Yii Validate an un-bound Variable (non-stored)

Question

Classic problem:

verify that a user accepted the contract terms but the value of the acceptance is not stored (bound) in the database...

Extend CFormModel rather than CActiveForm (because CActiveForm binds values to DB)
Post a CFormModel to a controller action
Validate a CFormModel

I'm asking this question to answer it because the existing questions end in see the documentation...

score 0 · Answer 1 · answered Oct 02 '14 at 18:35

extend CFormModle, define the rules and got to validate. With bound variables you validated as part of save. Now you validate() by itself but Validate requires a list of attributes which is not defined in CFormModel. So, what do you do? You do this:

$contract->validate($contract->attributeNames())

Here's the full example:

class Contract extends CFormModel
{
...
    public $agree = false;
...
    public function rules()
    {
        return array(
            array('agree', 'required', 'requiredValue' => 1, 'message' => 'You must accept term to use our service'),
        );
    }
    public function attributeLabels()
    {
        return array(
                'agree'=>' I accept the contract terms'
        );
    }
}

Then in the controller you do this:

public function actionAgree(){
    $contract = new Contract;
    if(isset($_POST['Contract'])){
        //$contract->attributes=$_POST['Contract'];  //contract attributes not defined in CFormModel
        ...
        $contract->agree = $_POST['Contract']['agree'];
        ...
    }
    if(!$contract->validate($contract->attributeNames())){
        //re-render the form here and it will show up with validation errors marked!
    }

The results: enter image description here

Yii Validate an un-bound Variable (non-stored)

1 Answers1