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| <?php declare(strict_types = 1); | |
| /* | |
| * Copyright (c) 2019, Josef Kufner <josef@kufner.cz> | |
| * | |
| * Licensed under the Apache License, Version 2.0 (the "License"); | |
| * you may not use this file except in compliance with the License. | |
| * You may obtain a copy of the License at | |
| * | |
| * http://www.apache.org/licenses/LICENSE-2.0 | |
| * | |
| * Unless required by applicable law or agreed to in writing, software | |
| * distributed under the License is distributed on an "AS IS" BASIS, | |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| * See the License for the specific language governing permissions and | |
| * limitations under the License. | |
| * | |
| */ | |
| namespace Smalldb\StateMachine\SqlExtension\ReferenceDataSource; | |
| use Doctrine\DBAL\Driver\Statement; | |
| use Doctrine\DBAL\FetchMode; | |
| use IteratorAggregate; | |
| use Smalldb\StateMachine\ReferenceInterface; | |
| use Traversable; | |
| class ReferenceQueryResult extends DataSource implements IteratorAggregate | |
| { | |
| private Statement $stmt; | |
| public function __construct(?DataSource $originalDataSource, Statement $stmt) | |
| { | |
| parent::__construct($originalDataSource); | |
| $this->stmt = $stmt; | |
| } | |
| public function getWrappedStatement(): Statement | |
| { | |
| return $this->stmt; | |
| } | |
| public function fetch(): ?ReferenceInterface | |
| { | |
| $row = $this->stmt->fetch(FetchMode::ASSOCIATIVE); | |
| if ($row === false) { | |
| return null; | |
| } else { | |
| $ref = new $this->refClass($this->smalldb, $this->machineProvider, $this); | |
| /** @noinspection PhpUndefinedMethodInspection */ | |
| ($this->refClass)::hydrateFromArray($ref, $row); | |
| return $ref; | |
| } | |
| } | |
| /** | |
| * @return ReferenceInterface[] | |
| */ | |
| public function fetchAll(): array | |
| { | |
| $list = []; | |
| while (($row = $this->stmt->fetch(FetchMode::ASSOCIATIVE)) !== false) { | |
| $ref = new $this->refClass($this->smalldb, $this->machineProvider, $this); | |
| /** @noinspection PhpUndefinedMethodInspection */ | |
| ($this->refClass)::hydrateFromArray($ref, $row); | |
| $list[] = $ref; | |
| } | |
| return $list; | |
| } | |
| public function getIterator(): Traversable | |
| { | |
| while (($row = $this->stmt->fetch(FetchMode::ASSOCIATIVE)) !== false) { | |
| $ref = new $this->refClass($this->smalldb, $this->machineProvider, $this); | |
| /** @noinspection PhpUndefinedMethodInspection */ | |
| ($this->refClass)::hydrateFromArray($ref, $row); | |
| yield $ref; | |
| } | |
| } | |
| public function map(callable $mapFunction): Traversable | |
| { | |
| foreach ($this->getIterator() as $k => $item) { | |
| yield $k => $mapFunction($item); | |
| } | |
| } | |
| public function join(string $separator, ?callable $mapFunction = null): string | |
| { | |
| $iter = $this->getIterator(); | |
| $str = ''; | |
| if ($mapFunction) { | |
| foreach ($iter as $first) { | |
| $str = (string)$mapFunction($first); | |
| break; | |
| } | |
| foreach ($iter as $item) { | |
| $str .= $separator; | |
| $str .= (string)$mapFunction($item); | |
| } | |
| return $str; | |
| } else { | |
| foreach ($iter as $first) { | |
| $str = (string)$first; | |
| break; | |
| } | |
| foreach ($iter as $item) { | |
| $str .= $separator; | |
| $str .= $item; | |
| } | |
| return $str; | |
| } | |
| } | |
| } |