+- انجمن عمومی گسترش فناوری آگو (http://forums.ago.ir)
+-- انجمن: انجمن های عمومی گسترش فناوری آگو (/forumdisplay.php?fid=1)
+--- انجمن: برنامه نویسی (/forumdisplay.php?fid=13)
+--- موضوع: ساخت یک نمونه ساده mvc (/showthread.php?tid=2086)
ساخت یک نمونه ساده mvc - agotd - 02-05-2013 02:46 PM
index.php
کد php:
<?php
require_once('lib/DataAccess.php');
require_once('lib/ProductModel.php');
require_once('lib/ProductView.php');
require_once('lib/ProductController.php');
$dao=& new DataAccess ('localhost','user','pass','dbname');
$productModel=& new ProductModel($dao);
$productController=& new ProductController($productModel,$_GET);
echo $productController->display();
?>lib/ProductView.php
کد php:
<?php
/**
* Binds product data to HTML rendering
*/
class ProductView {
/**
* Private
* $model an instance of the ProductModel class
*/
var $model;
/**
* Private
* $output rendered HTML is stored here for display
*/
var $output;
//! A constructor.
/**
* Constucts a new ProductView object
* @param $model an instance of the ProductModel class
*/
function ProductView (&$model) {
$this->model=& $model;
}
//! A manipulator
/**
* Builds the top of an HTML page
* @return void
*/
function header () {
$this->output=
<<<EOD
<!doctype html public "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title> Our Products </title>
<style>
body { font-size: 13.75px; font-family: verdana }
td { font-size: 13.75px; font-family: verdana }
.title { font-size: 15.75px; font-weight: bold; font-family: verdana }
.heading {
font-size: 13.75px; font-weight: bold;
font-family: verdana; background-color: #f7f8f9 }
.nav { background-color: #f7f8f9 }
</style>
</head>
<body>
<div align="center" class="title">Our Products</div>
EOD;
$this->output.="\n<div align=\"right\"><a href=\"".
$_SERVER['PHP_SELF']."\">Start Over</a></div>\n";
}
//! A manipulator
/**
* Builds the bottom of an HTML page
* @return void
*/
function footer () {
$this->output.="</body>\n</html>";
}
//! A manipulator
/**
* Displays a single product
* @return void
*/
function productItem($id=1) {
$this->model->listProduct($id);
while ( $product=$this->model->getProduct() ) {
$this->output.="<p><b>Name</b>:".$product['PRODUCTNAME']."</p>".
"<p><b>Price</b>:".$product['UNITPRICE']."</p>".
"<p><b># In Stock</b>:".$product['UNITSINSTOCK']."</p>";
if ( $this->$product['DISCONTINUED']==1 ) {
$this->output.="<p>This product has been discontinued.</p>";
}
}
}
//! A manipulator
/**
* Builds a product table
* @return void
*/
function productTable($rownum=1) {
$rowsperpage='20';
$this->model->listProducts($rownum,$rowsperpage);
$this->output.="<table width=\"600\" align=\"center\">\n<tr>\n".
"<td class=\"heading\">Name</td>\n".
"<td class=\"heading\">Price</td>\n</tr>\n";
while ( $product=$this->model->getProduct() ) {
$this->output.="<tr>\n<td><a href=\"".$_SERVER['PHP_SELF'].
"?view=product&id=".$product['PRODUCTID']."\">".
$product['PRODUCTNAME']."</a></td>".
"<td>".$product['UNITPRICE']."</td>\n</tr>\n";
}
$this->output.="<tr class=\"nav\">\n";
if ( $rownum!=0 && $rownum > $rowsperpage ) {
$this->output.="<td><a href=\"".$_SERVER['PHP_SELF'].
"?view=table&rownum=".($rownum-$rowsperpage).
"\"><< Prev</a></td>";
} else {
$this->output.="<td> </td>";
}
if ( $product['PRODUCTID'] < ($rownum + $rowsperpage) ) {
$this->output.="<td><a href=\"".$_SERVER['PHP_SELF'].
"?view=table&rownum=".($rownum+$rowsperpage).
"\">Next >></a></td>";
} else {
$this->output.="<td> </td>\n";
}
$this->output.="</tr>\n</table>\n";
}
//! An accessor
/**
* Returns the rendered HTML
* @return string
*/
function display () {
return $this->output;
}
}
?>lib/ProductController.php
کد php:
<?php
/**
* Controls the application
*/
class ProductController extends ProductView {
//! A constructor.
/**
* Constucts a new ProductController object
* @param $model an instance of the ProductModel class
* @param $getvars the incoming HTTP GET method variables
*/
function ProductController (&$model,$getvars=null) {
ProductView::ProductView($model);
$this->header();
switch ( $getvars['view'] ) {
case "product":
$this->productItem($getvars['id']);
break;
default:
if ( empty ($getvars['rownum']) ) {
$this->productTable();
} else {
$this->productTable($getvars['rownum']);
}
break;
}
$this->footer();
}
}
?>lib/ProductModel.php
کد php:
<?php
/**
* Fetches "products" from the database
*/
class ProductModel {
/**
* Private
* $dao an instance of the DataAccess class
*/
var $dao;
//! A constructor.
/**
* Constucts a new ProductModel object
* @param $dbobject an instance of the DataAccess class
*/
function ProductModel (&$dao) {
$this->dao=& $dao;
}
//! A manipulator
/**
* Tells the $dboject to store this query as a resource
* @param $start the row to start from
* @param $rows the number of rows to fetch
* @return void
*/
function listProducts($start=1,$rows=50) {
$this->dao->fetch("SELECT * FROM products LIMIT ".$start.", ".$rows);
}
//! A manipulator
/**
* Tells the $dboject to store this query as a resource
* @param $id a primary key for a row
* @return void
*/
function listProduct($id) {
$this->dao->fetch("SELECT * FROM products WHERE PRODUCTID='".$id."'");
}
//! A manipulator
/**
* Fetches a product as an associative array from the $dbobject
* @return mixed
*/
function getProduct() {
if ( $product=$this->dao->getRow() )
return $product;
else
return false;
}
}
?>Dataaccess.php
کد php:
<?php
/**
* A simple class for querying MySQL
*/
class DataAccess {
/**
* Private
* $db stores a database resource
*/
var $db;
/**
* Private
* $query stores a query resource
*/
var $query; // Query resource
//! A constructor.
/**
* Constucts a new DataAccess object
* @param $host string hostname for dbserver
* @param $user string dbserver user
* @param $pass string dbserver user password
* @param $db string database name
*/
function DataAccess ($host,$user,$pass,$db) {
$this->db=mysql_pconnect($host,$user,$pass);
mysql_select_db($db,$this->db);
}
//! An accessor
/**
* Fetches a query resources and stores it in a local member
* @param $sql string the database query to run
* @return void
*/
function fetch($sql) {
$this->query=mysql_unbuffered_query($sql,$this->db); // Perform query here
}
//! An accessor
/**
* Returns an associative array of a query row
* @return mixed
*/
function getRow () {
if ( $row=mysql_fetch_array($this->query,MYSQL_ASSOC) )
return $row;
else
return false;
}
}
?>