setHasPrevious($this->existsBeforeCursor($previousCursor, $analysedQuery))
214	5		->setHasNext(false)
215			;
216
217	3		} elseif ($pager->getOffset() !== null && $pager->getOffset() > 0) {
218	3		return $this->buildResultForTooLargeOffset($analysedQuery);
219
220			}
221
222	1		return (new Result())
223	1		->setHasPrevious(false)
224	1		->setHasNext(false)
225			;
226			}
227
228	3		private function buildResultForZeroLimit(AnalysedQuery $analysedQuery, Pager $zeroLimitPager): Result
229			{
230	3		$pager = (clone $zeroLimitPager)->setLimit(1);
231	3		$items = $this->findItems($analysedQuery, $pager);
232
233	3		if (count($items) === 0) {
234	1		return $this->buildResultForEmptyItems($analysedQuery, $pager);
235			}
236
237	2		$orderingConfigurations = $analysedQuery->getOrderingConfigurations();
238	2		$previousCursor = $this->cursorBuilder->getCursorFromItem($items[0], $orderingConfigurations);
239	2		$nextCursor = $this->cursorBuilder->buildCursorWithIncludedItem($previousCursor);
240
241	2		return (new Result())
242	2		->setPreviousCursor($previousCursor)
243	2		->setNextCursor($nextCursor)
244	2		->setHasPrevious($this->existsBeforeCursor($previousCursor, $analysedQuery))
245	2		->setHasNext(true)
246			;
247
248			}
249
250	3		private function buildResultForTooLargeOffset(AnalysedQuery $analysedQuery): Result
251			{
252	3		$result = (new Result())->setHasNext(false);
253
254	3		$pagerForLastElement = (new Pager())->setLimit(1);
255	3		$modifiedAnalysedQuery = (clone $analysedQuery)->setOrderingConfigurations(
256	3		$this->reverseOrderingDirection($analysedQuery->getOrderingConfigurations())
257			);
258	3		$items = $this->findItems($modifiedAnalysedQuery, $pagerForLastElement);
259	3		if (count($items) === 0) {
260	1		return $result->setHasPrevious(false);
261			}
262
263	2		$lastItemCursor = $this->cursorBuilder->getCursorFromItem($items[0], $modifiedAnalysedQuery->getOrderingConfigurations());
264			return $result
265	2		->setHasPrevious(true)
266	2		->setPreviousCursor($this->cursorBuilder->buildCursorWithIncludedItem($lastItemCursor))
267	2		->setNextCursor($lastItemCursor)
268			;
269			}
270
271			/**
272			* @param array\|OrderingConfiguration[] $orderingConfigurations
273			* @return array\|OrderingConfiguration[]
274			*/
275	30		private function reverseOrderingDirection(array $orderingConfigurations): array
276			{
277	30		$reversedOrderingConfigurations = [];
278	30		foreach ($orderingConfigurations as $orderingConfiguration) {
279	30		$reversedOrderingConfigurations[] = (clone $orderingConfiguration)
280	30		->setOrderAscending(!$orderingConfiguration->isOrderAscending())
281			;
282			}
283	30		return $reversedOrderingConfigurations;
284			}
285
286	26	View Code Duplication	private function existsBeforeCursor(string $previousCursor, AnalysedQuery $analysedQuery)
			0 ignored issues – show Duplication introduced 2018-12-18 19:51 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
287			{
288	26		$nextPager = (new Pager())
289	26		->setBefore($previousCursor)
290	26		->setLimit(1)
291			;
292	26		return count($this->findItems($analysedQuery, $nextPager)) > 0;
293			}
294
295	22	View Code Duplication	private function existsAfterCursor(string $nextCursor, AnalysedQuery $analysedQuery)
			0 ignored issues – show Duplication introduced 2018-12-18 19:51 UTC by Report Bug Copy Issue Report This method seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
296			{
297	22		$nextPager = (new Pager())
298	22		->setAfter($nextCursor)
299	22		->setLimit(1)
300			;
301	22		return count($this->findItems($analysedQuery, $nextPager)) > 0;
302			}
303
304	2		private function calculateTotalCount(Pager $filter, int $resultCount)
305			{
306			if (
307	2		$filter->getOffset() !== null
308	2		&& ($filter->getLimit() === null \|\| $resultCount < $filter->getLimit())
309	2		&& ($resultCount !== 0 \|\| $filter->getOffset() === 0)
310			) {
311	1		return $resultCount + $filter->getOffset();
312			}
313
314	1		return null;
315			}
316
317	3		private function findCount(AnalysedQuery $analysedQuery): int
318			{
319	3		$countQueryBuilder = $analysedQuery->cloneQueryBuilder();
320	3		$countQueryBuilder->select(sprintf('count(%s)', $analysedQuery->getRootAlias()));
321	3		return (int)$countQueryBuilder->getQuery()->getSingleScalarResult();
322			}
323			}
324

paysera / lib-pagination

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ResultProvider::applyCursor() B

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