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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   * Assess a submission or view the single assessment
  20   *
  21   * Assessment id parameter must be passed. The script displays the submission and
  22   * the assessment form. If the current user is the reviewer and the assessing is
  23   * allowed, new assessment can be saved.
  24   * If the assessing is not allowed (for example, the assessment period is over
  25   * or the current user is eg a teacher), the assessment form is opened
  26   * in a non-editable mode.
  27   * The capability 'mod/workshop:peerassess' is intentionally not checked here.
  28   * The user is considered as a reviewer if the corresponding assessment record
  29   * has been prepared for him/her (during the allocation). So even a user without the
  30   * peerassess capability (like a 'teacher', for example) can become a reviewer.
  31   *
  32   * @package    mod_workshop
  33   * @copyright  2009 David Mudrak <david.mudrak@gmail.com>
  34   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   */
  36  
  37  require(__DIR__.'/../../config.php');
  38  require_once (__DIR__.'/locallib.php');
  39  
  40  $asid       = required_param('asid', PARAM_INT);  // assessment id
  41  $assessment = $DB->get_record('workshop_assessments', array('id' => $asid), '*', MUST_EXIST);
  42  $submission = $DB->get_record('workshop_submissions', array('id' => $assessment->submissionid, 'example' => 0), '*', MUST_EXIST);
  43  $workshop   = $DB->get_record('workshop', array('id' => $submission->workshopid), '*', MUST_EXIST);
  44  $course     = $DB->get_record('course', array('id' => $workshop->course), '*', MUST_EXIST);
  45  $cm         = get_coursemodule_from_instance('workshop', $workshop->id, $course->id, false, MUST_EXIST);
  46  
  47  require_login($course, false, $cm);
  48  if (isguestuser()) {
  49      print_error('guestsarenotallowed');
  50  }
  51  $workshop = new workshop($workshop, $cm, $course);
  52  
  53  $PAGE->set_url($workshop->assess_url($assessment->id));
  54  $PAGE->set_title($workshop->name);
  55  $PAGE->set_heading($course->fullname);
  56  $PAGE->navbar->add(get_string('assessingsubmission', 'workshop'));
  57  
  58  $canviewallassessments  = has_capability('mod/workshop:viewallassessments', $workshop->context);
  59  $canviewallsubmissions  = has_capability('mod/workshop:viewallsubmissions', $workshop->context);
  60  $cansetassessmentweight = has_capability('mod/workshop:allocate', $workshop->context);
  61  $canoverridegrades      = has_capability('mod/workshop:overridegrades', $workshop->context);
  62  $isreviewer             = ($USER->id == $assessment->reviewerid);
  63  $isauthor               = ($USER->id == $submission->authorid);
  64  
  65  if ($canviewallsubmissions) {
  66      // check this flag against the group membership yet
  67      if (groups_get_activity_groupmode($workshop->cm) == SEPARATEGROUPS) {
  68          // user must have accessallgroups or share at least one group with the submission author
  69          if (!has_capability('moodle/site:accessallgroups', $workshop->context)) {
  70              $usersgroups = groups_get_activity_allowed_groups($workshop->cm);
  71              $authorsgroups = groups_get_all_groups($workshop->course->id, $submission->authorid, $workshop->cm->groupingid, 'g.id');
  72              $sharedgroups = array_intersect_key($usersgroups, $authorsgroups);
  73              if (empty($sharedgroups)) {
  74                  $canviewallsubmissions = false;
  75              }
  76          }
  77      }
  78  }
  79  
  80  if ($isreviewer or $isauthor or ($canviewallassessments and $canviewallsubmissions)) {
  81      // such a user can continue
  82  } else {
  83      print_error('nopermissions', 'error', $workshop->view_url(), 'view this assessment');
  84  }
  85  
  86  if ($isauthor and !$isreviewer and !$canviewallassessments and $workshop->phase != workshop::PHASE_CLOSED) {
  87      // authors can see assessments of their work at the end of workshop only
  88      print_error('nopermissions', 'error', $workshop->view_url(), 'view assessment of own work before workshop is closed');
  89  }
  90  
  91  // only the reviewer is allowed to modify the assessment
  92  if ($isreviewer and $workshop->assessing_allowed($USER->id)) {
  93      $assessmenteditable = true;
  94  } else {
  95      $assessmenteditable = false;
  96  }
  97  
  98  // check that all required examples have been assessed by the user
  99  if ($assessmenteditable and $workshop->useexamples and $workshop->examplesmode == workshop::EXAMPLES_BEFORE_ASSESSMENT
 100          and !has_capability('mod/workshop:manageexamples', $workshop->context)) {
 101      // the reviewer must have submitted their own submission
 102      $reviewersubmission = $workshop->get_submission_by_author($assessment->reviewerid);
 103      $output = $PAGE->get_renderer('mod_workshop');
 104      if (!$reviewersubmission) {
 105          // no money, no love
 106          $assessmenteditable = false;
 107          echo $output->header();
 108          echo $output->heading(format_string($workshop->name));
 109          notice(get_string('exampleneedsubmission', 'workshop'), new moodle_url('/mod/workshop/view.php', array('id' => $cm->id)));
 110          echo $output->footer();
 111          exit;
 112      } else {
 113          $examples = $workshop->get_examples_for_reviewer($assessment->reviewerid);
 114          foreach ($examples as $exampleid => $example) {
 115              if (is_null($example->grade)) {
 116                  $assessmenteditable = false;
 117                  echo $output->header();
 118                  echo $output->heading(format_string($workshop->name));
 119                  notice(get_string('exampleneedassessed', 'workshop'), new moodle_url('/mod/workshop/view.php', array('id' => $cm->id)));
 120                  echo $output->footer();
 121                  exit;
 122              }
 123          }
 124      }
 125  }
 126  
 127  // load the grading strategy logic
 128  $strategy = $workshop->grading_strategy_instance();
 129  
 130  if (is_null($assessment->grade) and !$assessmenteditable) {
 131      $mform = null;
 132  } else {
 133      // Are there any other pending assessments to do but this one?
 134      if ($assessmenteditable) {
 135          $pending = $workshop->get_pending_assessments_by_reviewer($assessment->reviewerid, $assessment->id);
 136      } else {
 137          $pending = array();
 138      }
 139      // load the assessment form and process the submitted data eventually
 140      $mform = $strategy->get_assessment_form($PAGE->url, 'assessment', $assessment, $assessmenteditable,
 141                                          array('editableweight' => $cansetassessmentweight, 'pending' => !empty($pending)));
 142  
 143      // Set data managed by the workshop core, subplugins set their own data themselves.
 144      $currentdata = (object)array(
 145          'weight' => $assessment->weight,
 146          'feedbackauthor' => $assessment->feedbackauthor,
 147          'feedbackauthorformat' => $assessment->feedbackauthorformat,
 148      );
 149      if ($assessmenteditable and $workshop->overallfeedbackmode) {
 150          $currentdata = file_prepare_standard_editor($currentdata, 'feedbackauthor', $workshop->overall_feedback_content_options(),
 151              $workshop->context, 'mod_workshop', 'overallfeedback_content', $assessment->id);
 152          if ($workshop->overallfeedbackfiles) {
 153              $currentdata = file_prepare_standard_filemanager($currentdata, 'feedbackauthorattachment',
 154                  $workshop->overall_feedback_attachment_options(), $workshop->context, 'mod_workshop', 'overallfeedback_attachment',
 155                  $assessment->id);
 156          }
 157      }
 158      $mform->set_data($currentdata);
 159  
 160      if ($mform->is_cancelled()) {
 161          redirect($workshop->view_url());
 162      } elseif ($assessmenteditable and ($data = $mform->get_data())) {
 163  
 164          // Let the grading strategy subplugin save its data.
 165          $rawgrade = $strategy->save_assessment($assessment, $data);
 166  
 167          // Store the data managed by the workshop core.
 168          $coredata = (object)array('id' => $assessment->id);
 169          if (isset($data->feedbackauthor_editor)) {
 170              $coredata->feedbackauthor_editor = $data->feedbackauthor_editor;
 171              $coredata = file_postupdate_standard_editor($coredata, 'feedbackauthor', $workshop->overall_feedback_content_options(),
 172                  $workshop->context, 'mod_workshop', 'overallfeedback_content', $assessment->id);
 173              unset($coredata->feedbackauthor_editor);
 174          }
 175          if (isset($data->feedbackauthorattachment_filemanager)) {
 176              $coredata->feedbackauthorattachment_filemanager = $data->feedbackauthorattachment_filemanager;
 177              $coredata = file_postupdate_standard_filemanager($coredata, 'feedbackauthorattachment',
 178                  $workshop->overall_feedback_attachment_options(), $workshop->context, 'mod_workshop', 'overallfeedback_attachment',
 179                  $assessment->id);
 180              unset($coredata->feedbackauthorattachment_filemanager);
 181              if (empty($coredata->feedbackauthorattachment)) {
 182                  $coredata->feedbackauthorattachment = 0;
 183              }
 184          }
 185          if (isset($data->weight) and $cansetassessmentweight) {
 186              $coredata->weight = $data->weight;
 187          }
 188          // Update the assessment data if there is something other than just the 'id'.
 189          if (count((array)$coredata) > 1 ) {
 190              $DB->update_record('workshop_assessments', $coredata);
 191              $params = array(
 192                  'relateduserid' => $submission->authorid,
 193                  'objectid' => $assessment->id,
 194                  'context' => $workshop->context,
 195                  'other' => array(
 196                      'workshopid' => $workshop->id,
 197                      'submissionid' => $assessment->submissionid
 198                  )
 199              );
 200  
 201              if (is_null($assessment->grade)) {
 202                  // All workshop_assessments are created when allocations are made. The create event is of more use located here.
 203                  $event = \mod_workshop\event\submission_assessed::create($params);
 204                  $event->trigger();
 205              } else {
 206                  $params['other']['grade'] = $assessment->grade;
 207                  $event = \mod_workshop\event\submission_reassessed::create($params);
 208                  $event->trigger();
 209              }
 210          }
 211  
 212          // And finally redirect the user's browser.
 213          if (!is_null($rawgrade) and isset($data->saveandclose)) {
 214              redirect($workshop->view_url());
 215          } else if (!is_null($rawgrade) and isset($data->saveandshownext)) {
 216              $next = reset($pending);
 217              if (!empty($next)) {
 218                  redirect($workshop->assess_url($next->id));
 219              } else {
 220                  redirect($PAGE->url); // This should never happen but just in case...
 221              }
 222          } else {
 223              // either it is not possible to calculate the $rawgrade
 224              // or the reviewer has chosen "Save and continue"
 225              redirect($PAGE->url);
 226          }
 227      }
 228  }
 229  
 230  // load the form to override gradinggrade and/or set weight and process the submitted data eventually
 231  if ($canoverridegrades or $cansetassessmentweight) {
 232      $options = array(
 233          'editable' => true,
 234          'editableweight' => $cansetassessmentweight,
 235          'overridablegradinggrade' => $canoverridegrades);
 236      $feedbackform = $workshop->get_feedbackreviewer_form($PAGE->url, $assessment, $options);
 237      if ($data = $feedbackform->get_data()) {
 238          $data = file_postupdate_standard_editor($data, 'feedbackreviewer', array(), $workshop->context);
 239          $record = new stdclass();
 240          $record->id = $assessment->id;
 241          if ($cansetassessmentweight) {
 242              $record->weight = $data->weight;
 243          }
 244          if ($canoverridegrades) {
 245              $record->gradinggradeover = $workshop->raw_grade_value($data->gradinggradeover, $workshop->gradinggrade);
 246              $record->gradinggradeoverby = $USER->id;
 247              $record->feedbackreviewer = $data->feedbackreviewer;
 248              $record->feedbackreviewerformat = $data->feedbackreviewerformat;
 249          }
 250          $DB->update_record('workshop_assessments', $record);
 251          redirect($workshop->view_url());
 252      }
 253  }
 254  
 255  // output starts here
 256  $output = $PAGE->get_renderer('mod_workshop');      // workshop renderer
 257  echo $output->header();
 258  echo $output->heading(format_string($workshop->name));
 259  echo $output->heading(get_string('assessedsubmission', 'workshop'), 3);
 260  
 261  $submission = $workshop->get_submission_by_id($submission->id);     // reload so can be passed to the renderer
 262  echo $output->render($workshop->prepare_submission($submission, has_capability('mod/workshop:viewauthornames', $workshop->context)));
 263  
 264  // show instructions for assessing as they may contain important information
 265  // for evaluating the assessment
 266  if (trim($workshop->instructreviewers)) {
 267      $instructions = file_rewrite_pluginfile_urls($workshop->instructreviewers, 'pluginfile.php', $PAGE->context->id,
 268          'mod_workshop', 'instructreviewers', 0, workshop::instruction_editors_options($PAGE->context));
 269      print_collapsible_region_start('', 'workshop-viewlet-instructreviewers', get_string('instructreviewers', 'workshop'));
 270      echo $output->box(format_text($instructions, $workshop->instructreviewersformat, array('overflowdiv'=>true)), array('generalbox', 'instructions'));
 271      print_collapsible_region_end();
 272  }
 273  
 274  // extend the current assessment record with user details
 275  $assessment = $workshop->get_assessment_by_id($assessment->id);
 276  
 277  if ($isreviewer) {
 278      $options    = array(
 279          'showreviewer'  => true,
 280          'showauthor'    => has_capability('mod/workshop:viewauthornames', $workshop->context),
 281          'showform'      => $assessmenteditable or !is_null($assessment->grade),
 282          'showweight'    => true,
 283      );
 284      $assessment = $workshop->prepare_assessment($assessment, $mform, $options);
 285      $assessment->title = get_string('assessmentbyyourself', 'workshop');
 286      echo $output->render($assessment);
 287  
 288  } else {
 289      $options    = array(
 290          'showreviewer'  => has_capability('mod/workshop:viewreviewernames', $workshop->context),
 291          'showauthor'    => has_capability('mod/workshop:viewauthornames', $workshop->context),
 292          'showform'      => $assessmenteditable or !is_null($assessment->grade),
 293          'showweight'    => true,
 294      );
 295      $assessment = $workshop->prepare_assessment($assessment, $mform, $options);
 296      echo $output->render($assessment);
 297  }
 298  
 299  if (!$assessmenteditable and $canoverridegrades) {
 300      $feedbackform->display();
 301  }
 302  
 303  echo $output->footer();