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

   1  <?php
   2  
   3  // This file is part of Moodle - http://moodle.org/
   4  //
   5  // Moodle is free software: you can redistribute it and/or modify
   6  // it under the terms of the GNU General Public License as published by
   7  // the Free Software Foundation, either version 3 of the License, or
   8  // (at your option) any later version.
   9  //
  10  // Moodle is distributed in the hope that it will be useful,
  11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  // GNU General Public License for more details.
  14  //
  15  // You should have received a copy of the GNU General Public License
  16  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17  
  18  /**
  19   * Allows the admin to manage question types.
  20   *
  21   * @package    moodlecore
  22   * @subpackage questionbank
  23   * @copyright  2008 Tim Hunt
  24   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  
  28  require_once(__DIR__ . '/../config.php');
  29  require_once($CFG->libdir . '/questionlib.php');
  30  require_once($CFG->libdir . '/adminlib.php');
  31  require_once($CFG->libdir . '/tablelib.php');
  32  
  33  admin_externalpage_setup('manageqtypes');
  34  
  35  $systemcontext = context_system::instance();
  36  require_capability('moodle/question:config', $systemcontext);
  37  $canviewreports = has_capability('report/questioninstances:view', $systemcontext);
  38  
  39  $thispageurl = new moodle_url('/admin/qtypes.php');
  40  
  41  $qtypes = question_bank::get_all_qtypes();
  42  $pluginmanager = core_plugin_manager::instance();
  43  
  44  // Get some data we will need - question counts and which types are needed.
  45  $counts = $DB->get_records_sql("
  46          SELECT qtype, COUNT(1) as numquestions, SUM(hidden) as numhidden
  47          FROM {question} GROUP BY qtype", array());
  48  $needed = array();
  49  foreach ($qtypes as $qtypename => $qtype) {
  50      if (!isset($counts[$qtypename])) {
  51          $counts[$qtypename] = new stdClass;
  52          $counts[$qtypename]->numquestions = 0;
  53          $counts[$qtypename]->numhidden = 0;
  54      }
  55      $needed[$qtypename] = $counts[$qtypename]->numquestions > 0 ||
  56              $pluginmanager->other_plugins_that_require($qtype->plugin_name());
  57      $counts[$qtypename]->numquestions -= $counts[$qtypename]->numhidden;
  58  }
  59  $needed['missingtype'] = true; // The system needs the missing question type.
  60  foreach ($counts as $qtypename => $count) {
  61      if (!isset($qtypes[$qtypename])) {
  62          $counts['missingtype']->numquestions += $count->numquestions - $count->numhidden;
  63          $counts['missingtype']->numhidden += $count->numhidden;
  64      }
  65  }
  66  
  67  // Work of the correct sort order.
  68  $config = get_config('question');
  69  $sortedqtypes = array();
  70  foreach ($qtypes as $qtypename => $qtype) {
  71      $sortedqtypes[$qtypename] = $qtype->local_name();
  72  }
  73  $sortedqtypes = question_bank::sort_qtype_array($sortedqtypes, $config);
  74  
  75  // Process actions ============================================================
  76  
  77  // Disable.
  78  if (($disable = optional_param('disable', '', PARAM_PLUGIN)) && confirm_sesskey()) {
  79      if (!isset($qtypes[$disable])) {
  80          print_error('unknownquestiontype', 'question', $thispageurl, $disable);
  81      }
  82  
  83      set_config($disable . '_disabled', 1, 'question');
  84      redirect($thispageurl);
  85  }
  86  
  87  // Enable.
  88  if (($enable = optional_param('enable', '', PARAM_PLUGIN)) && confirm_sesskey()) {
  89      if (!isset($qtypes[$enable])) {
  90          print_error('unknownquestiontype', 'question', $thispageurl, $enable);
  91      }
  92  
  93      if (!$qtypes[$enable]->menu_name()) {
  94          print_error('cannotenable', 'question', $thispageurl, $enable);
  95      }
  96  
  97      unset_config($enable . '_disabled', 'question');
  98      redirect($thispageurl);
  99  }
 100  
 101  // Move up in order.
 102  if (($up = optional_param('up', '', PARAM_PLUGIN)) && confirm_sesskey()) {
 103      if (!isset($qtypes[$up])) {
 104          print_error('unknownquestiontype', 'question', $thispageurl, $up);
 105      }
 106  
 107      $neworder = question_reorder_qtypes($sortedqtypes, $up, -1);
 108      question_save_qtype_order($neworder, $config);
 109      redirect($thispageurl);
 110  }
 111  
 112  // Move down in order.
 113  if (($down = optional_param('down', '', PARAM_PLUGIN)) && confirm_sesskey()) {
 114      if (!isset($qtypes[$down])) {
 115          print_error('unknownquestiontype', 'question', $thispageurl, $down);
 116      }
 117  
 118      $neworder = question_reorder_qtypes($sortedqtypes, $down, +1);
 119      question_save_qtype_order($neworder, $config);
 120      redirect($thispageurl);
 121  }
 122  
 123  // End of process actions ==================================================
 124  
 125  // Print the page heading.
 126  echo $OUTPUT->header();
 127  echo $OUTPUT->heading(get_string('manageqtypes', 'admin'));
 128  
 129  // Set up the table.
 130  $table = new flexible_table('qtypeadmintable');
 131  $table->define_baseurl($thispageurl);
 132  $table->define_columns(array('questiontype', 'numquestions', 'version', 'requires',
 133          'availableto', 'uninstall', 'settings'));
 134  $table->define_headers(array(get_string('questiontype', 'question'), get_string('numquestions', 'question'),
 135          get_string('version'), get_string('requires', 'admin'), get_string('availableq', 'question'),
 136          get_string('settings'), get_string('uninstallplugin', 'core_admin')));
 137  $table->set_attribute('id', 'qtypes');
 138  $table->set_attribute('class', 'admintable generaltable');
 139  $table->setup();
 140  
 141  // Add a row for each question type.
 142  $createabletypes = question_bank::get_creatable_qtypes();
 143  foreach ($sortedqtypes as $qtypename => $localname) {
 144      $qtype = $qtypes[$qtypename];
 145      $row = array();
 146  
 147      // Question icon and name.
 148      $fakequestion = new stdClass;
 149      $fakequestion->qtype = $qtypename;
 150      $icon = print_question_icon($fakequestion, true);
 151      $row[] = $icon . ' ' . $localname;
 152  
 153      // Number of questions of this type.
 154      if ($counts[$qtypename]->numquestions + $counts[$qtypename]->numhidden > 0) {
 155          if ($counts[$qtypename]->numhidden > 0) {
 156              $strcount = get_string('numquestionsandhidden', 'question', $counts[$qtypename]);
 157          } else {
 158              $strcount = $counts[$qtypename]->numquestions;
 159          }
 160          if ($canviewreports) {
 161              $row[] = html_writer::link(new moodle_url('/report/questioninstances/index.php',
 162                      array('qtype' => $qtypename)), $strcount, array('title' => get_string('showdetails', 'admin')));
 163          } else {
 164              $strcount;
 165          }
 166      } else {
 167          $row[] = 0;
 168      }
 169  
 170      // Question version number.
 171      $version = get_config('qtype_' . $qtypename, 'version');
 172      if ($version) {
 173          $row[] = $version;
 174      } else {
 175          $row[] = html_writer::tag('span', get_string('nodatabase', 'admin'), array('class' => 'text-muted'));
 176      }
 177  
 178      // Other question types required by this one.
 179      $plugin = $pluginmanager->get_plugin_info($qtype->plugin_name());
 180      $requiredtypes = $plugin->get_other_required_plugins();
 181      $strtypes = array();
 182      if (!empty($requiredtypes)) {
 183          foreach ($requiredtypes as $required => $notused) {
 184              $strtypes[] = $pluginmanager->plugin_name($required);
 185          }
 186          $row[] = implode(', ', $strtypes);
 187      } else {
 188          $row[] = '';
 189      }
 190  
 191      // Are people allowed to create new questions of this type?
 192      $rowclass = '';
 193      if ($qtype->menu_name()) {
 194          $createable = isset($createabletypes[$qtypename]);
 195          $icons = question_types_enable_disable_icons($qtypename, $createable);
 196          if (!$createable) {
 197              $rowclass = 'dimmed_text';
 198          }
 199      } else {
 200          $icons = $OUTPUT->spacer();
 201      }
 202  
 203      // Move icons.
 204      $icons .= question_type_icon_html('up', $qtypename, 't/up', get_string('up'), '');
 205      $icons .= question_type_icon_html('down', $qtypename, 't/down', get_string('down'), '');
 206      $row[] = $icons;
 207  
 208      // Settings link, if available.
 209      $settings = admin_get_root()->locate('qtypesetting' . $qtypename);
 210      if ($settings instanceof admin_externalpage) {
 211          $row[] = html_writer::link($settings->url, get_string('settings'));
 212      } else if ($settings instanceof admin_settingpage) {
 213          $row[] = html_writer::link(new moodle_url('/admin/settings.php',
 214                  array('section' => 'qtypesetting' . $qtypename)), get_string('settings'));
 215      } else {
 216          $row[] = '';
 217      }
 218  
 219      // Uninstall link, if available.
 220      if ($needed[$qtypename]) {
 221          $row[] = '';
 222      } else {
 223          $uninstallurl = core_plugin_manager::instance()->get_uninstall_url('qtype_'.$qtypename, 'manage');
 224          if ($uninstallurl) {
 225              $row[] = html_writer::link($uninstallurl, get_string('uninstallplugin', 'core_admin'),
 226                  array('title' => get_string('uninstallqtype', 'question')));
 227          }
 228      }
 229  
 230      $table->add_data($row, $rowclass);
 231  }
 232  
 233  $table->finish_output();
 234  
 235  echo $OUTPUT->footer();
 236  
 237  function question_types_enable_disable_icons($qtypename, $createable) {
 238      if ($createable) {
 239          return question_type_icon_html('disable', $qtypename, 't/hide',
 240                  get_string('enabled', 'question'), get_string('disable'));
 241      } else {
 242          return question_type_icon_html('enable', $qtypename, 't/show',
 243                  get_string('disabled', 'question'), get_string('enable'));
 244      }
 245  }
 246  
 247  function question_type_icon_html($action, $qtypename, $icon, $alt, $tip) {
 248      global $OUTPUT;
 249      return $OUTPUT->action_icon(new moodle_url('/admin/qtypes.php',
 250              array($action => $qtypename, 'sesskey' => sesskey())),
 251              new pix_icon($icon, $alt, 'moodle', array('title' => '', 'class' => 'iconsmall')),
 252              null, array('title' => $tip));
 253  }
 254