admin/report/courseoverview/reportsgraph.php

   1 <?php // $Id$
   2
   3     require_once('../../../config.php');
   4     require_once($CFG->dirroot.'/lib/statslib.php');
   5     require_once($CFG->dirroot.'/lib/graphlib.php');
   6
   7     $report     = required_param('report', PARAM_INT);
   8     $time       = required_param('time', PARAM_INT);
   9     $numcourses = required_param('numcourses', PARAM_INT);
  10
  11     require_login();
  12
  13     require_capability('moodle/site:viewreports', get_context_instance(CONTEXT_SYSTEM));
  14
  15     stats_check_uptodate();
  16
  17     $param = stats_get_parameters($time,$report,SITEID,STATS_MODE_RANKED);
  18
  19     if (!empty($param->sql)) {
  20         $sql = $param->sql;
  21     } else {
  22         $sql = "SELECT courseid,".$param->fields." FROM ".$CFG->prefix.'stats_'.$param->table
  23             ." WHERE timeend >= $param->timeafter AND stattype = 'activity' AND roleid = 0"
  24             ." GROUP BY courseid "
  25             .$param->extras
  26             ." ORDER BY ".$param->orderby;
  27     }
  28
  29     $courses = get_records_sql($sql, 0, $numcourses);
  30
  31     if (empty($courses)) {
  32         print_error('statsnodata', "", $CFG->wwwroot.'/'.$CFG->admin.'/report/course/index.php');
  33     }
  34
  35
  36     $graph = new graph(750,400);
  37
  38     $graph->parameter['legend'] = 'outside-right';
  39     $graph->parameter['legend_size'] = 10;
  40     $graph->parameter['x_axis_angle'] = 90;
  41     $graph->parameter['title'] = false; // moodle will do a nicer job.
  42     $graph->y_tick_labels = null;
  43     $graph->offset_relation = null;
  44     if ($report != STATS_REPORT_ACTIVE_COURSES) {
  45         $graph->parameter['y_decimal_left'] = 2;
  46     }
  47
  48     foreach ($courses as $c) {
  49         $graph->x_data[] = get_field('course','shortname','id',$c->courseid);
  50         $graph->y_data['bar1'][] = $c->{$param->graphline};
  51     }
  52     $graph->y_order = array('bar1');
  53     $graph->y_format['bar1'] = array('colour' => 'blue','bar' => 'fill','legend' => $param->{$param->graphline});
  54
  55     $graph->draw_stack();
  56
  57 ?>