README

Build and execute ElasticSearch queries using a fluent PHP API

This package is a lightweight query builder for ElasticSearch. It was specifically built for our elasticsearch-search-string-parser so it covers most use-cases but might lack certain features. We're always open for PRs if you need anything specific!

use Everzel\ElasticsearchQueryBuilder\Aggregations\MaxAggregation;
use Everzel\ElasticsearchQueryBuilder\Builder;
use Everzel\ElasticsearchQueryBuilder\Queries\MatchQuery;

$client = Elasticsearch\ClientBuilder::create()->build();

$companies = (new Builder($client))
    ->index('companies')
    ->addQuery(MatchQuery::create('name', 'spatie', fuzziness: 3))
    ->addAggregation(MaxAggregation::create('score'))
    ->search();

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Installation

You can install the package via composer:

composer require everzel/elasticsearch-query-builder

Basic usage

The only class you really need to interact with is the Everzel\ElasticsearchQueryBuilder\Builder class. It requires an \Elasticsearch\Client passed in the constructor. Take a look at the ElasticSearch SDK docs to learn more about connecting to your ElasticSearch cluster.

The Builder class contains some methods to add queries, aggregations, sorts, fields and some extras for pagination. You can read more about these methods below. Once you've fully built-up the query you can use $builder->search() to execute the query or $builder->getPayload() to get the raw payload for ElasticSearch.

use Everzel\ElasticsearchQueryBuilder\Queries\RangeQuery;
use Everzel\ElasticsearchQueryBuilder\Builder;

$client = Elasticsearch\ClientBuilder::create()->build();

$builder = new Builder($client);

$builder->addQuery(RangeQuery::create('age')->gte(18));

$results = $builder->search(); // raw response from ElasticSearch

Adding queries

The $builder->addQuery() method can be used to add any of the available Query types to the builder. The available query types can be found below or in the src/Queries directory of this repo. Every Query has a static create() method to pass its most important parameters.

The following query types are available:

`ExistsQuery`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-exists-query.html

\Everzel\ElasticsearchQueryBuilder\Queries\ExistsQuery::create('terms_and_conditions');

`MatchQuery`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-query.html

\Everzel\ElasticsearchQueryBuilder\Queries\MatchQuery::create('name', 'john doe', fuzziness: 2);

`MultiMatchQuery`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-multi-match-query.html

\Everzel\ElasticsearchQueryBuilder\Queries\MultiMatchQuery::create('john', ['email', 'email'], fuzziness: 'auto');

`NestedQuery`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-nested-query.html

\Everzel\ElasticsearchQueryBuilder\Queries\NestedQuery::create(
    'user', 
    new \Everzel\ElasticsearchQueryBuilder\Queries\MatchQuery('name', 'john')
);

`RangeQuery`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-range-query.html

\Everzel\ElasticsearchQueryBuilder\Queries\RangeQuery::create('age')
    ->gte(18)
    ->lte(1337);

`TermQuery`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-term-query.html

\Everzel\ElasticsearchQueryBuilder\Queries\TermQuery::create('user.id', 'flx');

`WildcardQuery`

[https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html](https://www. elastic.co/guide/en/elasticsearch/reference/current/query-dsl-wildcard-query.html)

\Everzel\ElasticsearchQueryBuilder\Queries\WildcardQuery::create('user.id', '*doe');

`BoolQuery`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-bool-query.html

\Everzel\ElasticsearchQueryBuilder\Queries\BoolQuery::create()
    ->add($matchQuery, 'must_not')
    ->add($existsQuery, 'must_not');

Chaining multiple queries

Multiple addQuery() calls can be chained on one Builder. Under the hood they'll be added to a BoolQuery with occurrence type must. By passing a second argument to the addQuery() method you can select a different occurrence type:

$builder
    ->addQuery(
        MatchQuery::create('name', 'billie'), 
        'must_not' // available types: must, must_not, should, filter
    )
    ->addQuery(
        MatchQuery::create('team', 'eillish')
    );

More information on the boolean query and its occurrence types can be found in the ElasticSearch docs.

Adding aggregations

The $builder->addAggregation() method can be used to add any of the available Aggregations to the builder. The available aggregation types can be found below or in the src/Aggregations directory of this repo. Every Aggregation has a static create() method to pass its most important parameters and sometimes some extra methods.

use Everzel\ElasticsearchQueryBuilder\Aggregations\TermsAggregation;
use Everzel\ElasticsearchQueryBuilder\Builder;

$results = (new Builder(Elasticsearch\ClientBuilder::create()->build()))
    ->addAggregation(TermsAggregation::create('genres', 'genre'))
    ->search();

$genres = $results['aggregations']['genres']['buckets'];

The following query types are available:

`CardinalityAggregation`

\Everzel\ElasticsearchQueryBuilder\Aggregations\CardinalityAggregation::create('team_agg', 'team_name');

`FilterAggregation`

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-filter-aggregation.html

\Everzel\ElasticsearchQueryBuilder\Aggregations\FilterAggregation::create(
    'tshirts',
    \Everzel\ElasticsearchQueryBuilder\Queries\TermQuery::create('type', 'tshirt'),
    \Everzel\ElasticsearchQueryBuilder\Aggregations\MaxAggregation::create('max_price', 'price')
);

`MaxAggregation`

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-max-aggregation.html

\Everzel\ElasticsearchQueryBuilder\Aggregations\MaxAggregation::create('max_price', 'price');

`MinAggregation`

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-min-aggregation.html

\Everzel\ElasticsearchQueryBuilder\Aggregations\MinAggregation::create('min_price', 'price');

`NestedAggregation`

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-nested-aggregation.html

\Everzel\ElasticsearchQueryBuilder\Aggregations\NestedAggregation::create(
    'resellers',
    'resellers',
    \Everzel\ElasticsearchQueryBuilder\Aggregations\MinAggregation::create('min_price', 'resellers.price'),
    \Everzel\ElasticsearchQueryBuilder\Aggregations\MaxAggregation::create('max_price', 'resellers.price'),
);

`ReverseNestedAggregation`

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-reverse-nested-aggregation.html

\Everzel\ElasticsearchQueryBuilder\Aggregations\ReverseNestedAggregation::create(
    'name',
    ...$aggregations
);

`TermsAggregation`

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-bucket-terms-aggregation.html

\Everzel\ElasticsearchQueryBuilder\Aggregations\TermsAggregation::create(
    'genres',
    'genre'
)
    ->size(10)
    ->order(['_count' => 'asc'])
    ->missing('N/A')
    ->aggregation(/* $subAggregation */);

`TopHitsAggregation`

https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-metrics-top-hits-aggregation.html

\Everzel\ElasticsearchQueryBuilder\Aggregations\TopHitsAggregation::create(
    'top_sales_hits',
    size: 10,
);

Adding sorts

The Builder (and some aggregations) has a addSort() method that takes a Sort instance to sort the results. You can read more about how sorting works in the ElasticSearch docs.

use Everzel\ElasticsearchQueryBuilder\Sorts\Sort;

$builder
    ->addSort(Sort::create('age', Sort::DESC))
    ->addSort(
        Sort::create('score', Sort::ASC)
            ->unmappedType('long')
            ->missing(0)
    );

Retrieve specific fields

The fields() method can be used to request specific fields from the resulting documents without returning the entire _source entry. You can read more about the specifics of the fields parameter in the ElasticSearch docs.

$builder->fields('user.id', 'http.*.status');

Pagination

Finally the Builder also features a size() and from() method for the corresponding ElasticSearch search parameters. These can be used to build a paginated search. Take a look the following example to get a rough idea:

use Everzel\ElasticsearchQueryBuilder\Builder;

$pageSize = 100;
$pageNumber = $_GET['page'] ?? 1;

$pageResults = (new Builder(\Elasticsearch\ClientBuilder::create()))
    ->size($pageSize)
    ->from(($pageNumber - 1) * $pageSize)
    ->search();

Testing

composer test

Changelog

Please see CHANGELOG for more information on what has changed recently.

Contributing

Please see CONTRIBUTING for details.

Security Vulnerabilities

Please review our security policy on how to report security vulnerabilities.

Credits

License

The MIT License (MIT). Please see License File for more information.

everzel / elasticsearch-query-builder

Maintainers

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