3.01-QCM_MuscuMaths_Test/Website/gateways/GatewayAdministrator.php

<?php

class GatewayAdministrator
{
    private $con;

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

    public function addAdministrator($administrator)
    {
        $query = "insert into Administrators(id,username,hashedPassword) values (:id,:username,:hashedPassword);";
        $this->con->executeQuery(
            $query,
            array(
                ':id' => array($administrator->getId(), PDO::PARAM_INT),
                ':username' => array($administrator->getUsername(), PDO::PARAM_STR),
                ':hashedPassword' => array($administrator->getHashedPassword(), PDO::PARAM_STR)
            )
        );
    }

    public function getAdministratorByUsername(string $username)
    {
        $query = "SELECT * FROM Administrators WHERE username = :username;";
        $this->con->executeQuery($query, array(':username' => array($username, PDO::PARAM_STR)));
        $results = $this->con->getResults();
        if ($results == NULL) {
            return false;
        }
        return new Administrator($results[0]['id'], $results[0]['username'], $results[0]['hashedPassword']);
    }

    public function getAdministratorByID(int $id)
    {
        $query = "SELECT * FROM Administrators 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 Administrator($results[0]['id'], $results[0]['username'], $results[0]['hashedPassword']);
    }

    public function getAdministrators()
    {
        $query = "SELECT * FROM administrators";
        $this->con->executeQuery($query);
        $results = $this->con->getResults();
                
        return $results;
    }

    public function updateAdministrator($administrator)
    {
        $query = "UPDATE Administrators SET username = :username, hashedPassword = :hashedPassword WHERE id = :id;";
        $this->con->executeQuery(
            $query,
            array(
                ':id' => array($administrator->getId(), PDO::PARAM_INT),
                ':username' => array($administrator->getUsername(), PDO::PARAM_STR),
                ':hashedPassword' => array($administrator->getHashedPassword(), PDO::PARAM_STR)
            )
        );
    }

    public function deleteAdministratorByID($id)
    {
        $query = "DELETE FROM Administrators WHERE id = :id;";
        $this->con->executeQuery($query, array(':id' => array($id, PDO::PARAM_INT)));
    }
}