Add avg_bucket & sum_bucket to aggregations

CHANGELOG.md

@@ -4,7 +4,7 @@ All notable changes to this project will be documented in this file based on the
 ## [Unreleased](https://github.com/ruflin/Elastica/compare/5.3.0...master)
 
 ### Backward Compatibility Breaks
- 
+
 ### Bugfixes
 
 ### Added
@@ -23,14 +23,15 @@ All notable changes to this project will be documented in this file based on the
 ### Backward Compatibility Breaks
 
 - Removed `Query\NumericRange`, use `Query\Range` instead [#1334](https://github.com/ruflin/Elastica/pull/1334)
- 
+
 ### Bugfixes
 
 - Send the `scroll_id` inside a json body instead of plain text [#1325](https://github.com/ruflin/Elastica/pull/1325)
 
 ### Added
  - Added getNumberOfReplicas() for index settings [PR#1324](https://github.com/ruflin/Elastica/pull/1324)
  - Added getNumberOfShards() for index settings [PR#1321](https://github.com/ruflin/Elastica/pull/1331)
+ - Added avg_bucket() and sum_bucket() in aggregations [PR#1443](https://github.com/ruflin/Elastica/pull/1443) - (https://github.com/ruflin/Elastica/issues/1279)
 
 
 ## [5.2.1](https://github.com/ruflin/Elastica/compare/5.2.0...5.2.1)

lib/Elastica/Aggregation/AvgBucket.php

@@ -0,0 +1,75 @@
+<?php
+namespace Elastica\Aggregation;
+
+use Elastica\Exception\InvalidException;
+
+/**
+ * Class AvgBucket.
+ *
+ * @link https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-pipeline-avg-bucket-aggregation.html
+ */
+class AvgBucket extends AbstractAggregation
+{
+    /**
+     * @param string      $name
+     * @param array|null  $bucketsPath
+     */
+    public function __construct($name, $bucketsPath = null)
+    {
+        parent::__construct($name);
+
+        if ($bucketsPath !== null) {
+            $this->setBucketsPath($bucketsPath);
+        }
+    }
+
+    /**
+     * Set the buckets_path for this aggregation.
+     *
+     * @param string $bucketsPath
+     *
+     * @return $this
+     */
+    public function setBucketsPath($bucketsPath)
+    {
+        return $this->setParam('buckets_path', $bucketsPath);
+    }
+
+    /**
+     * Set the gap policy for this aggregation.
+     *
+     * @param string $gapPolicy
+     *
+     * @return $this
+     */
+    public function setGapPolicy($gapPolicy)
+    {
+        return $this->setParam('gap_policy', $gapPolicy);
+    }
+
+    /**
+     * Set the format for this aggregation.
+     *
+     * @param string $format
+     *
+     * @return $this
+     */
+    public function setFormat($format)
+    {
+        return $this->setParam('format', $format);
+    }
+
+    /**
+     * @throws InvalidException If buckets path or script is not set
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        if (!$this->hasParam('buckets_path')) {
+            throw new InvalidException('Buckets path is required');
+        }
+
+        return parent::toArray();
+    }
+}

lib/Elastica/Aggregation/SumBucket.php

@@ -0,0 +1,75 @@
+<?php
+namespace Elastica\Aggregation;
+
+use Elastica\Exception\InvalidException;
+
+/**
+ * Class SumBucket.
+ *
+ * @link https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-pipeline-sum-bucket-aggregation.html
+ */
+class SumBucket extends AbstractAggregation
+{
+    /**
+     * @param string      $name
+     * @param array|null  $bucketsPath
+     */
+    public function __construct($name, $bucketsPath = null)
+    {
+        parent::__construct($name);
+
+        if ($bucketsPath !== null) {
+            $this->setBucketsPath($bucketsPath);
+        }
+    }
+
+    /**
+     * Set the buckets_path for this aggregation.
+     *
+     * @param string $bucketsPath
+     *
+     * @return $this
+     */
+    public function setBucketsPath($bucketsPath)
+    {
+        return $this->setParam('buckets_path', $bucketsPath);
+    }
+
+    /**
+     * Set the gap policy for this aggregation.
+     *
+     * @param string $gapPolicy
+     *
+     * @return $this
+     */
+    public function setGapPolicy($gapPolicy)
+    {
+        return $this->setParam('gap_policy', $gapPolicy);
+    }
+
+    /**
+     * Set the format for this aggregation.
+     *
+     * @param string $format
+     *
+     * @return $this
+     */
+    public function setFormat($format)
+    {
+        return $this->setParam('format', $format);
+    }
+
+    /**
+     * @throws InvalidException If buckets path or script is not set
+     *
+     * @return array
+     */
+    public function toArray()
+    {
+        if (!$this->hasParam('buckets_path')) {
+            throw new InvalidException('Buckets path is required');
+        }
+
+        return parent::toArray();
+    }
+}

lib/Elastica/QueryBuilder/DSL/Aggregation.php

@@ -2,6 +2,7 @@
 namespace Elastica\QueryBuilder\DSL;
 
 use Elastica\Aggregation\Avg;
+use Elastica\Aggregation\AvgBucket;
 use Elastica\Aggregation\BucketScript;
 use Elastica\Aggregation\Cardinality;
 use Elastica\Aggregation\DateHistogram;
@@ -26,6 +27,7 @@
 use Elastica\Aggregation\SignificantTerms;
 use Elastica\Aggregation\Stats;
 use Elastica\Aggregation\Sum;
+use Elastica\Aggregation\SumBucket;
 use Elastica\Aggregation\Terms;
 use Elastica\Aggregation\TopHits;
 use Elastica\Aggregation\ValueCount;
@@ -94,6 +96,21 @@ public function sum($name)
         return new Sum($name);
     }
 
+    /**
+     * sum bucket aggregation.
+     *
+     * @link https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-pipeline-sum-bucket-aggregation.html
+     *
+     * @param string $name
+     * @param array|null  $bucketsPath
+     *
+     * @return SumBucket
+     */
+    public function sum_bucket($name, $bucketsPath = null)
+    {
+        return new SumBucket($name, $bucketsPath);
+    }
+
     /**
      * avg aggregation.
      *
@@ -108,6 +125,21 @@ public function avg($name)
         return new Avg($name);
     }
 
+     /**
+     * avg bucket aggregation.
+     *
+     * @link https://www.elastic.co/guide/en/elasticsearch/reference/current/search-aggregations-pipeline-avg-bucket-aggregation.html
+     *
+     * @param string $name
+     * @param array|null  $bucketsPath
+     *
+     * @return AvgBucket
+     */
+    public function avg_bucket($name, $bucketsPath = null)
+    {
+        return new AvgBucket($name, $bucketsPath);
+    }
+
     /**
      * stats aggregation.
      *

lib/Elastica/QueryBuilder/Version/Version240.php

@@ -53,7 +53,9 @@ class Version240 extends Version
         'min',
         'max',
         'sum',
+        'sum_bucket',
         'avg',
+        'avg_bucket',
         'stats',
         'extended_stats',
         'value_count',

test/Elastica/Aggregation/AvgBucketTest.php

@@ -0,0 +1,87 @@
+<?php
+namespace Elastica\Test\Aggregation;
+
+use Elastica\Aggregation\AvgBucket;
+use Elastica\Aggregation\Avg;
+use Elastica\Aggregation\Terms;
+use Elastica\Document;
+use Elastica\Query;
+
+class AvgBucketTest extends BaseAggregationTest
+{
+    protected function _getIndexForTest()
+    {
+        $index = $this->_createIndex();
+
+        $index->getType('test')->addDocuments([
+            Document::create(['page' => 1, 'likes' => 180]),
+            Document::create(['page' => 1, 'likes' => 156]),
+            Document::create(['page' => 2, 'likes' => 155]),
+        ]);
+
+        $index->refresh();
+
+        return $index;
+    }
+
+    /**
+     * @group functional
+     */
+    public function testAvgBucketAggregation()
+    {
+        $this->_checkScriptInlineSetting();
+
+        $avgBucketAggregation = new AvgBucket(
+            'avg_likes_by_page',
+            'pages > avg_likes'
+        );
+
+        $sumLikes = new Avg('avg_likes');
+        $sumLikes->setField('likes');
+
+        $groupByPage = new Terms('pages');
+        $groupByPage
+            ->setField('page')
+            ->setSize(2)
+            ->addAggregation($sumLikes);
+
+        $query = Query::create([])->addAggregation($groupByPage)->addAggregation($avgBucketAggregation);
+
+        $results = $this->_getIndexForTest()->search($query)->getAggregation('avg_likes_by_page');
+
+        $this->assertEquals(161.5, $results['value']);
+    }
+
+    /**
+     * @group unit
+     */
+    public function testConstructThroughSetters()
+    {
+        $serialDiffAgg = new AvgBucket('avg_bucket');
+
+        $serialDiffAgg
+            ->setBucketsPath('pages > avg_likes_by_page')
+            ->setFormat('test_format')
+            ->setGapPolicy(10);
+
+        $expected = [
+            'avg_bucket' => [
+                'buckets_path' => 'pages > avg_likes_by_page',
+                'format' => 'test_format',
+                'gap_policy' => 10,
+            ],
+        ];
+
+        $this->assertEquals($expected, $serialDiffAgg->toArray());
+    }
+
+    /**
+     * @group unit
+     * @expectedException \Elastica\Exception\InvalidException
+     */
+    public function testToArrayInvalidBucketsPath()
+    {
+        $serialDiffAgg = new AvgBucket('avg_bucket');
+        $serialDiffAgg->toArray();
+    }
+}