<?php
/**
* This is an example of usage for Naf Database Tools:
* - Naf_Table
* - Naf_Record
* - Naf_Select
*
* This is a basic CRUD (Create/Read/Update/Delete) application
*/
/* the necessary includes. in my projects, I use __autoload(),
therefore I don't need ot write these routines */
$root = dirname(__FILE__) . '/';
require_once $root . 'Naf/Table.php';
require_once $root . 'Naf/Validator.php';
require_once $root . 'Naf/Validator/Result.php';
require_once $root . 'Naf/Record.php';
require_once $root . 'Naf/Select.php';
// the Book class: ActiveRecord for the book table
require_once $root . 'lib/Book.php';
// let's connect to database
$pdo = new PDO("sqlite:" . $root . "sqlite/db");
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
try {
$pdo->query("CREATE TABLE IF NOT EXISTS book (id INTEGER PRIMARY KEY, title varchar(255), description TEXT)");
} catch (PDOException $e) {
die("Unable to execute queries: " . $e->getMessage());
}
Naf_Table::setDefaultConnection($pdo);
$errorList = array();
if ($_SERVER['REQUEST_METHOD'] == 'POST')
{
switch (@$_POST['do'])
{
case "create":
// CREATE action
$newBook = new Book();
$newBook->import($_POST);// notice - we don't care about redundant keys we are importing.
// Naf_Record will care about importing only the needed keys
if ($newBook->save())// should return the new book #ID, obviously > 0
{
header("Location: " . $_SERVER['PHP_SELF']);
exit();
} else {
$errorList = $newBook->getErrorList();
}
break;
case "update":
// UPDATE action
$updated = new Book();
if ($updated->load(@$_POST['id']))// first, we need to know what row to update
{
$updated->import($_POST);
if ($updated->save())
{
header("Location: " . $_SERVER['PHP_SELF']);
exit();
} else {
$errorList = $updated->getErrorList();
}
} else {
$errorList[] = "Book #ID not found: " . var_export(@$_POST['id'], 1);
}
break;
case "delete":
// DELETE action
$deleted = new Book();
if ($deleted->load(@$_POST['id']))// first, we need to know what row to delete
{
if ($deleted->delete())
{
header("Location: " . $_SERVER['PHP_SELF']);
exit();
} else {
$errorList[] = "Unfortunately, delete failed";
}
} else {
$errorList[] = "Book #ID not found: " . var_export(@$_POST['id'], 1);
}
break;
default:
break;
}
}
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Naf Database Tools example: basic CRUD (Create/Read/Update/Delete) application</title>
</head>
<body>
<?php /* Display errors if any */ ?>
<?php if (count($errorList)) : ?>
<ul style="color:red">
<?php foreach ($errorList as $message) : ?>
<li><?=$message?></li>
<?php endforeach; ?>
</ul>
<?php endif; ?>
<h2>Create new book</h2>
<form method="POST" action="">
Title: <input type="text" name="title" size="50" />
<br />
Description: <textarea name="description" cols="50" rows="5"></textarea>
<br />
<input type="submit" name="do" value="create" />
</form>
<?php /* form to submitted in order to delete a book */ ?>
<form method="POST" action="">
<input type="hidden" name="id" id="delete-form-id" />
<input type="hidden" name="go" value="delete" />
</form>
<h2>Existing books</h2>
<?php
$bookList = new Naf_Select('book');
/* apply search filter - ONLY in case a search form has been submitted (notice registerFilter_--If--_()) */
$bookList->registerFilterIf(is_string(@$_GET['query']), 'title LIKE ?', "%" . @$_GET['query'] . "%");
if (! $bookList->count())
{
?><h3>No books matching your criteria in the database</h3><?php
}
?>
<form method="GET" action="">
Search for a book: <input type="text" name="query" value="<?=htmlspecialchars(@$_GET['query'], ENT_QUOTES)?>" />
<input type="submit" value="find" />
</form>
<style>
.books td {
vertical-align:top;
}
</style>
<table border="1" class="books">
<thead>
<tr>
<th>Title</th>
<th>Description</th>
<th colspan="2">Actions</th>
</tr>
</thead>
<tbody>
<?php foreach ($bookList->export() as $item) : ?>
<?php /* the markup is not valid, but this is an example only... */ ?>
<form method="POST" action="">
<input type="hidden" name="id" value="<?=$item['id']?>" />
<tr>
<td><input type="text" name="title" value="<?=htmlspecialchars($item['title'], ENT_QUOTES)?>" /></td>
<td><textarea name="description" cols="50" rows="2"><?=htmlspecialchars($item['description'], ENT_QUOTES)?></textarea></td>
<td><input type="submit" name="do" value="update" /></td>
<td><input type="submit" name="do" value="delete" /></td>
</tr>
</form>
<?php endforeach; ?>
</tbody>
</table>
<h2>NOTES:</h2>
<ol>
<li>Remember to download naf-validator package from phpclasse.org!</li>
<li>For the example to work, you will have to create a folder named `Naf' in this folder,
with contents as follows:
<b>Naf/Table.php</b>, <b>Naf/Validator.php</b>, <b>Naf/Validator/Result.php</b>,
<b>Naf/Record.php</b>, <b>Naf/Select.php</b></li>
<li>The SQLite database is supposed to be in `sqlite/db'</li>
<li>To get the example working, you won't need the actual database file, but...</li>
<li>REMEMBER: the web-server user will need a write-access to `sqlite' directory!</li>
</ol>
</body>
</html>
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