diff --git a/framework/db/redis/ActiveQuery.php b/framework/db/redis/ActiveQuery.php
index b387421..1fbde46 100644
--- a/framework/db/redis/ActiveQuery.php
+++ b/framework/db/redis/ActiveQuery.php
@@ -80,8 +80,19 @@ class ActiveQuery extends \yii\base\Component
 	 */
 	public $primaryKeys;
 
+	/**
+	 * List of multiple pks must be zero based
+	 *
+	 * @param $primaryKeys
+	 * @return ActiveQuery
+	 */
 	public function primaryKeys($primaryKeys) {
-		$this->primaryKeys = $primaryKeys;
+		if (is_array($primaryKeys) && isset($primaryKeys[0])) {
+			$this->primaryKeys = $primaryKeys;
+		} else {
+			$this->primaryKeys = array($primaryKeys);
+		}
+
 		return $this;
 	}
 
@@ -103,7 +114,12 @@ class ActiveQuery extends \yii\base\Component
 		foreach($primaryKeys as $pk) {
 			$key = $modelClass::tableName() . ':a:' . (is_array($pk) ? implode('-', $pk) : $pk); // TODO escape PK glue
 			// get attributes
-			$rows[] = $db->executeCommand('HGETALL', array($key));
+			$data = $db->executeCommand('HGETALL', array($key));
+			$row = array();
+			for($i=0;$i<count($data);) {
+				$row[$data[$i++]] = $data[$i++];
+			}
+			$rows[] = $row;
 		}
 		if ($rows !== array()) {
 			$models = $this->createModels($rows);
@@ -134,9 +150,15 @@ class ActiveQuery extends \yii\base\Component
 		$pk = reset($primaryKeys);
 		$key = $modelClass::tableName() . ':a:' . (is_array($pk) ? implode('-', $pk) : $pk); // TODO escape PK glue
 		// get attributes
-		$row = $db->executeCommand('HGETALL', array($key));
-// TODO check for empty list if key does not exist
-		if ($row !== false && !$this->asArray) {
+		$data = $db->executeCommand('HGETALL', array($key));
+		if ($data === array()) {
+			return null;
+		}
+		$row = array();
+		for($i=0;$i<count($data);) {
+			$row[$data[$i++]] = $data[$i++];
+		}
+		if (!$this->asArray) {
 			/** @var $class ActiveRecord */
 			$class = $this->modelClass;
 			$model = $class::create($row);
@@ -147,7 +169,7 @@ class ActiveQuery extends \yii\base\Component
 			}
 			return $model;
 		} else {
-			return $row === false ? null : $row;
+			return $row;
 		}
 	}
 
diff --git a/framework/db/redis/ActiveRecord.php b/framework/db/redis/ActiveRecord.php
index af78331..d3faf21 100644
--- a/framework/db/redis/ActiveRecord.php
+++ b/framework/db/redis/ActiveRecord.php
@@ -10,7 +10,12 @@
 
 namespace yii\db\redis;
 
+use yii\base\InvalidConfigException;
+use yii\base\InvalidParamException;
 use yii\base\NotSupportedException;
+use yii\base\UnknownMethodException;
+use yii\db\Exception;
+use yii\db\TableSchema;
 
 /**
  * ActiveRecord is the base class for classes representing relational data in terms of objects.
@@ -23,16 +28,6 @@ use yii\base\NotSupportedException;
 abstract class ActiveRecord extends \yii\db\ActiveRecord
 {
 	/**
-	 * Returns the list of all attribute names of the model.
-	 * The default implementation will return all column names of the table associated with this AR class.
-	 * @return array list of attribute names.
-	 */
-	public function attributes() // TODO: refactor should be abstract in an ActiveRecord base class
-	{
-		return array();
-	}
-
-	/**
 	 * Returns the database connection used by this AR class.
 	 * By default, the "redis" application component is used as the database connection.
 	 * You may override this method if you want to use a different database connection.
@@ -119,7 +114,7 @@ abstract class ActiveRecord extends \yii\db\ActiveRecord
 	 */
 	public static function getTableSchema()
 	{
-		throw new NotSupportedException('getTableSchema() is not supported by redis ActiveRecord as there is no schema in redis DB. Schema is defined by AR class itself');
+		throw new InvalidConfigException(__CLASS__.'::getTableSchema() needs to be overridden in subclasses and return a TableSchema.');
 	}
 
 	/**
@@ -168,16 +163,17 @@ abstract class ActiveRecord extends \yii\db\ActiveRecord
 			$db = static::getDb();
 			$values = $this->getDirtyAttributes($attributes);
 			$pk = array();
-			if ($values === array()) {
+//			if ($values === array()) {
 				foreach ($this->primaryKey() as $key) {
 					$pk[$key] = $values[$key] = $this->getAttribute($key);
 					if ($pk[$key] === null) {
-						$pk[$key] = $db->executeCommand('INCR', array(static::tableName() . ':s:', $key));
+						$pk[$key] = $values[$key] = $db->executeCommand('INCR', array(static::tableName() . ':s:' . $key));
+						$this->setAttribute($key, $values[$key]);
 					}
 				}
-			}
+//			}
 			// save pk in a findall pool
-			$db->executeCommand('RPUSH', array(static::tableName(), $pk));
+			$db->executeCommand('RPUSH', array(static::tableName(), implode('-', $pk))); // TODO escape PK glue
 
 			$key = static::tableName() . ':a:' . implode('-', $pk); // TODO escape PK glue
 			// save attributes
@@ -252,12 +248,15 @@ abstract class ActiveRecord extends \yii\db\ActiveRecord
 	 */
 	public static function updateAllCounters($counters, $condition = '', $params = array())
 	{
+		if (is_array($condition) && !isset($condition[0])) { // TODO do this in all *All methods
+			$condition = array($condition);
+		}
 		$db = static::getDb();
 		if ($condition==='') {
 			$condition = $db->executeCommand('LRANGE', array(static::tableName(), 0, -1));
 		}
 		$n=0;
-		foreach($condition as $pk) {
+		foreach($condition as $pk) { // TODO allow multiple pks as condition
 			$key = static::tableName() . ':a:' . (is_array($pk) ? implode('-', $pk) : $pk); // TODO escape PK glue
 			foreach($counters as $attribute => $value) {
 				$db->executeCommand('HINCRBY', array($key, $attribute, $value));
@@ -297,28 +296,269 @@ abstract class ActiveRecord extends \yii\db\ActiveRecord
 				$pk = implode('-', $pk);
 			}
 			$db->executeCommand('LREM', array(static::tableName(), 0, $pk)); // TODO escape PK glue
-			$attributeKeys[] = static::tableName() . ':' . $pk . ':a'; // TODO escape PK glue
+			$attributeKeys[] = static::tableName() . ':a:' . $pk; // TODO escape PK glue
 		}
 		return $db->executeCommand('DEL', $attributeKeys);
 	}
 
 	/**
-	 * Returns the primary key name(s) for this AR class.
-	 * The default implementation will return the primary key(s) as declared
-	 * in the DB table that is associated with this AR class.
+	 * Declares a `has-one` relation.
+	 * The declaration is returned in terms of an [[ActiveRelation]] instance
+	 * through which the related record can be queried and retrieved back.
+	 *
+	 * A `has-one` relation means that there is at most one related record matching
+	 * the criteria set by this relation, e.g., a customer has one country.
+	 *
+	 * For example, to declare the `country` relation for `Customer` class, we can write
+	 * the following code in the `Customer` class:
+	 *
+	 * ~~~
+	 * public function getCountry()
+	 * {
+	 *     return $this->hasOne('Country', array('id' => 'country_id'));
+	 * }
+	 * ~~~
+	 *
+	 * Note that in the above, the 'id' key in the `$link` parameter refers to an attribute name
+	 * in the related class `Country`, while the 'country_id' value refers to an attribute name
+	 * in the current AR class.
+	 *
+	 * Call methods declared in [[ActiveRelation]] to further customize the relation.
+	 *
+	 * @param string $class the class name of the related record
+	 * @param array $link the primary-foreign key constraint. The keys of the array refer to
+	 * the columns in the table associated with the `$class` model, while the values of the
+	 * array refer to the corresponding columns in the table associated with this AR class.
+	 * @return ActiveRelation the relation object.
+	 */
+	public function hasOne($class, $link)
+	{
+		return new ActiveRelation(array(
+			'modelClass' => $this->getNamespacedClass($class),
+			'primaryModel' => $this,
+			'link' => $link,
+			'multiple' => false,
+		));
+	}
+
+	/**
+	 * Declares a `has-many` relation.
+	 * The declaration is returned in terms of an [[ActiveRelation]] instance
+	 * through which the related record can be queried and retrieved back.
+	 *
+	 * A `has-many` relation means that there are multiple related records matching
+	 * the criteria set by this relation, e.g., a customer has many orders.
+	 *
+	 * For example, to declare the `orders` relation for `Customer` class, we can write
+	 * the following code in the `Customer` class:
+	 *
+	 * ~~~
+	 * public function getOrders()
+	 * {
+	 *     return $this->hasMany('Order', array('customer_id' => 'id'));
+	 * }
+	 * ~~~
+	 *
+	 * Note that in the above, the 'customer_id' key in the `$link` parameter refers to
+	 * an attribute name in the related class `Order`, while the 'id' value refers to
+	 * an attribute name in the current AR class.
+	 *
+	 * @param string $class the class name of the related record
+	 * @param array $link the primary-foreign key constraint. The keys of the array refer to
+	 * the columns in the table associated with the `$class` model, while the values of the
+	 * array refer to the corresponding columns in the table associated with this AR class.
+	 * @return ActiveRelation the relation object.
+	 */
+	public function hasMany($class, $link)
+	{
+		return new ActiveRelation(array(
+			'modelClass' => $this->getNamespacedClass($class),
+			'primaryModel' => $this,
+			'link' => $link,
+			'multiple' => true,
+		));
+	}
+
+	/**
+	 * Returns the relation object with the specified name.
+	 * A relation is defined by a getter method which returns an [[ActiveRelation]] object.
+	 * It can be declared in either the Active Record class itself or one of its behaviors.
+	 * @param string $name the relation name
+	 * @return ActiveRelation the relation object
+	 * @throws InvalidParamException if the named relation does not exist.
+	 */
+	public function getRelation($name)
+	{
+		$getter = 'get' . $name;
+		try {
+			$relation = $this->$getter();
+			if ($relation instanceof ActiveRelation) {
+				return $relation;
+			}
+		} catch (UnknownMethodException $e) {
+		}
+		throw new InvalidParamException(get_class($this) . ' has no relation named "' . $name . '".');
+	}
+
+	/**
+	 * Establishes the relationship between two models.
+	 *
+	 * The relationship is established by setting the foreign key value(s) in one model
+	 * to be the corresponding primary key value(s) in the other model.
+	 * The model with the foreign key will be saved into database without performing validation.
 	 *
-	 * If the DB table does not declare any primary key, you should override
-	 * this method to return the attributes that you want to use as primary keys
-	 * for this AR class.
+	 * If the relationship involves a pivot table, a new row will be inserted into the
+	 * pivot table which contains the primary key values from both models.
+	 *
+	 * Note that this method requires that the primary key value is not null.
+	 *
+	 * @param string $name the name of the relationship
+	 * @param ActiveRecord $model the model to be linked with the current one.
+	 * @param array $extraColumns additional column values to be saved into the pivot table.
+	 * This parameter is only meaningful for a relationship involving a pivot table
+	 * (i.e., a relation set with `[[ActiveRelation::via()]]` or `[[ActiveRelation::viaTable()]]`.)
+	 * @throws InvalidCallException if the method is unable to link two models.
+	 */
+	public function link($name, $model, $extraColumns = array())
+	{
+		// TODO
+		$relation = $this->getRelation($name);
+
+		if ($relation->via !== null) {
+			if (is_array($relation->via)) {
+				/** @var $viaRelation ActiveRelation */
+				list($viaName, $viaRelation) = $relation->via;
+				/** @var $viaClass ActiveRecord */
+				$viaClass = $viaRelation->modelClass;
+				$viaTable = $viaClass::tableName();
+				// unset $viaName so that it can be reloaded to reflect the change
+				unset($this->_related[strtolower($viaName)]);
+			} else {
+				$viaRelation = $relation->via;
+				$viaTable = reset($relation->via->from);
+			}
+			$columns = array();
+			foreach ($viaRelation->link as $a => $b) {
+				$columns[$a] = $this->$b;
+			}
+			foreach ($relation->link as $a => $b) {
+				$columns[$b] = $model->$a;
+			}
+			foreach ($extraColumns as $k => $v) {
+				$columns[$k] = $v;
+			}
+			static::getDb()->createCommand()
+				->insert($viaTable, $columns)->execute();
+		} else {
+			$p1 = $model->isPrimaryKey(array_keys($relation->link));
+			$p2 = $this->isPrimaryKey(array_values($relation->link));
+			if ($p1 && $p2) {
+				if ($this->getIsNewRecord() && $model->getIsNewRecord()) {
+					throw new InvalidCallException('Unable to link models: both models are newly created.');
+				} elseif ($this->getIsNewRecord()) {
+					$this->bindModels(array_flip($relation->link), $this, $model);
+				} else {
+					$this->bindModels($relation->link, $model, $this);
+				}
+			} elseif ($p1) {
+				$this->bindModels(array_flip($relation->link), $this, $model);
+			} elseif ($p2) {
+				$this->bindModels($relation->link, $model, $this);
+			} else {
+				throw new InvalidCallException('Unable to link models: the link does not involve any primary key.');
+			}
+		}
+
+		// update lazily loaded related objects
+		if (!$relation->multiple) {
+			$this->_related[$name] = $model;
+		} elseif (isset($this->_related[$name])) {
+			if ($relation->indexBy !== null) {
+				$indexBy = $relation->indexBy;
+				$this->_related[$name][$model->$indexBy] = $model;
+			} else {
+				$this->_related[$name][] = $model;
+			}
+		}
+	}
+
+	/**
+	 * Destroys the relationship between two models.
 	 *
-	 * Note that an array should be returned even for a table with single primary key.
+	 * The model with the foreign key of the relationship will be deleted if `$delete` is true.
+	 * Otherwise, the foreign key will be set null and the model will be saved without validation.
 	 *
-	 * @return string[] the primary keys of the associated database table.
+	 * @param string $name the name of the relationship.
+	 * @param ActiveRecord $model the model to be unlinked from the current one.
+	 * @param boolean $delete whether to delete the model that contains the foreign key.
+	 * If false, the model's foreign key will be set null and saved.
+	 * If true, the model containing the foreign key will be deleted.
+	 * @throws InvalidCallException if the models cannot be unlinked
 	 */
-	public static function primaryKey() // TODO: refactor should be abstract in an ActiveRecord base class
+	public function unlink($name, $model, $delete = false)
 	{
-		return array();
+		// TODO
+		$relation = $this->getRelation($name);
+
+		if ($relation->via !== null) {
+			if (is_array($relation->via)) {
+				/** @var $viaRelation ActiveRelation */
+				list($viaName, $viaRelation) = $relation->via;
+				/** @var $viaClass ActiveRecord */
+				$viaClass = $viaRelation->modelClass;
+				$viaTable = $viaClass::tableName();
+				unset($this->_related[strtolower($viaName)]);
+			} else {
+				$viaRelation = $relation->via;
+				$viaTable = reset($relation->via->from);
+			}
+			$columns = array();
+			foreach ($viaRelation->link as $a => $b) {
+				$columns[$a] = $this->$b;
+			}
+			foreach ($relation->link as $a => $b) {
+				$columns[$b] = $model->$a;
+			}
+			$command = static::getDb()->createCommand();
+			if ($delete) {
+				$command->delete($viaTable, $columns)->execute();
+			} else {
+				$nulls = array();
+				foreach (array_keys($columns) as $a) {
+					$nulls[$a] = null;
+				}
+				$command->update($viaTable, $nulls, $columns)->execute();
+			}
+		} else {
+			$p1 = $model->isPrimaryKey(array_keys($relation->link));
+			$p2 = $this->isPrimaryKey(array_values($relation->link));
+			if ($p1 && $p2 || $p2) {
+				foreach ($relation->link as $a => $b) {
+					$model->$a = null;
+				}
+				$delete ? $model->delete() : $model->save(false);
+			} elseif ($p1) {
+				foreach ($relation->link as $b) {
+					$this->$b = null;
+				}
+				$delete ? $this->delete() : $this->save(false);
+			} else {
+				throw new InvalidCallException('Unable to unlink models: the link does not involve any primary key.');
+			}
+		}
+
+		if (!$relation->multiple) {
+			unset($this->_related[$name]);
+		} elseif (isset($this->_related[$name])) {
+			/** @var $b ActiveRecord */
+			foreach ($this->_related[$name] as $a => $b) {
+				if ($model->getPrimaryKey() == $b->getPrimaryKey()) {
+					unset($this->_related[$name][$a]);
+				}
+			}
+		}
 	}
 
+
 	// TODO implement link and unlink
 }
diff --git a/framework/db/redis/ActiveRelation.php b/framework/db/redis/ActiveRelation.php
index d3d5c5a..e01f3a4 100644
--- a/framework/db/redis/ActiveRelation.php
+++ b/framework/db/redis/ActiveRelation.php
@@ -10,6 +10,8 @@
 
 namespace yii\db\redis;
 
+use yii\base\NotSupportedException;
+
 /**
  * ActiveRecord is the base class for classes representing relational data in terms of objects.
  *
@@ -17,7 +19,231 @@ namespace yii\db\redis;
  * @author Carsten Brandt <mail@cebe.cc>
  * @since 2.0
  */
-class ActiveRelation extends \yii\db\ActiveRelation
+class ActiveRelation extends \yii\db\redis\ActiveQuery
 {
-	// TODO implement
+	/**
+	 * @var boolean whether this relation should populate all query results into AR instances.
+	 * If false, only the first row of the results will be retrieved.
+	 */
+	public $multiple;
+	/**
+	 * @var ActiveRecord the primary model that this relation is associated with.
+	 * This is used only in lazy loading with dynamic query options.
+	 */
+	public $primaryModel;
+	/**
+	 * @var array the columns of the primary and foreign tables that establish the relation.
+	 * The array keys must be columns of the table for this relation, and the array values
+	 * must be the corresponding columns from the primary table.
+	 * Do not prefix or quote the column names as this will be done automatically by Yii.
+	 */
+	public $link;
+	/**
+	 * @var array|ActiveRelation the query associated with the pivot table. Please call [[via()]]
+	 * or [[viaTable()]] to set this property instead of directly setting it.
+	 */
+	public $via;
+
+	/**
+	 * Specifies the relation associated with the pivot table.
+	 * @param string $relationName the relation name. This refers to a relation declared in [[primaryModel]].
+	 * @param callable $callable a PHP callback for customizing the relation associated with the pivot table.
+	 * Its signature should be `function($query)`, where `$query` is the query to be customized.
+	 * @return ActiveRelation the relation object itself.
+	 */
+	public function via($relationName, $callable = null)
+	{
+		$relation = $this->primaryModel->getRelation($relationName);
+		$this->via = array($relationName, $relation);
+		if ($callable !== null) {
+			call_user_func($callable, $relation);
+		}
+		return $this;
+	}
+
+	/**
+	 * Specifies the pivot table.
+	 * @param string $tableName the name of the pivot table.
+	 * @param array $link the link between the pivot table and the table associated with [[primaryModel]].
+	 * The keys of the array represent the columns in the pivot table, and the values represent the columns
+	 * in the [[primaryModel]] table.
+	 * @param callable $callable a PHP callback for customizing the relation associated with the pivot table.
+	 * Its signature should be `function($query)`, where `$query` is the query to be customized.
+	 * @return ActiveRelation
+	 * /
+	public function viaTable($tableName, $link, $callable = null)
+	{
+		$relation = new ActiveRelation(array(
+			'modelClass' => get_class($this->primaryModel),
+			'from' => array($tableName),
+			'link' => $link,
+			'multiple' => true,
+			'asArray' => true,
+		));
+		$this->via = $relation;
+		if ($callable !== null) {
+			call_user_func($callable, $relation);
+		}
+		return $this;
+	}*/
+
+	/**
+	 * Finds the related records and populates them into the primary models.
+	 * This method is internally by [[ActiveQuery]]. Do not call it directly.
+	 * @param string $name the relation name
+	 * @param array $primaryModels primary models
+	 * @return array the related models
+	 * @throws InvalidConfigException
+	 */
+	public function findWith($name, &$primaryModels)
+	{
+		if (!is_array($this->link)) {
+			throw new InvalidConfigException('Invalid link: it must be an array of key-value pairs.');
+		}
+
+		if ($this->via instanceof self) {
+			// TODO
+			// via pivot table
+			/** @var $viaQuery ActiveRelation */
+			$viaQuery = $this->via;
+			$viaModels = $viaQuery->findPivotRows($primaryModels);
+			$this->filterByModels($viaModels);
+		} elseif (is_array($this->via)) {
+			// TODO
+			// via relation
+			/** @var $viaQuery ActiveRelation */
+			list($viaName, $viaQuery) = $this->via;
+			$viaQuery->primaryModel = null;
+			$viaModels = $viaQuery->findWith($viaName, $primaryModels);
+			$this->filterByModels($viaModels);
+		} else {
+			$this->filterByModels($primaryModels);
+		}
+
+		if (count($primaryModels) === 1 && !$this->multiple) {
+			$model = $this->one();
+			foreach ($primaryModels as $i => $primaryModel) {
+				if ($primaryModel instanceof ActiveRecord) {
+					$primaryModel->populateRelation($name, $model);
+				} else {
+					$primaryModels[$i][$name] = $model;
+				}
+			}
+			return array($model);
+		} else {
+			$models = $this->all();
+			if (isset($viaModels, $viaQuery)) {
+				$buckets = $this->buildBuckets($models, $this->link, $viaModels, $viaQuery->link);
+			} else {
+				$buckets = $this->buildBuckets($models, $this->link);
+			}
+
+			$link = array_values(isset($viaQuery) ? $viaQuery->link : $this->link);
+			foreach ($primaryModels as $i => $primaryModel) {
+				$key = $this->getModelKey($primaryModel, $link);
+				$value = isset($buckets[$key]) ? $buckets[$key] : ($this->multiple ? array() : null);
+				if ($primaryModel instanceof ActiveRecord) {
+					$primaryModel->populateRelation($name, $value);
+				} else {
+					$primaryModels[$i][$name] = $value;
+				}
+			}
+			return $models;
+		}
+	}
+
+	/**
+	 * @param array $models
+	 * @param array $link
+	 * @param array $viaModels
+	 * @param array $viaLink
+	 * @return array
+	 */
+	private function buildBuckets($models, $link, $viaModels = null, $viaLink = null)
+	{
+		$buckets = array();
+		$linkKeys = array_keys($link);
+		foreach ($models as $i => $model) {
+			$key = $this->getModelKey($model, $linkKeys);
+			if ($this->indexBy !== null) {
+				$buckets[$key][$i] = $model;
+			} else {
+				$buckets[$key][] = $model;
+			}
+		}
+
+		if ($viaModels !== null) {
+			$viaBuckets = array();
+			$viaLinkKeys = array_keys($viaLink);
+			$linkValues = array_values($link);
+			foreach ($viaModels as $viaModel) {
+				$key1 = $this->getModelKey($viaModel, $viaLinkKeys);
+				$key2 = $this->getModelKey($viaModel, $linkValues);
+				if (isset($buckets[$key2])) {
+					foreach ($buckets[$key2] as $i => $bucket) {
+						if ($this->indexBy !== null) {
+							$viaBuckets[$key1][$i] = $bucket;
+						} else {
+							$viaBuckets[$key1][] = $bucket;
+						}
+					}
+				}
+			}
+			$buckets = $viaBuckets;
+		}
+
+		if (!$this->multiple) {
+			foreach ($buckets as $i => $bucket) {
+				$buckets[$i] = reset($bucket);
+			}
+		}
+		return $buckets;
+	}
+
+	/**
+	 * @param ActiveRecord|array $model
+	 * @param array $attributes
+	 * @return string
+	 */
+	private function getModelKey($model, $attributes)
+	{
+		if (count($attributes) > 1) {
+			$key = array();
+			foreach ($attributes as $attribute) {
+				$key[] = $model[$attribute];
+			}
+			return serialize($key);
+		} else {
+			$attribute = reset($attributes);
+			return $model[$attribute];
+		}
+	}
+
+
+	/**
+	 * @param array $models
+	 */
+	private function filterByModels($models)
+	{
+		$attributes = array_keys($this->link);
+		$values = array();
+		if (count($attributes) ===1) {
+			// single key
+			$attribute = reset($this->link);
+			foreach ($models as $model) {
+				$values[] = $model[$attribute];
+			}
+		} else {
+			// composite keys
+			foreach ($models as $model) {
+				$v = array();
+				foreach ($this->link as $attribute => $link) {
+					$v[$attribute] = $model[$link];
+				}
+				$values[] = $v;
+			}
+		}
+		$this->primaryKeys($values);
+	}
+
 }
diff --git a/framework/db/redis/Connection.php b/framework/db/redis/Connection.php
index 96ab288..0ea2c52 100644
--- a/framework/db/redis/Connection.php
+++ b/framework/db/redis/Connection.php
@@ -12,7 +12,7 @@ namespace yii\db\redis;
 use \yii\base\Component;
 use yii\base\InvalidConfigException;
 use \yii\db\Exception;
-use yii\util\StringHelper;
+use yii\helpers\StringHelper;
 
 /**
  *
diff --git a/tests/unit/data/ar/redis/ActiveRecord.php b/tests/unit/data/ar/redis/ActiveRecord.php
new file mode 100644
index 0000000..7419479
--- /dev/null
+++ b/tests/unit/data/ar/redis/ActiveRecord.php
@@ -0,0 +1,26 @@
+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yiiunit\data\ar\redis;
+
+use yii\db\redis\Connection;
+
+/**
+ * ActiveRecord is ...
+ *
+ * @author Qiang Xue <qiang.xue@gmail.com>
+ * @since 2.0
+ */
+class ActiveRecord extends \yii\db\redis\ActiveRecord
+{
+	public static $db;
+
+	public static function getDb()
+	{
+		return self::$db;
+	}
+}
\ No newline at end of file
diff --git a/tests/unit/data/ar/redis/Customer.php b/tests/unit/data/ar/redis/Customer.php
new file mode 100644
index 0000000..9e7ea62
--- /dev/null
+++ b/tests/unit/data/ar/redis/Customer.php
@@ -0,0 +1,35 @@
+<?php
+
+namespace yiiunit\data\ar\redis;
+
+use yii\db\TableSchema;
+
+class Customer extends ActiveRecord
+{
+	const STATUS_ACTIVE = 1;
+	const STATUS_INACTIVE = 2;
+
+	public $status2;
+
+	/**
+	 * @return \yii\db\redis\ActiveRelation
+	 */
+	public function getOrders()
+	{
+		return $this->hasMany('Order', array('customer_id' => 'id'));
+	}
+
+	public static function getTableSchema()
+	{
+		return new TableSchema(array(
+			'primaryKey' => array('id'),
+			'columns' => array(
+				'id' => 'integer',
+				'email' => 'string',
+				'name' => 'string',
+				'address' => 'string',
+				'status' => 'integer'
+			)
+		));
+	}
+}
\ No newline at end of file
diff --git a/tests/unit/data/ar/redis/Item.php b/tests/unit/data/ar/redis/Item.php
new file mode 100644
index 0000000..6dbaa2f
--- /dev/null
+++ b/tests/unit/data/ar/redis/Item.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace yiiunit\data\ar\redis;
+
+use yii\db\TableSchema;
+
+class Item extends ActiveRecord
+{
+	public static function tableName()
+	{
+		return 'tbl_item';
+	}
+
+	public static function getTableSchema()
+	{
+		return new TableSchema(array(
+			'primaryKey' => array('id'),
+			'columns' => array(
+				'id' => 'integer',
+				'name' => 'string',
+				'category_id' => 'integer'
+			)
+		));
+	}
+}
\ No newline at end of file
diff --git a/tests/unit/data/ar/redis/Order.php b/tests/unit/data/ar/redis/Order.php
new file mode 100644
index 0000000..d97a3af
--- /dev/null
+++ b/tests/unit/data/ar/redis/Order.php
@@ -0,0 +1,63 @@
+<?php
+
+namespace yiiunit\data\ar\redis;
+
+use yii\db\TableSchema;
+
+class Order extends ActiveRecord
+{
+	public static function tableName()
+	{
+		return 'tbl_order';
+	}
+
+	public function getCustomer()
+	{
+		return $this->hasOne('Customer', array('id' => 'customer_id'));
+	}
+
+	public function getOrderItems()
+	{
+		return $this->hasMany('OrderItem', array('order_id' => 'id'));
+	}
+
+	public function getItems()
+	{
+		return $this->hasMany('Item', array('id' => 'item_id'))
+			->via('orderItems', function($q) {
+				// additional query configuration
+			});
+	}
+
+	public function getBooks()
+	{
+		return $this->hasMany('Item', array('id' => 'item_id'))
+			->via('orderItems', array('order_id' => 'id'));
+			//->where(array('category_id' => 1));
+	}
+
+	public function beforeSave($insert)
+	{
+		if (parent::beforeSave($insert)) {
+			$this->create_time = time();
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+
+	public static function getTableSchema()
+	{
+		return new TableSchema(array(
+			'primaryKey' => array('id'),
+			'columns' => array(
+				'id' => 'integer',
+				'customer_id' => 'integer',
+				'create_time' => 'integer',
+				'total' => 'decimal',
+			)
+		));
+	}
+
+}
\ No newline at end of file
diff --git a/tests/unit/data/ar/redis/OrderItem.php b/tests/unit/data/ar/redis/OrderItem.php
new file mode 100644
index 0000000..257b9b0
--- /dev/null
+++ b/tests/unit/data/ar/redis/OrderItem.php
@@ -0,0 +1,36 @@
+<?php
+
+namespace yiiunit\data\ar\redis;
+
+use yii\db\TableSchema;
+
+class OrderItem extends ActiveRecord
+{
+	public static function tableName()
+	{
+		return 'tbl_order_item';
+	}
+
+	public function getOrder()
+	{
+		return $this->hasOne('Order', array('id' => 'order_id'));
+	}
+
+	public function getItem()
+	{
+		return $this->hasOne('Item', array('id' => 'item_id'));
+	}
+
+	public static function getTableSchema()
+	{
+		return new TableSchema(array(
+			'primaryKey' => array('order_id', 'item_id'),
+			'columns' => array(
+				'order_id' => 'integer',
+				'item_id' => 'integer',
+				'quantity' => 'integer',
+				'subtotal' => 'decimal',
+			)
+		));
+	}
+}
\ No newline at end of file
diff --git a/tests/unit/framework/db/redis/ActiveRecordTest.php b/tests/unit/framework/db/redis/ActiveRecordTest.php
new file mode 100644
index 0000000..74c5734
--- /dev/null
+++ b/tests/unit/framework/db/redis/ActiveRecordTest.php
@@ -0,0 +1,402 @@
+<?php
+
+namespace yiiunit\framework\db\redis;
+
+use yii\base\Exception;
+use yii\db\redis\ActiveQuery;
+use yiiunit\data\ar\redis\ActiveRecord;
+use yiiunit\data\ar\redis\Customer;
+use yiiunit\data\ar\redis\OrderItem;
+use yiiunit\data\ar\redis\Order;
+use yiiunit\data\ar\redis\Item;
+
+class ActiveRecordTest extends RedisTestCase
+{
+	public function setUp()
+	{
+		ActiveRecord::$db = $this->getConnection();
+
+		$customer = new Customer();
+		$customer->setAttributes(array('email' => 'user1@example.com', 'name' => 'user1', 'address' => 'address1', 'status' => 1), false);
+		$customer->save(false);
+		$customer = new Customer();
+		$customer->setAttributes(array('email' => 'user2@example.com', 'name' => 'user2', 'address' => 'address2', 'status' => 1), false);
+		$customer->save(false);
+		$customer = new Customer();
+		$customer->setAttributes(array('email' => 'user3@example.com', 'name' => 'user3', 'address' => 'address3', 'status' => 2), false);
+		$customer->save(false);
+
+//		INSERT INTO tbl_category (name) VALUES ('Books');
+//		INSERT INTO tbl_category (name) VALUES ('Movies');
+
+		$item = new Item();
+		$item->setAttributes(array('name' => 'Agile Web Application Development with Yii1.1 and PHP5', 'category_id' => 1), false);
+		$item->save(false);
+		$item = new Item();
+		$item->setAttributes(array('name' => 'Yii 1.1 Application Development Cookbook', 'category_id' => 1), false);
+		$item->save(false);
+		$item = new Item();
+		$item->setAttributes(array('name' => 'Ice Age', 'category_id' => 2), false);
+		$item->save(false);
+		$item = new Item();
+		$item->setAttributes(array('name' => 'Toy Story', 'category_id' => 2), false);
+		$item->save(false);
+		$item = new Item();
+		$item->setAttributes(array('name' => 'Cars', 'category_id' => 2), false);
+		$item->save(false);
+
+		$order = new Order();
+		$order->setAttributes(array('customer_id' => 1, 'create_time' => 1325282384, 'total' => 110.0), false);
+		$order->save(false);
+		$order = new Order();
+		$order->setAttributes(array('customer_id' => 2, 'create_time' => 1325334482, 'total' => 33.0), false);
+		$order->save(false);
+		$order = new Order();
+		$order->setAttributes(array('customer_id' => 2, 'create_time' => 1325502201, 'total' => 40.0), false);
+		$order->save(false);
+
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(array('order_id' => 1, 'item_id' => 1, 'quantity' => 1, 'subtotal' => 30.0), false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(array('order_id' => 1, 'item_id' => 2, 'quantity' => 2, 'subtotal' => 40.0), false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(array('order_id' => 2, 'item_id' => 4, 'quantity' => 1, 'subtotal' => 10.0), false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(array('order_id' => 2, 'item_id' => 5, 'quantity' => 1, 'subtotal' => 15.0), false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(array('order_id' => 2, 'item_id' => 3, 'quantity' => 1, 'subtotal' => 8.0), false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(array('order_id' => 3, 'item_id' => 2, 'quantity' => 1, 'subtotal' => 40.0), false);
+		$orderItem->save(false);
+
+		parent::setUp();
+	}
+
+	public function testFind()
+	{
+		// find one
+		$result = Customer::find();
+		$this->assertTrue($result instanceof ActiveQuery);
+		$customer = $result->one();
+		$this->assertTrue($customer instanceof Customer);
+
+		// find all
+		$customers = Customer::find()->all();
+		$this->assertEquals(3, count($customers));
+		$this->assertTrue($customers[0] instanceof Customer);
+		$this->assertTrue($customers[1] instanceof Customer);
+		$this->assertTrue($customers[2] instanceof Customer);
+
+		// find by a single primary key
+		$customer = Customer::find(2);
+		$this->assertTrue($customer instanceof Customer);
+		$this->assertEquals('user2', $customer->name);
+
+		// find by column values
+		$customer = Customer::find(array('id' => 2));
+		$this->assertTrue($customer instanceof Customer);
+		$this->assertEquals('user2', $customer->name);
+		$customer = Customer::find(array('id' => 5));
+		$this->assertNull($customer);
+
+		// find by attributes
+/*		$customer = Customer::find()->where(array('name' => 'user2'))->one();
+		$this->assertTrue($customer instanceof Customer);
+		$this->assertEquals(2, $customer->id);*/
+
+		// find custom column
+/*		$customer = Customer::find()->select(array('*', '(status*2) AS status2'))
+			->where(array('name' => 'user3'))->one();
+		$this->assertEquals(3, $customer->id);
+		$this->assertEquals(4, $customer->status2);*/
+
+		// find count, sum, average, min, max, scalar
+		$this->assertEquals(3, Customer::find()->count());
+/*		$this->assertEquals(2, Customer::find()->where('id=1 OR id=2')->count());
+		$this->assertEquals(6, Customer::find()->sum('id'));
+		$this->assertEquals(2, Customer::find()->average('id'));
+		$this->assertEquals(1, Customer::find()->min('id'));
+		$this->assertEquals(3, Customer::find()->max('id'));
+		$this->assertEquals(3, Customer::find()->select('COUNT(*)')->scalar());*/
+
+		// scope
+//		$this->assertEquals(2, Customer::find()->active()->count());
+
+		// asArray
+		$customer = Customer::find()->primaryKeys(array(2))->asArray()->one();
+		$this->assertEquals(array(
+			'id' => '2',
+			'email' => 'user2@example.com',
+			'name' => 'user2',
+			'address' => 'address2',
+			'status' => '1',
+		), $customer);
+
+		// indexBy
+		$customers = Customer::find()->indexBy('name')->all();
+		$this->assertEquals(3, count($customers));
+		$this->assertTrue($customers['user1'] instanceof Customer);
+		$this->assertTrue($customers['user2'] instanceof Customer);
+		$this->assertTrue($customers['user3'] instanceof Customer);
+	}
+
+	public function testFindLazy()
+	{
+		/** @var $customer Customer */
+		$customer = Customer::find(2);
+		$orders = $customer->orders;
+		$this->assertEquals(2, count($orders));
+
+		$orders = $customer->getOrders()->primaryKeys(array(3))->all();
+		$this->assertEquals(1, count($orders));
+		$this->assertEquals(3, $orders[0]->id);
+	}
+
+	public function testFindEager()
+	{
+		$customers = Customer::find()->with('orders')->all();
+		$this->assertEquals(3, count($customers));
+		$this->assertEquals(1, count($customers[0]->orders));
+		$this->assertEquals(2, count($customers[1]->orders));
+	}
+
+	public function testFindLazyVia()
+	{
+		/** @var $order Order */
+		$order = Order::find(1);
+		$this->assertEquals(1, $order->id);
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(1, $order->items[0]->id);
+		$this->assertEquals(2, $order->items[1]->id);
+
+		$order = Order::find(1);
+		$order->id = 100;
+		$this->assertEquals(array(), $order->items);
+	}
+
+	public function testFindEagerViaRelation()
+	{
+		$orders = Order::find()->with('items')->all();
+		$this->assertEquals(3, count($orders));
+		$order = $orders[0];
+		$this->assertEquals(1, $order->id);
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(1, $order->items[0]->id);
+		$this->assertEquals(2, $order->items[1]->id);
+	}
+
+/*	public function testFindLazyViaTable()
+	{
+		/** @var $order Order * /
+		$order = Order::find(1);
+		$this->assertEquals(1, $order->id);
+		$this->assertEquals(2, count($order->books));
+		$this->assertEquals(1, $order->items[0]->id);
+		$this->assertEquals(2, $order->items[1]->id);
+
+		$order = Order::find(2);
+		$this->assertEquals(2, $order->id);
+		$this->assertEquals(0, count($order->books));
+	}
+
+	public function testFindEagerViaTable()
+	{
+		$orders = Order::find()->with('books')->all();
+		$this->assertEquals(3, count($orders));
+
+		$order = $orders[0];
+		$this->assertEquals(1, $order->id);
+		$this->assertEquals(2, count($order->books));
+		$this->assertEquals(1, $order->books[0]->id);
+		$this->assertEquals(2, $order->books[1]->id);
+
+		$order = $orders[1];
+		$this->assertEquals(2, $order->id);
+		$this->assertEquals(0, count($order->books));
+
+		$order = $orders[2];
+		$this->assertEquals(3, $order->id);
+		$this->assertEquals(1, count($order->books));
+		$this->assertEquals(2, $order->books[0]->id);
+	}*/
+
+	public function testFindNestedRelation()
+	{
+		$customers = Customer::find()->with('orders', 'orders.items')->all();
+		$this->assertEquals(3, count($customers));
+		$this->assertEquals(1, count($customers[0]->orders));
+		$this->assertEquals(2, count($customers[1]->orders));
+		$this->assertEquals(0, count($customers[2]->orders));
+		$this->assertEquals(2, count($customers[0]->orders[0]->items));
+		$this->assertEquals(3, count($customers[1]->orders[0]->items));
+		$this->assertEquals(1, count($customers[1]->orders[1]->items));
+	}
+
+	public function testLink()
+	{
+		$customer = Customer::find(2);
+		$this->assertEquals(2, count($customer->orders));
+
+		// has many
+		$order = new Order;
+		$order->total = 100;
+		$this->assertTrue($order->isNewRecord);
+		$customer->link('orders', $order);
+		$this->assertEquals(3, count($customer->orders));
+		$this->assertFalse($order->isNewRecord);
+		$this->assertEquals(3, count($customer->getOrders()->all()));
+		$this->assertEquals(2, $order->customer_id);
+
+		// belongs to
+		$order = new Order;
+		$order->total = 100;
+		$this->assertTrue($order->isNewRecord);
+		$customer = Customer::find(1);
+		$this->assertNull($order->customer);
+		$order->link('customer', $customer);
+		$this->assertFalse($order->isNewRecord);
+		$this->assertEquals(1, $order->customer_id);
+		$this->assertEquals(1, $order->customer->id);
+
+		// via table
+		$order = Order::find(2);
+		$this->assertEquals(0, count($order->books));
+		$orderItem = OrderItem::find(array('order_id' => 2, 'item_id' => 1));
+		$this->assertNull($orderItem);
+		$item = Item::find(1);
+		$order->link('books', $item, array('quantity' => 10, 'subtotal' => 100));
+		$this->assertEquals(1, count($order->books));
+		$orderItem = OrderItem::find(array('order_id' => 2, 'item_id' => 1));
+		$this->assertTrue($orderItem instanceof OrderItem);
+		$this->assertEquals(10, $orderItem->quantity);
+		$this->assertEquals(100, $orderItem->subtotal);
+
+		// via model
+		$order = Order::find(1);
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(2, count($order->orderItems));
+		$orderItem = OrderItem::find(array('order_id' => 1, 'item_id' => 3));
+		$this->assertNull($orderItem);
+		$item = Item::find(3);
+		$order->link('items', $item, array('quantity' => 10, 'subtotal' => 100));
+		$this->assertEquals(3, count($order->items));
+		$this->assertEquals(3, count($order->orderItems));
+		$orderItem = OrderItem::find(array('order_id' => 1, 'item_id' => 3));
+		$this->assertTrue($orderItem instanceof OrderItem);
+		$this->assertEquals(10, $orderItem->quantity);
+		$this->assertEquals(100, $orderItem->subtotal);
+	}
+
+	public function testUnlink()
+	{
+		// has many
+		$customer = Customer::find(2);
+		$this->assertEquals(2, count($customer->orders));
+		$customer->unlink('orders', $customer->orders[1], true);
+		$this->assertEquals(1, count($customer->orders));
+		$this->assertNull(Order::find(3));
+
+		// via model
+		$order = Order::find(2);
+		$this->assertEquals(3, count($order->items));
+		$this->assertEquals(3, count($order->orderItems));
+		$order->unlink('items', $order->items[2], true);
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(2, count($order->orderItems));
+
+		// via table
+		$order = Order::find(1);
+		$this->assertEquals(2, count($order->books));
+		$order->unlink('books', $order->books[1], true);
+		$this->assertEquals(1, count($order->books));
+		$this->assertEquals(1, count($order->orderItems));
+	}
+
+	public function testInsert()
+	{
+		$customer = new Customer;
+		$customer->email = 'user4@example.com';
+		$customer->name = 'user4';
+		$customer->address = 'address4';
+
+		$this->assertNull($customer->id);
+		$this->assertTrue($customer->isNewRecord);
+
+		$customer->save();
+
+		$this->assertEquals(4, $customer->id);
+		$this->assertFalse($customer->isNewRecord);
+	}
+
+	public function testUpdate()
+	{
+		// save
+		$customer = Customer::find(2);
+		$this->assertTrue($customer instanceof Customer);
+		$this->assertEquals('user2', $customer->name);
+		$this->assertFalse($customer->isNewRecord);
+		$customer->name = 'user2x';
+		$customer->save();
+		$this->assertEquals('user2x', $customer->name);
+		$this->assertFalse($customer->isNewRecord);
+		$customer2 = Customer::find(2);
+		$this->assertEquals('user2x', $customer2->name);
+
+		// updateCounters
+		$pk = array('order_id' => 2, 'item_id' => 4);
+		$orderItem = OrderItem::find($pk);
+		$this->assertEquals(1, $orderItem->quantity);
+		$ret = $orderItem->updateCounters(array('quantity' => -1));
+		$this->assertTrue($ret);
+		$this->assertEquals(0, $orderItem->quantity);
+		$orderItem = OrderItem::find($pk);
+		$this->assertEquals(0, $orderItem->quantity);
+
+		// updateAll
+		$customer = Customer::find(3);
+		$this->assertEquals('user3', $customer->name);
+		$ret = Customer::updateAll(array(
+			'name' => 'temp',
+		), array('id' => 3));
+		$this->assertEquals(1, $ret);
+		$customer = Customer::find(3);
+		$this->assertEquals('temp', $customer->name);
+
+		// updateCounters
+		$pk = array('order_id' => 1, 'item_id' => 2);
+		$orderItem = OrderItem::find($pk);
+		$this->assertEquals(2, $orderItem->quantity);
+		$ret = OrderItem::updateAllCounters(array(
+			'quantity' => 3,
+			'subtotal' => -10,
+		), $pk);
+		$this->assertEquals(1, $ret);
+		$orderItem = OrderItem::find($pk);
+		$this->assertEquals(5, $orderItem->quantity);
+		$this->assertEquals(30, $orderItem->subtotal);
+	}
+
+	public function testDelete()
+	{
+		// delete
+		$customer = Customer::find(2);
+		$this->assertTrue($customer instanceof Customer);
+		$this->assertEquals('user2', $customer->name);
+		$customer->delete();
+		$customer = Customer::find(2);
+		$this->assertNull($customer);
+
+		// deleteAll
+		$customers = Customer::find()->all();
+		$this->assertEquals(2, count($customers));
+		$ret = Customer::deleteAll();
+		$this->assertEquals(2, $ret);
+		$customers = Customer::find()->all();
+		$this->assertEquals(0, count($customers));
+	}
+}
\ No newline at end of file