course/teachers.php

   1 <?PHP // $Id$
   2       // Allows a teacher to edit teacher order and roles for a course
   3
   4         require("../config.php");
   5         require("lib.php");
   6
   7     require_variable($id);   // course id
   8
   9     if (! $course = get_record("course", "id", $id)) {
  10         error("Course ID was incorrect");
  11     }
  12
  13         require_login($course->id);
  14
  15     if (!isteacher($course->id)) {
  16         error("Only teachers can edit the course!");
  17     }
  18
  19
  20 /// If data submitted, then process and store.
  21
  22         if (match_referer() && isset($HTTP_POST_VARS)) {
  23
  24         $rank = array();
  25
  26         // Peel out all the data from variable names.
  27         foreach ($HTTP_POST_VARS as $key => $val) {
  28             if ($key <> "id") {
  29                 $type = substr($key,0,1);
  30                 $num  = substr($key,1);
  31                 $rank[$num][$type] = $val;
  32             }
  33         }
  34
  35         foreach ($rank as $num => $vals) {
  36             if (! $teacher = get_record_sql("SELECT * FROM user_teachers WHERE course='$course->id' and user='$num'")) {
  37                 error("No such teacher in course $course->shortname with user id $num");
  38             }
  39             $teacher->role = $vals[r];
  40             $teacher->authority = $vals[a];
  41             if (!update_record("user_teachers", $teacher)) {
  42                 error("Could not update teacher entry id = $teacher->id");
  43             }
  44         }
  45                 redirect("teachers.php?id=$course->id", get_string("changessaved"));
  46         }
  47
  48 /// Otherwise fill and print the form.
  49
  50         print_header("$course->shortname: $course->teachers", "$course->fullname",
  51                  "<A HREF=\"$CFG->wwwroot/course/view.php?id=$course->id\">$course->shortname</A>
  52                   -> $course->teachers");
  53
  54     if (!$teachers = get_course_teachers($course->id)) {
  55         error("No teachers found in this course!");
  56     }
  57
  58     print_heading($course->teachers);
  59
  60     $table->head  = array ("", get_string("name"), get_string("order"), get_string("role"));
  61     $table->align = array ("RIGHT", "LEFT", "CENTER", "CENTER");
  62     $table->size  = array ("35", "", "", "");
  63
  64     $option[0] = get_string("hide");
  65     for ($i=1; $i<=8; $i++) {
  66         $option[$i] = $i;
  67     }
  68
  69     echo "<FORM ACTION=teachers.php METHOD=post>";
  70     foreach ($teachers as $teacher) {
  71
  72         $picture = print_user_picture($teacher->id, $course->id, $teacher->picture, false, true);
  73
  74         $authority = choose_from_menu ($option, "a$teacher->id", $teacher->authority, "", "", "", true);
  75
  76         if (!$teacher->role) {
  77             $teacher->role = $course->teacher;
  78         }
  79
  80         $table->data[] = array ($picture, "$teacher->firstname $teacher->lastname", $authority,
  81                                 "<INPUT TYPE=text NAME=\"r$teacher->id\" VALUE=\"$teacher->role\" SIZE=30>");
  82     }
  83     print_table($table);
  84     echo "<INPUT TYPE=hidden NAME=id VALUE=\"$course->id\">";
  85     echo "<CENTER><BR><INPUT TYPE=submit VALUE=\"".get_string("savechanges")."\"> ";
  86     helpbutton("teachers", $course->teachers);
  87     echo "</CENTER>";
  88     echo "</FORM>";
  89
  90     print_footer($course);
  91
  92 ?>