diff --git a/yii/rbac/Assignment.php b/yii/rbac/Assignment.php
index b3aa74f..065aaa5 100644
--- a/yii/rbac/Assignment.php
+++ b/yii/rbac/Assignment.php
@@ -16,97 +16,40 @@ use yii\base\Object;
  * Do not create a Assignment instance using the 'new' operator.
  * Instead, call [[Manager::assign()]].
  *
- * @property mixed $userId User ID (see [[User::id]]).
- * @property string $itemName The authorization item name.
- * @property string $bizRule The business rule associated with this assignment.
- * @property mixed $data Additional data for this assignment.
- *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @author Alexander Kochetov <creocoder@gmail.com>
  * @since 2.0
  */
 class Assignment extends Object
 {
-	private $_auth;
-	private $_userId;
-	private $_itemName;
-	private $_bizRule;
-	private $_data;
-
-	/**
-	 * Constructor.
-	 * @param Manager $auth the authorization manager
-	 * @param mixed $userId user ID (see [[User::id]])
-	 * @param string $itemName authorization item name
-	 * @param string $bizRule the business rule associated with this assignment
-	 * @param mixed $data additional data for this assignment
-	 */
-	public function __construct($auth, $userId, $itemName, $bizRule = null, $data = null)
-	{
-		$this->_auth = $auth;
-		$this->_userId = $userId;
-		$this->_itemName = $itemName;
-		$this->_bizRule = $bizRule;
-		$this->_data = $data;
-	}
-
 	/**
-	 * @return mixed user ID (see [[User::id]])
+	 * @var Manager the auth manager of this item
 	 */
-	public function getUserId()
-	{
-		return $this->_userId;
-	}
-
-	/**
-	 * @return string the authorization item name
-	 */
-	public function getItemName()
-	{
-		return $this->_itemName;
-	}
-
+	public $manager;
 	/**
-	 * @return string the business rule associated with this assignment
+	 * @var string the business rule associated with this assignment
 	 */
-	public function getBizRule()
-	{
-		return $this->_bizRule;
-	}
-
+	public $bizRule;
 	/**
-	 * @param string $value the business rule associated with this assignment
+	 * @var mixed additional data for this assignment
 	 */
-	public function setBizRule($value)
-	{
-		if ($this->_bizRule !== $value) {
-			$this->_bizRule = $value;
-		}
-	}
-
+	public $data;
 	/**
-	 * @return mixed additional data for this assignment
+	 * @var mixed user ID (see [[User::id]]). Do not modify this property after it is populated.
+	 * To modify the user ID of an assignment, you must remove the assignment and create a new one.
 	 */
-	public function getData()
-	{
-		return $this->_data;
-	}
-
+	public $userId;
 	/**
-	 * @param mixed $value additional data for this assignment
+	 * @return string the authorization item name. Do not modify this property after it is populated.
+	 * To modify the item name of an assignment, you must remove the assignment and create a new one.
 	 */
-	public function setData($value)
-	{
-		if ($this->_data !== $value) {
-			$this->_data = $value;
-		}
-	}
+	public $itemName;
 
 	/**
 	 * Saves the changes to an authorization assignment.
 	 */
 	public function save()
 	{
-		$this->_auth->saveAssignment($this);
+		$this->manager->saveAssignment($this);
 	}
 }
diff --git a/yii/rbac/DbManager.php b/yii/rbac/DbManager.php
index 28b14d9..719ffa8 100644
--- a/yii/rbac/DbManager.php
+++ b/yii/rbac/DbManager.php
@@ -24,8 +24,6 @@ use yii\base\InvalidParamException;
  * the three tables used to store the authorization data by setting [[itemTable]],
  * [[itemChildTable]] and [[assignmentTable]].
  *
- * @property array $authItems The authorization items of the specific type.
- *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @author Alexander Kochetov <creocoder@gmail.com>
  * @since 2.0
@@ -106,13 +104,13 @@ class DbManager extends Manager
 		if (!isset($params['userId'])) {
 			$params['userId'] = $userId;
 		}
-		if ($this->executeBizRule($item->getBizRule(), $params, $item->getData())) {
+		if ($this->executeBizRule($item->bizRule, $params, $item->data)) {
 			if (in_array($itemName, $this->defaultRoles)) {
 				return true;
 			}
 			if (isset($assignments[$itemName])) {
 				$assignment = $assignments[$itemName];
-				if ($this->executeBizRule($assignment->getBizRule(), $params, $assignment->getData())) {
+				if ($this->executeBizRule($assignment->bizRule, $params, $assignment->data)) {
 					return true;
 				}
 			}
@@ -207,7 +205,7 @@ class DbManager extends Manager
 	public function getItemChildren($names)
 	{
 		$query = new Query;
-		$rows = $query->select(array('name', 'type', 'description', 'bizrule', 'data'))
+		$rows = $query->select(array('name', 'type', 'description', 'biz_rule', 'data'))
 			->from(array($this->itemTable, $this->itemChildTable))
 			->where(array('parent' => $names, 'name' => new Expression('child')))
 			->createCommand($this->db)
@@ -217,7 +215,14 @@ class DbManager extends Manager
 			if (($data = @unserialize($row['data'])) === false) {
 				$data = null;
 			}
-			$children[$row['name']] = new Item($this, $row['name'], $row['type'], $row['description'], $row['bizrule'], $data);
+			$children[$row['name']] = new Item(array(
+				'manager' => $this,
+				'name' => $row['name'],
+				'type' => $row['type'],
+				'description' => $row['description'],
+				'bizRule' => $row['biz_rule'],
+				'data' => $data,
+			));
 		}
 		return $children;
 	}
@@ -241,10 +246,16 @@ class DbManager extends Manager
 			->insert($this->assignmentTable, array(
 				'user_id' => $userId,
 				'item_name' => $itemName,
-				'bizrule' => $bizRule,
+				'biz_rule' => $bizRule,
 				'data' => serialize($data),
 			));
-		return new Assignment($this, $userId, $itemName, $bizRule, $data);
+		return new Assignment(array(
+			'manager' => $this,
+			'userId' => $userId,
+			'itemName' => $itemName,
+			'bizRule' => $bizRule,
+			'data' => $data,
+		));
 	}
 
 	/**
@@ -293,7 +304,13 @@ class DbManager extends Manager
 			if (($data = @unserialize($row['data'])) === false) {
 				$data = null;
 			}
-			return new Assignment($this, $row['user_id'], $row['item_name'], $row['bizrule'], $data);
+			return new Assignment(array(
+				'manager' => $this,
+				'userId' => $row['user_id'],
+				'itemName' => $row['item_name'],
+				'bizRule' => $row['biz_rule'],
+				'data' => $data,
+			));
 		} else {
 			return null;
 		}
@@ -317,7 +334,13 @@ class DbManager extends Manager
 			if (($data = @unserialize($row['data'])) === false) {
 				$data = null;
 			}
-			$assignments[$row['item_name']] = new Assignment($this, $row['user_id'], $row['item_name'], $row['bizrule'], $data);
+			$assignments[$row['item_name']] = new Assignment(array(
+				'manager' => $this,
+				'userId' => $row['user_id'],
+				'itemName' => $row['item_name'],
+				'bizRule' => $row['biz_rule'],
+				'data' => $data,
+			));
 		}
 		return $assignments;
 	}
@@ -330,11 +353,11 @@ class DbManager extends Manager
 	{
 		$this->db->createCommand()
 			->update($this->assignmentTable, array(
-				'bizrule' => $assignment->getBizRule(),
-				'data' => serialize($assignment->getData()),
+				'biz_rule' => $assignment->bizRule,
+				'data' => serialize($assignment->data),
 			), array(
-				'user_id' => $assignment->getUserId(),
-				'item_name' => $assignment->getItemName(),
+				'user_id' => $assignment->userId,
+				'item_name' => $assignment->itemName,
 			));
 	}
 
@@ -357,12 +380,12 @@ class DbManager extends Manager
 				->where(array('type' => $type))
 				->createCommand($this->db);
 		} elseif ($type === null) {
-			$command = $query->select(array('name', 'type', 'description', 't1.bizrule', 't1.data'))
+			$command = $query->select(array('name', 'type', 'description', 't1.biz_rule', 't1.data'))
 				->from(array($this->itemTable . ' t1', $this->assignmentTable . ' t2'))
 				->where(array('user_id' => $userId, 'name' => new Expression('item_name')))
 				->createCommand($this->db);
 		} else {
-			$command = $query->select('name', 'type', 'description', 't1.bizrule', 't1.data')
+			$command = $query->select('name', 'type', 'description', 't1.biz_rule', 't1.data')
 				->from(array($this->itemTable . ' t1', $this->assignmentTable . ' t2'))
 				->where(array('user_id' => $userId, 'type' => $type, 'name' => new Expression('item_name')))
 				->createCommand($this->db);
@@ -372,7 +395,14 @@ class DbManager extends Manager
 			if (($data = @unserialize($row['data'])) === false) {
 				$data = null;
 			}
-			$items[$row['name']] = new Item($this, $row['name'], $row['type'], $row['description'], $row['bizrule'], $data);
+			$items[$row['name']] = new Item(array(
+				'manager' => $this,
+				'name' => $row['name'],
+				'type' => $row['type'],
+				'description' => $row['description'],
+				'bizRule' => $row['biz_rule'],
+				'data' => $data,
+			));
 		}
 		return $items;
 	}
@@ -399,10 +429,17 @@ class DbManager extends Manager
 				'name' => $name,
 				'type' => $type,
 				'description' => $description,
-				'bizrule' => $bizRule,
+				'biz_rule' => $bizRule,
 				'data' => serialize($data),
 			));
-		return new Item($this, $name, $type, $description, $bizRule, $data);
+		return new Item(array(
+			'manager' => $this,
+			'name' => $name,
+			'type' => $type,
+			'description' => $description,
+			'bizRule' => $bizRule,
+			'data' => $data,
+		));
 	}
 
 	/**
@@ -439,7 +476,14 @@ class DbManager extends Manager
 			if (($data = @unserialize($row['data'])) === false) {
 				$data = null;
 			}
-			return new Item($this, $row['name'], $row['type'], $row['description'], $row['bizrule'], $data);
+			return new Item(array(
+				'manager' => $this,
+				'name' => $row['name'],
+				'type' => $row['type'],
+				'description' => $row['description'],
+				'bizRule' => $row['biz_rule'],
+				'data' => $data,
+			));
 		} else
 			return null;
 	}
@@ -463,10 +507,10 @@ class DbManager extends Manager
 		$this->db->createCommand()
 			->update($this->itemTable, array(
 				'name' => $item->getName(),
-				'type' => $item->getType(),
-				'description' => $item->getDescription(),
-				'bizrule' => $item->getBizRule(),
-				'data' => serialize($item->getData()),
+				'type' => $item->type,
+				'description' => $item->description,
+				'biz_rule' => $item->bizRule,
+				'data' => serialize($item->data),
 			), array(
 				'name' => $oldName === null ? $item->getName() : $oldName,
 			));
diff --git a/yii/rbac/Item.php b/yii/rbac/Item.php
index 57a7f7e..2504ad5 100644
--- a/yii/rbac/Item.php
+++ b/yii/rbac/Item.php
@@ -18,14 +18,6 @@ use yii\base\Object;
  * A user may be assigned one or several authorization items (called [[Assignment]] assignments).
  * He can perform an operation only when it is among his assigned items.
  *
- * @property Manager $authManager The authorization manager.
- * @property integer $type The authorization item type. This could be 0 (operation), 1 (task) or 2 (role).
- * @property string $name The item name.
- * @property string $description The item description.
- * @property string $bizRule The business rule associated with this item.
- * @property mixed $data The additional data associated with this item.
- * @property array $children All child items of this item.
- *
  * @author Qiang Xue <qiang.xue@gmail.com>
  * @author Alexander Kochetov <creocoder@gmail.com>
  * @since 2.0
@@ -36,32 +28,30 @@ class Item extends Object
 	const TYPE_TASK = 1;
 	const TYPE_ROLE = 2;
 
-	private $_auth;
-	private $_type;
+	/**
+	 * @var Manager the auth manager of this item
+	 */
+	public $manager;
+	/**
+	 * @var string the item description
+	 */
+	public $description;
+	/**
+	 * @var string the business rule associated with this item
+	 */
+	public $bizRule;
+	/**
+	 * @var mixed the additional data associated with this item
+	 */
+	public $data;
+	/**
+	 * @var integer the authorization item type. This could be 0 (operation), 1 (task) or 2 (role).
+	 */
+	public $type;
+
 	private $_name;
 	private $_oldName;
-	private $_description;
-	private $_bizRule;
-	private $_data;
 
-	/**
-	 * Constructor.
-	 * @param Manager $auth authorization manager
-	 * @param string $name authorization item name
-	 * @param integer $type authorization item type. This can be 0 (operation), 1 (task) or 2 (role).
-	 * @param string $description the description
-	 * @param string $bizRule the business rule associated with this item
-	 * @param mixed $data additional data for this item
-	 */
-	public function __construct($auth, $name, $type, $description = '', $bizRule = null, $data = null)
-	{
-		$this->_type = (int)$type;
-		$this->_auth = $auth;
-		$this->_name = $name;
-		$this->_description = $description;
-		$this->_bizRule = $bizRule;
-		$this->_data = $data;
-	}
 
 	/**
 	 * Checks to see if the specified item is within the hierarchy starting from this item.
@@ -74,11 +64,11 @@ class Item extends Object
 	public function checkAccess($itemName, $params = array())
 	{
 		Yii::trace('Checking permission: ' . $this->_name, __METHOD__);
-		if ($this->_auth->executeBizRule($this->_bizRule, $params, $this->_data)) {
+		if ($this->manager->executeBizRule($this->bizRule, $params, $this->data)) {
 			if ($this->_name == $itemName) {
 				return true;
 			}
-			foreach ($this->_auth->getItemChildren($this->_name) as $item) {
+			foreach ($this->manager->getItemChildren($this->_name) as $item) {
 				if ($item->checkAccess($itemName, $params)) {
 					return true;
 				}
@@ -88,22 +78,6 @@ class Item extends Object
 	}
 
 	/**
-	 * @return Manager the authorization manager
-	 */
-	public function getManager()
-	{
-		return $this->_auth;
-	}
-
-	/**
-	 * @return integer the authorization item type. This could be 0 (operation), 1 (task) or 2 (role).
-	 */
-	public function getType()
-	{
-		return $this->_type;
-	}
-
-	/**
 	 * @return string the item name
 	 */
 	public function getName()
@@ -123,60 +97,6 @@ class Item extends Object
 	}
 
 	/**
-	 * @return string the item description
-	 */
-	public function getDescription()
-	{
-		return $this->_description;
-	}
-
-	/**
-	 * @param string $value the item description
-	 */
-	public function setDescription($value)
-	{
-		if ($this->_description !== $value) {
-			$this->_description = $value;
-		}
-	}
-
-	/**
-	 * @return string the business rule associated with this item
-	 */
-	public function getBizRule()
-	{
-		return $this->_bizRule;
-	}
-
-	/**
-	 * @param string $value the business rule associated with this item
-	 */
-	public function setBizRule($value)
-	{
-		if ($this->_bizRule !== $value) {
-			$this->_bizRule = $value;
-		}
-	}
-
-	/**
-	 * @return mixed the additional data associated with this item
-	 */
-	public function getData()
-	{
-		return $this->_data;
-	}
-
-	/**
-	 * @param mixed $value the additional data associated with this item
-	 */
-	public function setData($value)
-	{
-		if ($this->_data !== $value) {
-			$this->_data = $value;
-		}
-	}
-
-	/**
 	 * Adds a child item.
 	 * @param string $name the name of the child item
 	 * @return boolean whether the item is added successfully
@@ -185,7 +105,7 @@ class Item extends Object
 	 */
 	public function addChild($name)
 	{
-		return $this->_auth->addItemChild($this->_name, $name);
+		return $this->manager->addItemChild($this->_name, $name);
 	}
 
 	/**
@@ -197,7 +117,7 @@ class Item extends Object
 	 */
 	public function removeChild($name)
 	{
-		return $this->_auth->removeItemChild($this->_name, $name);
+		return $this->manager->removeItemChild($this->_name, $name);
 	}
 
 	/**
@@ -208,7 +128,7 @@ class Item extends Object
 	 */
 	public function hasChild($name)
 	{
-		return $this->_auth->hasItemChild($this->_name, $name);
+		return $this->manager->hasItemChild($this->_name, $name);
 	}
 
 	/**
@@ -218,7 +138,7 @@ class Item extends Object
 	 */
 	public function getChildren()
 	{
-		return $this->_auth->getItemChildren($this->_name);
+		return $this->manager->getItemChildren($this->_name);
 	}
 
 	/**
@@ -233,7 +153,7 @@ class Item extends Object
 	 */
 	public function assign($userId, $bizRule = null, $data = null)
 	{
-		return $this->_auth->assign($userId, $this->_name, $bizRule, $data);
+		return $this->manager->assign($userId, $this->_name, $bizRule, $data);
 	}
 
 	/**
@@ -244,7 +164,7 @@ class Item extends Object
 	 */
 	public function revoke($userId)
 	{
-		return $this->_auth->revoke($userId, $this->_name);
+		return $this->manager->revoke($userId, $this->_name);
 	}
 
 	/**
@@ -255,7 +175,7 @@ class Item extends Object
 	 */
 	public function isAssigned($userId)
 	{
-		return $this->_auth->isAssigned($userId, $this->_name);
+		return $this->manager->isAssigned($userId, $this->_name);
 	}
 
 	/**
@@ -267,7 +187,7 @@ class Item extends Object
 	 */
 	public function getAssignment($userId)
 	{
-		return $this->_auth->getAssignment($userId, $this->_name);
+		return $this->manager->getAssignment($userId, $this->_name);
 	}
 
 	/**
@@ -275,7 +195,7 @@ class Item extends Object
 	 */
 	public function save()
 	{
-		$this->_auth->saveItem($this, $this->_oldName);
+		$this->manager->saveItem($this, $this->_oldName);
 		unset($this->_oldName);
 	}
 }
diff --git a/yii/rbac/Manager.php b/yii/rbac/Manager.php
index adc9013..23ac1a8 100644
--- a/yii/rbac/Manager.php
+++ b/yii/rbac/Manager.php
@@ -161,7 +161,7 @@ abstract class Manager extends Component
 	{
 		static $types = array('operation', 'task', 'role');
 		if ($parentType < $childType) {
-			throw new InvalidParamException("Cannot add an item of type '$types[$childType]' to an item of type '$types[$parentType]'.");
+			throw new InvalidParamException("Cannot add an item of type '{$types[$childType]}' to an item of type '{$types[$parentType]}'.");
 		}
 	}
 
diff --git a/yii/rbac/PhpManager.php b/yii/rbac/PhpManager.php
index 8a4dbec..7a476e0 100644
--- a/yii/rbac/PhpManager.php
+++ b/yii/rbac/PhpManager.php
@@ -80,14 +80,14 @@ class PhpManager extends Manager
 		if (!isset($params['userId'])) {
 			$params['userId'] = $userId;
 		}
-		if ($this->executeBizRule($item->getBizRule(), $params, $item->getData())) {
+		if ($this->executeBizRule($item->bizRule, $params, $item->data)) {
 			if (in_array($itemName, $this->defaultRoles)) {
 				return true;
 			}
 			if (isset($this->_assignments[$userId][$itemName])) {
 				/** @var $assignment Assignment */
 				$assignment = $this->_assignments[$userId][$itemName];
-				if ($this->executeBizRule($assignment->getBizRule(), $params, $assignment->getData())) {
+				if ($this->executeBizRule($assignment->bizRule, $params, $assignment->data)) {
 					return true;
 				}
 			}
@@ -117,7 +117,7 @@ class PhpManager extends Manager
 		$child = $this->_items[$childName];
 		/** @var $item Item */
 		$item = $this->_items[$itemName];
-		$this->checkItemChildType($item->getType(), $child->getType());
+		$this->checkItemChildType($item->type, $child->type);
 		if ($this->detectLoop($itemName, $childName)) {
 			throw new InvalidCallException("Cannot add '$childName' as a child of '$itemName'. A loop has been detected.");
 		}
@@ -194,7 +194,13 @@ class PhpManager extends Manager
 		} elseif (isset($this->_assignments[$userId][$itemName])) {
 			throw new InvalidParamException("Authorization item '$itemName' has already been assigned to user '$userId'.");
 		} else {
-			return $this->_assignments[$userId][$itemName] = new Assignment($this, $userId, $itemName, $bizRule, $data);
+			return $this->_assignments[$userId][$itemName] = new Assignment(array(
+				'manager' => $this,
+				'userId' => $userId,
+				'itemName' => $itemName,
+				'bizRule' => $bizRule,
+				'data' => $data,
+			));
 		}
 	}
 
@@ -265,15 +271,15 @@ class PhpManager extends Manager
 		if ($userId === null) {
 			foreach ($this->_items as $name => $item) {
 				/** @var $item Item */
-				if ($item->getType() == $type) {
+				if ($item->type == $type) {
 					$items[$name] = $item;
 				}
 			}
 		} elseif (isset($this->_assignments[$userId])) {
 			foreach ($this->_assignments[$userId] as $assignment) {
 				/** @var $assignment Assignment */
-				$name = $assignment->getItemName();
-				if (isset($this->_items[$name]) && ($type === null || $this->_items[$name]->getType() == $type)) {
+				$name = $assignment->itemName;
+				if (isset($this->_items[$name]) && ($type === null || $this->_items[$name]->type == $type)) {
 					$items[$name] = $this->_items[$name];
 				}
 			}
@@ -301,7 +307,14 @@ class PhpManager extends Manager
 		if (isset($this->_items[$name])) {
 			throw new Exception('Unable to add an item whose name is the same as an existing item.');
 		}
-		return $this->_items[$name] = new Item($this, $name, $type, $description, $bizRule, $data);
+		return $this->_items[$name] = new Item(array(
+			'manager' => $this,
+			'name' => $name,
+			'type' => $type,
+			'description' => $description,
+			'bizRule' => $bizRule,
+			'data' => $data,
+		));
 	}
 
 	/**
@@ -390,10 +403,10 @@ class PhpManager extends Manager
 		foreach ($this->_items as $name => $item) {
 			/** @var $item Item */
 			$items[$name] = array(
-				'type' => $item->getType(),
-				'description' => $item->getDescription(),
-				'bizRule' => $item->getBizRule(),
-				'data' => $item->getData(),
+				'type' => $item->type,
+				'description' => $item->description,
+				'bizRule' => $item->bizRule,
+				'data' => $item->data,
 			);
 			if (isset($this->_children[$name])) {
 				foreach ($this->_children[$name] as $child) {
@@ -408,8 +421,8 @@ class PhpManager extends Manager
 				/** @var $assignment Assignment */
 				if (isset($items[$name])) {
 					$items[$name]['assignments'][$userId] = array(
-						'bizRule' => $assignment->getBizRule(),
-						'data' => $assignment->getData(),
+						'bizRule' => $assignment->bizRule,
+						'data' => $assignment->data,
 					);
 				}
 			}
@@ -428,7 +441,14 @@ class PhpManager extends Manager
 		$items = $this->loadFromFile($this->authFile);
 
 		foreach ($items as $name => $item) {
-			$this->_items[$name] = new Item($this, $name, $item['type'], $item['description'], $item['bizRule'], $item['data']);
+			$this->_items[$name] = new Item(array(
+				'manager' => $this,
+				'name' => $name,
+				'type' => $item['type'],
+				'description' => $item['description'],
+				'bizRule' => $item['bizRule'],
+				'data' => $item['data'],
+			));
 		}
 
 		foreach ($items as $name => $item) {
@@ -441,8 +461,14 @@ class PhpManager extends Manager
 			}
 			if (isset($item['assignments'])) {
 				foreach ($item['assignments'] as $userId => $assignment) {
-					$this->_assignments[$userId][$name] = new Assignment($this, $name, $userId, $assignment['bizRule'], $assignment['data']);
-				}
+					$this->_assignments[$userId][$name] = new Assignment(array(
+						'manager' => $this,
+						'userId' => $userId,
+						'itemName' => $name,
+						'bizRule' => $assignment['bizRule'],
+						'data' => $assignment['data'],
+					));
+ 				}
 			}
 		}
 	}
diff --git a/yii/rbac/schema-mssql.sql b/yii/rbac/schema-mssql.sql
index a1170b1..923417a 100644
--- a/yii/rbac/schema-mssql.sql
+++ b/yii/rbac/schema-mssql.sql
@@ -18,9 +18,10 @@ create table [tbl_auth_item]
    [name]                 varchar(64) not null,
    [type]                 integer not null,
    [description]          text,
-   [bizrule]              text,
+   [biz_rule]              text,
    [data]                 text,
-   primary key ([name])
+   primary key ([name]),
+   key [type] ([type])
 );
 
 create table [tbl_auth_item_child]
@@ -36,7 +37,7 @@ create table [tbl_auth_assignment]
 (
    [item_name]            varchar(64) not null,
    [user_id]              varchar(64) not null,
-   [bizrule]              text,
+   [biz_rule]              text,
    [data]                 text,
    primary key ([item_name],[user_id]),
    foreign key ([item_name]) references [tbl_auth_item] ([name]) on delete cascade on update cascade
diff --git a/yii/rbac/schema-mysql.sql b/yii/rbac/schema-mysql.sql
index aa8015b..1530409 100644
--- a/yii/rbac/schema-mysql.sql
+++ b/yii/rbac/schema-mysql.sql
@@ -18,9 +18,10 @@ create table `tbl_auth_item`
    `name`                 varchar(64) not null,
    `type`                 integer not null,
    `description`          text,
-   `bizrule`              text,
+   `biz_rule`              text,
    `data`                 text,
-   primary key (`name`)
+   primary key (`name`),
+   key `type` (`type`)
 ) engine InnoDB;
 
 create table `tbl_auth_item_child`
@@ -36,7 +37,7 @@ create table `tbl_auth_assignment`
 (
    `item_name`            varchar(64) not null,
    `user_id`              varchar(64) not null,
-   `bizrule`              text,
+   `biz_rule`              text,
    `data`                 text,
    primary key (`item_name`,`user_id`),
    foreign key (`item_name`) references `tbl_auth_item` (`name`) on delete cascade on update cascade
diff --git a/yii/rbac/schema-oci.sql b/yii/rbac/schema-oci.sql
index 16b7964..78dbb3d 100644
--- a/yii/rbac/schema-oci.sql
+++ b/yii/rbac/schema-oci.sql
@@ -18,9 +18,10 @@ create table "tbl_auth_item"
    "name"                 varchar(64) not null,
    "type"                 integer not null,
    "description"          text,
-   "bizrule"              text,
+   "biz_rule"              text,
    "data"                 text,
-   primary key ("name")
+   primary key ("name"),
+   key "type" ("type")
 );
 
 create table "tbl_auth_item_child"
@@ -36,7 +37,7 @@ create table "tbl_auth_assignment"
 (
    "item_name"            varchar(64) not null,
    "user_id"              varchar(64) not null,
-   "bizrule"              text,
+   "biz_rule"              text,
    "data"                 text,
    primary key ("item_name","user_id"),
    foreign key ("item_name") references "tbl_auth_item" ("name") on delete cascade on update cascade
diff --git a/yii/rbac/schema-pgsql.sql b/yii/rbac/schema-pgsql.sql
index 16b7964..78dbb3d 100644
--- a/yii/rbac/schema-pgsql.sql
+++ b/yii/rbac/schema-pgsql.sql
@@ -18,9 +18,10 @@ create table "tbl_auth_item"
    "name"                 varchar(64) not null,
    "type"                 integer not null,
    "description"          text,
-   "bizrule"              text,
+   "biz_rule"              text,
    "data"                 text,
-   primary key ("name")
+   primary key ("name"),
+   key "type" ("type")
 );
 
 create table "tbl_auth_item_child"
@@ -36,7 +37,7 @@ create table "tbl_auth_assignment"
 (
    "item_name"            varchar(64) not null,
    "user_id"              varchar(64) not null,
-   "bizrule"              text,
+   "biz_rule"              text,
    "data"                 text,
    primary key ("item_name","user_id"),
    foreign key ("item_name") references "tbl_auth_item" ("name") on delete cascade on update cascade
diff --git a/yii/rbac/schema-sqlite.sql b/yii/rbac/schema-sqlite.sql
index 668196e..2b79bbf 100644
--- a/yii/rbac/schema-sqlite.sql
+++ b/yii/rbac/schema-sqlite.sql
@@ -18,9 +18,10 @@ create table 'tbl_auth_item'
    "name"                 varchar(64) not null,
    "type"                 integer not null,
    "description"          text,
-   "bizrule"              text,
+   "biz_rule"              text,
    "data"                 text,
-   primary key ("name")
+   primary key ("name"),
+   key "type" ("type")
 );
 
 create table 'tbl_auth_item_child'
@@ -36,7 +37,7 @@ create table 'tbl_auth_assignment'
 (
    "item_name"            varchar(64) not null,
    "user_id"              varchar(64) not null,
-   "bizrule"              text,
+   "biz_rule"              text,
    "data"                 text,
    primary key ("item_name","user_id"),
    foreign key ("item_name") references 'tbl_auth_item' ("name") on delete cascade on update cascade