update to PHP 8 & ES 8

.gitignore

@@ -1,4 +1,5 @@
 /vendor/
 /phpunit.xml
 /composer.lock
-coverage.xml
+coverage.xml
+.phpunit.cache

.travis.yml

@@ -1,16 +1,10 @@
 sudo: false
 language: php
 php:
-  - 7.1
-  - 7.2
-  - 7.3
-  - 7.4snapshot
-matrix:
-  allow_failures:
-      - php: 7.4snapshot
+  - 8.1
 env:
   global:
-    - ES_VERSION=7.4.0 ES_DOWNLOAD_URL=https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-${ES_VERSION}-linux-x86_64.tar.gz
+    - ES_VERSION=8.9.0 ES_DOWNLOAD_URL=https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-${ES_VERSION}-linux-x86_64.tar.gz
 install:
   - wget ${ES_DOWNLOAD_URL}
   - tar -xzf elasticsearch-${ES_VERSION}-linux-x86_64.tar.gz

Makefile

@@ -0,0 +1,11 @@
+#!/usr/bin/make
+
+es::
+	docker run \
+          --name elasticsearch \
+          -p 9200:9200 \
+          -e discovery.type=single-node \
+          -e ES_JAVA_OPTS="-Xms1g -Xmx1g"\
+          -e xpack.security.enabled=false \
+          -it \
+          docker.elastic.co/elasticsearch/elasticsearch:8.9.0

README.md

@@ -1,10 +1,7 @@
 # ElasticsearchDSL
 
-Introducing Elasticsearch DSL library to provide objective query builder for [Elasticsearch bundle](https://github.com/ongr-io/ElasticsearchBundle) and [elasticsearch-php](https://github.com/elastic/elasticsearch-php) client. You can easily build any Elasticsearch query and transform it to an array.
+Introducing Elasticsearch DSL library to provide objective query builder for [elasticsearch-php](https://github.com/elastic/elasticsearch-php) client. You can easily build any Elasticsearch query and transform it to an array.
 
-If you need any help, [stack overflow](http://stackoverflow.com/questions/tagged/ongr)
-is the preferred and recommended way to ask ONGR support questions.
-
 [![Build Status](https://travis-ci.org/ongr-io/ElasticsearchDSL.svg?branch=master)](https://travis-ci.org/ongr-io/ElasticsearchDSL)
 [![codecov](https://codecov.io/gh/ongr-io/ElasticsearchDSL/branch/master/graph/badge.svg)](https://codecov.io/gh/ongr-io/ElasticsearchDSL)
 [![Latest Stable Version](https://poser.pugx.org/ongr/elasticsearch-dsl/v/stable)](https://packagist.org/packages/ongr/elasticsearch-dsl)
@@ -18,14 +15,15 @@ If you like this library, help me to develop it by buying a cup of coffee
 
 ## Version matrix
 
-| Elasticsearch version | ElasticsearchDSL version    |
-| --------------------- | --------------------------- |
-| >= 7.0                | >= 7.0                      |
-| >= 6.0, < 7.0         | >= 6.0                      |
-| >= 5.0, < 6.0         | >= 5.0                      |
-| >= 2.0, < 5.0         | >= 2.0 (not supported)      |
-| >= 1.0, < 2.0         | 1.x (not supported)         |
-| <= 0.90.x             | not supported               |
+| Elasticsearch version | ElasticsearchDSL version |
+|-----------------------|--------------------------|
+| >= 8.0                | >= 8.0                   |
+| >= 7.0                | >= 7.0                   |
+| >= 6.0, < 7.0         | >= 6.0                   |
+| >= 5.0, < 6.0         | >= 5.0                   |
+| >= 2.0, < 5.0         | >= 2.0 (not supported)   |
+| >= 1.0, < 2.0         | 1.x (not supported)      |
+| <= 0.90.x             | not supported            |
 
 ## Documentation
 
@@ -38,20 +36,13 @@ If you like this library, help me to develop it by buying a cup of coffee
 Install library with [composer](https://getcomposer.org):
 
 ```bash
-$ composer require ongr/elasticsearch-dsl
+$ composer require bistrosk/elasticsearch-dsl
 ```
 
 > [elasticsearch-php](https://github.com/elastic/elasticsearch-php) client is defined in the composer requirements, no need to install it.
 
 ### Search
 
-Elasticsearch DSL was extracted from [Elasticsearch Bundle](https://github.com/ongr-io/ElasticsearchBundle) to provide standalone query dsl for [elasticsearch-php](https://github.com/elastic/elasticsearch-php). Examples how to use it together with [Elasticsearch Bundle](https://github.com/ongr-io/ElasticsearchBundle) can be found in the [Elasticsearch Bundle docs](https://github.com/ongr-io/ElasticsearchBundle/blob/master/Resources/doc/search.md).
-
-If you dont want to use Symfony or Elasticsearch bundle, no worries, you can use it in any project together with [elasticsearch-php](https://github.com/elastic/elasticsearch-php). Here's the example:
-
-If you are using Symfony there is also the [ElasticsearchBundle](https://github.com/ongr-io/ElasticsearchBundle)
-which provides full integration with Elasticsearch DSL.
-
 The library is standalone and is not coupled with any framework. You can use it in any PHP project, the only
 requirement is composer.  Here's the example:
 

composer.json

@@ -1,5 +1,5 @@
 {
-    "name": "ongr/elasticsearch-dsl",
+    "name": "bistrosk/elasticsearch-dsl",
     "description": "Elasticsearch DSL library",
     "type": "library",
     "homepage": "http://ongr.io",
@@ -11,13 +11,13 @@
         }
     ],
     "require": {
-        "php": "^7.0",
-        "symfony/serializer": "^3.0|^4.0",
+        "php": ">=8.1",
+        "symfony/serializer": "^6.0",
         "paragonie/random_compat": "*"
     },
     "require-dev": {
-        "elasticsearch/elasticsearch": "^7.0",
-        "phpunit/phpunit": "~6.0",
+        "elasticsearch/elasticsearch": "^8.0",
+        "phpunit/phpunit": "~10.0",
         "squizlabs/php_codesniffer": "^3.0"
     },
     "suggest": {
@@ -34,9 +34,15 @@
         }
     },
     "minimum-stability": "dev",
+    "prefer-stable": true,
     "extra": {
         "branch-alias": {
-            "dev-master": "7.0-dev"
+            "dev-master": "8.0-dev"
+        }
+    },
+    "config": {
+        "allow-plugins": {
+            "php-http/discovery": true
         }
     }
 }

phpunit.xml.dist

@@ -1,38 +1,31 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit
-        backupGlobals="false"
-        backupStaticAttributes="false"
-        colors="true"
-        convertErrorsToExceptions="true"
-        convertNoticesToExceptions="true"
-        convertWarningsToExceptions="true"
-        processIsolation="false"
-        stopOnFailure="false"
-        syntaxCheck="false"
-        bootstrap="vendor/autoload.php">
-
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" colors="true"
+         processIsolation="false" stopOnFailure="false" bootstrap="vendor/autoload.php"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/10.2/phpunit.xsd" cacheDirectory=".phpunit.cache">
+    <coverage>
+        <report>
+            <text outputFile="php://stdout" showOnlySummary="true"/>
+        </report>
+    </coverage>
     <testsuites>
         <testsuite name="Unit">
             <directory>./tests/Unit/</directory>
         </testsuite>
-        <testsuite name="Functional">
-            <directory>./tests/Functional/</directory>
-        </testsuite>
-        <testsuite name="All">
-            <directory>./tests/</directory>
-        </testsuite>
+        <!--        <testsuite name="Functional">-->
+        <!--            <directory>./tests/Functional/</directory>-->
+        <!--        </testsuite>-->
+        <!--        <testsuite name="All">-->
+        <!--            <directory>./tests/</directory>-->
+        <!--        </testsuite>-->
     </testsuites>
-
-    <filter>
-        <whitelist>
+    <logging/>
+    <source>
+        <include>
             <directory>./</directory>
-            <exclude>
-                <directory>./tests</directory>
-                <directory>./vendor</directory>
-            </exclude>
-        </whitelist>
-    </filter>
-    <logging>
-        <log type="coverage-text" target="php://stdout" showOnlySummary="true"/>
-    </logging>
+        </include>
+        <exclude>
+            <directory>./tests</directory>
+            <directory>./vendor</directory>
+        </exclude>
+    </source>
 </phpunit>

src/Aggregation/AbstractAggregation.php

@@ -29,29 +29,26 @@ abstract class AbstractAggregation implements NamedBuilderInterface
      */
     private $field;
 
-    /**
-     * @var BuilderBag
-     */
-    private $aggregations;
+    private ?BuilderBag $aggregations = null;
 
     /**
      * Abstract supportsNesting method.
      *
      * @return bool
      */
-    abstract protected function supportsNesting();
+    abstract protected function supportsNesting(): bool;
 
     /**
      * @return array|\stdClass
      */
-    abstract protected function getArray();
+    abstract public function getArray(): array;
 
     /**
      * Inner aggregations container init.
      *
      * @param string $name
      */
-    public function __construct($name)
+    public function __construct(string $name)
     {
         $this->setName($name);
     }
@@ -79,13 +76,12 @@ public function getField()
     /**
      * Adds a sub-aggregation.
      *
-     * @param AbstractAggregation $abstractAggregation
      *
      * @return $this
      */
     public function addAggregation(AbstractAggregation $abstractAggregation)
     {
-        if (!$this->aggregations) {
+        if (!$this->aggregations instanceof BuilderBag) {
             $this->aggregations = $this->createBuilderBag();
         }
 
@@ -101,7 +97,7 @@ public function addAggregation(AbstractAggregation $abstractAggregation)
      */
     public function getAggregations()
     {
-        if ($this->aggregations) {
+        if ($this->aggregations instanceof BuilderBag) {
             return $this->aggregations->all();
         } else {
             return [];
@@ -126,11 +122,11 @@ public function getAggregation($name)
     /**
      * {@inheritdoc}
      */
-    public function toArray()
+    public function toArray(): array
     {
         $array = $this->getArray();
         $result = [
-            $this->getType() => is_array($array) ? $this->processArray($array) : $array,
+            $this->getType() => $this->processArray($array),
         ];
 
         if ($this->supportsNesting()) {

src/Aggregation/Bucketing/AdjacencyMatrixAggregation.php

@@ -22,14 +22,14 @@
  */
 class AdjacencyMatrixAggregation extends AbstractAggregation
 {
-    const FILTERS = 'filters';
+    final public const FILTERS = 'filters';
 
     use BucketingTrait;
 
     /**
      * @var BuilderInterface[]
      */
-    private $filters = [
+    private array $filters = [
         self::FILTERS => []
     ];
 
@@ -39,7 +39,7 @@ class AdjacencyMatrixAggregation extends AbstractAggregation
      * @param string             $name
      * @param BuilderInterface[] $filters
      */
-    public function __construct($name, $filters = [])
+    public function __construct(string $name, array $filters = [])
     {
         parent::__construct($name);
 
@@ -49,14 +49,9 @@ public function __construct($name, $filters = [])
     }
 
     /**
-     * @param string           $name
-     * @param BuilderInterface $filter
-     *
      * @throws \LogicException
-     *
-     * @return self
      */
-    public function addFilter($name, BuilderInterface $filter)
+    public function addFilter(string $name, BuilderInterface $filter): static
     {
         $this->filters[self::FILTERS][$name] = $filter->toArray();
 
@@ -66,15 +61,15 @@ public function addFilter($name, BuilderInterface $filter)
     /**
      * {@inheritdoc}
      */
-    public function getArray()
+    public function getArray(): array
     {
         return $this->filters;
     }
 
     /**
      * {@inheritdoc}
      */
-    public function getType()
+    public function getType(): string
     {
         return 'adjacency_matrix';
     }

src/Aggregation/Bucketing/AutoDateHistogramAggregation.php

@@ -32,7 +32,7 @@ class AutoDateHistogramAggregation extends AbstractAggregation
      * @param int    $buckets
      * @param string $format
      */
-    public function __construct($name, $field, $buckets = null, $format = null)
+    public function __construct(string $name, $field, $buckets = null, $format = null)
     {
         parent::__construct($name);
 
@@ -50,21 +50,19 @@ public function __construct($name, $field, $buckets = null, $format = null)
     /**
      * {@inheritdoc}
      */
-    public function getArray()
+    public function getArray(): array
     {
-        $data = array_filter(
+        return array_filter(
             [
                 'field' => $this->getField(),
             ]
         );
-
-        return $data;
     }
 
     /**
      * {@inheritdoc}
      */
-    public function getType()
+    public function getType(): string
     {
         return 'auto_date_histogram';
     }