grade/edit/gradedisplay/index.php

   1 <?php // $Id$
   2       // Allows a creator to edit custom scales, and also display help about scales
   3
   4 require_once '../../../config.php';
   5 require_once $CFG->dirroot.'/grade/lib.php';
   6 require_once $CFG->libdir.'/gradelib.php';
   7 require_once $CFG->dirroot.'/grade/report/lib.php';
   8 require_once 'gradedisplay_form.php';
   9
  10 $courseid = optional_param('id', 0, PARAM_INT);
  11 $action   = optional_param('action', '', PARAM_ALPHA);
  12
  13 /// Make sure they can even access this course
  14 if ($courseid) {
  15     if (!$course = get_record('course', 'id', $courseid)) {
  16         print_error('nocourseid');
  17     }
  18     require_login($course);
  19     $context = get_context_instance(CONTEXT_COURSE, $course->id);
  20     require_capability('moodle/course:managescales', $context);
  21 } else {
  22     require_once $CFG->libdir.'/adminlib.php';
  23     admin_externalpage_setup('scales');
  24 }
  25
  26 $straddelement = get_string('addelement', 'grades');
  27 switch ($action) {
  28     case $straddelement:
  29         // Insert a record in the grade_letters table, with 0 as lower boundary and  ' - ' as letter
  30         $record = new stdClass();
  31         $record->contextid = $context->id;
  32         $record->letter = '-';
  33         $record->lowerboundary = 0;
  34         insert_record('grade_letters', $record);
  35         break;
  36     default:
  37         break;
  38 }
  39
  40 $course_has_letters = get_field('grade_letters', 'contextid', 'contextid', $context->id);
  41
  42 /// return tracking object
  43 $gpr = new grade_plugin_return(array('type'=>'edit', 'plugin'=>'gradedisplay', 'courseid'=>$courseid));
  44 $returnurl = $gpr->get_return_url($CFG->wwwroot.'/grade/edit/gradedisplay/index.php?id='.$course->id);
  45
  46 $mform = new edit_grade_display_form(null, array('gpr'=>$gpr, 'course_has_letters' => $course_has_letters, 'action' => $action));
  47
  48 if ($mform->is_cancelled()) {
  49     redirect($returnurl);
  50
  51 // form processing
  52 } else if ($data = $mform->get_data(false)) {
  53     // Delete existing grade_letters for this contextid, whether we add, update or set the grade letters to defaults
  54     if ($course_has_letters) {
  55         delete_records('grade_letters', 'contextid', $context->id);
  56     }
  57
  58     // Update course item's gradedisplay type
  59     if (isset($data->gradedisplaytype)) {
  60         set_field('grade_items', 'display', $data->gradedisplaytype, 'courseid', $courseid, 'itemtype', 'course');
  61     }
  62
  63     // If override is present, add/update entries in grade_letters table
  64     if (!empty($data->override)) {
  65         $records = array();
  66
  67         // Loop through grade letters and boundaries
  68         foreach ($data as $key => $variable) {
  69             preg_match('/[gradeletter|gradeboundary]([0-9]{1,2})/', $key, $matches);
  70             $index = null;
  71             if (isset($matches[1])) {
  72                 $index = $matches[1];
  73             }
  74
  75             if (strstr($key, 'gradeletter')) {
  76                 $records[$index] = new stdClass();
  77                 $records[$index]->letter = $variable;
  78             } elseif (strstr($key, 'gradeboundary')) {
  79                 if (!empty($records[$index])) {
  80                     $records[$index]->lowerboundary = $variable;
  81                 }
  82             }
  83         }
  84
  85         foreach ($records as $key => $record) {
  86             // Do not insert if either value is empty or set to "unused"
  87             $values_set = isset($record->letter) && isset($record->lowerboundary);
  88
  89             if ($values_set && strlen($record->letter) > 0 && strlen($record->lowerboundary) > 0) {
  90                 $record->contextid = $context->id;
  91                 if ($id = insert_record('grade_letters', $record)) {
  92                     $record = new stdClass();
  93                 } else {
  94                     debugging('Error inserting grade_letters record!');
  95                     die();
  96                 }
  97             }
  98         }
  99     } else {
 100
 101     }
 102
 103     redirect($returnurl, get_string('coursegradedisplayupdated', 'grades'));
 104 }
 105
 106 $strgrades = get_string('grades');
 107 $pagename = get_string('gradedisplay');
 108
 109 $navigation = grade_build_nav(__FILE__, $pagename, array('courseid' => $courseid));
 110
 111 $strname           = get_string('name');
 112 $strdelete         = get_string('delete');
 113 $stredit           = get_string('edit');
 114 $strused           = get_string('used');
 115 $stredit           = get_string('edit');
 116
 117 switch ($action) {
 118     case 'delete':
 119         if (!confirm_sesskey()) {
 120             break;
 121         }
 122         $scaleid = required_param('scaleid', PARAM_INT);
 123         if (!$scale = grade_scale::fetch(array('id'=>$scaleid))) {
 124             break;
 125         }
 126
 127         if (empty($scale->courseid)) {
 128             require_capability('moodle/course:managescales', get_context_instance(CONTEXT_SYSTEM));
 129         } else if ($scale->courseid != $courseid) {
 130             error('Incorrect courseid!');
 131         }
 132
 133         if (!$scale->can_delete()) {
 134             break;
 135         }
 136
 137         //TODO: add confirmation
 138         $scale->delete();
 139         break;
 140 }
 141
 142 if ($courseid) {
 143     /// Print header
 144     print_header_simple($strgrades.': '.$pagename, ': '.$strgrades, $navigation, '', '', true, '', navmenu($course));
 145     /// Print the plugin selector at the top
 146     print_grade_plugin_selector($courseid, 'edit', 'scale');
 147
 148 } else {
 149     admin_externalpage_print_header();
 150 }
 151
 152 print_simple_box_start("center");
 153 $mform->display();
 154 print_simple_box_end();
 155
 156 if ($courseid) {
 157     print_footer($course);
 158 } else {
 159     admin_externalpage_print_footer();
 160 }
 161
 162
 163 ?>
 164