Add raw and doctrine paginator adapter implementations

Paginator/AbstractPaginatorAdapter.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace FOQ\ElasticaBundle\Paginator;
+
+use Zend\Paginator\Adapter;
+use Elastica_Searchable;
+use Elastica_Query;
+
+/**
+ * Implements the Zend\Paginator\Adapter Interface for use with Zend\Paginator\Paginator
+ *
+ * Allows pagination of Elastica_Query. Does not map results
+ */
+abstract class AbstractPaginatorAdapter implements Adapter
+{
+    /**
+     * @var Elastica_SearchableInterface the object to search in
+     */
+    protected $searchable = null;
+
+    /**
+     * @var Elastica_Query the query to search
+     */
+    protected $query = null;
+
+    /**
+     * @see PaginatorAdapterInterface::__construct
+     *
+     * @param Elastica_SearchableInterface the object to search in
+     * @param Elastica_Query the query to search
+     */
+    public function __construct(Elastica_Searchable $searchable, Elastica_Query $query)
+    {
+        $this->searchable = $searchable;
+        $this->query      = $query;
+    }
+
+    protected function getElasticaResults($offset, $itemCountPerPage)
+    {
+        $query = clone $this->query;
+        $query->setFrom($offset);
+        $query->setLimit($itemCountPerPage);
+
+        return $this->searchable->search($query)->getResults();
+    }
+
+    /**
+     * @see Zend\Paginator\Adapter::count
+     */
+    public function count()
+    {
+		return $this->searchable->count($this->query);
+    }
+}

Paginator/DoctrinePaginatorAdapter.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace FOQ\ElasticaBundle\Paginator;
+
+use FOQ\ElasticaBundle\MapperInterface;
+use Elastica_Searchable;
+use Elastica_Query;
+
+/**
+ * Implements the Zend\Paginator\Adapter Interface for use with Zend\Paginator\Paginator
+ *
+ * Allows pagination of Elastica_Query
+ */
+class DoctrinePaginatorAdapter extends AbstractPaginatorAdapter
+{
+    protected $mapper;
+
+    /**
+     * @param Elastica_SearchableInterface the object to search in
+     * @param Elastica_Query the query to search
+     * @param MapperInterface the mapper for fetching the results
+     */
+    public function __construct(Elastica_Searchable $searchable, Elastica_Query $query, MapperInterface $mapper)
+    {
+        parent::__construct($searchable, $query);
+        $this->mapper = $mapper;
+    }
+
+    /**
+     * @see Zend\Paginator\Adapter::getItems
+     */
+    public function getItems($offset, $itemCountPerPage)
+    {
+        $results = $this->getElasticaResults($offset, $itemCountPerPage);
+
+        return $this->mapper->fromElasticaObjects($results);
+    }
+}

Paginator/RawPaginatorAdapter.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace FOQ\ElasticaBundle\Paginator;
+
+/**
+ * Implements the Zend\Paginator\Adapter Interface for use with Zend\Paginator\Paginator
+ *
+ * Allows pagination of Elastica_Query. Does not map results
+ */
+class RawPaginatorAdapter extends AbstractPaginatorAdapter
+{
+    /**
+     * @see Zend\Paginator\Adapter::getItems
+     */
+    public function getItems($offset, $itemCountPerPage)
+    {
+        $results = $this->getElasticaResults($offset, $itemCountPerPage);
+
+        return array_map(function($result) { return $result->getSource(); }, $results);
+    }
+}