Problems with inserting in YII framework

Problems inserting in Yii framework
I assign a value to the model's property in the controller:
Such as:
$model =new Post;
$model->type=1;

In my view, the visual
Beginwidget (' Cactiveform ', Array (
' id ' = ' china4a-reg-form ',
' Enableajaxvalidation ' =>false,
));
This way to get the values of the other fields.
The method of submission is:
Isnewrecord? ' Submit ': ' Save ');?>

But the value inside the widget can be inserted into the database correctly, but the $model->type is not plugged in.

The study of the half-day did not try to come out, how can I also insert this field record? Also please master can point pointing.

------Solution--------------------
Your $model is outside (probably still touching the inside of the method) you don't pass the words, how does he know?
------Solution--------------------
Yes. Your $model->type need to be submitted with other content

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