New MongoDb adapter

Carlos Barrero · Carlos Barrero · commit 770a3631fa6d · 2018-09-13T11:01:04.000+02:00
diff --git a/composer.json b/composer.json
@@ -24,7 +24,8 @@
         "mockery/mockery": "*@dev"
     },
     "suggest": {
-        "pimple/pimple": "Pimple allows to bootstrap phpmig really easily."
+        "pimple/pimple": "Pimple allows to bootstrap phpmig really easily.",
+        "mongodb/mongodb": "This library is required for the MongoDb adapter"
     },
     "autoload": {
         "psr-0": {
diff --git a/src/Phpmig/Adapter/MongoDb.php b/src/Phpmig/Adapter/MongoDb.php
@@ -0,0 +1,115 @@
+<?php
+
+namespace Phpmig\Adapter;
+
+use MongoDB\Database;
+use Phpmig\Migration\Migration;
+
+/**
+ * @author Carlos Barrero https://github.com/Zeyckler
+ */
+class MongoDb implements AdapterInterface
+{
+
+    /**
+     * @var Database
+     */
+    protected $connection = null;
+
+    /**
+     * @var string
+     */
+    protected $tableName = null;
+
+    /**
+     * @param Database $connection
+     * @param string   $tableName
+     */
+    public function __construct(Database $connection, $tableName)
+    {
+        $this->connection = $connection;
+        $this->tableName = $tableName;
+    }
+
+    /**
+     * Fetch all
+     *
+     * @return array
+     */
+    public function fetchAll()
+    {
+        $cursor = $this->connection->selectCollection($this->tableName)->find(
+            array(),
+            array('$project' => array('version' => 1))
+        );
+
+        return array_map(
+            function ($document) {
+                return $document['version'];
+            },
+            $cursor->toArray()
+        );
+    }
+
+    /**
+     * Up
+     *
+     * @param Migration $migration
+     *
+     * @return AdapterInterface
+     */
+    public function up(Migration $migration)
+    {
+        $document = array('version' => $migration->getVersion());
+        $this->connection->selectCollection($this->tableName)->insertOne($document);
+
+        return $this;
+    }
+
+    /**
+     * Down
+     *
+     * @param Migration $migration
+     *
+     * @return AdapterInterface
+     */
+    public function down(Migration $migration)
+    {
+        $document = array('version' => $migration->getVersion());
+        $this->connection->selectCollection($this->tableName)->deleteOne($document);
+
+        return $this;
+    }
+
+
+    /**
+     * Is the schema ready?
+     *
+     * @return bool
+     */
+    public function hasSchema()
+    {
+        foreach ($this->connection->listCollections() as $collection) {
+            if ($collection->getName() === $this->tableName) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+
+    /**
+     * Create Schema
+     *
+     * @return AdapterInterface
+     */
+    public function createSchema()
+    {
+        $key = array('version' => 1);
+        $options = array('unique' => true);
+        $this->connection->selectCollection($this->tableName)->createIndex($key, $options);
+
+        return $this;
+    }
+}
