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classes.php
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classes.php
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<?php
//Must be on top of everything to function correctly
include 'includes/headerbarFunctions.php';
//Include this inside the <head> tag to require user to be logged in to view the page.
include 'includes/membersOnly.php';
include 'includes/class_functions.php';
if (isset($_GET['class']) && isset($_GET['id']))
{
if (strcmp(strtolower($_GET['delete']), 'notepad') == 0)
{
//Remove notepad from class
removeNotepadFromClass($_GET['id'], $_GET['class']);
}
else if (strcmp(strtolower($_GET['delete']), 'user') == 0)
{
removeStudentFromClass($_GET['id'], $_GET['class']);
}
}
function getClassData($classid)
{
$arr = array();
$classid = mysql_real_escape_string($classid);
$padRow = mysql_query("SELECT name,description,password,owner FROM classes WHERE id='$classid'");
$row = mysql_fetch_assoc($padRow);
if ($row)
{
$arr['name'] = $row['name'];
$arr['description'] = $row['description'];
$arr['password'] = $row['password'];
$arr['owner'] = $row['owner'];
$arr['id'] = $classid;
}
else
{
$arr['name'] = "Error: Couldn't find class name";
$arr['description'] = "Error: Couldn't find class description";
$arr['password'] = "";
$arr['owner'] = "Error: Couldn't find class owner";
$arr['id'] = $classid;
}
mysql_free_result($padRow);
return $arr;
}
function printAllNotepads($classid)
{
$classid = mysql_real_escape_string($classid);
$padRow = mysql_query("SELECT notebookid FROM classbooks WHERE classid='$classid'");
$notepadHTML = "";
while ($row = mysql_fetch_assoc($padRow))
{
$notepadHTML = $notepadHTML.getNotepadRow($row['notebookid'],$classid);
}
mysql_free_result($padRow);
return $notepadHTML;
}
function printAllStudents($classid)
{
$classid = mysql_real_escape_string($classid);
$padRow = mysql_query("SELECT userid FROM classmates WHERE classid='$classid'");
$notepadHTML = "";
$num = 1;
while ($row = mysql_fetch_assoc($padRow))
{
$notepadHTML = $notepadHTML.getStudentRow($row['userid'],$classid,$num);
$num++;
}
mysql_free_result($padRow);
return $notepadHTML;
}
function getNotepadRow($id,$classid)
{
$id = mysql_real_escape_string($id);
$padRow = mysql_query("SELECT name,description,created,modified,userid FROM notebooks WHERE id='$id'");
$row = mysql_fetch_assoc($padRow);
$rowHTML = '';
if($row){
$rowHTML = '
<tr>
<td align="left">
<a href="canvas.php?id='.$id.'&classid='.$classid.'">'.$row['name'].'</a>
</td>
<td align="left">
'.getUsername($row['userid']).'
</td>
<td align="center">
'.getNiceTime($row['modified']).'
</td>
<td align="center">
'.getNiceTime($row['created']).'
</td>
<td align="center">
<a href="./classes.php?class='.$classid.'&id='.$id.'&delete=notepad" onClick="return confirmRemoveNotepad()">
<img src="img/buttons/pencl_delete.png" title="Remove from class" alt="Remove">
</a>
</td>
</tr>
';
}
mysql_free_result($padRow);
return $rowHTML;
}
function getStudentRow($id,$classid,$num)
{
$id = mysql_real_escape_string($id);
$padRow = mysql_query("SELECT username FROM users WHERE userid='$id'");
$row = mysql_fetch_assoc($padRow);
$rowHTML = '';
if($row){
$rowHTML = '
<tr>
<td align="center">
'.$num.'
</td>
<td align="left">
'.$row['username'].'
</td>
<td align="center">
<a href="./classes.php?class='.$classid.'&id='.$id.'&delete=user" onClick="return confirmRemoveStudent()">
<img src="img/buttons/pencl_delete.png" title="Remove student from class" alt="Remove">
</a>
</td>
</tr>
';
}
mysql_free_result($padRow);
return $rowHTML;
}
function getAllClasses()
{
$userid = mysql_real_escape_string($_SESSION['id']);
$classRow = mysql_query("SELECT name,description,password,id FROM classes WHERE owner='$userid'");
$classHTML = "";
while ($row = mysql_fetch_assoc($classRow))
{
$classHTML = $classHTML.'
<tr>
<td>
<a href="?class='.$row['id'].'">'.$row['name'].'</a>
</td>
</tr>
';
}
mysql_free_result($classRow);
return $classHTML;
}
$class = getClassData($_GET['class']);
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Notepad Selection - Pencl</title>
<!-- Load jQuery -->
<script type="text/javascript" src="http://www.google.com/jsapi"></script>
<script type="text/javascript">
google.load("jquery", "1");
</script>
<link rel="stylesheet" type="text/css" href="css/reset.css" media="screen">
<link rel="stylesheet" type="text/css" href="css/styles.css" media="screen">
<link rel="stylesheet" type="text/css" href="css/twocolumn.css" media="screen">
<link rel="stylesheet" type="text/css" href="css/dialog/jqModal.css">
<script type="text/javascript" src="js/dialog/jqModal.js"></script>
<?php
//Must be in header!
include 'includes/topbar_header.php';
?>
<?php
//Put this at the end of the <head> tag to track
include 'includes/tracker.php';
?>
</head>
<body>
<?php
//Must be first thing in the <body> tag to function correctly
include 'includes/topbar.php';
?>
<div id="pagewide">
<h1>Manage Classes</h1>
<div class="twoColumn">
<div class="left">
<table>
<thead>
<tr class="head">
<td>
<strong>Classes:</strong>
</td>
</tr>
</thead>
<tbody>
<?php
//Grab our classes
echo getAllClasses();
?>
</tbody>
</table>
<br>
<a href="createClass.php">Create a class</a>
</div>
<div class="right">
<?php
//Display table only if we are displaying a class
//Start display
if (is_numeric($_GET['class'])) {
echo '<h1>Class: <strong>'.$class['name'].'</strong> ';
echo '<a href="editClass.php?classid='.$class['id'].'">(Edit)</a>';
echo '<a href= "#" onclick="deleteClass();"> (Delete)</a>';
if (strlen($class['password']) > 0)
{
echo '<img src="img/buttons/pencl_lock.png" title="Password Protected" alt="(Password Protected)">';
}
echo '</h1>';
echo '<p>Description: '.$class['description'].'</p>';
?>
<br>
<div class="notebook">
<table>
<thead>
<tr class="head">
<td>
<strong>Notepad</strong>
</td>
<td>
<strong>Creator</strong>
</td>
<td>
<strong>Modified</strong>
</td>
<td>
<strong>Created</strong>
</td>
<td>
<strong>Options</strong>
</td>
</tr>
</thead>
<tbody>
<?php
//Grab our notepads
echo printAllNotepads($_GET['class']);
?>
</tbody>
</table>
</div>
<br>
<p>Tip: To add notebooks to this class, share them from your <a href="noteselection.php">notes</a></p>
<br>
<h1>Students enrolled:</h1>
<div class="notebook">
<table>
<thead>
<tr class="head">
<td>
<strong>#</strong>
</td>
<td>
<strong>Username</strong>
</td>
<td>
<strong>Options</strong>
</td>
</tr>
</thead>
<tbody>
<?php
//Grab our students
echo printAllStudents($_GET['class']);
?>
</tbody>
</table>
</div>
<?php
//End display
}
else
{
?>
<p>Select a class on the left, or <a href="createClass.php">create a class</a>.</p>
<?php
}
?>
</div>
</div>
</div>
<script type="text/javascript">
function confirmRemoveStudent()
{
return confirm('Are you sure you want to remove this student?\nAll notepads linking to this student will also be removed!');
}
function confirmRemoveNotepad()
{
return confirm('Are you sure you want to remove this notepad?');
}
function confirmRemoveClass()
{
return confirm('Are you sure you want to Delete?');
}
function deleteClass()
{
var querystring = location.search.replace('?', '').split('&');
var queryObj ={};
for (var i = 0; i < querystring.length; i++) {
var name = querystring[i].split('=')[0];
var value = querystring[i].split('=')[1];
queryObj[name] = value;
}
$.ajax({
type: 'POST',
url: './util/classPost.php',
data: {
action: 'delete',
classid: parseInt(queryObj['class'])
},
statusCode: {
404: function() {
alert('Page not found!');
// Hide progress
//tinymce.get('elm1').setProgressState(0);
},
409: function(jqXHR, status, error) {
alert('Error: ' + error);
// Hide progress
//tinymce.get('elm1').setProgressState(0);
},
200: function(data) {
alert(data);
// Hide progress
//window.setTimeout(function() {tinymce.get('elm1').setProgressState(0)}, 500);
}
}
});
confirmRemoveClass();
var url = window.location.href;
var newUrl = url.split('?');
window.location.href = newUrl[0];
}
</script>
</body>
</html>