<?php
/**
* This is a complex example script for the TM::MyCSV class. It shows how to
* create and change a table, how to use insert(), delete() and sort().
*
* @author Thiemo Mättig (http://maettig.com/)
*/
// The method sort() depends on your locale settings if you use the sorting type
// flag SORT_LOCALE_STRING.
setlocale(LC_ALL, "de_DE@euro", "de_DE", "deu_deu");
// Include the PHP class first.
require_once("MyCSV.class.php");
// Read the file products.csv if exists. If you run the script for the first
// time, the write() call below will create the file if required.
$products = new MyCSV("products");
if (isset($_REQUEST['action']) && $_REQUEST['action'] == "delete")
{
$products->delete($_REQUEST['id']);
$products->write();
}
// Check if something was submitted in the form.
if (!empty($_POST['name']))
{
// Add a new row to the table. If the file does not exist and the table
// contains no fields, this call also creates the fields. Not that all
// TM::MyCSV tables will contain an 'id' column. Every row you add to the
// table will get a new ID (similar to AUTO_INCREMENT from MySQL).
$products->insert(array(
'name' => stripslashes($_POST['name']),
'price' => stripslashes($_POST['price']),
));
// Save the whole table to disk.
$products->write();
}
// Check if the user clicked one of the table headers.
$sort = isset($_REQUEST['sort']) ? $_REQUEST['sort'] : "";
$desc = isset($_REQUEST['desc']) ? " DESC" : "";
// It's a very bad idea to use something that the user entered in your SQL
// statements. This leads to SQL insertions. We do a translation instead. All
// invalid values, hacking attempts and so on will fall back to the default
// behaviour.
switch ($sort)
{
case "name":
// Order by name in ascending or descending order. Two products with the
// same name will be ordered by price.
$products->sort("name SORT_LOCALE_STRING SORT_NULL $desc, price SORT_NUMERIC");
break;
case "price":
// Order by price using a numeric comparison. SORT_NULL moves products
// without a price to the bottom.
$products->sort("price SORT_NUMERIC SORT_NULL $desc, name SORT_LOCALE_STRING");
break;
default:
// Ordered by ID ("unordered") by default.
if (!$desc)
{
$products->ksort();
}
else
{
$products->krsort();
}
break;
}
// This is the end of the controller component of the script and the start of
// the view component. Check http://en.wikipedia.org/wiki/Model–view–controller
// if you don't know what MVC is. You don't need the frameworks mentioned there.
// The idea of MVC is simple: Prepare everything in the controller part (above
// these lines) and display everything in the view part (below these lines).
// Using code in the view part is not forbidden. However, it's forbidden to
// change data.
?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html lang="de" xml:lang="de" xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1" />
<title>TM::MyCSV Example Script</title>
<meta name="robots" content="none" />
<style type="text/css">
/* A little bit of CSS to make the example look nice. */
body
{
color: #333;
font-family: Verdana, sans-serif;
}
form div{
margin: 0.5em 0;
}
label
{
cursor: pointer;
float: left;
padding-right: 0.6em;
text-align: right;
width: 10em;
}
table
{
border-collapse: collapse;
border-spacing: 0;
empty-cells: show;
}
th, td
{
border-bottom:1px solid #CCC;
padding: 0.4em 1em;
text-align: left;
vertical-align: top;
}
th, th a
{
background: #666;
color: #FFF;
}
</style>
</head>
<body>
<h1>TM::MyCSV Example Script</h1>
<!-- In most cases I use my TM::Apeform class to create such forms. In this
case, I don't want another dependency in this example script. -->
<form action="<?php echo $_SERVER['PHP_SELF']?>" method="post">
<fieldset>
<legend>Add a new product</legend>
<div>
<label for="name">Product name:</label>
<input id="name" name="name" type="text" />
</div>
<div>
<label for="price">Price:</label>
<input id="price" name="price" type="text" />
</div>
<div>
<label> </label>
<input type="submit" value="Add new product" />
</div>
</fieldset>
</form>
<table>
<tr>
<th>ID</th>
<th>
<a href="<?php echo $_SERVER['PHP_SELF']?>?sort=name<?php
if ($sort == "name" && !$desc) echo '&desc'?>">Product name</a><?php
if ($sort == "name") echo $desc ? '▼' : '▲'?>
</th>
<th>
<a href="<?php echo $_SERVER['PHP_SELF']?>?sort=price<?php
if ($sort == "price" && !$desc) echo '&desc'?>">Price</a><?php
if ($sort == "price") echo $desc ? '▼' : '▲'?>
</th>
<th></th>
</tr>
<?php
// Sometimes it is easier to use echo statements instead of the mixed HTML and
// PHP syntax above. I use both depending on the amount of HTML code.
while ($product = $products->each())
{
echo '<tr>';
echo '<td>' . htmlspecialchars($product['id']) . '</td>';
echo '<td>' . htmlspecialchars($product['name']) . '</td>';
echo '<td>';
if (empty($product['price']))
{
echo '—';
}
else
{
echo htmlspecialchars($product['price']) . ' €';
}
echo '</td>';
echo '<td><a href="' . $_SERVER['PHP_SELF'] . '?action=delete&id=' .
htmlspecialchars($product['id']) . '">Delete</a></td>';
echo '</tr>';
}
?>
</table>
</body>
</html>
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