<?php
###############
# ADD #
###############
// Add the new class if one is being added //
if($_POST["addclass"] == 1 && $_POST["title"] != "" && $_POST["teacher"] != "" && $_POST["semester"] != "" && $_POST["roomnum"] != "" && $_POST["periodnum"] != "")
{
if($_POST['fullyear']!=1)
{ $dotw = '';
// Combine the days of the week to be entered into the database //
$days = $_POST["Days"];
for($i=0; $i<sizeof($days); $i++)
{
$dotw .= $days[$i];
}
// Get the termid for insertion of the class //
$query = mysql_query('SELECT termid FROM semesters WHERE semesterid = '.$_POST["semester"]);
$termid = @mysql_result($query,0);
$query = mysql_query("INSERT INTO courses VALUES('', '$_POST[semester]', '$termid', '$_POST[title]', '$_POST[teacher]', '$_POST[sectionnum]', '$_POST[roomnum]', '$_POST[periodnum]','','','','','','','','','$dotw','$_POST[substitute]','')")
or die("ManageClasses.php: Unable to insert new class - " . mysql_error());
}
else
{
// Make sure they haven't selected the same id for both semesters //
if ($_POST['semester']!=$_POST['semester2'])
{
// Combine the days of the week to be entered into the database //
$days = $_POST["Days"];
for($i=0; $i<sizeof($days); $i++)
{
$dotw .= $days[$i];
}
// Insert the class for the first semester //
$query = mysql_query("INSERT INTO courses VALUES('', '$_POST[semester]', '$termid', '$_POST[title]', '$_POST[teacher]', '$_POST[sectionnum]', '$_POST[roomnum]', '$_POST[periodnum]','','','','','','','','','$dotw','$_POST[substitute]', '')")
or die("ManageClasses.php: Unable to insert new class - " . mysql_error());
// Get it's ID //
$course1 = mysql_insert_id();
// Insert the class for the second semester //
$query = mysql_query("INSERT INTO courses VALUES('', '$_POST[semester2]', '$termid', '$_POST[title]', '$_POST[teacher]', '$_POST[sectionnum]', '$_POST[roomnum]', '$_POST[periodnum]','','','','','','','','','$dotw','$_POST[substitute]', '')")
or die("ManageClasses.php: Unable to insert new class - " . mysql_error());
// Get it's ID //
$course2 = mysql_insert_id();
// Update the classes so that they'll know about each other //
$query = mysql_query("UPDATE courses SET secondcourseid = $course2 WHERE courseid = $course1");
$query = mysql_query("UPDATE courses SET secondcourseid = $course1 WHERE courseid = $course2");
}
}
}
##############
# EDIT #
##############
// Edit the class if one is being edited //
if($_POST["editclass"] == 1 && $_POST["title"] != "" && $_POST["teacher"] != "" && $_POST["semester"] != "" && $_POST["roomnum"] != "" && $_POST["periodnum"] != "")
{
// Combine the days of the week to be entered into the database //
$days = $_POST["Days"];
for($i=0; $i<sizeof($days); $i++)
{
$dotw .= $days[$i];
}
$query = mysql_query("UPDATE `courses` SET `coursename`='$_POST[title]', `teacherid`='$_POST[teacher]', `semesterid`='$_POST[semester]', `sectionnum`='$_POST[sectionnum]', `roomnum`='$_POST[roomnum]', `periodnum`='$_POST[periodnum]', `dotw`='$dotw', `substituteid`='$_POST[substitute]' WHERE `courseid`='$_POST[courseid]' LIMIT 1")
or die("ManageClasses.php: Unable to update the class information - ".mysql_error());
}
##############
# DELETE #
##############
// Delete the classess that the user has requested as well as the classes belonging to those classess //
if($_POST["deleteclass"] == 1)
{
require_once("DeleteFunctions.php");
$delete = $_POST["delete"];
for($i=0; $i<sizeof($delete); $i++)
{
$query = mysql_query("SELECT secondcourseid FROM courses WHERE courseid = $delete[$i]");
$secondclass = mysql_fetch_row($query);
deleteCourse($delete[$i]);
deleteCourse($secondclass[0]);
}
}
print("<script language='JavaScript'>
// Function to make sure the user wants to delete the class(es) //
function validate()
{
if( document.classes.selectclass.value > 0 )
{
var confirmed = confirm(\"Deleteing a class will also delete the class bulletins, tardies, attendance, assignments, and registrations that occured during that class. \\n \\nAre you sure?\");
if( confirmed == true )
{
document.classes.submit();
}
}
else
{
alert('You must select a class to delete.');
}
}
// Function to make sure only one checkbox has been selected //
function checkboxes()
{
if( document.classes.selectclass.value == 1 )
{
document.classes.submit();
}
else
{
if( document.classes.selectclass.value > 1 )
{
alert('You can only edit one class at a time.');
}
else
{
alert(document.classes.selectclass.value);
alert('You must select a class to edit.');
}
}
}
// Function to keep track of how many checkboxes are checked //
function updateboxes(row)
{
row = row + 2;
if(document.classes.elements[row].checked)
{
document.classes.selectclass.value = Math.round(document.classes.selectclass.value) - 1;
}
else
{
document.classes.selectclass.value = Math.round(document.classes.selectclass.value) + 1;
}
}
</script>
<h1>Manage Classes</h1>
<br>
<form name='classes' action='./index.php' method='POST'>
<table align='center' width='900' cellspacing='0' cellpadding='0' border='0'>
<b>Semester: </b> <select name='semester' onChange='document.classes.submit();'>
");
// Get a list of semesters //
$query = mysql_query("SELECT semesterid, title FROM semesters ORDER BY startdate DESC")
or die("ViewCourses.php: Unable to get a list of semesters for drop-down - ".mysql_error());
if($_POST['semester']==NULL)
{
$q = mysql_query("SELECT semesterid FROM semesters WHERE startdate < CURDATE() < enddate ORDER BY startdate");
$temp = mysql_fetch_row($q);
$_POST['semester'] = $temp[0];
}
$count=0;
$all = "";
while($semester = mysql_fetch_row($query))
{
if($count==0)
$all = " $semester[0]";
else
$all .= " OR semesterid = $semester[0]";
print("<option value='$semester[0]' ".( $_POST['semester']==$semester[0]&&$_POST['semester']!=NULL ? "SELECTED" : "").">$semester[1]</option>");
$count++;
}
print("
<option value='-1' ".($_POST['semester']==-1 ? "SELECTED" : "").">All</option>");
if($_POST['semester']==-1)
$_POST['semester']=$all;
print(" </select>
<br><br>
</td>
</tr>
<tr>
<td>
<input type='button' value='Add' onClick=\"document.classes.page2.value='9';document.classes.submit();\">
<input type='button' value='Edit' onClick='document.classes.page2.value=11;checkboxes();'>
<input type='button' value='Delete' onClick='document.classes.deleteclass.value=1;validate();'>
<input type='button' value='Show in Grid' onClick='document.classes.page2.value=25;document.classes.submit();' />
<br><br>
<table cellspacing='0' width='900' cellpadding='5' class='dynamiclist'>
<tr class='header'>
<td> </td>
<th>Class Name</th>
<th>Teacher</th>
<th>Semester</th>
<th>Section Number</th>
<th>Room Number</th>
<th>Period Number</th>
<th>Days</th>
<th>Substitute</th>
</tr>");
// Get the total number of teachers to know how many pages to have //
if($_POST['semester']!="")
{
$query = mysql_query("SELECT COUNT(*) FROM courses WHERE semesterid = $_POST[semester]")
or die("$_POST[semester] - ManageClasses.php: Unable to retrieve total number of classes - ".mysql_error());
$numrows = mysql_result($query,0);
$numpages = ceil($numrows / 25);
if($_POST["onpage"] == "")
{
$_POST["onpage"]=1;
}
// Get and display the classes //
$query = mysql_query("SELECT c.courseid, c.semesterid, c.coursename, c.sectionnum, c.roomnum, c.periodnum, c.teacherid, c.dotw, c.substituteid FROM courses c WHERE c.semesterid=$_POST[semester]")
or die(mysql_error());
$row = 0;
while($class = mysql_fetch_row($query))
{
$row++;
if($row > ($_POST["onpage"]*25)-25 && $row <= ($_POST["onpage"]*25))
{
$actualrow++;
$q = mysql_query("SELECT s.title FROM semesters s WHERE s.semesterid = $class[1] LIMIT 1")
or die("ManageClasses.php: Unable to get the semester title for the current course being displayed - ".mysql_error());
$semester = mysql_fetch_row($q);
$q = mysql_query("SELECT t.fname, t.lname FROM teachers t WHERE t.teacherid = $class[6] LIMIT 1")
or die("ManageClasses.php: Unable to get the teacher name for the current course being displayed - ".mysql_error());
$teacher = mysql_fetch_row($q);
$q = mysql_query("SELECT t.fname, t.lname FROM teachers t where t.teacherid = '$class[8]' LIMIT 1")
or die("ManageClasses.php: Unable to get the substitute name for the current corse being displayed - ".mysql_error());
$sub = mysql_fetch_row($q);
print("<tr class='".( $row%2==0 ? "even" : "odd" )."'>
<td><input type='checkbox' name='delete[]' value='$class[0]' onClick='updateboxes($actualrow);' /></td>
<td>$class[2]</td>
<td>$teacher[0] $teacher[1]</td>
<td>$semester[0]</td>
<td>$class[3]</td>
<td>$class[4]</td>
<td>$class[5]</td>
<td>$class[7]</td>
<td>$sub[0] $sub[1]</td>
</tr>");
}
}
}
else
{
$numpages = 1;
$_POST['onpage']=1;
}
print(" </table>
<br>
<input type='button' value='Add' onClick='document.classes.page2.value=9;document.classes.submit();'>
<input type='button' value='Edit' onClick='document.classes.page2.value=11;checkboxes();'>
<input type='button' value='Delete' onClick='document.classes.deleteclass.value=1;validate();'>
<input type='button' value='Show in Grid' onClick='document.classes.page2.value=25;document.classes.submit();' />
<br><br>
<font color='red'>* Deleting a class will also delete the information for that class</font>
<br><br>
<center>Page: ");
for($i=1; $i<=$numpages; $i++)
{
if($i == $_POST["onpage"])
{
print("<a href='JavaScript: document.classes.deleteclass.value=0;document.classes.page2.value=0;document.classes.onpage.value=$i;document.classes.submit();' class='selectedpagenum' onMouseover=\"window.status='Go to page $i';return true;\" onMouseout=\"window.status='';return true;\">$i</a> \n");
}
else
{
print("<a href='JavaScript: document.classes.deleteclass.value=0;document.classes.page2.value=0;document.classes.onpage.value=$i;document.classes.submit();' class='pagenum' onMouseover=\"window.status='Go to page $i';return true;\" onMouseout=\"window.status='';return true;\">$i</a> \n");
}
}
print("\n</center>
<input type='hidden' name='deleteclass'>
<input type='hidden' name='selectclass'>
<input type='hidden' name='page2' value='$page2'>
<input type='hidden' name='onpage' value='$_POST[onpage]'>
<input type='hidden' name='logout'>
<input type='hidden' name='page' value='$page'>
</form>
</td>
</tr>
</table>
<table width='520' border=0 cellspacing=0 cellpadding=0 height=1>
<tr>
<td valign='top'>
<empty>
</td>
</tr>
</table>
");
?>