mod/assignment/type/uploadsingle/assignment.class.php

   1 <?php // $Id$
   2
   3 /**
   4  * Extend the base assignment class for assignments where you upload a single file
   5  *
   6  */
   7 class assignment_uploadsingle extends assignment_base {
   8
   9
  10     function print_student_answer($userid, $return=false){
  11            global $CFG, $USER;
  12
  13         $filearea = $this->file_area_name($userid);
  14
  15         $output = '';
  16
  17         if ($basedir = $this->file_area($userid)) {
  18             if ($files = get_directory_list($basedir)) {
  19                 require_once($CFG->libdir.'/filelib.php');
  20                 foreach ($files as $key => $file) {
  21
  22                     $icon = mimeinfo('icon', $file);
  23                     $ffurl = get_file_url("$filearea/$file");
  24
  25                     //died right here
  26                     //require_once($ffurl);
  27                     $output = '<img src="'.$CFG->pixpath.'/f/'.$icon.'" class="icon" alt="'.$icon.'" />'.
  28                             '<a href="'.$ffurl.'" >'.$file.'</a><br />';
  29                 }
  30             }
  31         }
  32
  33         $output = '<div class="files">'.$output.'</div>';
  34         return $output;
  35     }
  36
  37     function assignment_uploadsingle($cmid='staticonly', $assignment=NULL, $cm=NULL, $course=NULL) {
  38         parent::assignment_base($cmid, $assignment, $cm, $course);
  39         $this->type = 'uploadsingle';
  40     }
  41
  42     function view() {
  43
  44         global $USER;
  45
  46         $context = get_context_instance(CONTEXT_MODULE,$this->cm->id);
  47         require_capability('mod/assignment:view', $context);
  48
  49         add_to_log($this->course->id, "assignment", "view", "view.php?id={$this->cm->id}", $this->assignment->id, $this->cm->id);
  50
  51         $this->view_header();
  52
  53         $this->view_intro();
  54
  55         $this->view_dates();
  56
  57         $filecount = $this->count_user_files($USER->id);
  58
  59         if ($submission = $this->get_submission()) {
  60             if ($submission->timemarked) {
  61                 $this->view_feedback();
  62             }
  63             if ($filecount) {
  64                 print_simple_box($this->print_user_files($USER->id, true), 'center');
  65             }
  66         }
  67
  68         if (has_capability('mod/assignment:submit', $context)  && $this->isopen() && (!$filecount || $this->assignment->resubmit || !$submission->timemarked)) {
  69             $this->view_upload_form();
  70         }
  71
  72         $this->view_footer();
  73     }
  74
  75
  76     function view_upload_form() {
  77         global $CFG;
  78         $struploadafile = get_string("uploadafile");
  79
  80         $maxbytes = $this->assignment->maxbytes == 0 ? $this->course->maxbytes : $this->assignment->maxbytes;
  81         $strmaxsize = get_string('maxsize', '', display_size($maxbytes));
  82
  83         echo '<div style="text-align:center">';
  84         echo '<form enctype="multipart/form-data" method="post" '.
  85              "action=\"$CFG->wwwroot/mod/assignment/upload.php\">";
  86         echo '<fieldset class="invisiblefieldset">';
  87         echo "<p>$struploadafile ($strmaxsize)</p>";
  88         echo '<input type="hidden" name="id" value="'.$this->cm->id.'" />';
  89         require_once($CFG->libdir.'/uploadlib.php');
  90         upload_print_form_fragment(1,array('newfile'),false,null,0,$this->assignment->maxbytes,false);
  91         echo '<input type="submit" name="save" value="'.get_string('uploadthisfile').'" />';
  92         echo '</fieldset>';
  93         echo '</form>';
  94         echo '</div>';
  95     }
  96
  97
  98     function upload() {
  99
 100         global $CFG, $USER;
 101
 102         require_capability('mod/assignment:submit', get_context_instance(CONTEXT_MODULE, $this->cm->id));
 103
 104         $this->view_header(get_string('upload'));
 105
 106         $filecount = $this->count_user_files($USER->id);
 107         $submission = $this->get_submission($USER->id);
 108         if ($this->isopen() && (!$filecount || $this->assignment->resubmit || !$submission->timemarked)) {
 109             if ($submission = $this->get_submission($USER->id)) {
 110                 //TODO: change later to ">= 0", to prevent resubmission when graded 0
 111                 if (($submission->grade > 0) and !$this->assignment->resubmit) {
 112                     notify(get_string('alreadygraded', 'assignment'));
 113                 }
 114             }
 115
 116             $dir = $this->file_area_name($USER->id);
 117
 118             require_once($CFG->dirroot.'/lib/uploadlib.php');
 119             $um = new upload_manager('newfile',true,false,$this->course,false,$this->assignment->maxbytes);
 120             if ($um->process_file_uploads($dir)) {
 121                 $newfile_name = $um->get_new_filename();
 122                 if ($submission) {
 123                     $submission->timemodified = time();
 124                     $submission->numfiles     = 1;
 125                     $submission->submissioncomment = addslashes($submission->submissioncomment);
 126                     unset($submission->data1);  // Don't need to update this.
 127                     unset($submission->data2);  // Don't need to update this.
 128                     if (update_record("assignment_submissions", $submission)) {
 129                         add_to_log($this->course->id, 'assignment', 'upload',
 130                                 'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
 131                         $submission = $this->get_submission($USER->id);
 132                         $this->update_grade($submission);
 133                         $this->email_teachers($submission);
 134                         print_heading(get_string('uploadedfile'));
 135                     } else {
 136                         notify(get_string("uploadfailnoupdate", "assignment"));
 137                     }
 138                 } else {
 139                     $newsubmission = $this->prepare_new_submission($USER->id);
 140                     $newsubmission->timemodified = time();
 141                     $newsubmission->numfiles = 1;
 142                     if (insert_record('assignment_submissions', $newsubmission)) {
 143                         add_to_log($this->course->id, 'assignment', 'upload',
 144                                 'view.php?a='.$this->assignment->id, $this->assignment->id, $this->cm->id);
 145                         $submission = $this->get_submission($USER->id);
 146                         $this->update_grade($submission);
 147                         $this->email_teachers($newsubmission);
 148                         print_heading(get_string('uploadedfile'));
 149                     } else {
 150                         notify(get_string("uploadnotregistered", "assignment", $newfile_name) );
 151                     }
 152                 }
 153             }
 154         } else {
 155             notify(get_string("uploaderror", "assignment")); //submitting not allowed!
 156         }
 157
 158         print_continue('view.php?id='.$this->cm->id);
 159
 160         $this->view_footer();
 161     }
 162
 163     function setup_elements(&$mform) {
 164         global $CFG, $COURSE;
 165
 166         $ynoptions = array( 0 => get_string('no'), 1 => get_string('yes'));
 167
 168         $mform->addElement('select', 'resubmit', get_string("allowresubmit", "assignment"), $ynoptions);
 169         $mform->setHelpButton('resubmit', array('resubmit', get_string('allowresubmit', 'assignment'), 'assignment'));
 170         $mform->setDefault('resubmit', 0);
 171
 172         $mform->addElement('select', 'emailteachers', get_string("emailteachers", "assignment"), $ynoptions);
 173         $mform->setHelpButton('emailteachers', array('emailteachers', get_string('emailteachers', 'assignment'), 'assignment'));
 174         $mform->setDefault('emailteachers', 0);
 175
 176         $choices = get_max_upload_sizes($CFG->maxbytes, $COURSE->maxbytes);
 177         $choices[0] = get_string('courseuploadlimit') . ' ('.display_size($COURSE->maxbytes).')';
 178         $mform->addElement('select', 'maxbytes', get_string('maximumsize', 'assignment'), $choices);
 179         $mform->setDefault('maxbytes', $CFG->assignment_maxbytes);
 180
 181     }
 182
 183 }
 184
 185 ?>