ostico/phporient

PHPOrient is a good php driver based on the binary protocol of OrientDB.

Sunday, May 21, 2017
by Ostico
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The README.md

PhpOrient

, _(*1)

PHPOrient is a php driver based on the binary protocol of OrientDB., _(*2)

status: Stable Please report any bugs you find so that we can improve the library for everyone., _(*3)

Requires

PHP Version >= 5.4 ( Socket extension enabled )
Orientdb version 1.7.4 or later.

PhpOrient works even on 32bit and 64bit platforms.

Warning, if you use a 32bit platform, you must use one of these libraries into YOUR application to avoid the loss of significant digits with Java long integers. Furthermore, these php modules should be loaded to achieve better driver performances on these systems.

BCMath Arbitrary Precision Mathematics (Faster, recommended)
GNU Multiple Precision

In PhpOrient, by design, numbers are always treated as strings because of the platform dependant nature of PHP. In 32bit platform numbers must be treated as string because values greater than 2^32 would be lost and the BCMath/GMP modules must be used to avoid this. To make the results consistent for all platforms ( 32 and 64bit ) and leave to the user/developer the decision on how to use it's own data ( by manual cast ) strings are used for all numeric data types.

Installation

Main public repository of PhpOrient is hosted at https://github.com/Ostico/PhpOrient.git., _(*4)

To install most recent version of library, just type, _(*5)

git clone https://github.com/Ostico/PhpOrient.git

where you want its file to be located., _(*6)

If you have not already installed globally, you have to download composer. Just run this command inside your PhpOrient directory., _(*7)

php -r "readfile('https://getcomposer.org/installer');" | php

Now get the required libraries to work with PhpOrient:, _(*8)

php composer.phar --no-dev install

Note:

If you already have a composer installed or your existing project use it, you can install/add PhpOrient via Composer https://packagist.org/packages/ostico/phporient, it is linked to this GitHub repository ( so it is everityme updated ), and add it as dependecy to your project., _(*9)

php composer.phar require "ostico/phporient:dev-master" --update-no-dev

Contributions

Fork the project.
Make your changes.
Add tests for it. This is important so I don’t break it in a future version unintentionally.
Send me a pull request (pull request to master will be rejected)
???
PROFIT

How to run tests

Get the development libraries with:

php composer.phar install

Bootsrap orient by running ./ci/ci-start.sh from project directory it will download latest orient and make some change on config and database for the tests
Run : ./vendor/bin/phpunit

Usage

PhpOrient specify autoload information, Composer generates a vendor/autoload.php file. You can simply include this file and you will get autoloading for free and declare the use of PhpOrient Client with fully qualified name., _(*10)

require "vendor/autoload.php";
use PhpOrient\PhpOrient;

A complete phpdoc reference can be found here ApiIndex or in the PhpOrient Wiki, _(*11)

Client initialization

There are several ways to initialize the client, _(*12)

$client = new PhpOrient( 'localhost', 2424 );
$client->username = 'root';
$client->password = 'root_pass';

$client = new PhpOrient();
$client->hostname = 'localhost';
$client->port     = 2424;
$client->username = 'root';
$client->password = 'root_pass';

$client = new PhpOrient();
$client->configure( array(
    'username' => 'root',
    'password' => 'root_pass',
    'hostname' => 'localhost',
    'port'     => 2424,
) );

Connect to perform Server Management Operations

$client = new PhpOrient( 'localhost', 2424 );
$client->username = 'root';
$client->password = 'root_pass';
$client->connect();

$client = new PhpOrient( 'localhost', 2424 );
$client->connect( 'root', 'root_pass' );

Database Create

$new_cluster_id = $client->dbCreate( 'my_new_database',
    PhpOrient::STORAGE_TYPE_MEMORY,   # optional, default: STORAGE_TYPE_PLOCAL
    PhpOrient::DATABASE_TYPE_GRAPH    # optional, default: DATABASE_TYPE_GRAPH
);

Drop a Database

$client->dbDrop( $this->db_name, 
    PhpOrient::STORAGE_TYPE_MEMORY  # optional, default: STORAGE_TYPE_PLOCAL
);

Check if a DB Exists

$client->dbExists( 'my_database', 
    PhpOrient::DATABASE_TYPE_GRAPH   # optional, default: DATABASE_TYPE_GRAPH
);

Get the the list of databases

$client->dbList();

Open a Database

$ClusterMap = $client->dbOpen( 'GratefulDeadConcerts', 'admin', 'admin' );

Send a command

This should be used only to perform not idempotent commands on a database, _(*13)

$client->command( 'create class Animal extends V' );
$client->command( "insert into Animal set name = 'rat', specie = 'rodent'" );

Make a query

$client->query( 'select from followed_by limit 10' );

Make an Async query ( callback )

$myFunction = function( Record $record) { var_dump( $record ); };
$client->queryAsync( 'select from followed_by', [ 'fetch_plan' => '*:1', '_callback' => $myFunction ] );

Load a Record

$record = $client->recordLoad( new ID( '#3:0' ) )[0];
$record = $client->recordLoad( new ID( 3, 0 ) )[0];
$record = $client->recordLoad( new ID( [ 'cluster' => 3, 'position' => 0 ] ) )[0];

Create a Record

$recordContent = [ 'accommodation' => 'houses', 'work' => 'bazar', 'holiday' => 'sea' ];
$rec = ( new Record() )->setOData( $recordContent )->setRid( new ID( 9 /* set only the cluster ID */ ) ); 
$record = $this->client->recordCreate( $rec );

Update a Record

To update a Record you must have one., _(*14)

If you have not a record you can build up a new one specifying a RID and the data:, _(*15)

$_recUp = [ 'accommodation' => 'hotel', 'work' => 'office', 'holiday' => 'mountain' ];
$recUp = ( new Record() )->setOData( $_recUp )->setOClass( 'V' )->setRid( new ID( 9, 0 ) );
$updated = $client->recordUpdate( $recUp );

Otherwise you can work with a previous loaded/created Record, _(*16)

/*
 Create/Load or Query for a Record
*/
$recordContent = [ 'accommodation' => 'houses', 'work' => 'bazar', 'holiday' => 'sea' ];
$rec = ( new Record() )->setOData( $recordContent )->setRid( new ID( 9 ) );
$record = $client->recordCreate( $rec );

/*
or Query for an existent one
*/
$record = $client->query( "select from V where @rid = '#9:0'" )[0];

/*
 NOW UPDATE
*/
$_recUp = [ 'accommodation' => 'bridge', 'work' => 'none', 'holiday' => 'what??' ];
$recUp = $record->setOData( $_recUp );
$updated = $client->recordUpdate( $recUp );

$myFunction = function( Record $record) { var_dump( $record ); };
$client->recordLoad( new ID( "9", "1" ), [ 'fetch_plan' => '*:2', '_callback' => $myFunction ] );

Delete a Record

$delete = $client->recordDelete( new ID( 11, 1 ) );

Execute OrientDB SQL Batch

$cmd = 'begin;' .
       'let a = create vertex set script = true;' .
       'let b = select from v limit 1;' .
       'let e = create edge from $a to $b;' .
       'commit retry 100;';

$lastRecord = $client->sqlBatch( $cmd );

Transactions

// create some record stuffs
$rec2Create = [ 'oClass' => 'V', 'oData' => [ 'alloggio' => 'albergo' ] ];
$rec        = Record::fromConfig( $rec2Create );
$first_rec  = $client->recordCreate( $rec );

$rec3Create = [ 'oClass' => 'V', 'oData' => [ 'alloggio' => 'house' ] ];
$rec        = Record::fromConfig( $rec3Create );
$sec_rec    = $client->recordCreate();

//get the transaction and start it
$tx = $client->getTransactionStatement();

//BEGIN THE TRANSACTION
$tx = $tx->begin();

//IN TRANSACTION
$recUp = [ 'accommodation' => 'mountain cabin' ];
$rec2 = new Record();
$rec2->setOData( $recUp );
$rec2->setOClass( 'V' );
$rec2->setRid( $first_rec->getRid() );
$rec2->setVersion( $first_rec->getVersion() );

$updateCommand = $client->recordUpdate( $rec2 );

$createCommand = $client->recordCreate(
    ( new Record() )
        ->setOData( [ 'accommodation' => 'bungalow' ] )
        ->setOClass( 'V' )
        ->setRid( new ID( 9 ) )
);

$deleteCommand = $client->recordDelete( $sec_rec->getRid() );

//Attach to the transaction statement, they will be executed in the same order
$tx->attach( $updateCommand );  // first
$tx->attach( $createCommand );  // second
$tx->attach( $deleteCommand );  // third

$result = $tx->commit();

/**
 * @var Record $record
 */
foreach ( $result as $record ){
    if( $record->getRid() == $first_rec->getRid() ){
        $this->assertEquals( $record->getOData(), [ 'accommodation' => 'mountain cabin' ] );
        $this->assertEquals( $record->getOClass(), $first_rec->getOClass() );
    } else {
        $this->assertEquals( $record->getOData(), [ 'accommodation' => 'bungalow' ] );
        $this->assertEquals( $record->getOClass(), 'V' );
    }
}

//check for deleted record
$deleted = $client->recordLoad( $sec_rec->getRid() );
$this->assertEmpty( $deleted );

Get the size of a database ( needs a DB opened )

$client->dbSize();

Get the range of record ids for a cluster

$data = $client->dataClusterDataRange( 9 );

Get the number of records in one or more clusters

$client->dataClusterCount( $client->getTransport()->getClusterMap()->getIdList() );

Get the number of records in an open database

$result = $client->dbCountRecords();

Reload the Database info

This method automatically updates the client Cluster Map. Can be used after a Class creation or a DataCluster Add/Drop, _(*17)

$reloaded_list = $client->dbReload();  # $reloaded_list === $client->getTransport()->getClusterMap()

Create a new data Cluster

$client->dataClusterAdd( 'new_cluster', 
    PhpOrient::CLUSTER_TYPE_MEMORY  # optional, default: PhpOrient::CLUSTER_TYPE_PHYSICAL
);

Drop a data cluster

$client->dataClusterDrop( 11 );

Persistent Connections ( Session Token )

Since version 27 is introduced an extension to allow use a token based session. This functionality must be enabled on the server config., _(*18)

In the first negotiation the client can ask for a token based authentication using the PhpOrient::setSessionToken method.
The server will reply with a token or with an empty string meaning that it not support token based session and is using an old style session.
For each request, the client will send the token and eventually it will get a new one if token lifetime ends.

When using the token based authentication, the connections can be shared between users of the same server., _(*19)

$client = new PhpOrient( 'localhost', 2424 ); 
$client->setSessionToken( true );  // set true to enable the token based authentication
$clusterID = $client->dbOpen( "GratefulDeadConcerts", 'admin', 'admin' );
$sessionToken = $client->getSessionToken(); // store this token somewhere

//destroy the old client, equals to another user/socket/ip ecc.
unset($client);

// create a new client
$client = new PhpOrient( 'localhost', 2424 ); 

// set the previous obtained token to re-attach to the old session
$client->setSessionToken( $sessionToken );  

//now the dbOpen is not needed to perform database operations
$records = $client->query( 'select * from V limit 10' );

//set the flag again to true if you want to renew the token
$client->setSessionToken( true );  // set true
$clusterID = $client->dbOpen( "GratefulDeadConcerts", 'admin', 'admin' );
$new_sessionToken = $client->getSessionToken();

$this->assertNotEquals( $sessionToken, $new_sessionToken );

A GRAPH Example

require "vendor/autoload.php";
use PhpOrient\PhpOrient;

$client = new PhpOrient();
$client->configure( array(
    'username' => 'admin',
    'password' => 'admin',
    'hostname' => 'localhost',
    'port'     => 2424,
) );

$client->connect();

$client->dbCreate( 'animals', PhpOrient::STORAGE_TYPE_MEMORY );
$client->dbOpen( 'animals', 'admin', 'admin' );

$client->command( 'create class Animal extends V' );
$client->command( "insert into Animal set name = 'rat', specie = 'rodent'" );
$animal = $client->query( "select * from Animal" );


$client->command( 'create class Food extends V' );
$client->command( "insert into Food set name = 'pea', color = 'green'" );

$client->command( 'create class Eat extends E' );

$client->command( "create edge Eat from ( select from Animal where name = 'rat' ) to ( select from Food where name = 'pea' )" );

$pea_eaters = $client->query( "select expand( in( Eat )) from Food where name = 'pea'" );

$animal_foods = $client->query( "select expand( out( Eat )) from Animal" );

foreach ( $animal_foods as $food ) {
    $animal = $client->query(
        "select name from ( select expand( in('Eat') ) from Food where name = 'pea' )"
    )[0];
    $this->assertEquals( 'pea', $food[ 'name' ] );
    $this->assertEquals( 'green', $food[ 'color' ] );
    $this->assertEquals( 'rat', $animal[ 'name' ] );
}