Added NestedObject

src/Mapping/Settings/Mapping/NestedObject.php

@@ -0,0 +1,58 @@
+<?php declare(strict_types = 1);
+
+namespace Spameri\ElasticQuery\Mapping\Settings\Mapping;
+
+class NestedObject implements \Spameri\ElasticQuery\Mapping\Settings\Mapping\FieldInterface
+{
+
+	/**
+	 * @var string
+	 */
+	private $name;
+
+	/**
+	 * @var \Spameri\ElasticQuery\Mapping\Settings\Mapping\FieldCollection
+	 */
+	private $fields;
+
+
+	public function __construct(
+		string $name,
+		\Spameri\ElasticQuery\Mapping\Settings\Mapping\FieldCollection $fields
+	)
+	{
+		$this->name = $name;
+		$this->fields = $fields;
+	}
+
+
+	public function key(): string
+	{
+		return $this->name;
+	}
+
+
+	public function toArray(): array
+	{
+		$fields = [];
+		/** @var \Spameri\ElasticQuery\Mapping\Settings\Mapping\FieldInterface $field */
+		foreach ($this->fields as $field) {
+			if ($field instanceof \Spameri\ElasticQuery\Mapping\Settings\Mapping\FieldObject) {
+				$fields[$field->key()] = $field->toArray();
+				continue;
+			}
+			if ($field instanceof \Spameri\ElasticQuery\Mapping\Settings\Mapping\FieldCollection) {
+				$fields[$field->key()] = $field->toArray();
+				continue;
+			}
+
+			$fields[$field->key()] = $field->toArray()[$field->key()];
+		}
+
+		return [
+			'properties' => $fields,
+			'type' => 'nested',
+		];
+	}
+
+}