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   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   * Preset Menu
  20   *
  21   * This is the page that is the menu item in the config database
  22   * pages.
  23   *
  24   * This file is part of the Database module for Moodle
  25   *
  26   * @copyright 2005 Martin Dougiamas  http://dougiamas.com
  27   * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  28   * @package mod_data
  29   */
  30  
  31  require_once('../../config.php');
  32  require_once($CFG->dirroot.'/mod/data/lib.php');
  33  require_once($CFG->dirroot.'/mod/data/preset_form.php');
  34  require_once($CFG->libdir.'/xmlize.php');
  35  
  36  $id     = optional_param('id', 0, PARAM_INT);           // course module id
  37  if ($id) {
  38      $cm = get_coursemodule_from_id('data', $id, null, null, MUST_EXIST);
  39      $course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);
  40      $data = $DB->get_record('data', array('id'=>$cm->instance), '*', MUST_EXIST);
  41  } else {
  42      $d = required_param('d', PARAM_INT);     // database activity id
  43      $data = $DB->get_record('data', array('id'=>$d), '*', MUST_EXIST);
  44      $course = $DB->get_record('course', array('id'=>$data->course), '*', MUST_EXIST);
  45      $cm = get_coursemodule_from_instance('data', $data->id, $course->id, null, MUST_EXIST);
  46  }
  47  
  48  $context = context_module::instance($cm->id, MUST_EXIST);
  49  require_login($course, false, $cm);
  50  require_capability('mod/data:managetemplates', $context);
  51  $PAGE->set_url(new moodle_url('/mod/data/preset.php', array('d'=>$data->id)));
  52  $PAGE->set_title(get_string('course') . ': ' . $course->fullname);
  53  $PAGE->set_heading($course->fullname);
  54  
  55  // fill in missing properties needed for updating of instance
  56  $data->course     = $cm->course;
  57  $data->cmidnumber = $cm->idnumber;
  58  $data->instance   = $cm->instance;
  59  
  60  $presets = data_get_available_presets($context);
  61  $strdelete = get_string('deleted', 'data');
  62  foreach ($presets as &$preset) {
  63      if (!empty($preset->userid)) {
  64          $namefields = get_all_user_name_fields(true);
  65          $presetuser = $DB->get_record('user', array('id' => $preset->userid), 'id, ' . $namefields, MUST_EXIST);
  66          $preset->description = $preset->name.' ('.fullname($presetuser, true).')';
  67      } else {
  68          $preset->userid = 0;
  69          $preset->description = $preset->name;
  70          if (data_user_can_delete_preset($context, $preset) && $preset->name != 'Image gallery') {
  71              $delurl = new moodle_url('/mod/data/preset.php', array('d'=> $data->id, 'action'=>'confirmdelete', 'fullname'=>$preset->userid.'/'.$preset->shortname, 'sesskey'=>sesskey()));
  72              $delicon = html_writer::empty_tag('img', array('src'=>$OUTPUT->pix_url('t/delete'), 'class'=>'iconsmall', 'alt'=>$strdelete.' '.$preset->description));
  73              $preset->description .= html_writer::link($delurl, $delicon);
  74          }
  75      }
  76      if ($preset->userid > 0 && data_user_can_delete_preset($context, $preset)) {
  77          $delurl = new moodle_url('/mod/data/preset.php', array('d'=> $data->id, 'action'=>'confirmdelete', 'fullname'=>$preset->userid.'/'.$preset->shortname, 'sesskey'=>sesskey()));
  78          $delicon = html_writer::empty_tag('img', array('src'=>$OUTPUT->pix_url('t/delete'), 'class'=>'iconsmall', 'alt'=>$strdelete.' '.$preset->description));
  79          $preset->description .= html_writer::link($delurl, $delicon);
  80      }
  81  }
  82  // This is required because its currently bound to the last element in the array.
  83  // If someone were to inadvently use it again and this call were not here
  84  unset($preset);
  85  
  86  $form_importexisting = new data_existing_preset_form(null, array('presets'=>$presets));
  87  $form_importexisting->set_data(array('d' => $data->id));
  88  
  89  $form_importzip = new data_import_preset_zip_form();
  90  $form_importzip->set_data(array('d' => $data->id));
  91  
  92  $form_export = new data_export_form();
  93  $form_export->set_data(array('d' => $data->id));
  94  
  95  $form_save = new data_save_preset_form();
  96  $form_save->set_data(array('d' => $data->id, 'name'=>$data->name));
  97  
  98  /* Output */
  99  if (!$form_export->is_submitted()) {
 100      echo $OUTPUT->header();
 101      echo $OUTPUT->heading(format_string($data->name), 2);
 102  
 103      // Needed for tabs.php
 104      $currenttab = 'presets';
 105      $currentgroup = groups_get_activity_group($cm);
 106      $groupmode = groups_get_activity_groupmode($cm);
 107      echo $OUTPUT->box(format_module_intro('data', $data, $cm->id), 'generalbox', 'intro');
 108  
 109      include ('tabs.php');
 110  }
 111  
 112  if (optional_param('sesskey', false, PARAM_BOOL) && confirm_sesskey()) {
 113  
 114      $renderer = $PAGE->get_renderer('mod_data');
 115  
 116      if ($formdata = $form_importexisting->get_data()) {
 117          $importer = new data_preset_existing_importer($course, $cm, $data, $formdata->fullname);
 118          echo $renderer->import_setting_mappings($data, $importer);
 119          echo $OUTPUT->footer();
 120          exit(0);
 121      } else if ($formdata = $form_importzip->get_data()) {
 122          $file = new stdClass;
 123          $file->name = $form_importzip->get_new_filename('importfile');
 124          $file->path = $form_importzip->save_temp_file('importfile');
 125          $importer = new data_preset_upload_importer($course, $cm, $data, $file->path);
 126          echo $renderer->import_setting_mappings($data, $importer);
 127          echo $OUTPUT->footer();
 128          exit(0);
 129      } else if ($formdata = $form_export->get_data()) {
 130  
 131          if (headers_sent()) {
 132              print_error('headersent');
 133          }
 134  
 135          $exportfile = data_presets_export($course, $cm, $data);
 136          $exportfilename = basename($exportfile);
 137          header("Content-Type: application/download\n");
 138          header("Content-Disposition: attachment; filename=\"$exportfilename\"");
 139          header('Expires: 0');
 140          header('Cache-Control: must-revalidate,post-check=0,pre-check=0');
 141          header('Pragma: public');
 142          $exportfilehandler = fopen($exportfile, 'rb');
 143          print fread($exportfilehandler, filesize($exportfile));
 144          fclose($exportfilehandler);
 145          unlink($exportfile);
 146          exit(0);
 147  
 148      } else if ($formdata = $form_save->get_data()) {
 149          if (!empty($formdata->overwrite)) {
 150              $selectedpreset = new stdClass();
 151              foreach ($presets as $preset) {
 152                  if ($preset->name == $formdata->name) {
 153                      $selectedpreset = $preset;
 154                      break;
 155                  }
 156              }
 157              if (isset($selectedpreset->name)) {
 158                  if (data_user_can_delete_preset($context, $selectedpreset)) {
 159                      data_delete_site_preset($formdata->name);
 160                  } else {
 161                      print_error('cannotoverwritepreset', 'data');
 162                  }
 163              }
 164          }
 165  
 166          // If the preset exists now then we need to throw an error.
 167          $sitepresets = data_get_available_site_presets($context);
 168          foreach ($sitepresets as $key=>$preset) {
 169              if ($formdata->name == $preset->name) {
 170                  print_error('errorpresetexists', 'preset');
 171              }
 172          }
 173  
 174          // Save the preset now
 175          data_presets_save($course, $cm, $data, $formdata->name);
 176  
 177          echo $OUTPUT->notification(get_string('savesuccess', 'data'), 'notifysuccess');
 178          echo $OUTPUT->continue_button($PAGE->url);
 179          echo $OUTPUT->footer();
 180          exit(0);
 181      } else {
 182          $action = optional_param('action', null, PARAM_ALPHANUM);
 183          $fullname = optional_param('fullname', '', PARAM_PATH); // directory the preset is in
 184          //
 185          // find out preset owner userid and shortname
 186          $parts = explode('/', $fullname, 2);
 187          $userid = empty($parts[0]) ? 0 : (int)$parts[0];
 188          $shortname = empty($parts[1]) ? '' : $parts[1];
 189  
 190          if ($userid && ($userid != $USER->id) && !has_capability('mod/data:viewalluserpresets', $context)) {
 191              print_error('cannotaccesspresentsother', 'data');
 192          }
 193  
 194          if ($action == 'confirmdelete') {
 195              $path = data_preset_path($course, $userid, $shortname);
 196              $strwarning = get_string('deletewarning', 'data').'<br />'.$shortname;
 197              $optionsyes = array('fullname' => $userid.'/'.$shortname,
 198                               'action' => 'delete',
 199                               'd' => $data->id);
 200              $optionsno = array('d' => $data->id);
 201              echo $OUTPUT->confirm($strwarning, new moodle_url('preset.php', $optionsyes), new moodle_url('preset.php', $optionsno));
 202              echo $OUTPUT->footer();
 203              exit(0);
 204          } else if ($action == 'delete') {
 205              $selectedpreset = new stdClass();
 206              foreach ($presets as $preset) {
 207                  if ($preset->shortname == $shortname) {
 208                      $selectedpreset = $preset;
 209                  }
 210              }
 211              if (!isset($selectedpreset->shortname) || !data_user_can_delete_preset($context, $selectedpreset)) {
 212                 print_error('invalidrequest');
 213              }
 214  
 215              data_delete_site_preset($shortname);
 216  
 217              $strdeleted = get_string('deleted', 'data');
 218              echo $OUTPUT->notification("$shortname $strdeleted", 'notifysuccess');
 219          } else if ($action == 'finishimport') {
 220              $overwritesettings = optional_param('overwritesettings', false, PARAM_BOOL);
 221              if (!$fullname) {
 222                  $presetdir = $CFG->tempdir.'/forms/'.required_param('directory', PARAM_FILE);
 223                  if (!file_exists($presetdir) || !is_dir($presetdir)) {
 224                      print_error('cannotimport');
 225                  }
 226                  $importer = new data_preset_upload_importer($course, $cm, $data, $presetdir);
 227              } else {
 228                  $importer = new data_preset_existing_importer($course, $cm, $data, $fullname);
 229              }
 230              $importer->import($overwritesettings);
 231              $strimportsuccess = get_string('importsuccess', 'data');
 232              $straddentries = get_string('addentries', 'data');
 233              $strtodatabase = get_string('todatabase', 'data');
 234              if (!$DB->get_records('data_records', array('dataid'=>$data->id))) {
 235                  echo $OUTPUT->notification("$strimportsuccess <a href='edit.php?d=$data->id'>$straddentries</a> $strtodatabase", 'notifysuccess');
 236              } else {
 237                  echo $OUTPUT->notification("$strimportsuccess", 'notifysuccess');
 238              }
 239          }
 240          echo $OUTPUT->continue_button($PAGE->url);
 241          echo $OUTPUT->footer();
 242          exit(0);
 243      }
 244  }
 245  
 246  // Export forms
 247  echo $OUTPUT->heading(get_string('export', 'data'), 3);
 248  $form_export->display();
 249  $form_save->display();
 250  
 251  // Import forms
 252  echo $OUTPUT->heading(get_string('import'), 3);
 253  $form_importzip->display();
 254  $form_importexisting->display();
 255  
 256  echo $OUTPUT->footer();