Subversion-Projekte lars-tiefland.php_share

<?php

/**

 * PHPUnit

 *

 * Copyright (c) 2002-2010, Sebastian Bergmann <sb@sebastian-bergmann.de>.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *   * Redistributions of source code must retain the above copyright

 *     notice, this list of conditions and the following disclaimer.

 *

 *   * Redistributions in binary form must reproduce the above copyright

 *     notice, this list of conditions and the following disclaimer in

 *     the documentation and/or other materials provided with the

 *     distribution.

 *

 *   * Neither the name of Sebastian Bergmann nor the names of his

 *     contributors may be used to endorse or promote products derived

 *     from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS

 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER

 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN

 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * @category   Testing

 * @package    PHPUnit

 * @author     Mike Lively <m@digitalsandwich.com>

 * @copyright  2002-2010 Sebastian Bergmann <sb@sebastian-bergmann.de>

 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License

 * @link       http://www.phpunit.de/

 * @since      File available since Release 3.2.0

 */

class BankAccountException extends RuntimeException {}

/**

 * A bank account.

 *

 * @category   Testing

 * @package    PHPUnit

 * @author     Mike Lively <m@digitalsandwich.com>

 * @copyright  2002-2010 Sebastian Bergmann <sb@sebastian-bergmann.de>

 * @license    http://www.opensource.org/licenses/bsd-license.php  BSD License

 * @version    Release: 3.4.15

 * @link       http://www.phpunit.de/

 * @since      Class available since Release 3.2.0

 */

class BankAccount

{

    /**

     * The bank account's balance.

     *

     * @var    float

     */

    protected $balance = 0;

    /**

     * The bank account's number.

     *

     * @var    float

     */

    protected $accountNumber = 0;

    /**

     * The PDO connection used to store and retrieve bank account information.

     *

     * @var PDO

     */

    protected $pdo;

    public function __construct($accountNumber, PDO $pdo)

    {

        $this->accountNumber = $accountNumber;

        $this->pdo = $pdo;

        $this->loadAccount();

    }

    /**

     * Returns the bank account's balance.

     *

     * @return float

     */

    public function getBalance()

    {

        return $this->balance;

    }

    /**

     * Sets the bank account's balance.

     *

     * @param  float $balance

     * @throws BankAccountException

     */

    protected function setBalance($balance)

    {

        if ($balance >= 0) {

            $this->balance = $balance;

            $this->updateAccount();

        } else {

            throw new BankAccountException;

        }

    }

    /**

     * Returns the bank account's number.

     *

     * @return float

     */

    public function getAccountNumber()

    {

        return $this->accountNumber;

    }

    /**

     * Deposits an amount of money to the bank account.

     *

     * @param  float $balance

     * @throws BankAccountException

     */

    public function depositMoney($balance)

    {

        $this->setBalance($this->getBalance() + $balance);

        return $this->getBalance();

    }

    /**

     * Withdraws an amount of money from the bank account.

     *

     * @param  float $balance

     * @throws BankAccountException

     */

    public function withdrawMoney($balance)

    {

        $this->setBalance($this->getBalance() - $balance);

        return $this->getBalance();

    }

    /**

     * Loads account information from the database.

     */

    protected function loadAccount()

    {

        $query = "SELECT * FROM bank_account WHERE account_number = ?";

        $statement = $this->pdo->prepare($query);

        $statement->execute(array($this->accountNumber));

        if ($bankAccountInfo = $statement->fetch(PDO::FETCH_ASSOC))

        {

            $this->balance = $bankAccountInfo['balance'];

        }

        else

        {

            $this->balance = 0;

            $this->addAccount();

        }

    }

    /**

     * Saves account information to the database.

     */

    protected function updateAccount()

    {

        $query = "UPDATE bank_account SET balance = ? WHERE account_number = ?";

        $statement = $this->pdo->prepare($query);

        $statement->execute(array($this->balance, $this->accountNumber));

    }

    /**

     * Adds account information to the database.

     */

    protected function addAccount()

    {

        $query = "INSERT INTO bank_account (balance, account_number) VALUES(?, ?)";

        $statement = $this->pdo->prepare($query);

        $statement->execute(array($this->balance, $this->accountNumber));

    }

    static public function createTable(PDO $pdo)

    {

        $query = "

            CREATE TABLE bank_account (

                account_number VARCHAR(17) PRIMARY KEY,

                balance DECIMAL(9,2) NOT NULL DEFAULT 0

            );

        ";

        $pdo->query($query);

    }

}

?>