science-ation/register_participants_students.php

<?
 require("common.inc.php");
 
 //authenticate based on email address and registration number from the SESSION
 if(!$_SESSION['email'])
 {
 	header("Location: register_participants.php");
	exit;
 }
 if(! ($_SESSION['registration_number'] && $_SESSION['registration_id']))
 {
 	header("Location: register_participants.php");
	exit;
 }

 $q=mysql_query("SELECT registrations.id AS regid, students.id AS studentid, students.name FROM registrations,students ".
 	"WHERE students.email='".$_SESSION['email']."' ".
	"AND registrations.num='".$_SESSION['registration_number']."' ". 
	"AND registrations.id='".$_SESSION['registration_id']."' ".
	"AND students.registrations_id=registrations.id ".
	"AND registrations.year=".$config['FAIRYEAR']." ".
	"AND students.year=".$config['FAIRYEAR']);
echo mysql_error();

 if(mysql_num_rows($q)==0)
 {
 	header("Location: register_participants.php");
	exit;
 
 }
 $r=mysql_fetch_object($q);

 send_header("Participant Registration - Student Information");
 echo "<a href=\"register_participants_main.php\">&lt;&lt; ".i18n("Back to Participant Registration Summary")."</a><br />";
 echo "<br />";

 $q=mysql_query("SELECT * FROM students WHERE registrations_id='".$_SESSION['registration_id']."' AND year='".$config['FAIRYEAR']."'");

 if(mysql_num_rows($q)==0)
 {
 	//uhh oh, we didnt find any, this isnt possible! lets insert one using the logged in persons email address
	//although... this can never really happen, since the above queries only allow the page to view if the student
	//is found in the students table... soo... well, lets leave it here as a fallback anyways, just incase
	mysql_query("INSERT INTO students (registrations_id,email,year) VALUES ('".$_SESSION['registration_id']."','".mysql_escape_string($_SESSION['email'])."','".$config['FAIRYEAR']."')");
 }
 else if(mysql_num_rows($q)==1)
 {
 	$numstudents1="checked=\"checked\"";
 	$numstudents2="";

 }
 else if(mysql_num_rows($q)==2)
 {
 	$numstudents1="";
 	$numstudents2="checked=\"checked\"";

 }
 else
 {
	//this should never happen
	//we cant have more than two on a project
 	echo error(i18n("More than two students associated with this registration"));
	//FIXME: eventually provide a solution to fix this if it ever happens.. like say....
	// "click here" to remove all students and start again.. or something
 }

 echo "<form name=\"numstudentsform\" method=\"post\" action=\"register_participants_students.php\">";
 echo "<input $numstudents1 type=\"radio\" name=\"numstudents\" value=\"1\"> ".i18n("I worked on the project by myself")."<br />";
 echo "<input $numstudents2 type=\"radio\" name=\"numstudents\" value=\"2\"> ".i18n("I worked on the project with a partner")."<br />";
 echo "</form>";


 for($x=1;$x<=2;$x++)
 {
 	$studentinfo=mysql_fetch_object($q);
	echo "<div id=\"student$x\">\n";
	echo "<h3>Student Details</h3>";
	echo "</div>\n\n";
 }

 send_footer();
?>