annoraaq/parrotdb

PHP object database

ParrotDb

ParrotDb is an open source object database written in PHP., _(*1)

Please note this is a fun project and not intended for use in production. It is rather a proof of concept. However, feel free to check out the benchmark section of the wiki to get a first impression of performance., _(*2)

ParrotDb comes with an own query language as well as an own text file format., _(*3)

Installation

git clone https://github.com/Annoraaq/ParrotDb.git, _(*4)

composer install, _(*5)

Run tests

vendor/bin/phpunit, _(*6)

Basic usage

Let's say we have an example class:, _(*7)

class Bird
{
    public $id;
    public $name;
}

Now we need to create a session, a parser and a persistence manager:, _(*8)

$session = \ParrotDb\Core\PSessionFactory::createSession(
  "Testfile",
  \ParrotDb\Core\PSession::DB_XML
);

$parser = new \ParrotDb\Query\LotB\Parser\Parser($session->getDatabase());

$pm = $session->createPersistenceManager();

Insert

$bird = new Bird();
$bird->id = 42;
$bird->name = "Pelecanidae";

$pm->persist($bird);

$pm->commit();

Select

$constraint = $parser->parse('get Bird id = 42');
$resultSet = $pm->query($constraint);
$fetchedBird = $resultSet->first();

Update

$constraint = $parser->parse('get Bird id = 42');
$resultSet = $pm->query($constraint);
$fetchedBird = $resultSet->first();
$fetchedBird->name = "Pidgeon";
$pm->commit();

Delete

$constraint = $parser->parse('get Bird id = 42');
$pm->delete($constraint);