added exams

[banana.git] / admin / sessionoverview.php

<?php
  require 'include/head.inc';
  require 'include/db.inc';
  require 'include/session.inc';
  require 'include/common.inc';

  if ( isset($SESSIONS_actual) ) {
    $showsession = $SESSIONS_actual;
  }
  else if ( isset($SESSIONS_last) ) {
    block("red", "no next session");
    $showsession = $SESSIONS_last;
  }
  else {
    block("red", "no sessions defined");
    exit;
  }

  if( isset($_GET['sessionselected']) ) { $showsession = trim($_GET['sessionselected']); }

  if( isset($_GET['sessionid']) && isset($_GET['mnumber']) && isset($_GET['tstamp']) && isset($_GET['editsub']) ) {
    $up_sessionid = trim($_GET['sessionid']);
    $up_mnumber = trim($_GET['mnumber']);
    $up_tstamp = trim($_GET['tstamp']);
    $up_editsub = trim($_GET['editsub']);

    if( $up_editsub == "" ) { $up_manydone = 0; }
    else{ $up_manydone = count(explode(",",$up_editsub)); }

    if( $db->query("SELECT COUNT(*) FROM workdone WHERE mnumber=$up_mnumber AND session=$up_sessionid AND tstamp=$up_tstamp")->fetch(PDO::FETCH_NUM)[0] == 0 ) {
      $db->query("DELETE FROM workdone WHERE mnumber=$up_mnumber AND session=$up_sessionid");
      $db->query("INSERT INTO workdone (session,mnumber,thisdone,manydone,tstamp) values ($up_sessionid,$up_mnumber,\"$up_editsub\",$up_manydone,$up_tstamp)");
      block("lightgreen", "modified submit");
    }
  }

  print "<form action='sessionoverview.php'>";
  print "<select name='sessionselected' onchange='this.form.submit()'>";
  foreach($SESSIONS as $session) {
    $note = "";
    if( isset($SESSIONS_actual) && $session['id'] == $SESSIONS_actual ) { $note = "(next)"; }
    if( isset($SESSIONS_last) && $session['id'] == $SESSIONS_last ) { $note = "(last)"; }
    if( $showsession != $session['id'] ) {
      print "<option value=" . $session['id'] . ">" . $session['timestr'] . " " . $note . "</option>";
    }
    else {
      print "<option value=" . $session['id'] . " selected='selected'>" . $session['timestr'] . " " . $note . "</option>";
    }
  } 
  print "</select>";
  print "</form>";

  block("black", "summary for session " . $SESSIONS[$showsession]['timestr'] . " (" . $SESSIONS[$showsession]['examples'] . ")");

  $result = $db->query("SELECT firstname, lastname, mnumber, blackboard FROM students ORDER BY LOWER(lastname)");

  print "<table>";
  print "<td><b>First name&nbsp;</b></td><td><b>Last name&nbsp;</b></td><td><b>Matr.nummer&nbsp;</b></td><td><b>Examples&nbsp;</b></td>";

  if( isset($SESSIONS_actual) && $showsession == $SESSIONS_actual ) {
    print "<td><b>Blackboard&nbsp;</b></td>";
  }
  else {
    print "<td><b>Modify&nbsp;</b></td>";
  }

  while ($student = $result->fetch(PDO::FETCH_ASSOC)) {
    $result2 = $db->query("SELECT manydone, thisdone FROM workdone WHERE mnumber=" . $student['mnumber'] . " AND session=" . $showsession)->fetch(PDO::FETCH_NUM);

    $exdone = $result2[0];
    if ($exdone == "") { $exdone=0; }

    $thisdone = $result2[1];

    print "<tr>";
    print "<td>" . $student['firstname'] . "</td>";
    print "<td>" . $student['lastname'] . "</td>";
    print "<td>" . $student['mnumber'] . "</td>";
    print "<td>" . $thisdone . " (" . $exdone . "/" . $SESSIONS[$showsession]['nexamples'] . ")</td>";

    if( (! isset($SESSIONS_actual)) || $showsession != $SESSIONS_actual ) {
      print "<td><form style='margin: 0; padding: 0' action='sessionoverview.php'>";
      if( isset($_GET['sessionselected']) ) { print "<input type='hidden' name='sessionselected' value='" . $_GET['sessionselected'] . "' />"; } 
      print "<input type='hidden' name='sessionid' value='" . $showsession . "' />";
      print "<input type='hidden' name='mnumber' value='" . $student['mnumber'] . "' />";
      print "<input type='hidden' name='tstamp' value='" . time() . "' />";
      print "<input size='10' name='editsub' type='text' value='" . $thisdone . "'>";
      print "</form></td>";
    }
    else {
      print "<td>" . $student['blackboard'] . "</td>";
    }

    print "</tr>";
  }
  print "</table>";
?>