Refactored Sort.

framework/yii/data/Sort.php

@@ -275,8 +275,8 @@ class Sort extends Object
 	 */
 	public function getAttributeOrder($attribute)
 	{
-		$this->getAttributeOrders();
-		return isset($this->_attributeOrders[$attribute]) ? $this->_attributeOrders[$attribute] : null;
+		$orders = $this->getAttributeOrders();
+		return isset($orders[$attribute]) ? $orders[$attribute] : null;
 	}
 
 	/**
@@ -300,8 +300,8 @@ class Sort extends Object
 		}
 
 		$url = $this->createUrl($attribute);
-		$definition = $this->attributes[$attribute];
-		return Html::a($definition['label'], $url, $options);
+		$options['data-sort'] = $this->createSortVar($attribute);
+		return Html::a($this->attributes[$attribute]['label'], $url, $options);
 	}
 
 	/**
@@ -317,6 +317,23 @@ class Sort extends Object
 	 */
 	public function createUrl($attribute)
 	{
+		$params = $this->params === null ? $_GET : $this->params;
+		$params[$this->sortVar] = $this->createSortVar($attribute);
+		$route = $this->route === null ? Yii::$app->controller->getRoute() : $this->route;
+		$urlManager = $this->urlManager === null ? Yii::$app->getUrlManager() : $this->urlManager;
+		return $urlManager->createUrl($route, $params);
+	}
+
+	/**
+	 * Creates the sort variable for the specified attribute.
+	 * The newly created sort variable can be used to create a URL that will lead to
+	 * sorting by the specified attribute.
+	 * @param string $attribute the attribute name
+	 * @return string the value of the sort variable
+	 * @throws InvalidConfigException if the specified attribute is not defined in [[attributes]]
+	 */
+	public function createSortVar($attribute)
+	{
 		if (!isset($this->attributes[$attribute])) {
 			throw new InvalidConfigException("Unknown attribute: $attribute");
 		}
@@ -339,10 +356,6 @@ class Sort extends Object
 		foreach ($directions as $attribute => $descending) {
 			$sorts[] = $descending ? $attribute . $this->separators[1] . $this->descTag : $attribute;
 		}
-		$params = $this->params === null ? $_GET : $this->params;
-		$params[$this->sortVar] = implode($this->separators[0], $sorts);
-		$route = $this->route === null ? Yii::$app->controller->getRoute() : $this->route;
-		$urlManager = $this->urlManager === null ? Yii::$app->getUrlManager() : $this->urlManager;
-		return $urlManager->createUrl($route, $params);
+		return implode($this->separators[0], $sorts);
 	}
 }

framework/yii/widgets/LinkPager.php

@@ -183,7 +183,7 @@ class LinkPager extends Widget
 		}
 		$class = trim($class);
 		$options = array('class' => $class === '' ? null : $class);
-		return Html::tag('li', Html::a($label, $this->pagination->createUrl($page)), $options);
+		return Html::tag('li', Html::a($label, $this->pagination->createUrl($page), array('data-page' => $page)), $options);
 	}
 
 	/**

tests/unit/framework/data/SortTest.php

@@ -93,6 +93,27 @@ class SortTest extends TestCase
 		$this->assertNull($sort->getAttributeOrder('xyz'));
 	}
 
+	public function testCreateSortVar()
+	{
+		$sort = new Sort(array(
+			'attributes' => array(
+				'age',
+				'name' => array(
+					'asc' => array('first_name' => Sort::ASC, 'last_name' => Sort::ASC),
+					'desc' => array('first_name' => Sort::DESC, 'last_name' => Sort::DESC),
+				),
+			),
+			'params' => array(
+				'sort' => 'age.name-desc'
+			),
+			'enableMultiSort' => true,
+			'route' => 'site/index',
+		));
+
+		$this->assertEquals('age-desc.name-desc', $sort->createSortVar('age'));
+		$this->assertEquals('name.age', $sort->createSortVar('name'));
+	}
+
 	public function testCreateUrl()
 	{
 		$manager = new UrlManager(array(