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Differences Between: [Versions 39 and 311] [Versions 39 and 400] [Versions 39 and 401] [Versions 39 and 402] [Versions 39 and 403]

   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   * Reports implementation
  19   *
  20   * @package    report
  21   * @subpackage stats
  22   * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  defined('MOODLE_INTERNAL') || die;
  27  
  28  require_once (__DIR__.'/lib.php');
  29  require_once($CFG->dirroot.'/lib/statslib.php');
  30  
  31  function report_stats_mode_menu($course, $mode, $time, $url) {
  32      global $CFG, $OUTPUT;
  33      /*
  34      $reportoptions = stats_get_report_options($course->id, $mode);
  35      $timeoptions = report_stats_timeoptions($mode);
  36      if (empty($timeoptions)) {
  37          print_error('nostatstodisplay', '', $CFG->wwwroot.'/course/view.php?id='.$course->id);
  38      }
  39      */
  40  
  41      $options = array();
  42      $options[STATS_MODE_GENERAL] = get_string('statsmodegeneral');
  43      $options[STATS_MODE_DETAILED] = get_string('statsmodedetailed');
  44      if (has_capability('report/stats:view', context_system::instance())) {
  45          $options[STATS_MODE_RANKED] = get_string('reports');
  46      }
  47      $popupurl = $url."?course=$course->id&time=$time";
  48      $select = new single_select(new moodle_url($popupurl), 'mode', $options, $mode, null);
  49      $select->set_label(get_string('reports'), array('class' => 'accesshide'));
  50      $select->formid = 'switchmode';
  51      return $OUTPUT->render($select);
  52  }
  53  
  54  function report_stats_timeoptions($mode) {
  55      global $CFG, $DB;
  56  
  57      if ($mode == STATS_MODE_DETAILED) {
  58          $earliestday = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_user_daily}');
  59          $earliestweek = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_user_weekly}');
  60          $earliestmonth = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_user_monthly}');
  61      } else {
  62          $earliestday = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_daily}');
  63          $earliestweek = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_weekly}');
  64          $earliestmonth = $DB->get_field_sql('SELECT MIN(timeend) FROM {stats_monthly}');
  65      }
  66  
  67  
  68      if (empty($earliestday)) $earliestday = time();
  69      if (empty($earliestweek)) $earliestweek = time();
  70      if (empty($earliestmonth)) $earliestmonth = time();
  71  
  72      $now = stats_get_base_daily();
  73      $lastweekend = stats_get_base_weekly();
  74      $lastmonthend = stats_get_base_monthly();
  75  
  76      return stats_get_time_options($now,$lastweekend,$lastmonthend,$earliestday,$earliestweek,$earliestmonth);
  77  }
  78  
  79  function report_stats_report($course, $report, $mode, $user, $roleid, $time) {
  80      global $CFG, $DB, $OUTPUT;
  81  
  82      if ($user) {
  83          $userid = $user->id;
  84      } else {
  85          $userid = 0;
  86      }
  87  
  88      $fields = 'c.id,c.shortname,c.visible';
  89      $ccselect = ', ' . context_helper::get_preload_record_columns_sql('ctx');
  90      $ccjoin = "LEFT JOIN {context} ctx ON (ctx.instanceid = c.id AND ctx.contextlevel = :contextlevel)";
  91      $sortstatement = 'ORDER BY c.shortname';
  92  
  93      $sql = "SELECT $fields $ccselect FROM {course} c $ccjoin $sortstatement";
  94  
  95      $params = array();
  96      $params['contextlevel'] = CONTEXT_COURSE;
  97  
  98      $courses = $DB->get_recordset_sql($sql, $params);
  99  
 100      $courseoptions = array();
 101  
 102      foreach ($courses as $c) {
 103          context_helper::preload_from_record($c);
 104          $context = context_course::instance($c->id);
 105  
 106          if (has_capability('report/stats:view', $context)) {
 107              if (isset($c->visible) && $c->visible <= 0) {
 108                  // For hidden courses, require visibility check.
 109                  if (!has_capability('moodle/course:viewhiddencourses', $context)) {
 110                      continue;
 111                  }
 112              }
 113              $courseoptions[$c->id] = format_string($c->shortname, true, array('context' => $context));
 114          }
 115      }
 116  
 117      $courses->close();
 118  
 119      $reportoptions = stats_get_report_options($course->id, $mode);
 120      $timeoptions = report_stats_timeoptions($mode);
 121      if (empty($timeoptions)) {
 122          print_error('nostatstodisplay', '', $CFG->wwwroot.'/course/view.php?id='.$course->id);
 123      }
 124  
 125      $users = array();
 126      $table = new html_table();
 127      $table->width = 'auto';
 128  
 129      if ($mode == STATS_MODE_DETAILED) {
 130          $param = stats_get_parameters($time, null, $course->id, $mode, $roleid); // We only care about the table and the time string (if we have time).
 131  
 132          list($sort, $moreparams) = users_order_by_sql('u');
 133          $moreparams['courseid'] = $course->id;
 134          $fields = user_picture::fields('u', array('idnumber'));
 135          $sql = "SELECT DISTINCT $fields
 136                    FROM {stats_user_{$param->table}} s
 137                    JOIN {user} u ON u.id = s.userid
 138                   WHERE courseid = :courseid";
 139          if (!empty($param->stattype)) {
 140              $sql .= " AND stattype = :stattype";
 141              $moreparams['stattype'] = $param->stattype;
 142          }
 143          if (!empty($time)) {
 144              $sql .= " AND timeend >= :timeafter";
 145              $moreparams['timeafter'] = $param->timeafter;
 146          }
 147          $sql .= " ORDER BY {$sort}";
 148  
 149          if (!$us = $DB->get_records_sql($sql, array_merge($param->params, $moreparams))) {
 150              print_error('nousers');
 151          }
 152          foreach ($us as $u) {
 153              $users[$u->id] = fullname($u, true);
 154          }
 155  
 156          $table->align = array('left','left','left','left','left','left','left','left');
 157          $table->data[] = array(html_writer::label(get_string('course'), 'menucourse'), html_writer::select($courseoptions, 'course', $course->id, false),
 158                                 html_writer::label(get_string('users'), 'menuuserid'), html_writer::select($users, 'userid', $userid, false),
 159                                 html_writer::label(get_string('statsreporttype'), 'menureport'), html_writer::select($reportoptions, 'report', ($report == 5) ? $report.$roleid : $report, false),
 160                                 html_writer::label(get_string('statstimeperiod'), 'menutime'), html_writer::select($timeoptions, 'time', $time, false),
 161                                 '<input type="submit" class="btn btn-secondary" value="'.get_string('view').'" />');
 162      } else if ($mode == STATS_MODE_RANKED) {
 163          $table->align = array('left','left','left','left','left','left');
 164          $table->data[] = array(html_writer::label(get_string('statsreporttype'), 'menureport'), html_writer::select($reportoptions, 'report', ($report == 5) ? $report.$roleid : $report, false),
 165                                 html_writer::label(get_string('statstimeperiod'), 'menutime'), html_writer::select($timeoptions, 'time', $time, false),
 166                                 '<input type="submit" class="btn btn-secondary" value="'.get_string('view').'" />');
 167      } else if ($mode == STATS_MODE_GENERAL) {
 168          $table->align = array('left','left','left','left','left','left','left');
 169          $table->data[] = array(html_writer::label(get_string('course'), 'menucourse'), html_writer::select($courseoptions, 'course', $course->id, false),
 170                                 html_writer::label(get_string('statsreporttype'), 'menureport'), html_writer::select($reportoptions, 'report', ($report == 5) ? $report.$roleid : $report, false),
 171                                 html_writer::label(get_string('statstimeperiod'), 'menutime'), html_writer::select($timeoptions, 'time', $time, false),
 172                                 '<input type="submit" class="btn btn-secondary" value="'.get_string('view').'" />');
 173      }
 174  
 175      echo '<form action="index.php" method="post">'."\n"
 176          .'<div>'."\n"
 177          .'<input type="hidden" name="mode" value="'.$mode.'" />'."\n";
 178  
 179      echo html_writer::table($table);
 180  
 181      echo '</div>';
 182      echo '</form>';
 183  
 184      // Display the report if:
 185      //  - A report has been selected.
 186      //  - A time frame has been provided
 187      //  - If the mode is not detailed OR a valid user has been selected.
 188      if (!empty($report) && !empty($time) && ($mode !== STATS_MODE_DETAILED || !empty($userid))) {
 189          if ($report == STATS_REPORT_LOGINS && $course->id != SITEID) {
 190              print_error('reportnotavailable');
 191          }
 192  
 193          $param = stats_get_parameters($time, $report, $course->id, $mode, $roleid);
 194  
 195          if ($mode == STATS_MODE_DETAILED) {
 196              $param->table = 'user_'.$param->table;
 197          }
 198  
 199          if (!empty($param->sql)) {
 200              $sql = $param->sql;
 201          } else {
 202              //TODO: lceanup this ugly mess
 203              $sql = 'SELECT '.((empty($param->fieldscomplete)) ? 'id,roleid,timeend,' : '').$param->fields
 204                  .' FROM {stats_'.$param->table.'} WHERE '
 205                  .(($course->id == SITEID) ? '' : ' courseid = '.$course->id.' AND ')
 206                  .((!empty($userid)) ? ' userid = '.$userid.' AND ' : '')
 207                  .((!empty($roleid)) ? ' roleid = '.$roleid.' AND ' : '')
 208                  . ((!empty($param->stattype)) ? ' stattype = \''.$param->stattype.'\' AND ' : '')
 209                  .' timeend >= '.$param->timeafter
 210                  .' '.$param->extras
 211                  .' ORDER BY timeend DESC';
 212          }
 213  
 214          $stats = $DB->get_records_sql($sql);
 215  
 216          if (empty($stats)) {
 217              echo $OUTPUT->notification(get_string('statsnodata'));
 218  
 219          } else {
 220  
 221              $stats = stats_fix_zeros($stats,$param->timeafter,$param->table,(!empty($param->line2)));
 222  
 223              $rolename = '';
 224              $userdisplayname = '';
 225              $coursecontext = context_course::instance($course->id);
 226  
 227              if (!empty($roleid) && $role = $DB->get_record('role', ['id' => $roleid])) {
 228                  $rolename = ' ' . role_get_name($role, $coursecontext);
 229              }
 230              if (!empty($user)) {
 231                  $userdisplayname = ' ' . fullname($user, true);
 232              }
 233              echo $OUTPUT->heading(
 234                  format_string($course->shortname) .
 235                  ' - ' .
 236                  get_string('statsreport' . $report) .
 237                  $rolename .
 238                  $userdisplayname
 239              );
 240  
 241              if ($mode == STATS_MODE_DETAILED) {
 242                  report_stats_print_chart($course->id, $report, $time, $mode, $userid);
 243              } else {
 244                  report_stats_print_chart($course->id, $report, $time, $mode, null, $roleid);
 245              }
 246  
 247              $table = new html_table();
 248              $table->align = array('left','center','center','center');
 249              $param->table = str_replace('user_','',$param->table);
 250              switch ($param->table) {
 251                  case 'daily'  : $period = get_string('day'); break;
 252                  case 'weekly' : $period = get_string('week'); break;
 253                  case 'monthly': $period = get_string('month', 'form'); break;
 254                  default : $period = '';
 255              }
 256              $table->head = array(get_string('periodending','moodle',$period));
 257              if (empty($param->crosstab)) {
 258                  $table->head[] = $param->line1;
 259                  if (!empty($param->line2)) {
 260                      $table->head[] = $param->line2;
 261                  }
 262              }
 263              if (!file_exists($CFG->dirroot.'/report/log/index.php')) {
 264                  // bad luck, we can not link other report
 265              } else if (empty($param->crosstab)) {
 266                  foreach  ($stats as $stat) {
 267                      $a = array(userdate($stat->timeend - DAYSECS, get_string('strftimedate'), $CFG->timezone),
 268                              $stat->line1);
 269                      if (isset($stat->line2)) {
 270                          $a[] = $stat->line2;
 271                      }
 272                      if (empty($CFG->loglifetime) || ($stat->timeend-(60*60*24)) >= (time()-60*60*24*$CFG->loglifetime)) {
 273                          if (has_capability('report/log:view', context_course::instance($course->id))) {
 274                              $a[] = '<a href="'.$CFG->wwwroot.'/report/log/index.php?id='.
 275                                  $course->id.'&amp;chooselog=1&amp;showusers=1&amp;showcourses=1&amp;user='
 276                                  .$userid.'&amp;date='.usergetmidnight($stat->timeend-(60*60*24)).'">'
 277                                  .get_string('course').' ' .get_string('logs').'</a>&nbsp;';
 278                          } else {
 279                              $a[] = '';
 280                          }
 281                      }
 282                      $table->data[] = $a;
 283                  }
 284              } else {
 285                  $data = array();
 286                  $roles = array();
 287                  $times = array();
 288                  $missedlines = array();
 289                  $coursecontext = context_course::instance($course->id);
 290                  $rolenames = get_viewable_roles($coursecontext);
 291                  foreach ($stats as $stat) {
 292                      if (!empty($stat->zerofixed)) {
 293                          $missedlines[] = $stat->timeend;
 294                      }
 295                      $data[$stat->timeend][$stat->roleid] = $stat->line1;
 296                      if ($stat->roleid != 0) {
 297                          if (!array_key_exists($stat->roleid, $roles) && array_key_exists($stat->roleid, $rolenames)) {
 298                              $roles[$stat->roleid] = $rolenames[$stat->roleid];
 299                          }
 300                      } else {
 301                          if (!array_key_exists($stat->roleid,$roles)) {
 302                              $roles[$stat->roleid] = get_string('all');
 303                          }
 304                      }
 305                      if (!array_key_exists($stat->timeend,$times)) {
 306                          $times[$stat->timeend] = userdate($stat->timeend - DAYSECS, get_string('strftimedate'),
 307                                  $CFG->timezone);
 308                      }
 309                  }
 310  
 311                  foreach ($data as $time => $rolesdata) {
 312                      if (in_array($time,$missedlines)) {
 313                          $rolesdata = array();
 314                          foreach ($roles as $roleid => $guff) {
 315                              $rolesdata[$roleid] = 0;
 316                          }
 317                      }
 318                      else {
 319                          foreach (array_keys($roles) as $r) {
 320                              if (!array_key_exists($r, $rolesdata)) {
 321                                  $rolesdata[$r] = 0;
 322                              }
 323                          }
 324                      }
 325                      krsort($rolesdata);
 326                      $row = array_merge(array($times[$time]),$rolesdata);
 327                      if (empty($CFG->loglifetime) || ($stat->timeend-(60*60*24)) >= (time()-60*60*24*$CFG->loglifetime)) {
 328                          if (has_capability('report/log:view', context_course::instance($course->id))) {
 329                              $row[] = '<a href="'.$CFG->wwwroot.'/report/log/index.php?id='
 330                                  .$course->id.'&amp;chooselog=1&amp;showusers=1&amp;showcourses=1&amp;user='.$userid
 331                                  .'&amp;date='.usergetmidnight($time-(60*60*24)).'">'
 332                                  .get_string('course').' ' .get_string('logs').'</a>&nbsp;';
 333                          } else {
 334                              $row[] = '';
 335                          }
 336                      }
 337                      $table->data[] = $row;
 338                  }
 339                  krsort($roles);
 340                  $table->head = array_merge($table->head,$roles);
 341              }
 342              $table->head[] = get_string('logs');
 343              //if (!empty($lastrecord)) {
 344                  //$lastrecord[] = $lastlink;
 345                  //$table->data[] = $lastrecord;
 346              //}
 347              echo html_writer::table($table);
 348          }
 349      }
 350  }
 351  
 352  /**
 353   * Fetch statistics data and generate a line chart.
 354   *
 355   * The statistic chart can be view, posts separated by roles and dates.
 356   *
 357   * @param int $courseid course id.
 358   * @param int $report the report type constant eg. STATS_REPORT_LOGINS as defined on statslib.
 359   * @param int $time timestamp of the selected time period.
 360   * @param int $mode the report mode, eg. STATS_MODE_DETAILED as defined on statslib.
 361   * @param int $userid selected user id.
 362   * @param int $roleid selected role id.
 363   */
 364  function report_stats_print_chart($courseid, $report, $time, $mode, $userid = 0, $roleid = 0) {
 365      global $DB, $CFG, $OUTPUT;
 366  
 367      $course = $DB->get_record("course", array("id" => $courseid), '*', MUST_EXIST);
 368      $coursecontext = context_course::instance($course->id);
 369  
 370      stats_check_uptodate($course->id);
 371  
 372      $param = stats_get_parameters($time, $report, $course->id, $mode, $roleid);
 373  
 374      if (!empty($userid)) {
 375          $param->table = 'user_' . $param->table;
 376      }
 377  
 378      // TODO: cleanup this ugly mess.
 379      $sql = 'SELECT '.((empty($param->fieldscomplete)) ? 'id,roleid,timeend,' : '').$param->fields
 380          .' FROM {stats_'.$param->table.'} WHERE '
 381          .(($course->id == SITEID) ? '' : ' courseid = '.$course->id.' AND ')
 382          .((!empty($userid)) ? ' userid = '.$userid.' AND ' : '')
 383          .((!empty($roleid)) ? ' roleid = '.$roleid.' AND ' : '')
 384          . ((!empty($param->stattype)) ? ' stattype = \''.$param->stattype.'\' AND ' : '')
 385          .' timeend >= '.$param->timeafter
 386          .' '.$param->extras
 387          .' ORDER BY timeend DESC';
 388      $stats = $DB->get_records_sql($sql, $param->params);
 389      $stats = stats_fix_zeros($stats, $param->timeafter, $param->table, (!empty($param->line2)),
 390              (!empty($param->line3)));
 391      $stats = array_reverse($stats);
 392  
 393      $chart = new \core\chart_line();
 394      if (empty($param->crosstab)) {
 395          $data = [];
 396          $times = [];
 397          foreach ($stats as $stat) {
 398              // Build the array of formatted times indexed by timestamp used as labels.
 399              if (!array_key_exists($stat->timeend, $times)) {
 400                  $times[$stat->timeend] = userdate($stat->timeend - DAYSECS, get_string('strftimedate'), $CFG->timezone);
 401  
 402                  // Just add the data if the time hasn't been added yet.
 403                  // The number of lines of data must match the number of labels.
 404                  $data['line1'][] = $stat->line1;
 405                  if (isset($stat->line2)) {
 406                      $data['line2'][] = $stat->line2;
 407                  }
 408                  if (isset($stat->line3)) {
 409                      $data['line3'][] = $stat->line3;
 410                  }
 411              }
 412          }
 413          foreach ($data as $line => $serie) {
 414              $series = new \core\chart_series($param->{$line}, array_values($serie));
 415              $chart->add_series($series);
 416          }
 417      } else {
 418          $data = array();
 419          $times = array();
 420          $roles = array();
 421          $missedlines = array();
 422          $rolenames = get_viewable_roles($coursecontext);
 423  
 424          foreach ($stats as $stat) {
 425              $data[$stat->roleid][$stat->timeend] = $stat->line1;
 426              if (!empty($stat->zerofixed)) {
 427                  $missedlines[] = $stat->timeend;
 428              }
 429              if ($stat->roleid != 0) {
 430                  if (!array_key_exists($stat->roleid, $roles) && array_key_exists($stat->roleid, $rolenames)) {
 431                      $roles[$stat->roleid] = $rolenames[$stat->roleid];
 432                  }
 433              } else {
 434                  if (!array_key_exists($stat->roleid, $roles)) {
 435                      $roles[$stat->roleid] = get_string('all');
 436                  }
 437              }
 438  
 439              // Build the array of formatted times indexed by timestamp used as labels.
 440              if (!array_key_exists($stat->timeend, $times)) {
 441                  $times[$stat->timeend] = userdate($stat->timeend - DAYSECS, get_string('strftimedate'), $CFG->timezone);
 442              }
 443          }
 444          // Fill empty days with zero to avoid chart errors.
 445          foreach (array_keys($times) as $t) {
 446              foreach ($data as $roleid => $stuff) {
 447                  if (!array_key_exists($t, $stuff)) {
 448                      $data[$roleid][$t] = 0;
 449                  }
 450              }
 451          }
 452          krsort($roles);
 453          foreach ($roles as $roleid => $rolename) {
 454              ksort($data[$roleid]);
 455              $series = new \core\chart_series($rolename, array_values($data[$roleid]));
 456              $chart->add_series($series);
 457          }
 458      }
 459      $chart->set_labels(array_values($times));
 460      echo $OUTPUT->render_chart($chart, false);
 461  }