source: Dev/branches/jos-branch/classes_old/Survey.php @ 238

<?php

/**
 * Description of Survey
 *
 * @author jkraaijeveld
 */
class Survey extends ResearchToolObject{
    public $title;
    public $description;
    public $creator;
    public $questions;
    
    public function __construct($uid = null, $title = null, $description = null, $creator = null, $questions = null) {
        if(!isset($uid))
        {
            $uid = md5(uniqid(rand(), true));
        }
        $this->uid = $uid;
        $this->title = $title;
                $this->description = $description;
                $this->creator = $creator;
        $this->questions = $questions;
        }

        /**
         * function evaluate()
         * Evaluates the references
         */
        public function evaluate()
        {
                $dbi = new DatabaseInterface();
                if(is_string($this->creator))
                {
                        $result = $dbi->get("user", array("uid" => $this->creator));    
                        if(!isset($result[0]))
                                return false;
                        $this->creator = $result[0];
                }

                if(!empty($this->questions) && is_string($this->questions[0]))
                {
                        $newQuestions = array();
                        foreach($this->questions as $question)
                        {
                                $result = $dbi->get("question", array("uid" => $question));
                                if(!isset($result[0]))
                                        return false;
                                $newQuestions[] = $result[0];                   
                        }
                        $this->questions = newQuestions;
                }
                return true;
        }
}

?>