diff --git a/framework/yii/elasticsearch/ActiveQuery.php b/framework/yii/elasticsearch/ActiveQuery.php
index be948a2..25b316e 100644
--- a/framework/yii/elasticsearch/ActiveQuery.php
+++ b/framework/yii/elasticsearch/ActiveQuery.php
@@ -129,4 +129,38 @@ class ActiveQuery extends Query implements ActiveQueryInterface
 		}
 		return $model;
 	}
+
+	/**
+	 * @inheritDocs
+	 */
+	public function scalar($field, $db = null)
+	{
+		$record = parent::one($db);
+		if ($record !== false) {
+			if ($field == 'primaryKey') {
+				return $record['_id'];
+			} elseif (isset($record['_source'][$field])) {
+				return $record['_source'][$field];
+			}
+		}
+		return null;
+	}
+
+	/**
+	 * @inheritDocs
+	 */
+	public function column($field, $db = null)
+	{
+		if ($field == 'primaryKey') {
+			$command = $this->createCommand($db);
+			$command->queryParts['fields'] = [];
+			$rows = $command->queryAll()['hits'];
+			$result = [];
+			foreach ($rows as $row) {
+				$result[] = $row['_id'];
+			}
+			return $result;
+		}
+		return parent::column($field, $db);
+	}
 }
diff --git a/framework/yii/elasticsearch/ActiveRecord.php b/framework/yii/elasticsearch/ActiveRecord.php
index 9f2c610..edf2c48 100644
--- a/framework/yii/elasticsearch/ActiveRecord.php
+++ b/framework/yii/elasticsearch/ActiveRecord.php
@@ -312,16 +312,21 @@ class ActiveRecord extends \yii\db\ActiveRecord
 	 * @param array $attributes attribute values (name-value pairs) to be saved into the table
 	 * @param array $condition the conditions that will be put in the WHERE part of the UPDATE SQL.
 	 * Please refer to [[ActiveQuery::where()]] on how to specify this parameter.
-	 * @param array $params this parameter is ignored in redis implementation.
+	 * @param array $params this parameter is ignored in elasticsearch implementation.
 	 * @return integer the number of rows updated
 	 */
 	public static function updateAll($attributes, $condition = [], $params = [])
 	{
-		if (empty($condition)) {
+		if (count($condition) == 1 && isset($condition['primaryKey'])) {
+			$primaryKeys = (array) $condition['primaryKey'];
+		} else {
+			$primaryKeys = static::find()->where($condition)->column('primaryKey');
+		}
+		if (empty($primaryKeys)) {
 			return 0;
 		}
 		$bulk = '';
-		foreach((array) $condition as $pk) {
+		foreach((array) $primaryKeys as $pk) {
 			$action = Json::encode([
 				"update" => [
 					"_id" => $pk,
@@ -362,16 +367,21 @@ class ActiveRecord extends \yii\db\ActiveRecord
 	 *
 	 * @param array $condition the conditions that will be put in the WHERE part of the DELETE SQL.
 	 * Please refer to [[ActiveQuery::where()]] on how to specify this parameter.
-	 * @param array $params this parameter is ignored in redis implementation.
+	 * @param array $params this parameter is ignored in elasticsearch implementation.
 	 * @return integer the number of rows deleted
 	 */
 	public static function deleteAll($condition = [], $params = [])
 	{
-		if (empty($condition)) {
+		if (count($condition) == 1 && isset($condition['primaryKey'])) {
+			$primaryKeys = (array) $condition['primaryKey'];
+		} else {
+			$primaryKeys = static::find()->where($condition)->column('primaryKey');
+		}
+		if (empty($primaryKeys)) {
 			return 0;
 		}
 		$bulk = '';
-		foreach((array) $condition as $pk) {
+		foreach((array) $primaryKeys as $pk) {
 			$bulk .= Json::encode([
 				"delete" => [
 					"_id" => $pk,
diff --git a/framework/yii/elasticsearch/QueryBuilder.php b/framework/yii/elasticsearch/QueryBuilder.php
index 15f5f94..d5b1f43 100644
--- a/framework/yii/elasticsearch/QueryBuilder.php
+++ b/framework/yii/elasticsearch/QueryBuilder.php
@@ -152,13 +152,21 @@ class QueryBuilder extends \yii\base\Object
 	{
 		$parts = [];
 		foreach($condition as $attribute => $value) {
-			if (is_array($value)) { // IN condition
-				$parts[] = ['in' => [$attribute => $value]];
+			if ($attribute == 'primaryKey') {
+				if ($value == null) { // there is no null pk
+					$parts[] = ['script' => ['script' => '0==1']];
+				} else {
+					$parts[] = ['ids' => ['values' => is_array($value) ? $value : [$value]]];
+				}
 			} else {
-				if ($value === null) {
-					$parts[] = ['missing' => ['field' => $attribute, 'existence' => true, 'null_value' => true]];
+				if (is_array($value)) { // IN condition
+					$parts[] = ['in' => [$attribute => $value]];
 				} else {
-					$parts[] = ['term' => [$attribute => $value]];
+					if ($value === null) {
+						$parts[] = ['missing' => ['field' => $attribute, 'existence' => true, 'null_value' => true]];
+					} else {
+						$parts[] = ['term' => [$attribute => $value]];
+					}
 				}
 			}
 		}
@@ -190,6 +198,9 @@ class QueryBuilder extends \yii\base\Object
 		}
 
 		list($column, $value1, $value2) = $operands;
+		if ($column == 'primaryKey') {
+			throw new NotSupportedException('Between condition is not supported for primaryKey.');
+		}
 		$filter = ['range' => [$column => ['gte' => $value1, 'lte' => $value2]]];
 		if ($operator == 'not between') {
 			$filter = ['not' => $filter];
@@ -197,7 +208,7 @@ class QueryBuilder extends \yii\base\Object
 		return $filter;
 	}
 
-	private function buildInCondition($operator, $operands, &$params)
+	private function buildInCondition($operator, $operands)
 	{
 		if (!isset($operands[0], $operands[1])) {
 			throw new InvalidParamException("Operator '$operator' requires two operands.");
@@ -208,7 +219,7 @@ class QueryBuilder extends \yii\base\Object
 		$values = (array)$values;
 
 		if (empty($values) || $column === []) {
-			return $operator === 'in' ? ['script' => ['script' => '0=1']] : [];
+			return $operator === 'in' ? ['script' => ['script' => '0==1']] : [];
 		}
 
 		if (count($column) > 1) {
@@ -226,21 +237,32 @@ class QueryBuilder extends \yii\base\Object
 				unset($values[$i]);
 			}
 		}
-		if (empty($values) && $canBeNull) {
-			return ['missing' => ['field' => $column, 'existence' => true, 'null_value' => true]];
-		} else {
-			$filter = ['in' => [$column => $values]];
-			if ($canBeNull) {
-				$filter = ['or' => [$filter, ['missing' => ['field' => $column, 'existence' => true, 'null_value' => true]]]];
+		if ($column == 'primaryKey') {
+			if (empty($values) && $canBeNull) { // there is no null pk
+				$filter = ['script' => ['script' => '0==1']];
+			} else {
+				$filter = ['ids' => ['values' => array_values($values)]];
+				if ($canBeNull) {
+					$filter = ['or' => [$filter, ['missing' => ['field' => $column, 'existence' => true, 'null_value' => true]]]];
+				}
 			}
-			if ($operator == 'not in') {
-				$filter = ['not' => $filter];
+		} else {
+			if (empty($values) && $canBeNull) {
+				$filter = ['missing' => ['field' => $column, 'existence' => true, 'null_value' => true]];
+			} else {
+				$filter = ['in' => [$column => array_values($values)]];
+				if ($canBeNull) {
+					$filter = ['or' => [$filter, ['missing' => ['field' => $column, 'existence' => true, 'null_value' => true]]]];
+				}
 			}
-			return $filter;
 		}
+		if ($operator == 'not in') {
+			$filter = ['not' => $filter];
+		}
+		return $filter;
 	}
 
-	protected function buildCompositeInCondition($operator, $columns, $values, &$params)
+	protected function buildCompositeInCondition($operator, $columns, $values)
 	{
 		throw new NotSupportedException('composite in is not supported by elasticsearch.');
 		$vss = array();
@@ -265,8 +287,9 @@ class QueryBuilder extends \yii\base\Object
 		return '(' . implode(', ', $columns) . ") $operator (" . implode(', ', $vss) . ')';
 	}
 
-	private function buildLikeCondition($operator, $operands, &$params)
+	private function buildLikeCondition($operator, $operands)
 	{
+		throw new NotSupportedException('like conditions is not supported by elasticsearch.');
 		if (!isset($operands[0], $operands[1])) {
 			throw new Exception("Operator '$operator' requires two operands.");
 		}
@@ -276,7 +299,7 @@ class QueryBuilder extends \yii\base\Object
 		$values = (array)$values;
 
 		if (empty($values)) {
-			return $operator === 'LIKE' || $operator === 'OR LIKE' ? '0=1' : '';
+			return $operator === 'LIKE' || $operator === 'OR LIKE' ? '0==1' : '';
 		}
 
 		if ($operator === 'LIKE' || $operator === 'NOT LIKE') {
diff --git a/tests/unit/data/ar/elasticsearch/Customer.php b/tests/unit/data/ar/elasticsearch/Customer.php
index 6a0ffd0..5db7f0e 100644
--- a/tests/unit/data/ar/elasticsearch/Customer.php
+++ b/tests/unit/data/ar/elasticsearch/Customer.php
@@ -24,7 +24,7 @@ class Customer extends ActiveRecord
 
 	public function getOrders()
 	{
-		return $this->hasMany('Order', array('customer_id' => 'id'))->orderBy('id');
+		return $this->hasMany(Order::className(), array('customer_id' => 'primaryKey'))->orderBy('create_time');
 	}
 
 	public static function active($query)
diff --git a/tests/unit/data/ar/elasticsearch/Order.php b/tests/unit/data/ar/elasticsearch/Order.php
index 0d1c37c..be61dbe 100644
--- a/tests/unit/data/ar/elasticsearch/Order.php
+++ b/tests/unit/data/ar/elasticsearch/Order.php
@@ -19,33 +19,31 @@ class Order extends ActiveRecord
 
 	public function getCustomer()
 	{
-		return $this->hasOne('Customer', ['id' => 'customer_id']);
+		return $this->hasOne(Customer::className(), ['primaryKey' => 'customer_id']);
 	}
 
 	public function getOrderItems()
 	{
-		return $this->hasMany('OrderItem', ['order_id' => 'id']);
+		return $this->hasMany(OrderItem::className(), ['order_id' => 'primaryKey']);
 	}
 
 	public function getItems()
 	{
-		return $this->hasMany('Item', ['id' => 'item_id'])
-			->via('orderItems', function ($q) {
-				// additional query configuration
-			})->orderBy('id');
+		return $this->hasMany(Item::className(), ['primaryKey' => 'item_id'])
+			->via('orderItems')->orderBy('name');
 	}
 
-	public function getBooks()
-	{
-		return $this->hasMany('Item', ['id' => 'item_id'])
-			->viaTable('tbl_order_item', ['order_id' => 'id'])
-			->where(['category_id' => 1]);
-	}
+//	public function getBooks()
+//	{
+//		return $this->hasMany('Item', ['primaryKey' => 'item_id'])
+//			->viaTable('tbl_order_item', ['order_id' => 'primaryKey'])
+//			->where(['category_id' => 1]);
+//	}
 
 	public function beforeSave($insert)
 	{
 		if (parent::beforeSave($insert)) {
-			$this->create_time = time();
+//			$this->create_time = time();
 			return true;
 		} else {
 			return false;
diff --git a/tests/unit/data/ar/elasticsearch/OrderItem.php b/tests/unit/data/ar/elasticsearch/OrderItem.php
index 1537f15..cadfeb4 100644
--- a/tests/unit/data/ar/elasticsearch/OrderItem.php
+++ b/tests/unit/data/ar/elasticsearch/OrderItem.php
@@ -19,11 +19,11 @@ class OrderItem extends ActiveRecord
 
 	public function getOrder()
 	{
-		return $this->hasOne('Order', ['id' => 'order_id']);
+		return $this->hasOne(Order::className(), ['primaryKey' => 'order_id']);
 	}
 
 	public function getItem()
 	{
-		return $this->hasOne('Item', ['id' => 'item_id']);
+		return $this->hasOne(Item::className(), ['primaryKey' => 'item_id']);
 	}
 }
diff --git a/tests/unit/framework/elasticsearch/ActiveRecordTest.php b/tests/unit/framework/elasticsearch/ActiveRecordTest.php
index 78db06f..e7e6ec7 100644
--- a/tests/unit/framework/elasticsearch/ActiveRecordTest.php
+++ b/tests/unit/framework/elasticsearch/ActiveRecordTest.php
@@ -25,15 +25,15 @@ class ActiveRecordTest extends ElasticSearchTestCase
 
 		$customer = new Customer();
 		$customer->primaryKey = 1;
-		$customer->setAttributes(array('email' => 'user1@example.com', 'name' => 'user1', 'address' => 'address1', 'status' => 1), false);
+		$customer->setAttributes(['email' => 'user1@example.com', 'name' => 'user1', 'address' => 'address1', 'status' => 1], false);
 		$customer->save(false);
 		$customer = new Customer();
 		$customer->primaryKey = 2;
-		$customer->setAttributes(array('email' => 'user2@example.com', 'name' => 'user2', 'address' => 'address2', 'status' => 1), false);
+		$customer->setAttributes(['email' => 'user2@example.com', 'name' => 'user2', 'address' => 'address2', 'status' => 1], false);
 		$customer->save(false);
 		$customer = new Customer();
 		$customer->primaryKey = 3;
-		$customer->setAttributes(array('email' => 'user3@example.com', 'name' => 'user3', 'address' => 'address3', 'status' => 2), false);
+		$customer->setAttributes(['email' => 'user3@example.com', 'name' => 'user3', 'address' => 'address3', 'status' => 2], false);
 		$customer->save(false);
 
 //		INSERT INTO tbl_category (name) VALUES ('Books');
@@ -41,56 +41,56 @@ class ActiveRecordTest extends ElasticSearchTestCase
 
 		$item = new Item();
 		$item->primaryKey = 1;
-		$item->setAttributes(array('name' => 'Agile Web Application Development with Yii1.1 and PHP5', 'category_id' => 1), false);
+		$item->setAttributes(['name' => 'Agile Web Application Development with Yii1.1 and PHP5', 'category_id' => 1], false);
 		$item->save(false);
 		$item = new Item();
 		$item->primaryKey = 2;
-		$item->setAttributes(array('name' => 'Yii 1.1 Application Development Cookbook', 'category_id' => 1), false);
+		$item->setAttributes(['name' => 'Yii 1.1 Application Development Cookbook', 'category_id' => 1], false);
 		$item->save(false);
 		$item = new Item();
 		$item->primaryKey = 3;
-		$item->setAttributes(array('name' => 'Ice Age', 'category_id' => 2), false);
+		$item->setAttributes(['name' => 'Ice Age', 'category_id' => 2], false);
 		$item->save(false);
 		$item = new Item();
 		$item->primaryKey = 4;
-		$item->setAttributes(array('name' => 'Toy Story', 'category_id' => 2), false);
+		$item->setAttributes(['name' => 'Toy Story', 'category_id' => 2], false);
 		$item->save(false);
 		$item = new Item();
 		$item->primaryKey = 5;
-		$item->setAttributes(array('name' => 'Cars', 'category_id' => 2), false);
+		$item->setAttributes(['name' => 'Cars', 'category_id' => 2], false);
 		$item->save(false);
 
 		$order = new Order();
 		$order->primaryKey = 1;
-		$order->setAttributes(array('customer_id' => 1, 'create_time' => 1325282384, 'total' => 110.0), false);
+		$order->setAttributes(['customer_id' => 1, 'create_time' => 1325282384, 'total' => 110.0], false);
 		$order->save(false);
 		$order = new Order();
 		$order->primaryKey = 2;
-		$order->setAttributes(array('customer_id' => 2, 'create_time' => 1325334482, 'total' => 33.0), false);
+		$order->setAttributes(['customer_id' => 2, 'create_time' => 1325334482, 'total' => 33.0], false);
 		$order->save(false);
 		$order = new Order();
 		$order->primaryKey = 3;
-		$order->setAttributes(array('customer_id' => 2, 'create_time' => 1325502201, 'total' => 40.0), false);
+		$order->setAttributes(['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);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(['order_id' => 1, 'item_id' => 1, 'quantity' => 1, 'subtotal' => 30.0], false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(['order_id' => 1, 'item_id' => 2, 'quantity' => 2, 'subtotal' => 40.0], false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(['order_id' => 2, 'item_id' => 4, 'quantity' => 1, 'subtotal' => 10.0], false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(['order_id' => 2, 'item_id' => 5, 'quantity' => 1, 'subtotal' => 15.0], false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(['order_id' => 2, 'item_id' => 3, 'quantity' => 1, 'subtotal' => 8.0], false);
+		$orderItem->save(false);
+		$orderItem = new OrderItem();
+		$orderItem->setAttributes(['order_id' => 3, 'item_id' => 2, 'quantity' => 1, 'subtotal' => 40.0], false);
+		$orderItem->save(false);
 
 		Customer::getDb()->createCommand()->flushIndex();
 	}
@@ -118,22 +118,22 @@ class ActiveRecordTest extends ElasticSearchTestCase
 		$this->assertNull($customer);
 
 		// query scalar
-		$customerName = Customer::find()->where(array('status' => 2))->scalar('name');
+		$customerName = Customer::find()->where(['status' => 2])->scalar('name');
 		$this->assertEquals('user3', $customerName);
 
 		// find by column values
-		$customer = Customer::find(array('name' => 'user2'));
+		$customer = Customer::find(['name' => 'user2']);
 		$this->assertTrue($customer instanceof Customer);
 		$this->assertEquals('user2', $customer->name);
-		$customer = Customer::find(array('name' => 'user1', 'id' => 2));
+		$customer = Customer::find(['name' => 'user1', 'id' => 2]);
 		$this->assertNull($customer);
-		$customer = Customer::find(array('primaryKey' => 5));
+		$customer = Customer::find(['primaryKey' => 5]);
 		$this->assertNull($customer);
-		$customer = Customer::find(array('name' => 'user5'));
+		$customer = Customer::find(['name' => 'user5']);
 		$this->assertNull($customer);
 
 		// find by attributes
-		$customer = Customer::find()->where(array('name' => 'user2'))->one();
+		$customer = Customer::find()->where(['name' => 'user2'])->one();
 		$this->assertTrue($customer instanceof Customer);
 		$this->assertEquals('user2', $customer->name);
 
@@ -149,7 +149,7 @@ class ActiveRecordTest extends ElasticSearchTestCase
 //		$this->assertEquals(2, Customer::find()->active()->count());
 
 		// asArray
-		$customer = Customer::find()->where(array('name' => 'user2'))->asArray()->one();
+		$customer = Customer::find()->where(['name' => 'user2'])->asArray()->one();
 		$this->assertEquals(array(
 			'email' => 'user2@example.com',
 			'name' => 'user2',
@@ -286,14 +286,14 @@ class ActiveRecordTest extends ElasticSearchTestCase
 
 	public function testFindComplexCondition()
 	{
-		$this->assertEquals(2, Customer::find()->where(array('OR', array('name' => 'user1'), array('name' => 'user2')))->count());
-		$this->assertEquals(2, count(Customer::find()->where(array('OR', array('name' => 'user1'), array('name' => 'user2')))->all()));
+		$this->assertEquals(2, Customer::find()->where(['OR', ['name' => 'user1'], ['name' => 'user2']])->count());
+		$this->assertEquals(2, count(Customer::find()->where(['OR', ['name' => 'user1'], ['name' => 'user2']])->all()));
 
-		$this->assertEquals(2, Customer::find()->where(array('name' => array('user1','user2')))->count());
-		$this->assertEquals(2, count(Customer::find()->where(array('name' => array('user1','user2')))->all()));
+		$this->assertEquals(2, Customer::find()->where(['name' => ['user1','user2']])->count());
+		$this->assertEquals(2, count(Customer::find()->where(['name' => ['user1','user2']])->all()));
 
-		$this->assertEquals(1, Customer::find()->where(array('AND', array('name' => array('user2','user3')), array('BETWEEN', 'status', 2, 4)))->count());
-		$this->assertEquals(1, count(Customer::find()->where(array('AND', array('name' => array('user2','user3')), array('BETWEEN', 'status', 2, 4)))->all()));
+		$this->assertEquals(1, Customer::find()->where(['AND', ['name' => ['user2','user3']], ['BETWEEN', 'status', 2, 4]])->count());
+		$this->assertEquals(1, count(Customer::find()->where(['AND', ['name' => ['user2','user3']], ['BETWEEN', 'status', 2, 4]])->all()));
 	}
 
 	public function testFindNullValues()
@@ -301,6 +301,7 @@ class ActiveRecordTest extends ElasticSearchTestCase
 		$customer = Customer::find(2);
 		$customer->name = null;
 		$customer->save(false);
+		Customer::getDb()->createCommand()->flushIndex('customers');
 
 		$result = Customer::find()->where(['name' => null])->all();
 		$this->assertEquals(1, count($result));
@@ -309,132 +310,136 @@ class ActiveRecordTest extends ElasticSearchTestCase
 
 	public function testFindColumn()
 	{
-		$this->assertEquals(array('user1', 'user2', 'user3'), Customer::find()->column('name'));
-		$this->assertEquals(array('user3', 'user2', 'user1'), Customer::find()->orderBy(array('name' => SORT_DESC))->column('name'));
+		$this->assertEquals(['user1', 'user2', 'user3'], Customer::find()->column('name'));
+		$this->assertEquals(['user3', 'user2', 'user1'], Customer::find()->orderBy(['name' => SORT_DESC])->column('name'));
 	}
 
 	public function testExists()
 	{
-		$this->assertTrue(Customer::find()->where(array('name' => 'user1'))->exists());
-		$this->assertFalse(Customer::find()->where(array('name' => 'user5'))->exists());
+		$this->assertTrue(Customer::find()->where(['name' => 'user1'])->exists());
+		$this->assertFalse(Customer::find()->where(['name' => 'user5'])->exists());
+	}
+
+	public function testFindLazy()
+	{
+		/** @var $customer Customer */
+		$customer = Customer::find(2);
+		$orders = $customer->orders;
+		$this->assertEquals(2, count($orders));
+
+		$orders = $customer->getOrders()->where(['between', 'create_time', 1325334000, 1325400000])->all();
+		$this->assertEquals(1, count($orders));
+		$this->assertEquals(2, $orders[0]->primaryKey);
+	}
+
+	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->primaryKey);
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(2, $order->items[0]->primaryKey);
+		$this->assertEquals(1, $order->items[1]->primaryKey);
+
+		$order = new Order();
+		$order->primaryKey = 100;
+		$this->assertEquals([], $order->items);
+	}
+
+	public function testFindEagerViaRelation()
+	{
+		$orders = Order::find()->with('items')->all();
+		$this->assertEquals(3, count($orders));
+		$order = $orders[0];
+		$this->assertEquals(1, $order->primaryKey);
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(2, $order->items[0]->primaryKey);
+		$this->assertEquals(1, $order->items[1]->primaryKey);
 	}
 
-//	public function testFindLazy()
-//	{
-//		/** @var $customer Customer */
-//		$customer = Customer::find(2);
-//		$orders = $customer->orders;
-//		$this->assertEquals(2, count($orders));
-//
-//		$orders = $customer->getOrders()->where(array('id' => 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 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 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));
-//	}
+	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);
+		Customer::getDb()->createCommand()->flushIndex();
+		$this->assertEquals(3, count($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->primaryKey);
+
+		// via model
+		$order = Order::find(1);
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(2, count($order->orderItems));
+		$orderItem = OrderItem::find(['order_id' => 1, 'item_id' => 3]);
+		$this->assertNull($orderItem);
+		$item = Item::find(3);
+		$order->link('items', $item, ['quantity' => 10, 'subtotal' => 100]);
+		Customer::getDb()->createCommand()->flushIndex();
+		$this->assertEquals(3, count($order->items));
+		$this->assertEquals(3, count($order->orderItems));
+		$orderItem = OrderItem::find(['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);
+		Customer::getDb()->createCommand()->flushIndex();
+		$this->assertEquals(1, count($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);
+		Customer::getDb()->createCommand()->flushIndex();
+		$this->assertEquals(2, count($order->items));
+		$this->assertEquals(2, count($order->orderItems));
+	}
 
 	public function testInsertNoPk()
 	{
@@ -489,20 +494,20 @@ class ActiveRecordTest extends ElasticSearchTestCase
 		$this->assertEquals('user3', $customer->name);
 		$ret = Customer::updateAll([
 			'name' => 'temp',
-		], ['id' => 3]);
+		], ['name' => 'user3']);
 		$this->assertEquals(1, $ret);
 		$customer = Customer::find(3);
 		$this->assertEquals('temp', $customer->name);
 
 		$ret = Customer::updateAll(['name' => 'temp']);
-		$this->assertEquals(0, $ret);
+		$this->assertEquals(3, $ret);
 	}
 
 	public function testUpdatePk()
 	{
 		$this->setExpectedException('yii\base\InvalidCallException');
 
-		$pk = array('primaryKey' => 2);
+		$pk = ['primaryKey' => 2];
 		$orderItem = Order::find($pk);
 		$this->assertEquals(2, $orderItem->primaryKey);
 
@@ -525,7 +530,7 @@ class ActiveRecordTest extends ElasticSearchTestCase
 		// deleteAll
 		$customers = Customer::find()->all();
 		$this->assertEquals(2, count($customers));
-		$ret = Customer::deleteAll([1,2,3]);
+		$ret = Customer::deleteAll(['name' => ['user1','user3']]);
 		$this->assertEquals(2, $ret);
 
 		Customer::getDb()->createCommand()->flushIndex('customers');