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<?php |
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/****************************************************************************** |
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* An implementation of dicto (scg.unibe.ch/dicto) in and for PHP. |
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* |
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* Copyright (c) 2016, 2015 Richard Klees <[email protected]> |
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* |
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* This software is licensed under The MIT License. You should have received |
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* a copy of the license along with the code. |
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*/ |
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namespace Lechimp\Dicto\DB; |
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use Doctrine\DBAL\Connection; |
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use Doctrine\DBAL\DriverManager; |
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abstract class DB { |
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/** |
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* @var Connection |
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*/ |
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protected $connection; |
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public function __construct(Connection $connection) { |
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$this->connection = $connection; |
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} |
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/** |
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* @return \Doctrine\DBAL\Query\Builder |
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*/ |
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public function builder() { |
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return $this->connection->createQueryBuilder(); |
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} |
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/** |
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* @return Connection |
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*/ |
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public function connection() { |
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return $this->connection; |
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} |
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/** |
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* Initialize REGEXP for sqlite. |
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*/ |
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public function init_sqlite_regexp() { |
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$pdo = $this->connection->getWrappedConnection(); |
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if (!($pdo instanceof \PDO)) { |
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throw new \RuntimeException( |
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"Expected wrapped connection to be PDO-object."); |
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} |
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$pdo->sqliteCreateFunction("regexp", function($pattern, $data) { |
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return preg_match("%$pattern%", $data) > 0; |
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}); |
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} |
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// Creation of database. |
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public function is_inited() { |
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$res = $this->builder() |
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->select("COUNT(*)") |
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->from("sqlite_master") |
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->where("type = 'table'") |
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->execute() |
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->fetchColumn(); |
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return $res > 0; |
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} |
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public function maybe_init_database_schema() { |
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if (!$this->is_inited()) { |
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$this->init_database_schema(); |
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} |
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} |
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abstract public function init_database_schema(); |
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/** |
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* Build pdo_sqlite connection to some file if path is given or |
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* to memory instead. |
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* |
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* @param string|null $path |
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* @return Connection |
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*/ |
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public static function sqlite_connection($path = null) { |
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assert('is_string($path) || is_null($path)'); |
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if ($path !== null) { |
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return DriverManager::getConnection |
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(["driver" => "pdo_sqlite" |
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, "memory" => false |
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, "path" => $path |
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]); |
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} |
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else { |
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return DriverManager::getConnection |
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(["driver" => "pdo_sqlite" |
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, "memory" => true |
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]); |
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} |
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} |
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} |
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lechimp-p /
dicto.php
