babenkoivan/elastic-adapter

Adapter for official PHP Elasticsearch client

Fund package maintenance!
Ko-Fi
Paypal

Installs: 2 055 165

Dependents: 8

Suggesters: 0

Security: 0

Stars: 38

Watchers: 3

Forks: 27

Open Issues: 1

v3.5.0 2023-04-25 07:13 UTC

README

Latest Stable Version Total Downloads License Tests Code style Static analysis Donate PayPal

Support the project!

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

Contents

Compatibility

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

  • PHP 7.4-8.x
  • Elasticsearch 8.x
  • Laravel 6.x-10.x

Installation

The library can be installed via Composer:

composer require babenkoivan/elastic-adapter

Configuration

Elastic Adapter uses babenkoivan/elastic-client as a dependency. To change the client settings you need to publish the configuration file first:

php artisan vendor:publish --provider="Elastic\Client\ServiceProvider"

In the newly created config/elastic.client.php file you can define the default connection name and describe multiple connections using configuration hashes. Please, refer to the elastic-client documentation for more details.

Index Management

\Elastic\Adapter\Indices\IndexManager is used to manipulate indices.

Create

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

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

$indexManager->create($index);

or configured according to your needs:

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

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

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

$indexManager->create($index);

Alternatively, you can create an index using raw input:

$mapping = [
    'properties' => [
        'title' => [
            'type' => 'text'
        ]   
    ]
];

$settings = [
    'number_of_replicas' => 2
];

$indexManager->createRaw('my_index', $mapping, $settings);

Drop

Delete an index:

$indexManager->drop('my_index');

Put Mapping

Update an index mapping using builder:

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

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

or using raw input:

$mapping = [
    'properties' => [
        'title' => [
            'type' => 'text'
        ]   
    ]
];

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

Put Settings

Update an index settings using builder:

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

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

or using raw input:

$settings = [
    'number_of_replicas' => 2
];

$indexManager->putSettingsRaw('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 \Elastic\Adapter\Indices\Alias('my_alias', true, [
    'term' => [
        'user_id' => 12,
    ],
]);

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

The same with raw input:

$settings = [
    'is_write_index' => true,
    'filter' => [
        'term' => [
            'user_id' => 12,
        ],
    ],
];

$indexManager->putAliasRaw('my_index', 'my_alias', $settings);

Get Aliases

Get index aliases:

$indexManager->getAliases('my_index');

Delete Alias

Delete an alias:

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

Connection

Switch Elasticsearch connection:

$indexManager->connection('my_connection');

Document Management

\Elastic\Adapter\Documents\DocumentManager is used to manage and search documents.

Index

Add a document to the index:

$documents = collect([
    new \Elastic\Adapter\Documents\Document('1', ['title' => 'foo']),
    new \Elastic\Adapter\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);

Finally, you can set a custom routing:

$routing = (new \Elastic\Adapter\Documents\Routing())
    ->add('1', 'value1')
    ->add('2', 'value2');

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

Delete

Remove a document from the index:

$documentIds = ['1', '2'];

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

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

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

You can also set a custom routing:

$routing = (new \Elastic\Adapter\Documents\Routing())
    ->add('1', 'value1')
    ->add('2', 'value2');

$documentManager->delete('my_index', $documentIds, false, $routing);

Finally, you can delete documents using query:

$documentManager->deleteByQuery('my_index', ['match_all' => new \stdClass()]);

Search

Search documents in the index:

// configure search parameters
$searchParameters = new \Elastic\Adapter\Search\SearchParameters();

// specify indices to search in
$searchParameters->indices(['my_index1', 'my_index2']);

// define the query
$searchParameters->query([
    'match' => [
        'message' => 'test'
    ]
]);

// configure highlighting
$searchParameters->highlight([
    'fields' => [
        'message' => [
            'type' => 'plain',
            'fragment_size' => 15,
            'number_of_fragments' => 3,
            'fragmenter' => 'simple'
        ]
    ]
]);

// add suggestions
$searchParameters->suggest([
    'message_suggest' => [
        'text' => 'test',
        'term' => [
            'field' => 'message'
        ]
    ]
]);

// enable source filtering
$searchParameters->source(['message', 'post_date']);

// collapse fields
$searchParameters->collapse([
    'field' => 'user'
]);

// aggregate data
$searchParameters->aggregations([
    'max_likes' => [
        'max' => [
            'field' => 'likes'
        ]
    ]
]);

// sort documents
$searchParameters->sort([
    ['post_date' => ['order' => 'asc']],
    '_score'
]);

// rescore documents
$searchParameters->rescore([
    'window_size' => 50,
    'query' => [
        'rescore_query' => [
            'match_phrase' => [
                'message' => [
                    'query' => 'the quick brown',
                    'slop' => 2,
                ],
            ],
        ],
        'query_weight' => 0.7,
        'rescore_query_weight' => 1.2,
    ]
]);

// add a post filter
$searchParameters->postFilter([
    'term' => [
        'cover' => 'hard'
    ]
]);

// track total hits
$searchParameters->trackTotalHits(true);

// track scores
$searchParameters->trackScores(true);

// script fields
$searchParameters->scriptFields([
    'my_doubled_field' => [
        'script' => [
            'lang' => 'painless',
            'source' => 'doc[params.field] * params.multiplier',
            'params' => [
                'field' => 'my_field',
                'multiplier' => 2,
            ],
        ],
    ],
]);

// boost indices
$searchParameters->indicesBoost([
    ['my-alias' => 1.4],
    ['my-index' => 1.3],
]);

// define the search type
$searchParameters->searchType('query_then_fetch');

// set the preference
$searchParameters->preference('_local');

// use pagination
$searchParameters->from(0)->size(20);

// search after
$searchParameters->pointInTime([
    'id' => '46ToAwMDaWR5BXV1',
    'keep_alive' => '1m',
]);

$searchParameters->searchAfter([
    '2021-05-20T05:30:04.832Z',
    4294967298,
]);

// use custom routing
$searchParameters->routing(['user1', 'user2']);

// enable explanation
$searchParameters->explain(true);

// set maximum number of documents to collect for each shard
$searchParameters->terminateAfter(10);

// enable caching
$searchParameters->requestCache(true);

// perform the search and get the result
$searchResult = $documentManager->search($searchParameters);

// get the total number of matching documents
$total = $searchResult->total(); 

// get the corresponding hits
$hits = $searchResult->hits();

// every hit provides access to the related index name, the score, the document, the highlight and more
// in addition, you can get a raw representation of the hit
foreach ($hits as $hit) {
    $indexName = $hit->indexName();
    $score = $hit->score();
    $document = $hit->document();
    $highlight = $hit->highlight();
    $innerHits = $hit->innerHits();
    $innerHitsTotal = $hit->innerHitsTotal();
    $raw = $hit->raw();
    
    // get an explanation 
    $explanation = $searchResult->explanation();
    
    // every explanation includes a value, a description and details
    // it is also possible to get its raw representation
    $value = $explanation->value();
    $description = $explanation->description();
    $details = $explanation->details();
    $raw = $explanation->raw();
}

// get suggestions
$suggestions = $searchResult->suggestions();

// get aggregations
$aggregations = $searchResult->aggregations();

Connection

Switch Elasticsearch connection:

$documentManager->connection('my_connection');

Point in Time Management

\Elastic\Adapter\Search\PointInTimeManager is used to control points in time.

Open

Open a point in time:

$pointInTimeId = $pointInTimeManager->open('my_index', '1m');

Close

Close a point in time:

$pointInTimeManager->close($pointInTimeId);

Connection

Switch Elasticsearch connection:

$pointInTimeManager->connection('my_connection');