Elastic Adapter

Elastic Adapter is an adapter for official PHP Elasticsearch client. It's designed to simplify basic index and document operations.

Compatibility
Installation
Index Management
Document Management

Compatibility

The current version of Elastic Adapter has been tested with the following configuration:

PHP 7.2-8.0
Elasticsearch 7.x

Installation

The library can be installed via Composer:

composer require babenkoivan/elastic-adapter

Index Management

IndexManager can be used to manipulate indices. It uses Elasticsearch client as a dependency, therefore you need to initiate the client before you create an IndexManager instance:

$client = \Elasticsearch\ClientBuilder::fromConfig([
  'hosts' => [
      'localhost:9200'
  ]
]);

$indexManager = new \ElasticAdapter\Indices\IndexManager($client);

The manager provides a list of useful methods, which are listed below.

Create

Create an index, either with the default settings and mapping:

$index = new \ElasticAdapter\Indices\Index('my_index');

$indexManager->create($index);

or configured according to your needs:

$mapping = (new \ElasticAdapter\Indices\Mapping())
    ->text('title', [
        'boost' => 2,
    ])
    ->keyword('tag', [
        'null_value' => 'NULL'
    ])
    ->geoPoint('location')
    ->dynamicTemplate('no_doc_values', [
        'match_mapping_type' => '*',
        'mapping' => [
            'type' => '{dynamic_type}',
            'doc_values' => false,
        ],
    ]);

$settings = (new \ElasticAdapter\Indices\Settings())
    ->index([
        'number_of_replicas' => 2,
        'refresh_interval' => -1
    ]);

$index = new \ElasticAdapter\Indices\Index('my_index', $mapping, $settings);

$indexManager->create($index);

Drop

Delete an index:

$indexManager->drop('my_index');

Put Mapping

Update an index mapping:

$mapping = (new \ElasticAdapter\Indices\Mapping())
    ->text('title', [
        'boost' => 2,
    ])
    ->keyword('tag', [
        'null_value' => 'NULL'
    ])
    ->geoPoint('location');

$indexManager->putMapping('my_index', $mapping);

Put Settings

Update an index settings:

$settings = (new \ElasticAdapter\Indices\Settings())
    ->analysis([
        'analyzer' => [
            'content' => [
                'type' => 'custom',
                'tokenizer' => 'whitespace'    
            ]
        ]
    ]);

$indexManager->putSettings('my_index', $settings);

Exists

Check if an index exists:

$indexManager->exists('my_index');

Open

Open an index:

$indexManager->open('my_index');

Close

Close an index:

$indexManager->close('my_index');

Put Alias

Create an alias:

$alias = new \ElasticAdapter\Indices\Alias('my_alias', [
    'term' => [
        'user_id' => 12,
    ],
]);

$indexManager->putAlias('my_index', $alias);

Get Aliases

Get index aliases:

$indexManager->getAliases('my_index');

Delete Alias

Delete an alias:

$indexManager->deleteAlias('my_index', 'my_alias');

Document Management

Similarly to IndexManager, the DocumentManager class also depends on Elasticsearch client:

$client = \Elasticsearch\ClientBuilder::fromConfig([
  'hosts' => [
      'localhost:9200'
  ]
]);

$documentManager = new \ElasticAdapter\Documents\DocumentManager($client);

Index

Add a document to the index:

$documents = [
    new ElasticAdapter\Documents\Document('1', ['title' => 'foo']),
    new ElasticAdapter\Documents\Document('2', ['title' => 'bar']),
];

$documentManager->index('my_index', $documents);

There is also an option to refresh index immediately:

$documentManager->index('my_index', $documents, true);

There is also an option to set a custom routing path:

$documentManager->index('my_index', $documents, false, $routingPath = 'document_field');

This will route documents to an elasticsearch shard based on the document_field value.

$routingPath can be specified in dot notation to access nested fields.

Delete

Remove a document from the index:

$documents = [
    new ElasticAdapter\Documents\Document('1', ['title' => 'foo']),
    new ElasticAdapter\Documents\Document('2', ['title' => 'bar']),
];

$documentManager->delete('my_index', $documents);

If you want the index to be refreshed immediately pass true as the third argument:

$documentManager->delete('my_index', $documents, true);

If you want to delete the document only at a specified shard then pass a $routingPath as the fourth argument:

$documentManager->delete('my_index', $documents, false, $routingPath = 'document_field');