[Summary view]

Differences Between: [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   * Badge award criteria
  19   *
  20   * @package    core
  21   * @subpackage badges
  22   * @copyright  2012 onwards Totara Learning Solutions Ltd {@link http://www.totaralms.com/}
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   * @author     Yuliya Bozhko <yuliya.bozhko@totaralms.com>
  25   */
  26  
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  /*
  30   * Role completion criteria type
  31   * Criteria type constant, primarily for storing criteria type in the database.
  32   */
  33  define('BADGE_CRITERIA_TYPE_OVERALL', 0);
  34  
  35  /*
  36   * Activity completion criteria type
  37   * Criteria type constant, primarily for storing criteria type in the database.
  38   */
  39  define('BADGE_CRITERIA_TYPE_ACTIVITY', 1);
  40  
  41  /*
  42   * Duration completion criteria type
  43   * Criteria type constant, primarily for storing criteria type in the database.
  44   */
  45  define('BADGE_CRITERIA_TYPE_MANUAL', 2);
  46  
  47  /*
  48   * Grade completion criteria type
  49   * Criteria type constant, primarily for storing criteria type in the database.
  50   */
  51  define('BADGE_CRITERIA_TYPE_SOCIAL', 3);
  52  
  53  /*
  54   * Course completion criteria type
  55   * Criteria type constant, primarily for storing criteria type in the database.
  56  */
  57  define('BADGE_CRITERIA_TYPE_COURSE', 4);
  58  
  59  /*
  60   * Courseset completion criteria type
  61   * Criteria type constant, primarily for storing criteria type in the database.
  62   */
  63  define('BADGE_CRITERIA_TYPE_COURSESET', 5);
  64  
  65  /*
  66   * Course completion criteria type
  67   * Criteria type constant, primarily for storing criteria type in the database.
  68   */
  69  define('BADGE_CRITERIA_TYPE_PROFILE', 6);
  70  
  71  /*
  72   * Badge completion criteria type
  73   * Criteria type constant, primarily for storing criteria type in the database.
  74   */
  75  define('BADGE_CRITERIA_TYPE_BADGE', 7);
  76  
  77  /*
  78   * Cohort criteria type
  79   * Criteria type constant, primarily for storing criteria type in the database.
  80   */
  81  define('BADGE_CRITERIA_TYPE_COHORT', 8);
  82  
  83  /*
  84   * Competency criteria type
  85   * Criteria type constant, primarily for storing criteria type in the database.
  86   */
  87  define('BADGE_CRITERIA_TYPE_COMPETENCY', 9);
  88  
  89  /**
  90   * Award criteria abstract definition
  91   *
  92   */
  93  abstract class award_criteria {
  94  
  95      /**
  96       * ID of the criterion.
  97       * @var integer
  98       */
  99      public $id;
 100  
 101      /**
 102       * Aggregation method [BADGE_CRITERIA_AGGREGATION_ANY, BADGE_CRITERIA_AGGREGATION_ALL].
 103       * @var integer
 104       */
 105      public $method;
 106  
 107      /**
 108       * ID of a badge this criterion belongs to.
 109       * @var integer
 110       */
 111      public $badgeid;
 112  
 113      /**
 114       * Criterion HTML/plain text description.
 115       * @var string
 116       */
 117      public $description;
 118  
 119      /**
 120       * Format of the criterion description.
 121       * @var integer
 122       */
 123      public $descriptionformat;
 124  
 125      /**
 126       * Any additional parameters.
 127       * @var array
 128       */
 129      public $params = array();
 130  
 131      /**
 132       * The base constructor
 133       *
 134       * @param array $params
 135       */
 136      public function __construct($params) {
 137          $this->id = isset($params['id']) ? $params['id'] : 0;
 138          $this->method = isset($params['method']) ? $params['method'] : BADGE_CRITERIA_AGGREGATION_ANY;
 139          $this->badgeid = $params['badgeid'];
 140          $this->description = isset($params['description']) ? $params['description'] : '';
 141          $this->descriptionformat = isset($params['descriptionformat']) ? $params['descriptionformat'] : FORMAT_HTML;
 142          if (isset($params['id'])) {
 143              $this->params = $this->get_params($params['id']);
 144          }
 145      }
 146  
 147      /**
 148       * Factory method for creating criteria class object
 149       *
 150       * @param array $params associative arrays varname => value
 151       * @return award_criteria
 152       */
 153      public static function build($params) {
 154          global $CFG;
 155  
 156          require_once($CFG->libdir . '/badgeslib.php');
 157  
 158          $types = badges_list_criteria(false);
 159  
 160          if (!isset($params['criteriatype']) || !isset($types[$params['criteriatype']])) {
 161              print_error('error:invalidcriteriatype', 'badges');
 162          }
 163  
 164          $class = 'award_criteria_' . $types[$params['criteriatype']];
 165          require_once($CFG->dirroot . '/badges/criteria/' . $class . '.php');
 166  
 167          return new $class($params);
 168      }
 169  
 170      /**
 171       * Return criteria title
 172       *
 173       * @return string
 174       */
 175      public function get_title() {
 176          return get_string('criteria_' . $this->criteriatype, 'badges');
 177      }
 178  
 179      /**
 180       * Get criteria details for displaying to users
 181       *
 182       * @param string $short Print short version of criteria
 183       * @return string
 184       */
 185      abstract public function get_details($short = '');
 186  
 187      /**
 188       * Add appropriate criteria options to the form
 189       *
 190       */
 191      abstract public function get_options(&$mform);
 192  
 193      /**
 194       * Add appropriate parameter elements to the criteria form
 195       *
 196       */
 197      public function config_options(&$mform, $param) {
 198          global $OUTPUT;
 199          $prefix = $this->required_param . '_';
 200  
 201          if ($param['error']) {
 202              $parameter[] =& $mform->createElement('advcheckbox', $prefix . $param['id'], '',
 203                      $OUTPUT->error_text($param['name']), null, array(0, $param['id']));
 204              $mform->addGroup($parameter, 'param_' . $prefix . $param['id'], '', array(' '), false);
 205          } else {
 206              $parameter[] =& $mform->createElement('advcheckbox', $prefix . $param['id'], '', $param['name'], null, array(0, $param['id']));
 207              $parameter[] =& $mform->createElement('static', 'break_start_' . $param['id'], null,
 208                  '<div class="ml-3 mt-1 w-100 align-items-center">');
 209  
 210              if (in_array('grade', $this->optional_params)) {
 211                  $parameter[] =& $mform->createElement('static', 'mgrade_' . $param['id'], null, get_string('mingrade', 'badges'));
 212                  $parameter[] =& $mform->createElement('text', 'grade_' . $param['id'], '', array('size' => '5'));
 213                  $mform->setType('grade_' . $param['id'], PARAM_INT);
 214              }
 215  
 216              if (in_array('bydate', $this->optional_params)) {
 217                  $parameter[] =& $mform->createElement('static', 'complby_' . $param['id'], null, get_string('bydate', 'badges'));
 218                  $parameter[] =& $mform->createElement('date_selector', 'bydate_' . $param['id'], "", array('optional' => true));
 219              }
 220  
 221              $parameter[] =& $mform->createElement('static', 'break_end_' . $param['id'], null, '</div>');
 222              $mform->addGroup($parameter, 'param_' . $prefix . $param['id'], '', array(' '), false);
 223              if (in_array('grade', $this->optional_params)) {
 224                  $mform->addGroupRule('param_' . $prefix . $param['id'], array(
 225                      'grade_' . $param['id'] => array(array(get_string('err_numeric', 'form'), 'numeric', '', 'client'))));
 226              }
 227              $mform->disabledIf('bydate_' . $param['id'] . '[day]', 'bydate_' . $param['id'] . '[enabled]', 'notchecked');
 228              $mform->disabledIf('bydate_' . $param['id'] . '[month]', 'bydate_' . $param['id'] . '[enabled]', 'notchecked');
 229              $mform->disabledIf('bydate_' . $param['id'] . '[year]', 'bydate_' . $param['id'] . '[enabled]', 'notchecked');
 230              $mform->disabledIf('param_' . $prefix . $param['id'], $prefix . $param['id'], 'notchecked');
 231          }
 232  
 233          // Set default values.
 234          $mform->setDefault($prefix . $param['id'], $param['checked']);
 235          if (isset($param['bydate'])) {
 236              $mform->setDefault('bydate_' . $param['id'], $param['bydate']);
 237          }
 238          if (isset($param['grade'])) {
 239              $mform->setDefault('grade_' . $param['id'], $param['grade']);
 240          }
 241      }
 242  
 243      /**
 244       * Add appropriate criteria elements
 245       *
 246       * @param stdClass $data details of various criteria
 247       */
 248      public function config_form_criteria($data) {
 249          global $OUTPUT;
 250          $agg = $data->get_aggregation_methods();
 251  
 252          $editurl = new moodle_url('/badges/criteria_settings.php',
 253                  array('badgeid' => $this->badgeid, 'edit' => true, 'type' => $this->criteriatype, 'crit' => $this->id));
 254          $deleteurl = new moodle_url('/badges/criteria_action.php',
 255                  array('badgeid' => $this->badgeid, 'delete' => true, 'type' => $this->criteriatype));
 256          $editaction = $OUTPUT->action_icon($editurl, new pix_icon('t/edit', get_string('edit')), null, array('class' => 'criteria-action'));
 257          $deleteaction = $OUTPUT->action_icon($deleteurl, new pix_icon('t/delete', get_string('delete')), null, array('class' => 'criteria-action'));
 258  
 259          echo $OUTPUT->box_start();
 260          if (!$data->is_locked() && !$data->is_active()) {
 261              echo $OUTPUT->box($deleteaction . $editaction, array('criteria-header'));
 262          }
 263          echo $OUTPUT->heading($this->get_title() . $OUTPUT->help_icon('criteria_' . $this->criteriatype, 'badges'), 3, 'main help');
 264  
 265          if (!empty($this->description)) {
 266              $badge = new badge($this->badgeid);
 267              echo $OUTPUT->box(
 268                  format_text($this->description, $this->descriptionformat, array('context' => $badge->get_context())),
 269                  'criteria-description'
 270                  );
 271          }
 272  
 273          if (!empty($this->params)) {
 274              if (count($this->params) > 1) {
 275                  echo $OUTPUT->box(get_string('criteria_descr_' . $this->criteriatype, 'badges',
 276                          core_text::strtoupper($agg[$data->get_aggregation_method($this->criteriatype)])), array('clearfix'));
 277              } else {
 278                  echo $OUTPUT->box(get_string('criteria_descr_single_' . $this->criteriatype , 'badges'), array('clearfix'));
 279              }
 280              echo $OUTPUT->box($this->get_details(), array('clearfix'));
 281          }
 282          echo $OUTPUT->box_end();
 283      }
 284  
 285      /**
 286       * Review this criteria and decide if the user has completed
 287       *
 288       * @param int $userid User whose criteria completion needs to be reviewed.
 289       * @param bool $filtered An additional parameter indicating that user list
 290       *        has been reduced and some expensive checks can be skipped.
 291       *
 292       * @return bool Whether criteria is complete
 293       */
 294      abstract public function review($userid, $filtered = false);
 295  
 296      /**
 297       * Returns array with sql code and parameters returning all ids
 298       * of users who meet this particular criterion.
 299       *
 300       * @return array list($join, $where, $params)
 301       */
 302      abstract public function get_completed_criteria_sql();
 303  
 304      /**
 305       * Mark this criteria as complete for a user
 306       *
 307       * @param int $userid User whose criteria is completed.
 308       */
 309      public function mark_complete($userid) {
 310          global $DB;
 311          $obj = array();
 312          $obj['critid'] = $this->id;
 313          $obj['userid'] = $userid;
 314          $obj['datemet'] = time();
 315          if (!$DB->record_exists('badge_criteria_met', array('critid' => $this->id, 'userid' => $userid))) {
 316              $DB->insert_record('badge_criteria_met', $obj);
 317          }
 318      }
 319  
 320      /**
 321       * Return criteria parameters
 322       *
 323       * @param int $critid Criterion ID
 324       * @return array
 325       */
 326      public function get_params($cid) {
 327          global $DB;
 328          $params = array();
 329  
 330          $records = $DB->get_records('badge_criteria_param', array('critid' => $cid));
 331          foreach ($records as $rec) {
 332              $arr = explode('_', $rec->name);
 333              $params[$arr[1]][$arr[0]] = $rec->value;
 334          }
 335  
 336          return $params;
 337      }
 338  
 339      /**
 340       * Delete this criterion
 341       *
 342       */
 343      public function delete() {
 344          global $DB, $PAGE;
 345  
 346          // Remove any records if it has already been met.
 347          $DB->delete_records('badge_criteria_met', array('critid' => $this->id));
 348  
 349          // Remove all parameters records.
 350          $DB->delete_records('badge_criteria_param', array('critid' => $this->id));
 351  
 352          // Finally remove criterion itself.
 353          $DB->delete_records('badge_criteria', array('id' => $this->id));
 354  
 355          // Trigger event, badge criteria deleted.
 356          $eventparams = array('objectid' => $this->id,
 357              'context' => $PAGE->context,
 358              'other' => array('badgeid' => $this->badgeid));
 359          $event = \core\event\badge_criteria_deleted::create($eventparams);
 360          $event->trigger();
 361      }
 362  
 363      /**
 364       * Saves intial criteria records with required parameters set up.
 365       *
 366       * @param array $params Values from the form or any other array.
 367       */
 368      public function save($params = array()) {
 369          global $DB, $PAGE;
 370  
 371          // Figure out criteria description.
 372          // If it is coming from the form editor, it is an array(text, format).
 373          $description = '';
 374          $descriptionformat = FORMAT_HTML;
 375          if (isset($params['description']['text'])) {
 376              $description = $params['description']['text'];
 377              $descriptionformat = $params['description']['format'];
 378          } else if (isset($params['description'])) {
 379              $description = $params['description'];
 380          }
 381  
 382          $fordb = new stdClass();
 383          $fordb->criteriatype = $this->criteriatype;
 384          $fordb->method = isset($params['agg']) ? $params['agg'] : BADGE_CRITERIA_AGGREGATION_ALL;
 385          $fordb->badgeid = $this->badgeid;
 386          $fordb->description = $description;
 387          $fordb->descriptionformat = $descriptionformat;
 388          $t = $DB->start_delegated_transaction();
 389  
 390          // Pick only params that are required by this criterion.
 391          // Filter out empty values first.
 392          $params = array_filter($params);
 393          // Find out which param matches optional and required ones.
 394          $match = array_merge($this->optional_params, array($this->required_param));
 395          $regex = implode('|', array_map(function($a) {
 396              return $a . "_";
 397          }, $match));
 398          $requiredkeys = preg_grep('/^(' . $regex . ').*$/', array_keys($params));
 399  
 400          if ($this->id !== 0) {
 401              $cid = $this->id;
 402  
 403              // Update criteria before doing anything with parameters.
 404              $fordb->id = $cid;
 405              $DB->update_record('badge_criteria', $fordb, true);
 406  
 407              // Trigger event: badge_criteria_updated.
 408              $eventparams = array('objectid' => $this->id,
 409                  'context' => $PAGE->context,
 410                  'other' => array('badgeid' => $this->badgeid));
 411              $event = \core\event\badge_criteria_updated::create($eventparams);
 412              $event->trigger();
 413  
 414              $existing = $DB->get_fieldset_select('badge_criteria_param', 'name', 'critid = ?', array($cid));
 415              $todelete = array_diff($existing, $requiredkeys);
 416  
 417              if (!empty($todelete)) {
 418                  // A workaround to add some disabled elements that are still being submitted from the form.
 419                  foreach ($todelete as $del) {
 420                      $name = explode('_', $del);
 421                      if ($name[0] == $this->required_param) {
 422                          foreach ($this->optional_params as $opt) {
 423                              $todelete[] = $opt . '_' . $name[1];
 424                          }
 425                      }
 426                  }
 427                  $todelete = array_unique($todelete);
 428                  list($sql, $sqlparams) = $DB->get_in_or_equal($todelete, SQL_PARAMS_NAMED, 'd', true);
 429                  $sqlparams = array_merge(array('critid' => $cid), $sqlparams);
 430                  $DB->delete_records_select('badge_criteria_param', 'critid = :critid AND name ' . $sql, $sqlparams);
 431              }
 432  
 433              foreach ($requiredkeys as $key) {
 434                  if (in_array($key, $existing)) {
 435                      $updp = $DB->get_record('badge_criteria_param', array('name' => $key, 'critid' => $cid));
 436                      $updp->value = $params[$key];
 437                      $DB->update_record('badge_criteria_param', $updp, true);
 438                  } else {
 439                      $newp = new stdClass();
 440                      $newp->critid = $cid;
 441                      $newp->name = $key;
 442                      $newp->value = $params[$key];
 443                      $DB->insert_record('badge_criteria_param', $newp);
 444                  }
 445              }
 446          } else {
 447              $cid = $DB->insert_record('badge_criteria', $fordb, true);
 448              if ($cid) {
 449                  foreach ($requiredkeys as $key) {
 450                      $newp = new stdClass();
 451                      $newp->critid = $cid;
 452                      $newp->name = $key;
 453                      $newp->value = $params[$key];
 454                      $DB->insert_record('badge_criteria_param', $newp, false, true);
 455                  }
 456              }
 457              // Trigger event: badge_criteria_created.
 458              $eventparams = array('objectid' => $this->id,
 459                  'context' => $PAGE->context,
 460                  'other' => array('badgeid' => $this->badgeid));
 461              $event = \core\event\badge_criteria_created::create($eventparams);
 462              $event->trigger();
 463          }
 464          $t->allow_commit();
 465      }
 466  
 467      /**
 468       * Saves intial criteria records with required parameters set up.
 469       */
 470      public function make_clone($newbadgeid) {
 471          global $DB;
 472  
 473          $fordb = new stdClass();
 474          $fordb->criteriatype = $this->criteriatype;
 475          $fordb->method = $this->method;
 476          $fordb->badgeid = $newbadgeid;
 477          $fordb->description = $this->description;
 478          $fordb->descriptionformat = $this->descriptionformat;
 479          if (($newcrit = $DB->insert_record('badge_criteria', $fordb, true)) && isset($this->params)) {
 480              foreach ($this->params as $k => $param) {
 481                  foreach ($param as $key => $value) {
 482                      $paramdb = new stdClass();
 483                      $paramdb->critid = $newcrit;
 484                      $paramdb->name = $key . '_' . $k;
 485                      $paramdb->value = $value;
 486                      $DB->insert_record('badge_criteria_param', $paramdb);
 487                  }
 488              }
 489          }
 490      }
 491  
 492      /**
 493       * Allow some specific criteria types to be disabled based on config.
 494       *
 495       * @return boolean
 496       */
 497      public static function is_enabled() {
 498          return true;
 499      }
 500  }