DailyMatters/SundayMVC.php

## SundayMVC.php
<?php

/*****************************************************************
Copyright (c) 2015
Cláudio Ribeiro <claudio.santos.ribeiro@gmail.com>

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
*****************************************************************/

//===============================================================
// Controller
// Parses the HTTP request and routes to the appropriate function
//===============================================================

//ATTENTION: this router is not Exception handled yet

class SimpleController{

public function route( $r, callable $callback ){
	$this->r[$r] = $callback;
}

public function execute(){

	$server = $_SERVER;
	$path = 'PATH_INFO';
	$p = isset( $server[$path] ) ? $server[$path] : '/';

	if( isset($this->r[$p]) ){
		$this->r[$p]();
	}else{
		header("HTTP/1.0 404 Not Found");
		die('<html><head><title>404 Not Found</title></head><body><h1>Not Found</h1><p>The requested URL was not found on this server.</p><p>Please go <a href="javascript: history.back(1)">back</a> and try again.</p><hr /></body></html>');
	}

	}
}

// ===============================================================
// View
// For html templates stored on the /templates folder
// ===============================================================

class SimpleView {

    protected $template_dir = 'templates/';
    protected $vars = array();

    public function __construct($template_dir = null) {
        if ($template_dir !== null) {
            // Check here whether this directory really exists
            $this->template_dir = $template_dir;
        }
    }
    public function render($template_file) {
        if (file_exists($this->template_dir.$template_file)) {
            include $this->template_dir.$template_file;
        } else {
            throw new Exception('no template file ' . $template_file . ' present in directory ' . $this->template_dir);
        }
    }
    public function __set($name, $value) {
        $this->vars[$name] = $value;
    }
    public function __get($name) {
        return $this->vars[$name];
    }
}


//===============================================================
// Model/ORM
// Database Handling
//===============================================================

class SimpleDatabase extends PDO {

	// Define configuration
	/*define("DB_HOST", "localhost");
	define("DB_USER", "DBUSER");
	define("DB_PASS", "DBPWD");
	define("DB_NAME", "DBNAME");*/

    private $host      = DB_HOST;
    private $user      = DB_USER;
    private $pass      = DB_PASS;
    private $dbname    = DB_NAME;

    private $dbh;
    private $error;

	private $stmt;

    public function __construct(){
        // Set DSN
        $dsn = 'mysql:host=' . $this->host . ';dbname=' . $this->dbname;
        // Set options
        $options = array(
            PDO::ATTR_PERSISTENT    => true,
            PDO::ATTR_ERRMODE       => PDO::ERRMODE_EXCEPTION
        );
        // Create a new PDO instanace
        try{
            $this->dbh = new PDO($dsn, $this->user, $this->pass, $options);
        }
        // Catch any errors
        catch(PDOException $e){
            $this->error = $e->getMessage();
        }
    }

	public function __destuct(){
	// Adding null connection
		$this->dbh = null;
		$this->isConnected = false;
	}

	// The query, prepare, bind and execute methods allows us to use prepared statements in our DB interactions

	// Prepare
	public function query($query){
		$this->stmt = $this->dbh->prepare($query);
	}

	// Bind
	public function bind($param, $value, $type = null){
		if (is_null($type)) {
			switch (true) {
				case is_int($value):
					$type = PDO::PARAM_INT;
					break;
				case is_bool($value):
					$type = PDO::PARAM_BOOL;
					break;
				case is_null($value):
					$type = PDO::PARAM_NULL;
					break;
				default:
					$type = PDO::PARAM_STR;
			}
		}
		$this->stmt->bindValue($param, $value, $type);
	}

	// Execute
	public function execute(){
		return $this->stmt->execute();
	}

	// Methods to fetch query results

	// Result Set
	public function resultset(){
		$this->execute();
		return $this->stmt->fetchAll(PDO::FETCH_ASSOC);
	}

	// Single
	public function single(){
		$this->execute();
		return $this->stmt->fetch(PDO::FETCH_ASSOC);
	}

	// Row Count
	public function rowCount(){
		return $this->stmt->rowCount();
	}

	// Last Insert Id
	public function lastInsertId(){
		return $this->dbh->lastInsertId();
	}

	// Handling transactions

	// Transactions
	public function beginTransaction(){
		return $this->dbh->beginTransaction();
	}

	public function endTransaction(){
		return $this->dbh->commit();
	}

	public function cancelTransaction(){
		return $this->dbh->rollBack();
	}


	// Debug Dump Parameters
	public function debugDumpParams(){
		return $this->stmt->debugDumpParams();
	}
}
?>
	<?php

	/*****************************************************************
	Copyright (c) 2015
	Cláudio Ribeiro <claudio.santos.ribeiro@gmail.com>

	Permission is hereby granted, free of charge, to any person
	obtaining a copy of this software and associated documentation
	files (the "Software"), to deal in the Software without
	restriction, including without limitation the rights to use,
	copy, modify, merge, publish, distribute, sublicense, and/or sell
	copies of the Software, and to permit persons to whom the
	Software is furnished to do so, subject to the following
	conditions:

	The above copyright notice and this permission notice shall be
	included in all copies or substantial portions of the Software.

	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
	OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
	HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
	WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	OTHER DEALINGS IN THE SOFTWARE.
	*****************************************************************/

	//===============================================================
	// Controller
	// Parses the HTTP request and routes to the appropriate function
	//===============================================================

	//ATTENTION: this router is not Exception handled yet

	class SimpleController{

	public function route( $r, callable $callback ){
	$this->r[$r] = $callback;
	}

	public function execute(){

	$server = $_SERVER;
	$path = 'PATH_INFO';
	$p = isset( $server[$path] ) ? $server[$path] : '/';

	if( isset($this->r[$p]) ){
	$this->r[$p]();
	}else{
	header("HTTP/1.0 404 Not Found");
	die('<html><head><title>404 Not Found</title></head><body><h1>Not Found</h1><p>The requested URL was not found on this server.</p><p>Please go <a href="javascript: history.back(1)">back</a> and try again.</p><hr /></body></html>');
	}

	}
	}

	// ===============================================================
	// View
	// For html templates stored on the /templates folder
	// ===============================================================

	class SimpleView {

	protected $template_dir = 'templates/';
	protected $vars = array();

	public function __construct($template_dir = null) {
	if ($template_dir !== null) {
	// Check here whether this directory really exists
	$this->template_dir = $template_dir;
	}
	}
	public function render($template_file) {
	if (file_exists($this->template_dir.$template_file)) {
	include $this->template_dir.$template_file;
	} else {
	throw new Exception('no template file ' . $template_file . ' present in directory ' . $this->template_dir);
	}
	}
	public function __set($name, $value) {
	$this->vars[$name] = $value;
	}
	public function __get($name) {
	return $this->vars[$name];
	}
	}


	//===============================================================
	// Model/ORM
	// Database Handling
	//===============================================================

	class SimpleDatabase extends PDO {

	// Define configuration
	/*define("DB_HOST", "localhost");
	define("DB_USER", "DBUSER");
	define("DB_PASS", "DBPWD");
	define("DB_NAME", "DBNAME");*/

	private $host = DB_HOST;
	private $user = DB_USER;
	private $pass = DB_PASS;
	private $dbname = DB_NAME;

	private $dbh;
	private $error;

	private $stmt;

	public function __construct(){
	// Set DSN
	$dsn = 'mysql:host=' . $this->host . ';dbname=' . $this->dbname;
	// Set options
	$options = array(
	PDO::ATTR_PERSISTENT => true,
	PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION
	);
	// Create a new PDO instanace
	try{
	$this->dbh = new PDO($dsn, $this->user, $this->pass, $options);
	}
	// Catch any errors
	catch(PDOException $e){
	$this->error = $e->getMessage();
	}
	}

	public function __destuct(){
	// Adding null connection
	$this->dbh = null;
	$this->isConnected = false;
	}

	// The query, prepare, bind and execute methods allows us to use prepared statements in our DB interactions

	// Prepare
	public function query($query){
	$this->stmt = $this->dbh->prepare($query);
	}

	// Bind
	public function bind($param, $value, $type = null){
	if (is_null($type)) {
	switch (true) {
	case is_int($value):
	$type = PDO::PARAM_INT;
	break;
	case is_bool($value):
	$type = PDO::PARAM_BOOL;
	break;
	case is_null($value):
	$type = PDO::PARAM_NULL;
	break;
	default:
	$type = PDO::PARAM_STR;
	}
	}
	$this->stmt->bindValue($param, $value, $type);
	}

	// Execute
	public function execute(){
	return $this->stmt->execute();
	}

	// Methods to fetch query results

	// Result Set
	public function resultset(){
	$this->execute();
	return $this->stmt->fetchAll(PDO::FETCH_ASSOC);
	}

	// Single
	public function single(){
	$this->execute();
	return $this->stmt->fetch(PDO::FETCH_ASSOC);
	}

	// Row Count
	public function rowCount(){
	return $this->stmt->rowCount();
	}

	// Last Insert Id
	public function lastInsertId(){
	return $this->dbh->lastInsertId();
	}

	// Handling transactions

	// Transactions
	public function beginTransaction(){
	return $this->dbh->beginTransaction();
	}

	public function endTransaction(){
	return $this->dbh->commit();
	}

	public function cancelTransaction(){
	return $this->dbh->rollBack();
	}


	// Debug Dump Parameters
	public function debugDumpParams(){
	return $this->stmt->debugDumpParams();
	}
	}
	?>