ElementLetter::beforeSave PHP Method

    public function beforeSave()
    {
        if (in_array(Yii::app()->getController()->getAction()->id, array('create', 'update'))) {
            if (!$this->draft) {
                $this->print = 1;
                $this->print_all = 1;
            }
        }
        foreach (array('address', 'introduction', 're', 'body', 'footer', 'cc') as $field) {
            $this->{$field} = trim($this->{$field});
        }
        if (!$this->clinic_date) {
            $this->clinic_date = null;
        }
        return parent::beforeSave();
    }