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<?php |
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/** |
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* Copyright 2021 Aleksandar Panic |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace ArekX\PQL\Drivers\Pdo; |
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use ArekX\PQL\Contracts\ResultReader; |
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/** |
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* PDO Reader for reading data from Statements. |
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*/ |
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class PdoResultReader implements ResultReader |
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{ |
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/** |
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* Current statement in use. |
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* @var \PDOStatement |
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*/ |
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public \PDOStatement $statement; |
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/** |
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* Current fetch mode. |
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* @var int |
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*/ |
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public $fetchMode = \PDO::FETCH_ASSOC; |
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/** |
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* Whether statement was executed. |
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* @var bool |
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*/ |
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protected $isExecuted = false; |
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/** |
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* Constructor for PDO Result reader |
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* @param \PDOStatement $statement Statement to be read from. |
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*/ |
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public function __construct(\PDOStatement $statement) |
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{ |
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$this->statement = $statement; |
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} |
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/** |
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* Create a reader from PDO statement. |
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* |
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* @param \PDOStatement $statement |
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* @return static |
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*/ |
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public static function create(\PDOStatement $statement) |
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{ |
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return new static($statement); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getAllRows(): array |
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{ |
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$results = []; |
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while (($row = $this->getNextRow()) !== false) { |
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$results[] = $row; |
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} |
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return $results; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getNextRow() |
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{ |
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return $this->statement->fetch($this->fetchMode); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getAllColumns($columnIndex = 0): array |
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{ |
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$results = []; |
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while (($column = $this->getNextColumn($columnIndex)) !== false) { |
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$results[] = $column; |
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} |
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return $results; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function getNextColumn($columnIndex = 0) |
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{ |
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return $this->statement->fetchColumn($columnIndex); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function reset(): void |
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{ |
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if ($this->isExecuted) { |
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$this->finalize(); |
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} |
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$this->statement->execute(); |
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$this->isExecuted = true; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function finalize(): void |
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{ |
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$this->statement->closeCursor(); |
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$this->isExecuted = false; |
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} |
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} |
ArekX /
PQL
