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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 = optional_param('id', SITEID, 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, 'userid' => $userid)));
  34  
  35  if (!$course = $DB->get_record('course', array('id' => $courseid))) {
  36      print_error('nocourseid');
  37  }
  38  require_login(null, false);
  39  $PAGE->set_course($course);
  40  
  41  $context = context_course::instance($course->id);
  42  $systemcontext = context_system::instance();
  43  $personalcontext = null;
  44  
  45  // If we are accessing the page from a site context then ignore this check.
  46  if ($courseid != SITEID) {
  47      require_capability('gradereport/overview:view', $context);
  48  }
  49  
  50  if (empty($userid)) {
  51      require_capability('moodle/grade:viewall', $context);
  52  
  53  } else {
  54      if (!$DB->get_record('user', array('id'=>$userid, 'deleted'=>0)) or isguestuser($userid)) {
  55          print_error('invaliduserid');
  56      }
  57      $personalcontext = context_user::instance($userid);
  58  }
  59  
  60  if (isset($personalcontext) && $courseid == SITEID) {
  61      $PAGE->set_context($personalcontext);
  62  } else {
  63      $PAGE->set_context($context);
  64  }
  65  if ($userid == $USER->id) {
  66      $settings = $PAGE->settingsnav->find('mygrades', null);
  67      $settings->make_active();
  68  } else if ($courseid != SITEID && $userid) {
  69      // Show some other navbar thing.
  70      $user = $DB->get_record('user', array('id' => $userid), '*', MUST_EXIST);
  71      $PAGE->navigation->extend_for_user($user);
  72  }
  73  
  74  $access = false;
  75  if (has_capability('moodle/grade:viewall', $systemcontext)) {
  76      // Ok - can view all course grades.
  77      $access = true;
  78  
  79  } else if (has_capability('moodle/grade:viewall', $context)) {
  80      // Ok - can view any grades in context.
  81      $access = true;
  82  
  83  } else if ($userid == $USER->id and ((has_capability('moodle/grade:view', $context) and $course->showgrades)
  84          || $courseid == SITEID)) {
  85      // Ok - can view own course grades.
  86      $access = true;
  87  
  88  } else if (has_capability('moodle/grade:viewall', $personalcontext) and $course->showgrades) {
  89      // Ok - can view grades of this user - parent most probably.
  90      $access = true;
  91  } else if (has_capability('moodle/user:viewuseractivitiesreport', $personalcontext) and $course->showgrades) {
  92      // Ok - can view grades of this user - parent most probably.
  93      $access = true;
  94  }
  95  
  96  if (!$access) {
  97      // no access to grades!
  98      print_error('nopermissiontoviewgrades', 'error',  $CFG->wwwroot.'/course/view.php?id='.$courseid);
  99  }
 100  
 101  /// return tracking object
 102  $gpr = new grade_plugin_return(array('type'=>'report', 'plugin'=>'overview', 'courseid'=>$course->id, 'userid'=>$userid));
 103  
 104  /// last selected report session tracking
 105  if (!isset($USER->grade_last_report)) {
 106      $USER->grade_last_report = array();
 107  }
 108  $USER->grade_last_report[$course->id] = 'overview';
 109  
 110  // First make sure we have proper final grades.
 111  grade_regrade_final_grades_if_required($course);
 112  
 113  if (has_capability('moodle/grade:viewall', $context) && $courseid != SITEID) {
 114      // Please note this would be extremely slow if we wanted to implement this properly for all teachers.
 115      $groupmode    = groups_get_course_groupmode($course);   // Groups are being used
 116      $currentgroup = groups_get_course_group($course, true);
 117  
 118      if (!$currentgroup) {      // To make some other functions work better later
 119          $currentgroup = NULL;
 120      }
 121  
 122      $isseparategroups = ($course->groupmode == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context));
 123  
 124      if ($isseparategroups and (!$currentgroup)) {
 125          // no separate group access, can view only self
 126          $userid = $USER->id;
 127          $user_selector = false;
 128      } else {
 129          $user_selector = true;
 130      }
 131  
 132      if (empty($userid)) {
 133          // Add tabs
 134          print_grade_page_head($courseid, 'report', 'overview');
 135  
 136          groups_print_course_menu($course, $gpr->get_return_url('index.php?id='.$courseid, array('userid'=>0)));
 137  
 138          if ($user_selector) {
 139              $renderer = $PAGE->get_renderer('gradereport_overview');
 140              echo $renderer->graded_users_selector('overview', $course, $userid, $currentgroup, false);
 141          }
 142          // do not list all users
 143  
 144      } else { // Only show one user's report
 145          $report = new grade_report_overview($userid, $gpr, $context);
 146          print_grade_page_head($courseid, 'report', 'overview', get_string('pluginname', 'gradereport_overview') .
 147                  ' - ' . fullname($report->user), false, false, true, null, null, $report->user);
 148          groups_print_course_menu($course, $gpr->get_return_url('index.php?id='.$courseid, array('userid'=>0)));
 149  
 150          if ($user_selector) {
 151              $renderer = $PAGE->get_renderer('gradereport_overview');
 152              echo $renderer->graded_users_selector('overview', $course, $userid, $currentgroup, false);
 153          }
 154  
 155          if ($currentgroup and !groups_is_member($currentgroup, $userid)) {
 156              echo $OUTPUT->notification(get_string('groupusernotmember', 'error'));
 157          } else {
 158              if ($report->fill_table()) {
 159                  echo '<br />'.$report->print_table(true);
 160              }
 161          }
 162      }
 163  } else { // Non-admins and users viewing from the site context can just see their own report.
 164  
 165      // Create a report instance
 166      $report = new grade_report_overview($userid, $gpr, $context);
 167  
 168      if (!empty($report->studentcourseids)) {
 169          // If the course id matches the site id then we don't have a course context to work with.
 170          // Display a standard page.
 171          if ($courseid == SITEID) {
 172              $PAGE->set_pagelayout('standard');
 173              $header = get_string('grades', 'grades') . ' - ' . fullname($report->user);
 174              $PAGE->set_title($header);
 175              $PAGE->set_heading(fullname($report->user));
 176  
 177              if ($USER->id != $report->user->id) {
 178                  $PAGE->navigation->extend_for_user($report->user);
 179                  if ($node = $PAGE->settingsnav->get('userviewingsettings'.$report->user->id)) {
 180                      $node->forceopen = true;
 181                  }
 182              } else if ($node = $PAGE->settingsnav->get('usercurrentsettings', navigation_node::TYPE_CONTAINER)) {
 183                  $node->forceopen = true;
 184              }
 185  
 186              echo $OUTPUT->header();
 187              if ($report->fill_table(true, true)) {
 188                  echo html_writer::tag('h3', get_string('coursesiamtaking', 'grades'));
 189                  echo '<br />' . $report->print_table(true);
 190              }
 191          } else { // We have a course context. We must be navigating from the gradebook.
 192              print_grade_page_head($courseid, 'report', 'overview', get_string('pluginname', 'gradereport_overview')
 193                      . ' - ' . fullname($report->user));
 194              if ($report->fill_table()) {
 195                  echo '<br />' . $report->print_table(true);
 196              }
 197          }
 198      } else {
 199          $PAGE->set_pagelayout('standard');
 200          $header = get_string('grades', 'grades') . ' - ' . fullname($report->user);
 201          $PAGE->set_title($header);
 202          $PAGE->set_heading(fullname($report->user));
 203          echo $OUTPUT->header();
 204      }
 205  
 206      if (count($report->teachercourses)) {
 207          echo html_writer::tag('h3', get_string('coursesiamteaching', 'grades'));
 208          $report->print_teacher_table();
 209      }
 210  
 211      if (empty($report->studentcourseids) && empty($report->teachercourses)) {
 212          // We have no report to show the user. Let them know something.
 213          echo $OUTPUT->notification(get_string('noreports', 'grades'), 'notifymessage');
 214      }
 215  }
 216  
 217  $event = \gradereport_overview\event\grade_report_viewed::create(
 218      array(
 219          'context' => $context,
 220          'courseid' => $courseid,
 221          'relateduserid' => $userid,
 222      )
 223  );
 224  $event->trigger();
 225  
 226  echo $OUTPUT->footer();
 227  
 228