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