[Term Recommender] #ESP-306 Add min_doc_count in term aggregation

src/module-elasticsuite-core/Search/Adapter/Elasticsuite/Request/Aggregation/Builder/Term.php

@@ -59,6 +59,9 @@ public function buildBucket(BucketInterface $bucket)
         if (!empty($bucket->getExclude())) {
             $aggregation['terms']['exclude'] = $bucket->getExclude();
         }
+        if ($bucket->getMinDocCount() !== null) {
+            $aggregation['terms']['min_doc_count'] = $bucket->getMinDocCount();
+        }
 
         return $aggregation;
     }

src/module-elasticsuite-core/Search/Request/Aggregation/Bucket/Term.php

@@ -48,6 +48,11 @@ class Term extends AbstractBucket
      */
     private $exclude;
 
+    /**
+     * @var int
+     */
+    private $minDocCount;
+
     /**
      * Constructor.
      *
@@ -65,6 +70,7 @@ class Term extends AbstractBucket
      * @param string              $sortOrder    Bucket sort order.
      * @param array               $include      Include bucket filter.
      * @param array               $exclude      Exclude bucket filter.
+     * @param int                 $minDocCount  Min doc count bucket filter.
      */
     public function __construct(
         $name,
@@ -78,14 +84,16 @@ public function __construct(
         $size = 0,
         $sortOrder = BucketInterface::SORT_ORDER_COUNT,
         $include = [],
-        $exclude = []
+        $exclude = [],
+        $minDocCount = null
     ) {
         parent::__construct($name, $field, $metrics, $childBuckets, $pipelines, $nestedPath, $filter, $nestedFilter);
 
         $this->size      = $size > 0 && $size < self::MAX_BUCKET_SIZE ? $size : self::MAX_BUCKET_SIZE;
         $this->sortOrder = $sortOrder;
         $this->include   = $include;
         $this->exclude   = $exclude;
+        $this->minDocCount   = $minDocCount;
     }
 
     /**
@@ -135,4 +143,14 @@ public function getExclude()
     {
         return $this->exclude;
     }
+
+    /**
+     * Bucket min doc count filter.
+     *
+     * @return int
+     */
+    public function getMinDocCount()
+    {
+        return $this->minDocCount;
+    }
 }