diff --git a/.gitignore b/.gitignore
index f6a98c3..24bad3a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /.project
 /.cache
 /tests/report
+*~
diff --git a/model/DbDriver.php b/model/DbDriver.php
index 444d2af..b5f2efd 100644
--- a/model/DbDriver.php
+++ b/model/DbDriver.php
@@ -12,8 +12,6 @@
 abstract class DbDriver
 {
     
-    protected $identifier_quote = '`';
-    
     /**
      * Database connection
      * 
@@ -44,173 +42,20 @@ abstract class DbDriver
             }
         }
     }
-    
+
     public function getConnection()
     {
         $this->connect();
         return $this->connection;
     }
-    
-    public function beginTransaction()
-    {
-        $this->connect();
-        $this->driverBeginTransaction();
-        return $this;
-    }
-    
-    public function commit()
-    {
-        $this->connect();
-        $this->driverCommitTransaction();
-        return $this;
-    }
-    
-    public function rollback()
-    {
-        $this->connect();
-        $this->driverRollbackTransaction();
-        return $this;
-    }
-    
-    /**
-     * @param string $sql
-     * @param mixed $params
-     * @return DbStatement
-     */
-    public function query($sql, $params = array())
-    {
-        $this->connect();
-        if (!is_array($params)) {
-            $params = array($params);
-        }
-        $stmt = $this->prepare($sql);
-        $stmt->execute($params);
-        return $stmt;
-    }
-    
-    /**
-     * @param string $table
-     * @param mixed $bind
-     * @param mixed $on_duplicate
-     * @return int Affected rows count
-     */
-    public function insert($table, $bind, $on_duplicate = array())
-    {
-        $columns = array();
-        foreach ($bind as $col => $val) {
-            $columns[] = $this->quoteIdentifier($col);
-        }
-        $values = array_values($bind);
-        
-        $sql = 'INSERT INTO ' . $this->quoteIdentifier($table)
-             . ' (' . implode(', ', $columns) . ') VALUES (' . $this->quote($values) . ')';
-        return $this->query($sql)->affectedRows();
-    }
-    
-    /**
-     * @param string $table
-     * @param array $bind
-     * @param mixed $where
-     * @return int
-     */
-    public function update($table, $bind, $where = '')
-    {
-        $set = array();
-        foreach ($bind as $col => $val) {
-            $set[] = $this->quoteIdentifier($col) . '=' . $this->quote($val);
-        }
-        $where = $this->whereExpr($where);
-        $sql = 'UPDATE ' . $this->quoteIdentifier($table) . ' SET ' . implode(', ', $set)
-             . (($where) ? (' WHERE ' . $where) : '');
-        return $this->query($sql)->affectedRows();
-    }
-    
-    /**
-     * @param string $table
-     * @param mixed $where
-     * @return int
-     */
-    public function delete($table, $where = '')
-    {
-        $where = $this->whereExpr($where);
-        $sql = 'DELETE FROM ' . $this->quoteIdentifier($table) . (($where) ? (' WHERE ' . $where) : '');
-        return $this->query($sql)->affectedRows();
-    }
-    
-    /**
-     * @param mixed $value
-     * @return string
-     */
-    public function quote($value)
-    {
-        if ($value instanceof DbExpr) {
-            return (string) $value;
-        }
-        if (is_array($value)) {
-             foreach ($value as &$val) {
-                 $val = $this->quote($val);
-             }
-             return implode(', ', $value);
-        }
-        return $this->driverQuote($value);
-    }
-    
-    /**
-     * @param string $ident
-     * @return string
-     */
-    public function quoteIdentifier($ident)
-    {
-        $ident = explode('.', $ident);
-        if (!is_array($ident)) {
-            $ident = array($ident);
-        }
-        foreach ($ident as &$segment) {
-            $segment = $this->identifier_quote . $segment . $this->identifier_quote;
-        }
-        return implode('.', $ident);
-    }
-    
-    public function quoteInto($text, $value)
-    {
-        $pos = mb_strpos($text, '?');
-        if ($pos === false) {
-            return $text;
-        }
-        return mb_substr($text, 0, $pos) . $this->quote($value) . mb_substr($text, $pos + 1);
-    }
-    
-    /**
-     * @param mixed $where
-     * @return string
-     */
-    protected function whereExpr($where)
-    {
-        if (empty($where)) {
-            return $where;
-        }
-        
-        if (!is_array($where)) {
-            $where = array($where);
-        }
-        foreach ($where as $cond => &$term) {
-            if (is_int($cond)) {
-                if ($term instanceof DbExpr) {
-                    $term = (string) $term;
-                }
-            } else {
-                $term = $this->quoteInto($cond, $term);
-            }
-        }
-        return implode(' AND ', $where);
-    }
-    
+
     /* Abstract methods  */
+
+    abstract public function insert($table, $data);
+
+    abstract public function update($table, $data, $condition);
     
-    /**
-     * @return DbStatement
-     */
-    abstract public function prepare($sql);
+    abstract public function delete($table, $condition);
     
     abstract public function getInsertId($table = null, $key = null);
     
@@ -219,12 +64,4 @@ abstract class DbDriver
     abstract public function disconnect();
     
     abstract protected function connect();
-    
-    abstract protected function driverQuote($value);
-    
-    abstract protected function driverBeginTransaction();
-    
-    abstract protected function driverCommitTransaction();
-    
-    abstract protected function driverRollbackTransaction();
 }
\ No newline at end of file
diff --git a/model/Model.php b/model/Model.php
index 53278c5..10e97f8 100644
--- a/model/Model.php
+++ b/model/Model.php
@@ -62,41 +62,13 @@ abstract class Model
     }
 
     /**
-     * @param string $ident
-     * @return string Quoted identifier.
-     */
-    public function identify($ident)
-    {
-        return $this->db->quoteIdentifier($ident);
-    }
-
-    /**
-     * @param mixed $value
-     * @return string Quoted value.
-     */
-    public function quote($value)
-    {
-        return $this->db->quote($value);
-    }
-
-    /**
-     * @param int $id
-     * @return object
-     */
-    public function get($id)
-    {
-        $sql = 'SELECT * FROM :table WHERE :pk=?';
-        return $this->fetch($sql, $id);
-    }
-
-    /**
      * @param array $data
      * @param array $on_duplicate
      * @return int Id of inserted row
      */
-    public function insert($data, $on_duplicate = array())
+    public function insert($data)
     {
-        $affected = $this->db->insert($this->table(), $data, $on_duplicate);
+        $affected = $this->db->insert($this->table(), $data);
         return ($this->getInsertId()) ? $this->getInsertId() : $affected;
     }
 
@@ -107,21 +79,8 @@ abstract class Model
      */
     public function update($data, $where)
     {
-        if (is_int($where) || $where === (string) (int) $where) {
-            $where = $this->identify($this->key) . '=' . (int) $where;
-        }
         return $this->db->update($this->table(), $data, $where);
     }
-
-    /**
-     * @param int $id Int id
-     * @return int Number of affected rows
-     */
-    public function delete($id)
-    {
-        $where = $this->identify($this->key) . '=' . (int) $id;
-        return $this->db->delete($this->table(), $where);
-    }
     
     /**
      * @return string
@@ -133,112 +92,7 @@ abstract class Model
         }
         return $this->table;
     }
-    
-    /**
-     * Creates order sql string
-     * 
-     * @param array $params
-     * @param array $sortable
-     * @return string
-     */
-    protected function order($params, $sortable = array('id'))
-    {
-        $sql = '';
-        if (isset($params['sort'])) {
-            $order = (isset($params['order']) && $params['order'] == 'desc') ? 'DESC' : 'ASC';
-            if (in_array($params['sort'], $sortable)) {
-                $sql = ' ORDER BY ' . $this->identify($params['sort']) .  ' ' . $order;
-            }
-        }
-        return $sql;
-    }
-    
-    /**
-     * Searches using like
-     * 
-     * @param array $params
-     * @param array $searchable
-     * @param string $table_prefix
-     * @return string
-     */
-    protected function search($params, $searchable = array('id'), $table_prefix = '')
-    {
-        $sql = '';
-        if (isset($params['q']) && isset($params['qt']) && in_array($params['qt'], $searchable)) {
-            if ($table_prefix) {
-                $sql = $table_prefix . '.';
-            }
-            $sql .= $this->identify($params['qt']) .  ' LIKE ' . $this->quote('%' . $params['q'] . '%');
-        }
-        return $sql;
-    }
 
-    /**
-     * This method appends to params table and primary key.
-     * So they can be accessed thru `:table` and `:pk` placeholders.
-     * 
-     * @return DbStatement
-     */
-    protected function query($sql, $params = array()) 
-    {
-        if (!is_array($params)) {
-            $params = array($params);
-        }
-        $params = array(
-            'table' => new DbExpr($this->identify($this->table())),
-            'pk' => new DbExpr($this->identify($this->key)),
-        ) + $params;
-        return $this->db->query($sql, $params);
-    }
-
-    /**
-     * @param string $sql
-     * @param array $params
-     * @param string $field
-     * @param CacheKey $cache_key
-     */
-    protected function fetchField($sql, $params = array(), $field, $cache_key = null)
-    {
-        if (!$cache_key || !$result = $cache_key->get()) {
-            $result = $this->query($sql, $params)->fetchField($field);
-            if ($cache_key) {
-                $cache_key->set($result);
-            }
-        }
-        return $result;
-    }
-    
-    /**
-     * @param string $sql
-     * @param array $params
-     * @param CacheKey $cache_key
-     */
-    protected function fetch($sql, $params = array(), $cache_key = null)
-    {
-        if (!$cache_key || !$result = $cache_key->get()) {
-            $result = $this->query($sql, $params)->fetch();
-            if ($cache_key) {
-                $cache_key->set($result);
-            }
-        }
-        return $result;
-    }
-    
-    /**
-     * @param string $sql
-     * @param array $params
-     * @param CacheKey $cache_key
-     */
-    protected function fetchAll($sql, $params = array(), $cache_key = null)
-    {
-        if (!$cache_key || !$result = $cache_key->get()) {
-            $result = $this->query($sql, $params)->fetchAll();
-            if ($cache_key) {
-                $cache_key->set($result);
-            }
-        }
-        return $result;
-    }
     
     /* Cache workaround */
     
@@ -280,4 +134,51 @@ abstract class Model
         }
         $this->caches_clean = array();
     }
+
+    /**
+     * Abstract methods
+     */
+
+    /**
+     * @param int $id
+     * @return object
+     */
+    abstract public function get($id);
+
+    /**
+     * @param int $id Int id
+     * @return int Number of affected rows
+     */
+    abstract public function delete($id);
+
+    /**
+     * Creates order sql string
+     *
+     * @param array $params
+     * @param array $sortable
+     * @return string
+     */
+    abstract  protected function order($params, $sortable = array('id'));
+
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param string $field
+     * @param CacheKey $cache_key
+     */
+    abstract protected function fetchField($data, $params = array(), $field, $cache_key = null);
+
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param CacheKey $cache_key
+     */
+    abstract  protected function fetch($data, $params = array(), $cache_key = null);
+
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param CacheKey $cache_key
+     */
+    abstract protected function fetchAll($data, $params = array(), $cache_key = null);
 }
\ No newline at end of file
diff --git a/model/MongoDriver.php b/model/MongoDriver.php
new file mode 100644
index 0000000..c1d48e0
--- /dev/null
+++ b/model/MongoDriver.php
@@ -0,0 +1,77 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage db
+ * @since 2011-11-10
+ */
+
+/**
+ * @property Mongo $connection
+ */
+class MongoDriver extends NoSqlDbDriver
+{
+
+    public function find($data, $params = array(), $cache_key = null)
+    {
+
+    }
+    
+    public function insert($table, $bind, $on_duplicate = array())
+    {
+        return parent::insert($table, $bind, $on_duplicate);
+    }
+
+    public function update($table, $bind, $where = '')
+    {
+        return parent::update($table, $bind, $where);
+    }
+
+    public function delete($table, $where = '')
+    {
+        return parent::delete($table, $where);
+    }
+
+
+    public function getInsertId($table = null, $key = null)
+    {
+        // TODO: Implement getInsertId() method.
+    }
+
+    public function isConnected()
+    {
+        if (!is_null($this->connection)) {
+            return $this->connection->connected;
+        } else {
+            return false;
+        }
+    }
+
+    public function disconnect()
+    {
+        if ($this->isConnected()) {
+            $this->connection->close();
+        }
+        $this->connection = null;
+    }
+
+    protected function connect()
+    {
+        if ($this->connection) {
+            return;
+        }
+
+        $host = $this->config['hostname'];
+        $port = isset($this->config['port']) ? ':' . (string) $this->config['port'] : '';
+
+        $this->config = array(
+            'username' => $this->config['username'],
+            'password' => $this->config['password'],
+            'db' => $this->config['database']
+        );
+
+        $this->connection = new Mongo('mongodb://' . $host . $port, $this->config);
+    }
+}
+
diff --git a/model/MySQLiDriver.php b/model/MySQLiDriver.php
index 4afa22c..2cae3f1 100644
--- a/model/MySQLiDriver.php
+++ b/model/MySQLiDriver.php
@@ -12,7 +12,7 @@
 /**
  * @property MySQLi $connection
  */
-class MySQLiDriver extends DbDriver
+class MySQLiDriver extends SqlDbDriver
 {
     
     public function insert($table, $bind, $on_duplicate = array())
diff --git a/model/NoSqlDbDriver.php b/model/NoSqlDbDriver.php
new file mode 100644
index 0000000..66a1f8f
--- /dev/null
+++ b/model/NoSqlDbDriver.php
@@ -0,0 +1,13 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage db
+ * @since 2011-11-11
+ */
+
+abstract class NoSqlDbDriver extends DbDriver
+{
+    abstract function find($data, $params = array(), $cache_key = null);
+}
\ No newline at end of file
diff --git a/model/SqlDbDriver.php b/model/SqlDbDriver.php
new file mode 100644
index 0000000..8d8b9af
--- /dev/null
+++ b/model/SqlDbDriver.php
@@ -0,0 +1,185 @@
+<?php
+/**
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage db
+ * @since 2011-11-11
+ */
+
+abstract class SqlDbDriver extends DbDriver
+{
+
+    protected $identifier_quote = '`';
+
+
+
+    public function beginTransaction()
+    {
+        $this->connect();
+        $this->driverBeginTransaction();
+        return $this;
+    }
+
+    public function commit()
+    {
+        $this->connect();
+        $this->driverCommitTransaction();
+        return $this;
+    }
+
+    public function rollback()
+    {
+        $this->connect();
+        $this->driverRollbackTransaction();
+        return $this;
+    }
+
+    /**
+     * @param string $sql
+     * @param mixed $params
+     * @return DbStatement
+     */
+    public function query($sql, $params = array())
+    {
+        $this->connect();
+        if (!is_array($params)) {
+            $params = array($params);
+        }
+        $stmt = $this->prepare($sql);
+        $stmt->execute($params);
+        return $stmt;
+    }
+
+    /**
+     * @param string $table
+     * @param mixed $bind
+     * @param mixed $on_duplicate
+     * @return int Affected rows count
+     */
+    public function insert($table, $data)
+    {
+        $columns = array();
+        foreach ($data as $col => $val) {
+            $columns[] = $this->quoteIdentifier($col);
+        }
+        $values = array_values($data);
+
+        $sql = 'INSERT INTO ' . $this->quoteIdentifier($table)
+             . ' (' . implode(', ', $columns) . ') VALUES (' . $this->quote($values) . ')';
+        return $this->query($sql)->affectedRows();
+    }
+
+    /**
+     * @param string $table
+     * @param array $bind
+     * @param mixed $where
+     * @return int
+     */
+    public function update($table, $data, $condition = '')
+    {
+        $set = array();
+        foreach ($data as $col => $val) {
+            $set[] = $this->quoteIdentifier($col) . '=' . $this->quote($val);
+        }
+        $where = $this->whereExpr($condition);
+        $sql = 'UPDATE ' . $this->quoteIdentifier($table) . ' SET ' . implode(', ', $set)
+             . (($where) ? (' WHERE ' . $where) : '');
+        return $this->query($sql)->affectedRows();
+    }
+
+    /**
+     * @param string $table
+     * @param mixed $where
+     * @return int
+     */
+    public function delete($table, $condition = '')
+    {
+        $where = $this->whereExpr($condition);
+        $sql = 'DELETE FROM ' . $this->quoteIdentifier($table) . (($where) ? (' WHERE ' . $where) : '');
+        return $this->query($sql)->affectedRows();
+    }
+
+    /**
+     * @param mixed $value
+     * @return string
+     */
+    public function quote($value)
+    {
+        if ($value instanceof DbExpr) {
+            return (string) $value;
+        }
+        if (is_array($value)) {
+             foreach ($value as &$val) {
+                 $val = $this->quote($val);
+             }
+             return implode(', ', $value);
+        }
+        return $this->driverQuote($value);
+    }
+
+    /**
+     * @param string $ident
+     * @return string
+     */
+    public function quoteIdentifier($ident)
+    {
+        $ident = explode('.', $ident);
+        if (!is_array($ident)) {
+            $ident = array($ident);
+        }
+        foreach ($ident as &$segment) {
+            $segment = $this->identifier_quote . $segment . $this->identifier_quote;
+        }
+        return implode('.', $ident);
+    }
+
+    public function quoteInto($text, $value)
+    {
+        $pos = mb_strpos($text, '?');
+        if ($pos === false) {
+            return $text;
+        }
+        return mb_substr($text, 0, $pos) . $this->quote($value) . mb_substr($text, $pos + 1);
+    }
+
+    /**
+     * @param mixed $where
+     * @return string
+     */
+    protected function whereExpr($where)
+    {
+        if (empty($where)) {
+            return $where;
+        }
+
+        if (!is_array($where)) {
+            $where = array($where);
+        }
+        foreach ($where as $cond => &$term) {
+            if (is_int($cond)) {
+                if ($term instanceof DbExpr) {
+                    $term = (string) $term;
+                }
+            } else {
+                $term = $this->quoteInto($cond, $term);
+            }
+        }
+        return implode(' AND ', $where);
+    }
+
+    /**
+     * @return DbStatement
+     */
+    abstract public function prepare($sql);
+
+    abstract protected function driverQuote($value);
+
+    abstract protected function driverBeginTransaction();
+
+    abstract protected function driverCommitTransaction();
+
+    abstract protected function driverRollbackTransaction();
+
+}
+    
\ No newline at end of file
diff --git a/model/SqlModel.php b/model/SqlModel.php
new file mode 100644
index 0000000..7724232
--- /dev/null
+++ b/model/SqlModel.php
@@ -0,0 +1,173 @@
+<?php
+
+/**
+ * Класс модели данных
+ *
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage Model
+ * @since 2011-11-11
+ */
+
+abstract class SqlModel extends Model
+{
+
+    /**
+     * @param string $ident
+     * @return string Quoted identifier.
+     */
+    public function identify($ident)
+    {
+        return $this->db->quoteIdentifier($ident);
+    }
+
+    /**
+     * @param mixed $value
+     * @return string Quoted value.
+     */
+    public function quote($value)
+    {
+        return $this->db->quote($value);
+    }
+
+    /**
+     * @param int $id
+     * @return object
+     */
+    public function get($id)
+    {
+        $sql = 'SELECT * FROM :table WHERE :pk=?';
+        return $this->fetch($sql, $id);
+    }
+
+    /**
+     * @param array $data
+     * @param mixed $where
+     * @return int Number of affected rows
+     */
+    public function update($data, $where)
+    {
+        if (is_int($where) || $where === (string) (int) $where) {
+            $where = $this->identify($this->key) . '=' . (int) $where;
+        }
+        return parent::update($data, $where);
+    }
+
+    /**
+     * @param int $id Int id
+     * @return int Number of affected rows
+     */
+    public function delete($id)
+    {
+        $where = $this->identify($this->key) . '=' . (int) $id;
+        return $this->db->delete($this->table(), $where);
+    }
+
+    /**
+     * Creates order sql string
+     *
+     * @param array $params
+     * @param array $sortable
+     * @return string
+     */
+    protected function order($params, $sortable = array('id'))
+    {
+        $sql = '';
+        if (isset($params['sort'])) {
+            $order = (isset($params['order']) && $params['order'] == 'desc') ? 'DESC' : 'ASC';
+            if (in_array($params['sort'], $sortable)) {
+                $sql = ' ORDER BY ' . $this->identify($params['sort']) .  ' ' . $order;
+            }
+        }
+        return $sql;
+    }
+
+    /**
+     * Searches using like
+     *
+     * @param array $params
+     * @param array $searchable
+     * @param string $table_prefix
+     * @return string
+     */
+    protected function search($params, $searchable = array('id'), $table_prefix = '')
+    {
+        $sql = '';
+        if (isset($params['q']) && isset($params['qt']) && in_array($params['qt'], $searchable)) {
+            if ($table_prefix) {
+                $sql = $table_prefix . '.';
+            }
+            $sql .= $this->identify($params['qt']) .  ' LIKE ' . $this->quote('%' . $params['q'] . '%');
+        }
+        return $sql;
+    }
+
+    /**
+     * This method appends to params table and primary key.
+     * So they can be accessed thru `:table` and `:pk` placeholders.
+     *
+     * @return DbStatement
+     */
+    protected function query($sql, $params = array())
+    {
+        if (!is_array($params)) {
+            $params = array($params);
+        }
+        $params = array(
+            'table' => new DbExpr($this->identify($this->table())),
+            'pk' => new DbExpr($this->identify($this->key)),
+        ) + $params;
+        return $this->db->query($sql, $params);
+    }
+
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param string $field
+     * @param CacheKey $cache_key
+     */
+    protected function fetchField($data, $params = array(), $field, $cache_key = null)
+    {
+        if (!$cache_key || !$result = $cache_key->get()) {
+            $result = $this->query($data, $params)->fetchField($field);
+            if ($cache_key) {
+                $cache_key->set($result);
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param CacheKey $cache_key
+     */
+    protected function fetch($data, $params = array(), $cache_key = null)
+    {
+        if (!$cache_key || !$result = $cache_key->get()) {
+            $result = $this->query($data, $params)->fetch();
+            if ($cache_key) {
+                $cache_key->set($result);
+            }
+        }
+        return $result;
+    }
+
+    /**
+     * @param string $sql
+     * @param array $params
+     * @param CacheKey $cache_key
+     */
+    protected function fetchAll($data, $params = array(), $cache_key = null)
+    {
+        if (!$cache_key || !$result = $cache_key->get()) {
+            $result = $this->query($data, $params)->fetchAll();
+            if ($cache_key) {
+                $cache_key->set($result);
+            }
+        }
+        return $result;
+    }
+    
+}
\ No newline at end of file
diff --git a/model_class_diadram.png b/model_class_diadram.png
new file mode 100644
index 0000000..1c74e42
Binary files /dev/null and b/model_class_diadram.png differ
diff --git a/tests/model/MongoDriverTest.php b/tests/model/MongoDriverTest.php
new file mode 100644
index 0000000..bcd0159
--- /dev/null
+++ b/tests/model/MongoDriverTest.php
@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage UnitTests
+ * @since 2011-11-10
+ * 
+ * Unit tests for MongoDriver class
+ */
+
+require_once dirname(__FILE__) . '/../../model/DbDriver.php';
+require_once dirname(__FILE__) . '/../../model/NoSqlDbDriver.php';
+require_once dirname(__FILE__) . '/../../model/MongoDriver.php';
+
+class MongoDriverTest extends PHPUnit_Framework_TestCase
+{
+
+    private $conf = array();
+
+    public function setUp()
+    {
+        $this->conf = array(
+            'hostname' => 'localhost',
+            'database' => 'test',
+            'username' => 'test',
+            'password' => '1234',
+            'port' => 27017
+        );
+    }
+    /**
+     * @expectedException Exception
+     * @expectedExceptionMessage Configuration must have a "hostname".
+     */
+    public function testGetConnectionNoHostname()
+    {
+        unset($this->conf['hostname']);
+        $mongo = new MongoDriver($this->conf);
+        $mongo->getConnection();
+    }
+
+    /**
+     * @expectedException MongoConnectionException
+     * @expectedExceptionMessage Couldn't authenticate with database
+     */
+    public function testGetConnectionWrongPassword()
+    {
+        $this->conf['password'] = 'nopass';
+        $mongo = new MongoDriver($this->conf);
+        $this->assertInstanceOf('Mongo', $mongo->getConnection());
+    }
+
+    public function testGetConnection()
+    {
+        $mongo = new MongoDriver($this->conf);
+
+        $this->assertFalse($mongo->isConnected());
+        $this->assertInstanceOf('Mongo', $mongo->getConnection());
+        $this->assertTrue($mongo->isConnected());
+        $mongo->disconnect();
+        $this->assertFalse($mongo->isConnected());
+    }
+
+}
\ No newline at end of file
diff --git a/tests/model/MySQLiDriverTest.php b/tests/model/MySQLiDriverTest.php
index 156cdad..a9a5747 100644
--- a/tests/model/MySQLiDriverTest.php
+++ b/tests/model/MySQLiDriverTest.php
@@ -14,6 +14,7 @@ require_once dirname(__FILE__) . '/../../model/Db.php';
 require_once dirname(__FILE__) . '/../../model/DbStatement.php';
 require_once dirname(__FILE__) . '/../../model/MySQLiStatement.php';
 require_once dirname(__FILE__) . '/../../model/DbDriver.php';
+require_once dirname(__FILE__) . '/../../model/SqlDbDriver.php';
 require_once dirname(__FILE__) . '/../../model/MySQLiDriver.php';
 
 class MySQLiDriverTest extends PHPUnit_Extensions_Database_TestCase
diff --git a/tests/model/DbDriverTest.php b/tests/model/SqlDbDriverTest.php
similarity index 93%
rename from tests/model/DbDriverTest.php
rename to tests/model/SqlDbDriverTest.php
index 891b0a0..8fc8e89 100644
--- a/tests/model/DbDriverTest.php
+++ b/tests/model/SqlDbDriverTest.php
@@ -13,8 +13,9 @@
 require_once dirname(__FILE__) . '/../../model/DbExpr.php';
 require_once dirname(__FILE__) . '/../../model/Db.php';
 require_once dirname(__FILE__) . '/../../model/DbDriver.php';
+require_once dirname(__FILE__) . '/../../model/SqlDbDriver.php';
 
-class DbDriverTest extends PHPUnit_Framework_TestCase
+class SqlDbDriverTest extends PHPUnit_Framework_TestCase
 {
 
     private $driver;
@@ -22,13 +23,13 @@ class DbDriverTest extends PHPUnit_Framework_TestCase
     public function setUp()
     {
         $conf = array('hostname' => 'localhost', 'database' => 'db', 'username' => 'test', 'password' => '1234');
-        $this->driver = $this->getMockForAbstractClass('DbDriver', array($conf));
+        $this->driver = $this->getMockForAbstractClass('SqlDbDriver', array($conf));
     }
 
     public function testConstruct()
     {
         $conf = array('hostname' => 'localhost', 'database' => 'db', 'username' => 'test', 'password' => '1234');
-        $this->driver = $this->getMockForAbstractClass('DbDriver', array($conf));
+        $this->driver = $this->getMockForAbstractClass('SqlDbDriver', array($conf));
     }
 
     /**
@@ -38,7 +39,7 @@ class DbDriverTest extends PHPUnit_Framework_TestCase
     public function testConstructWrongConfig()
     {
         $conf = array('hostname' => 'localhost', 'database' => 'db');
-        $this->getMockForAbstractClass('DbDriver', array($conf));
+        $this->getMockForAbstractClass('SqlDbDriver', array($conf));
     }
 
     public function testGetConnection()
diff --git a/tests/model/ModelTest.php b/tests/model/SqlModelTest.php
similarity index 92%
rename from tests/model/ModelTest.php
rename to tests/model/SqlModelTest.php
index e089eca..18de4ce 100644
--- a/tests/model/ModelTest.php
+++ b/tests/model/SqlModelTest.php
@@ -17,8 +17,9 @@ require_once dirname(__FILE__) . '/../../model/DbExpr.php';
 require_once dirname(__FILE__) . '/../../model/Db.php';
 require_once dirname(__FILE__) . '/../../model/DbDriver.php';
 require_once dirname(__FILE__) . '/../../model/Model.php';
+require_once dirname(__FILE__) . '/../../model/SqlModel.php';
 
-class ModelTest extends PHPUnit_Framework_TestCase
+class SqlModelTest extends PHPUnit_Framework_TestCase
 {
 
     private $model;
@@ -32,7 +33,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
         Config::set('Db', $conf);
         if (!class_exists('MockModel')) {
-            $this->model = $this->getMockForAbstractClass('Model', array(), 'MockModel');
+            $this->model = $this->getMockForAbstractClass('SqlModel', array(), 'MockModel');
         } else {
             $this->model = new MockModel();
         }
@@ -41,7 +42,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testModel()
     {
-        $this->assertInstanceOf('Model', $this->model);
+        $this->assertInstanceOf('SqlModel', $this->model);
     }
 
     public function testGetInsertId()
@@ -83,7 +84,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testOrder()
     {
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('order');
         $method->setAccessible(true);
         $this->assertEquals(' ORDER BY id DESC', $method->invoke($this->model, array('sort' => 'id', 'order' => 'desc')));
@@ -98,7 +99,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testSearch()
     {
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('search');
         $method->setAccessible(true);
         $this->assertEmpty($method->invoke($this->model, array()));
@@ -108,7 +109,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testFetch()
     {
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('fetch');
         $method->setAccessible(true);
 
@@ -118,7 +119,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testFetchField()
     {
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('fetchField');
         $method->setAccessible(true);
 
@@ -128,7 +129,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testFetchAll()
     {
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('fetchAll');
         $method->setAccessible(true);
 
@@ -167,7 +168,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testAddCleanCache()
     {
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('addCleanCache');
         $method->setAccessible(true);
 
@@ -180,7 +181,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
 
     public function testCleanCaches()
     {
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('addCleanCache');
         $method->setAccessible(true);
 
@@ -190,7 +191,7 @@ class ModelTest extends PHPUnit_Framework_TestCase
         $method->invoke($this->model, $key);
         $this->assertAttributeEquals(array($key, $key, $key), 'caches_clean', $this->model);
 
-        $model = new ReflectionClass('Model');
+        $model = new ReflectionClass('SqlModel');
         $method = $model->getMethod('cleanCaches');
         $method->setAccessible(true);
 
diff --git a/uml_model.zargo b/uml_model.zargo
new file mode 100644
index 0000000..a775ed3
Binary files /dev/null and b/uml_model.zargo differ