mod/exercise/upload.php

   1 <?php  // $Id$
   2
   3     require_once("../../config.php");
   4     require_once("lib.php");
   5     require_once("locallib.php");
   6
   7     $id    = required_param('id', PARAM_INT);           // course module ID
   8     $title = optional_param('title', '', PARAM_CLEAN);
   9
  10     $timenow = time();
  11
  12     // get some esential stuff...
  13     if (! $cm = get_coursemodule_from_id('exercise', $id)) {
  14         error("Course Module ID was incorrect");
  15     }
  16
  17     if (! $course = get_record("course", "id", $cm->course)) {
  18         error("Course is misconfigured");
  19     }
  20
  21     if (! $exercise = get_record("exercise", "id", $cm->instance)) {
  22         error("Course module is incorrect");
  23     }
  24
  25     require_login($course->id, false, $cm);
  26
  27     $strexercises = get_string("modulenameplural", "exercise");
  28     $strexercise  = get_string("modulename", "exercise");
  29     $strupload      = get_string("upload");
  30
  31     print_header_simple(format_string($exercise->name)." : $strupload", "",
  32                  "<a href=\"index.php?id=$course->id\">$strexercises</a> ->
  33                   <a href=\"view.php?id=$cm->id\">".format_string($exercise->name,true)."</a> -> $strupload",
  34                   "", "", true);
  35
  36     // check that this is not a "rapid" second submission, caused by using the back button
  37     // only check if a student, teachers may want to submit a set of exercise variants
  38     if (isstudent($course->id)) {
  39         if ($submissions = exercise_get_user_submissions($exercise, $USER)) {
  40             // returns all submissions, newest on first
  41             foreach ($submissions as $submission) {
  42                 if ($submission->timecreated > $timenow - $CFG->maxeditingtime) {
  43                     // ignore this submission
  44                     redirect("view.php?id=$cm->id");
  45                     print_footer($course);
  46                     exit();
  47                 }
  48             }
  49         }
  50     }
  51
  52     // check existence of title
  53     if ($title == '') {
  54         notify(get_string("notitlegiven", "exercise") );
  55     }
  56     else {
  57         require_once($CFG->dirroot.'/lib/uploadlib.php');
  58         $um = new upload_manager('newfile',false,false,$course,false,$exercise->maxbytes);
  59         if ($um->preprocess_files()) {
  60             $newsubmission->exerciseid   = $exercise->id;
  61             if (isteacher($course->id)) {
  62                 // it's an exercise submission, flag it as such
  63                 $newsubmission->userid         = 0;
  64                 $newsubmission->isexercise = 1;  // it's a description of an exercise
  65             }
  66             else {
  67                 $newsubmission->userid = $USER->id;
  68             }
  69             $newsubmission->title  = $title;
  70             $newsubmission->timecreated  = $timenow;
  71             if ($timenow > $exercise->deadline) {
  72                 $newsubmission->late = 1;
  73             }
  74             if (!$newsubmission->id = insert_record("exercise_submissions", $newsubmission)) {
  75                 error("exercise upload: Failure to create new submission record!");
  76             }
  77             $dir = exercise_file_area_name($exercise, $newsubmission);
  78             if ($um->save_files($dir)) {
  79                 add_to_log($course->id, "exercise", "submit", "view.php?id=$cm->id", "$exercise->id");
  80                 print_heading(get_string("uploadsuccess", "assignment", $um->get_new_filename()) );
  81             }
  82             // upload manager will print errors.
  83             // clear resubmit flags
  84             if (!set_field("exercise_submissions", "resubmit", 0, "exerciseid", $exercise->id, "userid", $USER->id)) {
  85                 error("Exercise Upload: unable to reset resubmit flag");
  86             }
  87         }
  88         // upload manager will print errors.
  89     }
  90     print_continue("view.php?id=$cm->id");
  91
  92     print_footer($course);
  93
  94 ?>