how to create a yii model without a database table

Question

i created a yii model that has no database table, but the problem now is, whenever I tried to call the model function within a view file, it doesn't get recognize

class blah extends CActiveRecord()

    public static function model($className=__CLASS__)
    {
        return parent::model($className);
    }

    public function tableName()
    {
        return '{{UNVETTED}}';
    }

    public function sayHello()
    { 
         echo "hello world";
    }
}

while inside the view i called it like this

blah::model()->sayHello() , and then I got a white page of death, why is that?

Answer 1

If you want to create Yii model without a table it can be created using CFormModel. You have define model variables, their rules and attribute label.

Example code of a Change Password Form created using CFormModel.

<?php

class ChangePassword extends CFormModel 
{

    public $password;
    public $verifyPassword;
    public $currentPassword;    

    public function rules() {

            $rules[] = array('currentPassword', 'safe');
            $rules[] = array('currentPassword', 'required');            
            $rules[] = array('password, verifyPassword', 'required');
            $rules[] = array('verifyPassword', 'compare', 'compareAttribute' =>'password', 'message' => 'Retyped password is incorrect');

            return $rules;
    }

    /**
     * Declares attribute labels.
     */
    public function attributeLabels() {
            return array(
                    'password'=>'New password',
                    'verifyPassword'=>'Retype your new password',
                    'currentPassword'=>'Your actual password',
            );
    }

}

Answer 2

You dont need to use CActiveRecord if your model is not associated with a database table. Use CModel or CFormModel instead

BTW, fix this:

class blah extends CActiveRecord()

to

class blah extends CActiveRecord {

I think that's why you are getting a white page.