magento CURD操作

$model = Mage::getModel(‘mynews/mynews‘); 
$collection = $model->getCollection(); 
$collection->addAttributeToSelect(array(‘name‘, ‘image‘, ‘url_key‘)) //选择要select的属性
　　->setPageSize(20)//获取的个数
　　->setCurPage(1)
　　->addAttributeToFilter(‘style‘, ‘brass‘);//属性过滤 详细文档 http://justcoding.iteye.com/blog/1681318
　　->addAttributeToSort(‘name‘, ‘ASC‘);//排序
$collection->getSize();
foreach($collection as $item){ 
   print_r($item->getData()); 
   print_r($item->getTitle()); 
}

$data = array(‘title‘=>‘hello there‘,‘content‘=>‘how are you? i am fine over here.‘,‘status‘=>1); 
$model = Mage::getModel(‘mynews/mynews‘)->setData($data);
try { 
   $insertId = $model->save()->getId(); echo "Data successfully inserted. Insert ID:".$insertId; 
} catch (Exception $e){ 
   echo $e->getMessage(); 
}

$id = 2; 
$data = array(‘title‘=>‘hello test‘,‘content‘=>‘test how are you?‘,‘status‘=>0); 
$model = Mage::getModel(‘mynews/mynews‘)->load($id)->addData($data); 
try { 
   $model->save(); 
   echo "Data updated successfully."; 
} catch (Exception $e){ 
   echo $e->getMessage(); 
}

$id = 3; 
$model = Mage::getModel(‘mynews/mynews‘)->load($id); 
try { 
     $model->delete(); 
     echo "Data deleted successfully."; 
} catch (Exception $e){ 
     echo $e->getMessage(); 
}