yii mssql无法更新标识列

Question

yii 1.1.13, MS SQL Server 2012

 CREATE TABLE [dbo].[name](
   [id] [int] IDENTITY(1,1) NOT NULL,
   [name] [nvarchar](50) NOT NULL,
   CONSTRAINT [PK_name] PRIMARY KEY CLUSTERED

Model, contoller and CRUD created via gii.

_form.php:

$form=$this->beginWidget('CActiveForm', array('id'=>'name-form',));
echo $form->textField($model,'name',array('size'=>50,'maxlength'=>50));
echo CHtml::submitButton($model->isNewRecord ? 'Create' : 'Save');
$this->endWidget();

When

$model->attributes=$_POST['Name'];
$model->save();

General error: 20018 Cannot update identity column 'id'. [20018] (severity 5)

Temporary solution is: unset($model->id), but it's not clear.

What solution is nice?

Answer 1

Yii make's SQL:

UPDATE [name] SET [id]=:yp0,
[name]=:yp1 WHERE [name].[id]=2

My _form.php have not field 'id'. Why yii set

[id]=:yp0

?