<?php

class GatewayQuestion
{
    private $con;

    public function __construct($con)
    {
        $this->con = $con;
    }

    public function addQuestion($question)
    {
        $query = "insert into Questions(id,content,difficulty,nbFails) values (:id,:content,:difficulty,:nbFails);";
        $this->con->executeQuery(
            $query,
            array(
                ':id' => array($question->getId(), PDO::PARAM_INT),
                ':content' => array($question->getContent(), PDO::PARAM_STR),
                ':difficulty' => array($question->getDifficulty(), PDO::PARAM_INT),
                ':nbFails' => array($question->getNbFails(), PDO::PARAM_INT)
            )
        );
    }

    public function getQuestionByID($id)
    {
        $query = "SELECT * FROM Questions WHERE id = :id;";
        $this->con->executeQuery($query, array(':id' => array($id, PDO::PARAM_INT)));
        $results = $this->con->getResults();
        if ($results == NULL) {
            return false;
        }
        return new Question($results[0]['id'], $results[0]['content'], $results[0]['difficulty'], $results[0]['nbFails']);
    }

    public function getQuestions()
    {
        $query = "SELECT * FROM Questions;";
        $this->con->executeQuery($query);
        $results = $this->con->getResults();
        if ($results == NULL) {
            return false;
        }
    }
}