Execute raw expressions, fixes #19

README.md

@@ -230,6 +230,13 @@ These expressions will be injected directly into the query.
 
     User::whereRaw(array('age' => array('$gt' => 30, '$lt' => 40)))->get();
 
+You can also perform raw expressions on the internal MongoCollection object, note that this will return the original response, and not a collection of models.
+
+    User::raw(function($collection)
+    {
+        return $collection->find();
+    });
+
 **Query Caching**
 
 You may easily cache the results of a query using the remember method:

src/Jenssegers/Mongodb/Builder.php

@@ -2,6 +2,7 @@
 
 use MongoID;
 use MongoRegex;
+use Closure;
 
 class Builder extends \Illuminate\Database\Query\Builder {
 
@@ -403,6 +404,20 @@ class Builder extends \Illuminate\Database\Query\Builder {
         return (1 == (int) $result['ok']);
     }
 
+    /**
+     * Create a raw database expression.
+     *
+     * @param  closure  $expression
+     * @return mixed
+     */
+    public function raw($expression)
+    {
+        if ($expression instanceof Closure)
+        {
+            return call_user_func($expression, $this->collection);
+        }
+    }
+
     /**
      * Get a new instance of the query builder.
      *

tests/QueryTest.php

@@ -86,4 +86,16 @@ class QueryTest extends PHPUnit_Framework_TestCase {
 		$this->assertEquals(1, count($items));
 	}
 
+	public function testRaw()
+	{
+		DB::collection('users')->insert(array('name' => 'John Doe'));
+
+		$cursor = DB::collection('users')->raw(function($collection) {
+			return $collection->find();
+		});
+
+		$this->assertInstanceOf('MongoCursor', $cursor);
+		$this->assertEquals(1, $cursor->count());
+	}
+
 }
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