PHP code example of cpliakas / dynamo-db-odm

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

cpliakas / dynamo-db-odm example snippets

namespace Acme\Entity;

use Aws\DynamoDb\Enum\Type;
use Cpliakas\DynamoDb\ODM\Entity;

class Book extends Entity
{
    // The DynanoDB table name
    protected static $table = 'books';

    // The attribute containing the hash key
    protected static $hashKeyAttribute = 'isbn';

    // Optionally set the $rangeKeyAttribute static if appropriate

    // Optionally enforce entity integrity
    protected static $enforceEntityIntegrity = true;

    // Optionally map attributes to data types
    protected static $dataTypeMappings = array(
        'isbn' => Type::STRING,
    );

    // Optionally add attribute setters and getters to taste
    public function setIsbn($isbn)
    {
        $this->setAttribute('isbn', $isbn);
        return $this;
    }

    public function getIsbn()
    {
        return $this->getAttribute('isbn');
    }
}

use Aws\DynamoDb\DynamoDbClient;
use Cpliakas\DynamoDb\ODM\DocumentManager;

$dynamoDb = DynamoDbClient::factory(array(
    'key'    => '<public-key>',
    'secret' => '<secret-key>',
    'region' => '<aws-region>',
));

$dm = new DocumentManager($dynamoDb);

// Register one or more namespaces that contain entities in order to avoid
// having to pass the fully qualified class names as arguments.
$dm->registerEntityNamesapce('Acme\Entity');

// Instantiate the entity object to model the new document. "Book" is the
// entity's class name as defined in the "Defining Entities" example above.
$book = $dm->entityFactory('Book')
    ->setHashKey('0-1234-5678-9')
    ->setAttribute('title', 'The Book Title')
    ->setAttribute('author', 'Chris Pliakas')
;

// Documents can also act like arrays
$book['copyright'] = 2014;

// Save the document
$dm->create($book);

// Bulk insert
foreach($books as $book) {
    $dm->createBatch($book);
}
$dm->flush();

// Read the document
$book = $dm->read('Book', '0-1234-5678-9');

// Update the document
$book['title'] = 'Revised title';
$dm->update($book);

// Delete the document
$dm->delete($book);


// Bulk delete
foreach($books as $book) {
    $dm->deleteBatch($book);
}
$dm->flush();

// Assume that the "Thread" entity's table uses the hash and range primary key
// type containing the forumName and subject attributes.

// Load the document by the hash and range keys
$book = $dm->read('Thread', array('PHP Libraries', 'Using the DynamoDB ODM'));

use Aws\DynamoDb\Enum\ComparisonOperator;

// Search for books published after 2010 that don't have the title "Do not read me"
$conditions = Conditions::factory()
    ->addCondition('title', 'Do not read me', ComparisonOperator::NE)
    ->addCondition('copyright', 2010, ComparisonOperator::GT)
;

// Search for books with existing attribute 'extra'
$conditions = Conditions::factory()
    ->addNotNullCondition('extra')
;

$result = $dm->scan('Book', $conditions);

namespace Acme\Entity;

use Cpliakas\DynamoDb\ODM\Entity;
use Cpliakas\DynamoDb\ODM\Renderer as Renderer;
use Cpliakas\DynamoDb\ODM\Transformer as Transformer;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;

class Book extends Entity
{
    // Set statics here ...

    public function __construct(EventDispatcherInterface $dispatcher, $data = array())
    {
        parent::__construct($dispatcher, $data);
        $this->addTransformer('created', new Transformer\Date());
    }
}

$time = new \DateTime();

$book = $dm->entityFactory('Book')
    ->setHashKey('0-1234-5678-9')
    ->setAttribute('created', $time)
;

$dm->create($book);

$this->addRenderer('created', new Renderer\Date());

$book = $dm->read('Book', '0-1234-5678-9');

echo $book['created']->format(\DateTime::ATOM);