added methods to MongoDriver for custom commands, findAndModify, count

model/MongoDbCommand.php

@@ -18,6 +18,8 @@ class MongoCommandBuilder
 
     const REMOVE = 'Remove';
 
+    const COMMAND = 'Command';
+
     static public function factory($type, $collection = null)
     {
         $class = ucfirst($type) . 'MongoCommand';
@@ -167,4 +169,26 @@ class RemoveMongoCommand extends MongoDbCommand
     }
 }
 
- 
+ class CommandMongoCommand extends MongoDbCommand
+ {
+     protected $command;
+
+     protected function concreteExecute()
+     {
+         $db = $this->collection->db;
+         if($db instanceof MongoDB) {
+             return $db->command($this->command);
+         } else {
+             return false;
+         }
+     }
+
+    protected function checkParams()
+    {
+        if (isset($this->collection) && isset($this->command)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+ }