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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * The gradebook overview report
  19   *
  20   * @package   gradereport_overview
  21   * @copyright 2007 Nicolas Connault
  22   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  require_once '../../../config.php';
  26  require_once $CFG->libdir.'/gradelib.php';
  27  require_once $CFG->dirroot.'/grade/lib.php';
  28  require_once $CFG->dirroot.'/grade/report/overview/lib.php';
  29  
  30  $courseid = required_param('id', PARAM_INT);
  31  $userid   = optional_param('userid', $USER->id, PARAM_INT);
  32  
  33  $PAGE->set_url(new moodle_url('/grade/report/overview/index.php', array('id'=>$courseid)));
  34  
  35  /// basic access checks
  36  if (!$course = $DB->get_record('course', array('id' => $courseid))) {
  37      print_error('nocourseid');
  38  }
  39  require_login($course);
  40  
  41  $context = context_course::instance($course->id);
  42  $systemcontext = context_system::instance();
  43  require_capability('gradereport/overview:view', $context);
  44  
  45  if (empty($userid)) {
  46      require_capability('moodle/grade:viewall', $systemcontext);
  47  
  48  } else {
  49      if (!$DB->get_record('user', array('id'=>$userid, 'deleted'=>0)) or isguestuser($userid)) {
  50          print_error('invaliduserid');
  51      }
  52  }
  53  
  54  $access = false;
  55  if (has_capability('moodle/grade:viewall', $systemcontext)) {
  56      //ok - can view all course grades
  57      $access = true;
  58  
  59  } else if ($userid == $USER->id and has_capability('moodle/grade:viewall', $context)) {
  60      //ok - can view any own grades
  61      $access = true;
  62  
  63  } else if ($userid == $USER->id and has_capability('moodle/grade:view', $context) and $course->showgrades) {
  64      //ok - can view own course grades
  65      $access = true;
  66  
  67  } else if (has_capability('moodle/grade:viewall', context_user::instance($userid)) and $course->showgrades) {
  68      // ok - can view grades of this user- parent most probably
  69      $access = true;
  70  }
  71  
  72  if (!$access) {
  73      // no access to grades!
  74      print_error('nopermissiontoviewgrades', 'error',  $CFG->wwwroot.'/course/view.php?id='.$courseid);
  75  }
  76  
  77  /// return tracking object
  78  $gpr = new grade_plugin_return(array('type'=>'report', 'plugin'=>'overview', 'courseid'=>$course->id, 'userid'=>$userid));
  79  
  80  /// last selected report session tracking
  81  if (!isset($USER->grade_last_report)) {
  82      $USER->grade_last_report = array();
  83  }
  84  $USER->grade_last_report[$course->id] = 'overview';
  85  
  86  //first make sure we have proper final grades - this must be done before constructing of the grade tree
  87  grade_regrade_final_grades($courseid);
  88  
  89  if (has_capability('moodle/grade:viewall', $systemcontext)) { //Admins will see all student reports
  90      // please note this would be extremely slow if we wanted to implement this properly for all teachers
  91      $groupmode    = groups_get_course_groupmode($course);   // Groups are being used
  92      $currentgroup = groups_get_course_group($course, true);
  93  
  94      if (!$currentgroup) {      // To make some other functions work better later
  95          $currentgroup = NULL;
  96      }
  97  
  98      $isseparategroups = ($course->groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context));
  99  
 100      if ($isseparategroups and (!$currentgroup)) {
 101          // no separate group access, can view only self
 102          $userid = $USER->id;
 103          $user_selector = false;
 104      } else {
 105          $user_selector = true;
 106      }
 107  
 108      if (empty($userid)) {
 109          // Add tabs
 110          print_grade_page_head($courseid, 'report', 'overview');
 111  
 112          groups_print_course_menu($course, $gpr->get_return_url('index.php?id='.$courseid, array('userid'=>0)));
 113  
 114          if ($user_selector) {
 115              $renderer = $PAGE->get_renderer('gradereport_overview');
 116              echo $renderer->graded_users_selector('overview', $course, $userid, $currentgroup, false);
 117          }
 118          // do not list all users
 119  
 120      } else { // Only show one user's report
 121          $report = new grade_report_overview($userid, $gpr, $context);
 122          print_grade_page_head($courseid, 'report', 'overview', get_string('pluginname', 'gradereport_overview'). ' - '.fullname($report->user));
 123          groups_print_course_menu($course, $gpr->get_return_url('index.php?id='.$courseid, array('userid'=>0)));
 124  
 125          if ($user_selector) {
 126              $renderer = $PAGE->get_renderer('gradereport_overview');
 127              echo $renderer->graded_users_selector('overview', $course, $userid, $currentgroup, false);
 128          }
 129  
 130          if ($currentgroup and !groups_is_member($currentgroup, $userid)) {
 131              echo $OUTPUT->notification(get_string('groupusernotmember', 'error'));
 132          } else {
 133              if ($report->fill_table()) {
 134                  echo '<br />'.$report->print_table(true);
 135              }
 136          }
 137      }
 138  } else { //Non-admins will see just their own report
 139  
 140      // Create a report instance
 141      $report = new grade_report_overview($userid, $gpr, $context);
 142  
 143      // print the page
 144      print_grade_page_head($courseid, 'report', 'overview', get_string('pluginname', 'gradereport_overview'). ' - '.fullname($report->user));
 145  
 146      if ($report->fill_table()) {
 147          echo '<br />'.$report->print_table(true);
 148      }
 149  }
 150  
 151  $event = \gradereport_overview\event\grade_report_viewed::create(
 152      array(
 153          'context' => $context,
 154          'courseid' => $courseid,
 155          'relateduserid' => $userid,
 156      )
 157  );
 158  $event->trigger();
 159  
 160  echo $OUTPUT->footer();
 161  
 162