public function testOrderModeExtended()
 {
     $criteria = new ESphinxSearchCriteria();
     $criteria->sortMode = ESphinxSort::EXTENDED;
     try {
         $criteria->addOrder('', '');
         $this->setExpectedException('ESphinxException');
     } catch (Exception $e) {
         $this->assertInstanceOf('ESphinxException', $e);
     }
     try {
         $criteria->addOrder('field', 'OSC');
         $this->setExpectedException('ESphinxException');
     } catch (Exception $e) {
         $this->assertInstanceOf('ESphinxException', $e);
     }
     $criteria->addOrder('field1', 'asc');
     $criteria->addOrder('field2', 'DESC');
     $this->assertEquals($criteria->getOrders(), array('field1' => 'ASC', 'field2' => 'DESC'));
     $criteria->cleanOrders();
     $this->assertEquals($criteria->getOrders(), array());
     $criteria->addOrders(array('field1' => 'asc', 'field2' => 'desc'));
     $this->assertEquals($criteria->getOrders(), array('field1' => 'ASC', 'field2' => 'DESC'));
 }
 private function applyOrder(ESphinxQlCriteria $criteria, ESphinxSearchCriteria $queryCriteria)
 {
     $order = null;
     if ($queryCriteria->sortMode == ESphinxSort::EXTENDED) {
         if ($orderArray = $queryCriteria->getOrders()) {
             $order = $this->implodeKV($orderArray);
         }
     } else {
         if ($queryCriteria->getSortBy()) {
             $order = $queryCriteria->getSortBy() . ' ';
             switch ($queryCriteria->sortMode) {
                 case ESphinxSort::ATTR_ASC:
                     $order .= 'ASC';
                     break;
                 case ESphinxSort::ATTR_DESC:
                     $order .= 'DESC';
                     break;
                 case ESphinxSort::RELEVANCE:
                     $order = '@weight DESC';
                     break;
                 default:
                     throw new ESphinxException('Not implemented for Sphinx Ql connection');
             }
         }
     }
     if ($order) {
         if ($queryCriteria->groupBy) {
             $criteria->withinGroupOrder = $order;
         } else {
             $criteria->order = $order;
         }
     }
 }