When updating, skip some attributes from the yii update

Question

I need to stop updating a specific value, even if they are set to a POST array. I use unsafe yii rules for this.

array('id', 'unsafe', 'on'=>'update'), 

still with this, i cant miss the id from the update.

how can this be done with yii?

below is my function rules.

 public function rules() { // NOTE: you should only define rules for those attributes that // will receive user inputs. return array( array('name, body, created_date', 'required'), array('name', 'length', 'max'=>128), array('body', 'length', 'max'=>512), array('id', 'unsafe', 'on'=>'update'), // The following rule is used by search(). // @todo Please remove those attributes that should not be searched. array('id, name, body, created_date', 'safe', 'on'=>'search'), ); } 

Update 1

$ model-> attributes = $ _POST ['User'];

and I need when saving to skip certain attributes.

$ models-> Save ();

Answer 1

When you create an instance of a new model in your controller, you will need to declare a script, for example if your ad was something like this

 $myModelInstance = new MyModel(); 

you will need to change it to

 $myModelInstance = new MyModel('update'); 

However, if you use one of the methods for searching active records to save it, it is automatically set to "update", as here: http://www.yiiframework.com/doc/api/1.1/CActiveRecord#save-detail

If you use any other logic to declare a model, you can simply use the setScenario function

 $myModel->setScenario("update"); 

Answer 2

As mentioned in Manquer, your script is probably not configured to update. The correct update sequence would include loading an existing instance of the object, assigning variables, and saving them. Personally, I will never just create an instance of an object and give it another scenario, I think it asks questions.

 // Load the existing object first $user = User::model()->findByPk(..); // Assign everything that has either a validation rule or is added as "safe" $user->attributes = $_POST['User']; // Save the updated version $user->save(); 

Yii does not know to update the 'id' (if it is correctly defined as the primary key in your database). No need to mark it as unsafe. So: make sure the instance was loaded from db ($ user-> isNewRecord must be FALSE) and that the table has PK. And then update the attributes you need.

You can also update only certain attributes by first clearing $ _POST, or when you call save, just name it as $ user-> save (true, array ('name', 'body')) to update the name and body , eg.