badges/renderer.php

   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  * Renderer for use with the badges output
  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 require_once($CFG->libdir . '/badgeslib.php');
  28 require_once($CFG->libdir . '/tablelib.php');
  29
  30 /**
  31  * Standard HTML output renderer for badges
  32  */
  33 class core_badges_renderer extends plugin_renderer_base {
  34
  35     // Outputs badges list.
  36     public function print_badges_list($badges, $userid, $profile = false, $external = false) {
  37         global $USER, $CFG;
  38         foreach ($badges as $badge) {
  39             if (!$external) {
  40                 $context = ($badge->type == BADGE_TYPE_SITE) ? context_system::instance() : context_course::instance($badge->courseid);
  41                 $bname = $badge->name;
  42                 $imageurl = moodle_url::make_pluginfile_url($context->id, 'badges', 'badgeimage', $badge->id, '/', 'f1', false);
  43             } else {
  44                 $bname = $badge->assertion->badge->name;
  45                 $imageurl = $badge->imageUrl;
  46             }
  47
  48             $name = html_writer::tag('span', $bname, array('class' => 'badge-name'));
  49
  50             $image = html_writer::empty_tag('img', array('src' => $imageurl, 'class' => 'badge-image'));
  51             if (!empty($badge->dateexpire) && $badge->dateexpire < time()) {
  52                 $image .= $this->output->pix_icon('i/expired',
  53                         get_string('expireddate', 'badges', userdate($badge->dateexpire)),
  54                         'moodle',
  55                         array('class' => 'expireimage'));
  56                 $name .= '(' . get_string('expired', 'badges') . ')';
  57             }
  58
  59             $download = $status = $push = '';
  60             if (($userid == $USER->id) && !$profile) {
  61                 $url = new moodle_url('mybadges.php', array('download' => $badge->id, 'hash' => $badge->uniquehash, 'sesskey' => sesskey()));
  62                 $notexpiredbadge = (empty($badge->dateexpire) || $badge->dateexpire > time());
  63                 $backpackexists = badges_user_has_backpack($USER->id);
  64                 if (!empty($CFG->badges_allowexternalbackpack) && $notexpiredbadge && $backpackexists) {
  65                     $assertion = new moodle_url('/badges/assertion.php', array('b' => $badge->uniquehash));
  66                     $action = new component_action('click', 'addtobackpack', array('assertion' => $assertion->out(false)));
  67                     $push = $this->output->action_icon(new moodle_url('#'), new pix_icon('t/backpack', get_string('addtobackpack', 'badges')), $action);
  68                 }
  69
  70                 $download = $this->output->action_icon($url, new pix_icon('t/download', get_string('download')));
  71                 if ($badge->visible) {
  72                     $url = new moodle_url('mybadges.php', array('hide' => $badge->issuedid, 'sesskey' => sesskey()));
  73                     $status = $this->output->action_icon($url, new pix_icon('t/hide', get_string('makeprivate', 'badges')));
  74                 } else {
  75                     $url = new moodle_url('mybadges.php', array('show' => $badge->issuedid, 'sesskey' => sesskey()));
  76                     $status = $this->output->action_icon($url, new pix_icon('t/show', get_string('makepublic', 'badges')));
  77                 }
  78             }
  79
  80             if (!$profile) {
  81                 $url = new moodle_url('badge.php', array('hash' => $badge->uniquehash));
  82             } else {
  83                 if (!$external) {
  84                     $url = new moodle_url('/badges/badge.php', array('hash' => $badge->uniquehash));
  85                 } else {
  86                     $hash = hash('md5', $badge->hostedUrl);
  87                     $url = new moodle_url('/badges/external.php', array('hash' => $hash, 'user' => $userid));
  88                 }
  89             }
  90             $actions = html_writer::tag('div', $push . $download . $status, array('class' => 'badge-actions'));
  91             $items[] = html_writer::link($url, $image . $actions . $name, array('title' => $bname));
  92         }
  93
  94         return html_writer::alist($items, array('class' => 'badges'));
  95     }
  96
  97     // Recipients selection form.
  98     public function recipients_selection_form(user_selector_base $existinguc, user_selector_base $potentialuc) {
  99         $output = '';
 100         $formattributes = array();
 101         $formattributes['id'] = 'recipientform';
 102         $formattributes['action'] = $this->page->url;
 103         $formattributes['method'] = 'post';
 104         $output .= html_writer::start_tag('form', $formattributes);
 105         $output .= html_writer::empty_tag('input', array('type' => 'hidden', 'name' => 'sesskey', 'value' => sesskey()));
 106
 107         $existingcell = new html_table_cell();
 108         $existingcell->text = $existinguc->display(true);
 109         $existingcell->attributes['class'] = 'existing';
 110         $actioncell = new html_table_cell();
 111         $actioncell->text  = html_writer::start_tag('div', array());
 112         $actioncell->text .= html_writer::empty_tag('input', array(
 113                     'type' => 'submit',
 114                     'name' => 'award',
 115                     'value' => $this->output->larrow() . ' ' . get_string('award', 'badges'),
 116                     'class' => 'actionbutton')
 117                 );
 118         $actioncell->text .= html_writer::end_tag('div', array());
 119         $actioncell->attributes['class'] = 'actions';
 120         $potentialcell = new html_table_cell();
 121         $potentialcell->text = $potentialuc->display(true);
 122         $potentialcell->attributes['class'] = 'potential';
 123
 124         $table = new html_table();
 125         $table->attributes['class'] = 'recipienttable boxaligncenter';
 126         $table->data = array(new html_table_row(array($existingcell, $actioncell, $potentialcell)));
 127         $output .= html_writer::table($table);
 128
 129         $output .= html_writer::end_tag('form');
 130         return $output;
 131     }
 132
 133     // Prints a badge overview infomation.
 134     public function print_badge_overview($badge, $context) {
 135         $display = "";
 136
 137         // Badge details.
 138         $display .= html_writer::start_tag('fieldset', array('class' => 'generalbox'));
 139         $display .= html_writer::tag('legend', get_string('badgedetails', 'badges'), array('class' => 'bold'));
 140
 141         $detailstable = new html_table();
 142         $detailstable->attributes = array('class' => 'clearfix', 'id' => 'badgedetails');
 143         $detailstable->data[] = array(get_string('name') . ":", $badge->name);
 144         $detailstable->data[] = array(get_string('description', 'badges') . ":", $badge->description);
 145         $detailstable->data[] = array(get_string('createdon', 'search') . ":", userdate($badge->timecreated));
 146         $detailstable->data[] = array(get_string('badgeimage', 'badges') . ":",
 147                 print_badge_image($badge, $context, 'large'));
 148         $display .= html_writer::table($detailstable);
 149         $display .= html_writer::end_tag('fieldset');
 150
 151         // Issuer details.
 152         $display .= html_writer::start_tag('fieldset', array('class' => 'generalbox'));
 153         $display .= html_writer::tag('legend', get_string('issuerdetails', 'badges'), array('class' => 'bold'));
 154
 155         $issuertable = new html_table();
 156         $issuertable->attributes = array('class' => 'clearfix', 'id' => 'badgeissuer');
 157         $issuertable->data[] = array(get_string('issuername', 'badges') . ":", $badge->issuername);
 158         $issuertable->data[] = array(get_string('contact', 'badges') . ":",
 159                 html_writer::tag('a', $badge->issuercontact, array('href' => 'mailto:' . $badge->issuercontact)));
 160         $display .= html_writer::table($issuertable);
 161         $display .= html_writer::end_tag('fieldset');
 162
 163         // Issuance details if any.
 164         $display .= html_writer::start_tag('fieldset', array('class' => 'generalbox'));
 165         $display .= html_writer::tag('legend', get_string('issuancedetails', 'badges'), array('class' => 'bold'));
 166         if ($badge->can_expire()) {
 167             if ($badge->expiredate) {
 168                 $display .= get_string('expiredate', 'badges', userdate($badge->expiredate));
 169             } else if ($badge->expireperiod) {
 170                 if ($badge->expireperiod < 60) {
 171                     $display .= get_string('expireperiods', 'badges', round($badge->expireperiod, 2));
 172                 } else if ($badge->expireperiod < 60 * 60) {
 173                     $display .= get_string('expireperiodm', 'badges', round($badge->expireperiod / 60, 2));
 174                 } else if ($badge->expireperiod < 60 * 60 * 24) {
 175                     $display .= get_string('expireperiodh', 'badges', round($badge->expireperiod / 60 / 60, 2));
 176                 } else {
 177                     $display .= get_string('expireperiod', 'badges', round($badge->expireperiod / 60 / 60 / 24, 2));
 178                 }
 179             }
 180         } else {
 181             $display .= get_string('noexpiry', 'badges');
 182         }
 183         $display .= html_writer::end_tag('fieldset');
 184
 185         // Criteria details if any.
 186         $display .= html_writer::start_tag('fieldset', array('class' => 'generalbox'));
 187         $display .= html_writer::tag('legend', get_string('bcriteria', 'badges'), array('class' => 'bold'));
 188         if ($badge->has_criteria()) {
 189             $display .= self::print_badge_criteria($badge);
 190         } else {
 191             $display .= get_string('nocriteria', 'badges');
 192             if (has_capability('moodle/badges:configurecriteria', $context)) {
 193                 $display .= $this->output->single_button(
 194                     new moodle_url('/badges/criteria.php', array('id' => $badge->id)),
 195                     get_string('addcriteria', 'badges'), 'POST', array('class' => 'activatebadge'));
 196             }
 197         }
 198         $display .= html_writer::end_tag('fieldset');
 199
 200         // Awards details if any.
 201         if (has_capability('moodle/badges:viewawarded', $context)) {
 202             $display .= html_writer::start_tag('fieldset', array('class' => 'generalbox'));
 203             $display .= html_writer::tag('legend', get_string('awards', 'badges'), array('class' => 'bold'));
 204             if ($badge->has_awards()) {
 205                 $url = new moodle_url('/badges/recipients.php', array('id' => $badge->id));
 206                 $a = new stdClass();
 207                 $a->link = $url->out();
 208                 $a->count = count($badge->get_awards());
 209                 $display .= get_string('numawards', 'badges', $a);
 210             } else {
 211                 $display .= get_string('noawards', 'badges');
 212             }
 213
 214             if (has_capability('moodle/badges:awardbadge', $context) &&
 215                 $badge->has_manual_award_criteria() &&
 216                 $badge->is_active()) {
 217                 $display .= $this->output->single_button(
 218                         new moodle_url('/badges/award.php', array('id' => $badge->id)),
 219                         get_string('award', 'badges'), 'POST', array('class' => 'activatebadge'));
 220             }
 221             $display .= html_writer::end_tag('fieldset');
 222         }
 223
 224         return $display;
 225     }
 226
 227     // Prints action icons for the badge.
 228     public function print_badge_table_actions($badge, $context) {
 229         $actions = "";
 230
 231         if (has_capability('moodle/badges:configuredetails', $context) && $badge->has_criteria()) {
 232             // Activate/deactivate badge.
 233             if ($badge->status == BADGE_STATUS_INACTIVE || $badge->status == BADGE_STATUS_INACTIVE_LOCKED) {
 234                 // "Activate" will go to another page and ask for confirmation.
 235                 $url = new moodle_url('/badges/action.php');
 236                 $url->param('id', $badge->id);
 237                 $url->param('activate', true);
 238                 $url->param('sesskey', sesskey());
 239                 $return = new moodle_url(qualified_me());
 240                 $url->param('return', $return->out_as_local_url(false));
 241                 $actions .= $this->output->action_icon($url, new pix_icon('t/show', get_string('activate', 'badges'))) . " ";
 242             } else {
 243                 $url = new moodle_url(qualified_me());
 244                 $url->param('lock', $badge->id);
 245                 $url->param('sesskey', sesskey());
 246                 $actions .= $this->output->action_icon($url, new pix_icon('t/hide', get_string('deactivate', 'badges'))) . " ";
 247             }
 248         }
 249
 250         // Award badge manually.
 251         if ($badge->has_manual_award_criteria() &&
 252                 has_capability('moodle/badges:awardbadge', $context) &&
 253                 $badge->is_active()) {
 254             $url = new moodle_url('/badges/award.php', array('id' => $badge->id));
 255             $actions .= $this->output->action_icon($url, new pix_icon('t/award', get_string('award', 'badges'))) . " ";
 256         }
 257
 258         // Edit badge.
 259         if (has_capability('moodle/badges:configuredetails', $context)) {
 260             $url = new moodle_url('/badges/edit.php', array('id' => $badge->id, 'action' => 'details'));
 261             $actions .= $this->output->action_icon($url, new pix_icon('t/edit', get_string('edit'))) . " ";
 262         }
 263
 264         // Duplicate badge.
 265         if (has_capability('moodle/badges:createbadge', $context)) {
 266             $url = new moodle_url('/badges/action.php', array('copy' => '1', 'id' => $badge->id, 'sesskey' => sesskey()));
 267             $actions .= $this->output->action_icon($url, new pix_icon('t/copy', get_string('copy'))) . " ";
 268         }
 269
 270         // Delete badge.
 271         if (has_capability('moodle/badges:deletebadge', $context)) {
 272             $url = new moodle_url(qualified_me());
 273             $url->param('delete', $badge->id);
 274             $actions .= $this->output->action_icon($url, new pix_icon('t/delete', get_string('delete'))) . " ";
 275         }
 276
 277         return $actions;
 278     }
 279
 280     // Outputs issued badge with actions available.
 281     protected function render_issued_badge(issued_badge $ibadge) {
 282         global $USER, $CFG, $DB, $SITE;
 283         $issued = $ibadge->issued;
 284         $userinfo = $ibadge->recipient;
 285         $badgeclass = $ibadge->badgeclass;
 286         $badge = new badge($ibadge->badgeid);
 287         $now = time();
 288
 289         $table = new html_table();
 290         $table->id = 'issued-badge-table';
 291
 292         $imagetable = new html_table();
 293         $imagetable->attributes = array('class' => 'clearfix badgeissuedimage');
 294         $imagetable->data[] = array(html_writer::empty_tag('img', array('src' => $badgeclass['image'])));
 295         if ($USER->id == $userinfo->id && !empty($CFG->enablebadges)) {
 296             $imagetable->data[] = array($this->output->single_button(
 297                         new moodle_url('/badges/badge.php', array('hash' => $issued['uid'], 'bake' => true)),
 298                         get_string('download'),
 299                         'POST'));
 300             $expiration = isset($issued['expires']) ? $issued['expires'] : $now + 86400;
 301             if (!empty($CFG->badges_allowexternalbackpack) && ($expiration > $now) && badges_user_has_backpack($USER->id)) {
 302                 $assertion = new moodle_url('/badges/assertion.php', array('b' => $issued['uid']));
 303                 $action = new component_action('click', 'addtobackpack', array('assertion' => $assertion->out(false)));
 304                 $attributes = array(
 305                         'type'  => 'button',
 306                         'id'    => 'addbutton',
 307                         'value' => get_string('addtobackpack', 'badges'));
 308                 $tobackpack = html_writer::tag('input', '', $attributes);
 309                 $this->output->add_action_handler($action, 'addbutton');
 310                 $imagetable->data[] = array($tobackpack);
 311             }
 312         }
 313         $datatable = new html_table();
 314         $datatable->attributes = array('class' => 'badgeissuedinfo');
 315         $datatable->colclasses = array('bfield', 'bvalue');
 316
 317         // Recipient information.
 318         $datatable->data[] = array($this->output->heading(get_string('recipientdetails', 'badges'), 3), '');
 319         if ($userinfo->deleted) {
 320             $strdata = new stdClass();
 321             $strdata->user = fullname($userinfo);
 322             $strdata->site = format_string($SITE->fullname, true, array('context' => context_system::instance()));
 323             $datatable->data[] = array(get_string('name'), get_string('error:userdeleted', 'badges', $strdata));
 324         } else {
 325             $datatable->data[] = array(get_string('name'), fullname($userinfo));
 326             if (empty($userinfo->backpackemail)) {
 327                 $datatable->data[] = array(get_string('email'), obfuscate_mailto($userinfo->accountemail));
 328             } else {
 329                 $datatable->data[] = array(get_string('email'), obfuscate_mailto($userinfo->backpackemail));
 330             }
 331         }
 332
 333         $datatable->data[] = array($this->output->heading(get_string('issuerdetails', 'badges'), 3), '');
 334         $datatable->data[] = array(get_string('issuername', 'badges'), $badge->issuername);
 335         if (isset($badge->issuercontact) && !empty($badge->issuercontact)) {
 336             $datatable->data[] = array(get_string('contact', 'badges'), obfuscate_mailto($badge->issuercontact));
 337         }
 338         $datatable->data[] = array($this->output->heading(get_string('badgedetails', 'badges'), 3), '');
 339         $datatable->data[] = array(get_string('name'), $badge->name);
 340         $datatable->data[] = array(get_string('description', 'badges'), $badge->description);
 341
 342         if ($badge->type == BADGE_TYPE_COURSE && isset($badge->courseid)) {
 343             $coursename = $DB->get_field('course', 'fullname', array('id' => $badge->courseid));
 344             $datatable->data[] = array(get_string('course'), $coursename);
 345         }
 346
 347         $datatable->data[] = array(get_string('bcriteria', 'badges'), self::print_badge_criteria($badge));
 348         $datatable->data[] = array($this->output->heading(get_string('issuancedetails', 'badges'), 3), '');
 349         $datatable->data[] = array(get_string('dateawarded', 'badges'), userdate($issued['issuedOn']));
 350         if (isset($issued['expires'])) {
 351             if ($issued['expires'] < $now) {
 352                 $cell = new html_table_cell(userdate($issued['expires']) . get_string('warnexpired', 'badges'));
 353                 $cell->attributes = array('class' => 'notifyproblem warning');
 354                 $datatable->data[] = array(get_string('expirydate', 'badges'), $cell);
 355
 356                 $image = html_writer::start_tag('div', array('class' => 'badge'));
 357                 $image .= html_writer::empty_tag('img', array('src' => $badgeclass['image']));
 358                 $image .= $this->output->pix_icon('i/expired',
 359                                 get_string('expireddate', 'badges', userdate($issued['expires'])),
 360                                 'moodle',
 361                                 array('class' => 'expireimage'));
 362                 $image .= html_writer::end_tag('div');
 363                 $imagetable->data[0] = array($image);
 364             } else {
 365                 $datatable->data[] = array(get_string('expirydate', 'badges'), userdate($issued['expires']));
 366             }
 367         }
 368
 369         // Print evidence.
 370         $agg = $badge->get_aggregation_methods();
 371         $evidence = $badge->get_criteria_completions($userinfo->id);
 372         $eids = array_map(create_function('$o', 'return $o->critid;'), $evidence);
 373         unset($badge->criteria[BADGE_CRITERIA_TYPE_OVERALL]);
 374
 375         $items = array();
 376         foreach ($badge->criteria as $type => $c) {
 377             if (in_array($c->id, $eids)) {
 378                 if (count($c->params) == 1) {
 379                     $items[] = get_string('criteria_descr_single_' . $type , 'badges') . $c->get_details();
 380                 } else {
 381                     $items[] = get_string('criteria_descr_' . $type , 'badges',
 382                             strtoupper($agg[$badge->get_aggregation_method($type)])) . $c->get_details();
 383                 }
 384             }
 385         }
 386
 387         $datatable->data[] = array(get_string('evidence', 'badges'),
 388                 get_string('completioninfo', 'badges') .
 389                 html_writer::alist($items, array(), 'ul'));
 390         $table->attributes = array('class' => 'generalbox boxaligncenter issuedbadgebox');
 391         $table->data[] = array(html_writer::table($imagetable), html_writer::table($datatable));
 392         $htmlbadge = html_writer::table($table);
 393
 394         return $htmlbadge;
 395     }
 396
 397     // Outputs external badge.
 398     protected function render_external_badge(external_badge $ibadge) {
 399         $issued = $ibadge->issued;
 400         $assertion = $issued->assertion;
 401         $issuer = $assertion->badge->issuer;
 402         $userinfo = $ibadge->recipient;
 403         $table = new html_table();
 404
 405         $imagetable = new html_table();
 406         $imagetable->attributes = array('class' => 'clearfix badgeissuedimage');
 407         $imagetable->data[] = array(html_writer::empty_tag('img', array('src' => $issued->imageUrl, 'width' => '100px')));
 408
 409         $datatable = new html_table();
 410         $datatable->attributes = array('class' => 'badgeissuedinfo');
 411         $datatable->colclasses = array('bfield', 'bvalue');
 412
 413         // Recipient information.
 414         $datatable->data[] = array($this->output->heading(get_string('recipientdetails', 'badges'), 3), '');
 415         // Technically, we should alway have a user at this point, but added an extra check just in case.
 416         if ($userinfo) {
 417             $datatable->data[] = array(get_string('name'), fullname($userinfo));
 418             if (!$ibadge->valid) {
 419                 $notify = $this->output->notification(get_string('recipientvalidationproblem', 'badges'), 'notifynotice');
 420                 $datatable->data[] = array(get_string('email'), obfuscate_mailto($userinfo->email) . $notify);
 421             } else {
 422                 $datatable->data[] = array(get_string('email'), obfuscate_mailto($userinfo->email));
 423             }
 424         } else {
 425             $notify = $this->output->notification(get_string('recipientidentificationproblem', 'badges'), 'notifynotice');
 426             $datatable->data[] = array(get_string('name'), $notify);
 427         }
 428
 429         $datatable->data[] = array($this->output->heading(get_string('issuerdetails', 'badges'), 3), '');
 430         $datatable->data[] = array(get_string('issuername', 'badges'), $issuer->name);
 431         $datatable->data[] = array(get_string('issuerurl', 'badges'),
 432                 html_writer::tag('a', $issuer->origin, array('href' => $issuer->origin)));
 433         if (isset($issuer->contact)) {
 434             $datatable->data[] = array(get_string('contact', 'badges'), obfuscate_mailto($issuer->contact));
 435         }
 436         $datatable->data[] = array($this->output->heading(get_string('badgedetails', 'badges'), 3), '');
 437         $datatable->data[] = array(get_string('name'), $assertion->badge->name);
 438         $datatable->data[] = array(get_string('description', 'badges'), $assertion->badge->description);
 439         $datatable->data[] = array(get_string('bcriteria', 'badges'),
 440                 html_writer::tag('a', $assertion->badge->criteria, array('href' => $assertion->badge->criteria)));
 441         $datatable->data[] = array($this->output->heading(get_string('issuancedetails', 'badges'), 3), '');
 442         if (isset($assertion->issued_on)) {
 443             $datatable->data[] = array(get_string('dateawarded', 'badges'), $assertion->issued_on);
 444         }
 445         if (isset($assertion->badge->expire)) {
 446             $today_date = date('Y-m-d');
 447             $today = strtotime($today_date);
 448             $expiration = strtotime($assertion->badge->expire);
 449             if ($expiration < $today) {
 450                 $cell = new html_table_cell($assertion->badge->expire . get_string('warnexpired', 'badges'));
 451                 $cell->attributes = array('class' => 'notifyproblem warning');
 452                 $datatable->data[] = array(get_string('expirydate', 'badges'), $cell);
 453
 454                 $image = html_writer::start_tag('div', array('class' => 'badge'));
 455                 $image .= html_writer::empty_tag('img', array('src' => $issued['badge']['image']));
 456                 $image .= html_writer::start_tag('span', array('class' => 'expired'))
 457                             . $this->output->pix_icon('i/expired',
 458                                 get_string('expireddate', 'badges', $assertion->badge->expire),
 459                                 'moodle',
 460                                 array('class' => 'expireimage'))
 461                             . html_writer::end_tag('span');
 462                 $image .= html_writer::end_tag('div');
 463                 $imagetable->data[0] = array($image);
 464             } else {
 465                 $datatable->data[] = array(get_string('expirydate', 'badges'), $assertion->badge->expire);
 466             }
 467         }
 468         if (isset($assertion->evidence)) {
 469             $datatable->data[] = array(get_string('evidence', 'badges'),
 470                 html_writer::tag('a', $assertion->evidence, array('href' => $assertion->evidence)));
 471         }
 472         $table->attributes = array('class' => 'generalbox boxaligncenter issuedbadgebox');
 473         $table->data[] = array(html_writer::table($imagetable), html_writer::table($datatable));
 474         $htmlbadge = html_writer::table($table);
 475
 476         return $htmlbadge;
 477     }
 478
 479     // Outputs table of user badges.
 480     protected function render_badge_user_collection(badge_user_collection $badges) {
 481         global $CFG, $USER, $SITE;
 482         $backpack = $badges->backpack;
 483         $mybackpack = new moodle_url('/badges/mybackpack.php');
 484
 485         $paging = new paging_bar($badges->totalcount, $badges->page, $badges->perpage, $this->page->url, 'page');
 486         $htmlpagingbar = $this->render($paging);
 487
 488         // Set backpack connection string.
 489         $backpackconnect = '';
 490         if (!empty($CFG->badges_allowexternalbackpack) && is_null($backpack)) {
 491             $backpackconnect = $this->output->box(get_string('localconnectto', 'badges', $mybackpack->out()), 'noticebox');
 492         }
 493         // Search box.
 494         $searchform = $this->output->box($this->helper_search_form($badges->search), 'boxwidthwide boxaligncenter');
 495
 496         // Download all button.
 497         $downloadall = $this->output->single_button(
 498                     new moodle_url('/badges/mybadges.php', array('downloadall' => true, 'sesskey' => sesskey())),
 499                     get_string('downloadall'), 'POST', array('class' => 'activatebadge'));
 500
 501         // Local badges.
 502         $localhtml = html_writer::start_tag('fieldset', array('id' => 'issued-badge-table', 'class' => 'generalbox'));
 503         $heading = get_string('localbadges', 'badges', format_string($SITE->fullname, true, array('context' => context_system::instance())));
 504         $localhtml .= html_writer::tag('legend', $this->output->heading_with_help($heading, 'localbadgesh', 'badges'));
 505         if ($badges->badges) {
 506             $table = new html_table();
 507             $table->attributes['class'] = 'statustable';
 508             $table->data[] = array($this->output->heading(get_string('badgesearned', 'badges', $badges->totalcount), 4, 'activatebadge'), $downloadall);
 509             $downloadbutton = html_writer::table($table);
 510
 511             $htmllist = $this->print_badges_list($badges->badges, $USER->id);
 512             $localhtml .= $backpackconnect . $downloadbutton . $searchform . $htmlpagingbar . $htmllist . $htmlpagingbar;
 513         } else {
 514             $localhtml .= $searchform . $this->output->notification(get_string('nobadges', 'badges'));
 515         }
 516         $localhtml .= html_writer::end_tag('fieldset');
 517
 518         // External badges.
 519         $externalhtml = "";
 520         if (!empty($CFG->badges_allowexternalbackpack)) {
 521             $externalhtml .= html_writer::start_tag('fieldset', array('class' => 'generalbox'));
 522             $externalhtml .= html_writer::tag('legend', $this->output->heading_with_help(get_string('externalbadges', 'badges'), 'externalbadges', 'badges'));
 523             if (!is_null($backpack)) {
 524                 if ($backpack->totalcollections == 0) {
 525                     $externalhtml .= get_string('nobackpackcollections', 'badges', $backpack);
 526                 } else {
 527                     if ($backpack->totalbadges == 0) {
 528                         $externalhtml .= get_string('nobackpackbadges', 'badges', $backpack);
 529                     } else {
 530                         $externalhtml .= get_string('backpackbadges', 'badges', $backpack);
 531                         $externalhtml .= '<br/><br/>' . $this->print_badges_list($backpack->badges, $USER->id, true, true);
 532                     }
 533                 }
 534             } else {
 535                 $externalhtml .= get_string('externalconnectto', 'badges', $mybackpack->out());
 536             }
 537
 538             $externalhtml .= html_writer::end_tag('fieldset');
 539         }
 540
 541         return $localhtml . $externalhtml;
 542     }
 543
 544     // Outputs table of available badges.
 545     protected function render_badge_collection(badge_collection $badges) {
 546         $paging = new paging_bar($badges->totalcount, $badges->page, $badges->perpage, $this->page->url, 'page');
 547         $htmlpagingbar = $this->render($paging);
 548         $table = new html_table();
 549         $table->attributes['class'] = 'collection';
 550
 551         $sortbyname = $this->helper_sortable_heading(get_string('name'),
 552                 'name', $badges->sort, $badges->dir);
 553         $sortbyawarded = $this->helper_sortable_heading(get_string('awardedtoyou', 'badges'),
 554                 'dateissued', $badges->sort, $badges->dir);
 555         $table->head = array(
 556                     get_string('badgeimage', 'badges'),
 557                     $sortbyname,
 558                     get_string('description', 'badges'),
 559                     get_string('bcriteria', 'badges'),
 560                     $sortbyawarded
 561                 );
 562         $table->colclasses = array('badgeimage', 'name', 'description', 'criteria', 'awards');
 563
 564         foreach ($badges->badges as $badge) {
 565             $badgeimage = print_badge_image($badge, $this->page->context, 'large');
 566             $name = $badge->name;
 567             $description = $badge->description;
 568             $criteria = self::print_badge_criteria($badge);
 569             if ($badge->dateissued) {
 570                 $icon = new pix_icon('i/valid',
 571                             get_string('dateearned', 'badges',
 572                                 userdate($badge->dateissued, get_string('strftimedatefullshort', 'core_langconfig'))));
 573                 $badgeurl = new moodle_url('/badges/badge.php', array('hash' => $badge->uniquehash));
 574                 $awarded = $this->output->action_icon($badgeurl, $icon, null, null, true);
 575             } else {
 576                 $awarded = "";
 577             }
 578             $row = array($badgeimage, $name, $description, $criteria, $awarded);
 579             $table->data[] = $row;
 580         }
 581
 582         $htmltable = html_writer::table($table);
 583
 584         return $htmlpagingbar . $htmltable . $htmlpagingbar;
 585     }
 586
 587     // Outputs table of badges with actions available.
 588     protected function render_badge_management(badge_management $badges) {
 589         $paging = new paging_bar($badges->totalcount, $badges->page, $badges->perpage, $this->page->url, 'page');
 590
 591         // New badge button.
 592         $htmlnew = '';
 593         if (has_capability('moodle/badges:createbadge', $this->page->context)) {
 594             $n['type'] = $this->page->url->get_param('type');
 595             $n['id'] = $this->page->url->get_param('id');
 596             $htmlnew = $this->output->single_button(new moodle_url('newbadge.php', $n), get_string('newbadge', 'badges'));
 597         }
 598
 599         $htmlpagingbar = $this->render($paging);
 600         $table = new html_table();
 601         $table->attributes['class'] = 'collection';
 602
 603         $sortbyname = $this->helper_sortable_heading(get_string('name'),
 604                 'name', $badges->sort, $badges->dir);
 605         $sortbystatus = $this->helper_sortable_heading(get_string('status', 'badges'),
 606                 'status', $badges->sort, $badges->dir);
 607         $table->head = array(
 608                 $sortbyname,
 609                 $sortbystatus,
 610                 get_string('bcriteria', 'badges'),
 611                 get_string('awards', 'badges'),
 612                 get_string('actions')
 613             );
 614         $table->colclasses = array('name', 'status', 'criteria', 'awards', 'actions');
 615
 616         foreach ($badges->badges as $b) {
 617             $style = !$b->is_active() ? array('class' => 'dimmed') : array();
 618             $forlink =  print_badge_image($b, $this->page->context) . ' ' .
 619                         html_writer::start_tag('span') . $b->name . html_writer::end_tag('span');
 620             $name = html_writer::link(new moodle_url('/badges/overview.php', array('id' => $b->id)), $forlink, $style);
 621             $status = $b->statstring;
 622             $criteria = self::print_badge_criteria($b, 'short');
 623
 624             if (has_capability('moodle/badges:viewawarded', $this->page->context)) {
 625                 $awards = html_writer::link(new moodle_url('/badges/recipients.php', array('id' => $b->id)), $b->awards);
 626             } else {
 627                 $awards = $b->awards;
 628             }
 629
 630             $actions = self::print_badge_table_actions($b, $this->page->context);
 631
 632             $row = array($name, $status, $criteria, $awards, $actions);
 633             $table->data[] = $row;
 634         }
 635         $htmltable = html_writer::table($table);
 636
 637         return $htmlnew . $htmlpagingbar . $htmltable . $htmlpagingbar;
 638     }
 639
 640     // Prints tabs for badge editing.
 641     public function print_badge_tabs($badgeid, $context, $current = 'overview') {
 642         global $DB;
 643
 644         $row = array();
 645
 646         $row[] = new tabobject('overview',
 647                     new moodle_url('/badges/overview.php', array('id' => $badgeid)),
 648                     get_string('boverview', 'badges')
 649                 );
 650
 651         if (has_capability('moodle/badges:configuredetails', $context)) {
 652             $row[] = new tabobject('details',
 653                         new moodle_url('/badges/edit.php', array('id' => $badgeid, 'action' => 'details')),
 654                         get_string('bdetails', 'badges')
 655                     );
 656         }
 657
 658         if (has_capability('moodle/badges:configurecriteria', $context)) {
 659             $row[] = new tabobject('criteria',
 660                         new moodle_url('/badges/criteria.php', array('id' => $badgeid)),
 661                         get_string('bcriteria', 'badges')
 662                     );
 663         }
 664
 665         if (has_capability('moodle/badges:configuremessages', $context)) {
 666             $row[] = new tabobject('message',
 667                         new moodle_url('/badges/edit.php', array('id' => $badgeid, 'action' => 'message')),
 668                         get_string('bmessage', 'badges')
 669                     );
 670         }
 671
 672         if (has_capability('moodle/badges:viewawarded', $context)) {
 673             $awarded = $DB->count_records_sql('SELECT COUNT(b.userid)
 674                                                FROM {badge_issued} b INNER JOIN {user} u ON b.userid = u.id
 675                                                WHERE b.badgeid = :badgeid AND u.deleted = 0', array('badgeid' => $badgeid));
 676             $row[] = new tabobject('awards',
 677                         new moodle_url('/badges/recipients.php', array('id' => $badgeid)),
 678                         get_string('bawards', 'badges', $awarded)
 679                     );
 680         }
 681
 682         echo $this->tabtree($row, $current);
 683     }
 684
 685     /**
 686      * Prints badge status box.
 687      * @return Either the status box html as a string or null
 688      */
 689     public function print_badge_status_box(badge $badge) {
 690         if (has_capability('moodle/badges:configurecriteria', $badge->get_context())) {
 691             $table = new html_table();
 692             $table->attributes['class'] = 'boxaligncenter statustable';
 693
 694             if (!$badge->has_criteria()) {
 695                 $criteriaurl = new moodle_url('/badges/criteria.php', array('id' => $badge->id));
 696                 $status = get_string('nocriteria', 'badges');
 697                 if ($this->page->url != $criteriaurl) {
 698                     $action = $this->output->single_button(
 699                         $criteriaurl,
 700                         get_string('addcriteria', 'badges'), 'POST', array('class' => 'activatebadge'));
 701                 } else {
 702                     $action = '';
 703                 }
 704                 $row = array($status, $action);
 705             } else {
 706                 $status = get_string('statusmessage_' . $badge->status, 'badges');
 707                 if ($badge->is_active()) {
 708                     $action = $this->output->single_button(new moodle_url('/badges/action.php',
 709                                 array('id' => $badge->id, 'lock' => 1, 'sesskey' => sesskey(),
 710                                       'return' => $this->page->url->out_as_local_url(false))),
 711                             get_string('deactivate', 'badges'), 'POST', array('class' => 'activatebadge'));
 712                 } else {
 713                     $action = $this->output->single_button(new moodle_url('/badges/action.php',
 714                                 array('id' => $badge->id, 'activate' => 1, 'sesskey' => sesskey(),
 715                                       'return' => $this->page->url->out_as_local_url(false))),
 716                             get_string('activate', 'badges'), 'POST', array('class' => 'activatebadge'));
 717                 }
 718                 $row = array($status . $this->output->help_icon('status', 'badges'), $action);
 719             }
 720             $table->data[] = $row;
 721
 722             $style = $badge->is_active() ? 'generalbox statusbox active' : 'generalbox statusbox inactive';
 723             return $this->output->box(html_writer::table($table), $style);
 724         }
 725
 726         return null;
 727     }
 728
 729     // Prints badge criteria.
 730     public function print_badge_criteria(badge $badge, $short = '') {
 731         $output = "";
 732         $agg = $badge->get_aggregation_methods();
 733         if (empty($badge->criteria)) {
 734             return get_string('nocriteria', 'badges');
 735         } else if (count($badge->criteria) == 2) {
 736             if (!$short) {
 737                 $output .= get_string('criteria_descr', 'badges');
 738             }
 739         } else {
 740             $output .= get_string('criteria_descr_' . $short . BADGE_CRITERIA_TYPE_OVERALL, 'badges',
 741                                     strtoupper($agg[$badge->get_aggregation_method()]));
 742         }
 743         $items = array();
 744         unset($badge->criteria[BADGE_CRITERIA_TYPE_OVERALL]);
 745         foreach ($badge->criteria as $type => $c) {
 746             if (count($c->params) == 1) {
 747                 $items[] = get_string('criteria_descr_single_' . $short . $type , 'badges') . $c->get_details($short);
 748             } else {
 749                 $items[] = get_string('criteria_descr_' . $short . $type , 'badges',
 750                         strtoupper($agg[$badge->get_aggregation_method($type)])) . $c->get_details($short);
 751             }
 752         }
 753         $output .= html_writer::alist($items, array(), 'ul');
 754         return $output;
 755     }
 756
 757     // Prints criteria actions for badge editing.
 758     public function print_criteria_actions(badge $badge) {
 759         $table = new html_table();
 760         $table->attributes = array('class' => 'boxaligncenter', 'id' => 'badgeactions');
 761         $table->colclasses = array('activatebadge');
 762
 763         $actions = array();
 764         if (!$badge->is_active() && !$badge->is_locked()) {
 765             $accepted = $badge->get_accepted_criteria();
 766             $potential = array_diff($accepted, array_keys($badge->criteria));
 767
 768             if (!empty($potential)) {
 769                 foreach ($potential as $p) {
 770                     if ($p != 0) {
 771                         $select[$p] = get_string('criteria_' . $p, 'badges');
 772                     }
 773                 }
 774                 $actions[] = get_string('addbadgecriteria', 'badges');
 775                 $actions[] = $this->output->single_select(new moodle_url('/badges/criteria_settings.php',
 776                         array('badgeid' => $badge->id, 'add' => true)), 'type', $select);
 777             } else {
 778                 $actions[] = $this->output->box(get_string('nothingtoadd', 'badges'), 'clearfix');
 779             }
 780         }
 781
 782         $table->data[] = $actions;
 783         return html_writer::table($table);
 784     }
 785
 786     // Renders a table with users who have earned the badge.
 787     // Based on stamps collection plugin.
 788     protected function render_badge_recipients(badge_recipients $recipients) {
 789         $paging = new paging_bar($recipients->totalcount, $recipients->page, $recipients->perpage, $this->page->url, 'page');
 790         $htmlpagingbar = $this->render($paging);
 791         $table = new html_table();
 792         $table->attributes['class'] = 'generaltable boxaligncenter boxwidthwide';
 793
 794         $sortbyfirstname = $this->helper_sortable_heading(get_string('firstname'),
 795                 'firstname', $recipients->sort, $recipients->dir);
 796         $sortbylastname = $this->helper_sortable_heading(get_string('lastname'),
 797                 'lastname', $recipients->sort, $recipients->dir);
 798         if ($this->helper_fullname_format() == 'lf') {
 799             $sortbyname = $sortbylastname . ' / ' . $sortbyfirstname;
 800         } else {
 801             $sortbyname = $sortbyfirstname . ' / ' . $sortbylastname;
 802         }
 803
 804         $sortbydate = $this->helper_sortable_heading(get_string('dateawarded', 'badges'),
 805                 'dateissued', $recipients->sort, $recipients->dir);
 806
 807         $table->head = array($sortbyname, $sortbydate, '');
 808
 809         foreach ($recipients->userids as $holder) {
 810             $fullname = fullname($holder);
 811             $fullname = html_writer::link(
 812                             new moodle_url('/user/profile.php', array('id' => $holder->userid)),
 813                             $fullname
 814                         );
 815             $awarded  = userdate($holder->dateissued);
 816             $badgeurl = html_writer::link(
 817                             new moodle_url('/badges/badge.php', array('hash' => $holder->uniquehash)),
 818                             get_string('viewbadge', 'badges')
 819                         );
 820
 821             $row = array($fullname, $awarded, $badgeurl);
 822             $table->data[] = $row;
 823         }
 824
 825         $htmltable = html_writer::table($table);
 826
 827         return $htmlpagingbar . $htmltable . $htmlpagingbar;
 828     }
 829
 830     ////////////////////////////////////////////////////////////////////////////
 831     // Helper methods
 832     // Reused from stamps collection plugin
 833     ////////////////////////////////////////////////////////////////////////////
 834
 835     /**
 836      * Renders a text with icons to sort by the given column
 837      *
 838      * This is intended for table headings.
 839      *
 840      * @param string $text    The heading text
 841      * @param string $sortid  The column id used for sorting
 842      * @param string $sortby  Currently sorted by (column id)
 843      * @param string $sorthow Currently sorted how (ASC|DESC)
 844      *
 845      * @return string
 846      */
 847     protected function helper_sortable_heading($text, $sortid = null, $sortby = null, $sorthow = null) {
 848         $out = html_writer::tag('span', $text, array('class' => 'text'));
 849
 850         if (!is_null($sortid)) {
 851             if ($sortby !== $sortid || $sorthow !== 'ASC') {
 852                 $url = new moodle_url($this->page->url);
 853                 $url->params(array('sort' => $sortid, 'dir' => 'ASC'));
 854                 $out .= $this->output->action_icon($url,
 855                         new pix_icon('t/sort_asc', get_string('sortbyx', 'core', s($text)), null, array('class' => 'iconsort')));
 856             }
 857             if ($sortby !== $sortid || $sorthow !== 'DESC') {
 858                 $url = new moodle_url($this->page->url);
 859                 $url->params(array('sort' => $sortid, 'dir' => 'DESC'));
 860                 $out .= $this->output->action_icon($url,
 861                         new pix_icon('t/sort_desc', get_string('sortbyxreverse', 'core', s($text)), null, array('class' => 'iconsort')));
 862             }
 863         }
 864         return $out;
 865     }
 866     /**
 867      * Tries to guess the fullname format set at the site
 868      *
 869      * @return string fl|lf
 870      */
 871     protected function helper_fullname_format() {
 872         $fake = new stdClass();
 873         $fake->lastname = 'LLLL';
 874         $fake->firstname = 'FFFF';
 875         $fullname = get_string('fullnamedisplay', '', $fake);
 876         if (strpos($fullname, 'LLLL') < strpos($fullname, 'FFFF')) {
 877             return 'lf';
 878         } else {
 879             return 'fl';
 880         }
 881     }
 882     /**
 883      * Renders a search form
 884      *
 885      * @param string $search Search string
 886      * @return string HTML
 887      */
 888     protected function helper_search_form($search) {
 889         global $CFG;
 890         require_once($CFG->libdir . '/formslib.php');
 891
 892         $mform = new MoodleQuickForm('searchform', 'POST', $this->page->url);
 893
 894         $mform->addElement('hidden', 'sesskey', sesskey());
 895
 896         $el[] = $mform->createElement('text', 'search', get_string('search'), array('size' => 20));
 897         $mform->setDefault('search', $search);
 898         $el[] = $mform->createElement('submit', 'submitsearch', get_string('search'));
 899         $el[] = $mform->createElement('submit', 'clearsearch', get_string('clear'));
 900         $mform->addGroup($el, 'searchgroup', get_string('searchname', 'badges'), ' ', false);
 901
 902         ob_start();
 903         $mform->display();
 904         $out = ob_get_clean();
 905
 906         return $out;
 907     }
 908 }
 909
 910 /**
 911  * An issued badges for badge.php page
 912  */
 913 class issued_badge implements renderable {
 914     /** @var issued badge */
 915     public $issued;
 916
 917     /** @var badge recipient */
 918     public $recipient;
 919
 920     /** @var badge class */
 921     public $badgeclass;
 922
 923     /** @var badge visibility to others */
 924     public $visible = 0;
 925
 926     /** @var badge class */
 927     public $badgeid = 0;
 928
 929     /**
 930      * Initializes the badge to display
 931      *
 932      * @param string $hash Issued badge hash
 933      */
 934     public function __construct($hash) {
 935         global $DB;
 936
 937         $assertion = new core_badges_assertion($hash);
 938         $this->issued = $assertion->get_badge_assertion();
 939         $this->badgeclass = $assertion->get_badge_class();
 940
 941         $rec = $DB->get_record_sql('SELECT userid, visible, badgeid
 942                 FROM {badge_issued}
 943                 WHERE ' . $DB->sql_compare_text('uniquehash', 40) . ' = ' . $DB->sql_compare_text(':hash', 40),
 944                 array('hash' => $hash), IGNORE_MISSING);
 945         if ($rec) {
 946             // Get a recipient from database.
 947             $namefields = get_all_user_name_fields(true, 'u');
 948             $user = $DB->get_record_sql("SELECT u.id, $namefields, u.deleted,
 949                                                 u.email AS accountemail, b.email AS backpackemail
 950                         FROM {user} u LEFT JOIN {badge_backpack} b ON u.id = b.userid
 951                         WHERE u.id = :userid", array('userid' => $rec->userid));
 952             $this->recipient = $user;
 953             $this->visible = $rec->visible;
 954             $this->badgeid = $rec->badgeid;
 955         }
 956     }
 957 }
 958
 959 /**
 960  * An external badges for external.php page
 961  */
 962 class external_badge implements renderable {
 963     /** @var issued badge */
 964     public $issued;
 965
 966     /** @var User ID */
 967     public $recipient;
 968
 969     /** @var validation of external badge */
 970     public $valid = true;
 971
 972     /**
 973      * Initializes the badge to display
 974      *
 975      * @param object $badge External badge information.
 976      * @param int $recipient User id.
 977      */
 978     public function __construct($badge, $recipient) {
 979         global $DB;
 980         // At this point a user has connected a backpack. So, we are going to get
 981         // their backpack email rather than their account email.
 982         $user = $DB->get_record_sql('SELECT u.lastname, u.firstname, b.email
 983                     FROM {user} u INNER JOIN {badge_backpack} b ON u.id = b.userid
 984                     WHERE userid = :userid', array('userid' => $recipient), IGNORE_MISSING);
 985
 986         $this->issued = $badge;
 987         $this->recipient = $user;
 988
 989         // Check if recipient is valid.
 990         // There is no way to be 100% sure that a badge belongs to a user.
 991         // Backpack does not return any recipient information.
 992         // All we can do is compare that backpack email hashed using salt
 993         // provided in the assertion matches a badge recipient from the assertion.
 994         if ($user) {
 995             if (validate_email($badge->assertion->recipient) && $badge->assertion->recipient == $user->email) {
 996                 // If we have email, compare emails.
 997                 $this->valid = true;
 998             } else if ($badge->assertion->recipient == 'sha256$' . hash('sha256', $user->email)) {
 999                 // If recipient is hashed, but no salt, compare hashes without salt.
1000                 $this->valid = true;
1001             } else if ($badge->assertion->recipient == 'sha256$' . hash('sha256', $user->email . $badge->assertion->salt)) {
1002                 // If recipient is hashed, compare hashes.
1003                 $this->valid = true;
1004             } else {
1005                 // Otherwise, we cannot be sure that this user is a recipient.
1006                 $this->valid = false;
1007             }
1008         } else {
1009             $this->valid = false;
1010         }
1011     }
1012 }
1013
1014 /**
1015  * Badge recipients rendering class
1016  */
1017 class badge_recipients implements renderable {
1018     /** @var string how are the data sorted */
1019     public $sort = 'lastname';
1020
1021     /** @var string how are the data sorted */
1022     public $dir = 'ASC';
1023
1024     /** @var int page number to display */
1025     public $page = 0;
1026
1027     /** @var int number of badge recipients to display per page */
1028     public $perpage = 30;
1029
1030     /** @var int the total number or badge recipients to display */
1031     public $totalcount = null;
1032
1033     /** @var array internal list of  badge recipients ids */
1034     public $userids = array();
1035     /**
1036      * Initializes the list of users to display
1037      *
1038      * @param array $holders List of badge holders
1039      */
1040     public function __construct($holders) {
1041         $this->userids = $holders;
1042     }
1043 }
1044
1045 /**
1046  * Collection of all badges for view.php page
1047  */
1048 class badge_collection implements renderable {
1049
1050     /** @var string how are the data sorted */
1051     public $sort = 'name';
1052
1053     /** @var string how are the data sorted */
1054     public $dir = 'ASC';
1055
1056     /** @var int page number to display */
1057     public $page = 0;
1058
1059     /** @var int number of badges to display per page */
1060     public $perpage = BADGE_PERPAGE;
1061
1062     /** @var int the total number of badges to display */
1063     public $totalcount = null;
1064
1065     /** @var array list of badges */
1066     public $badges = array();
1067
1068     /**
1069      * Initializes the list of badges to display
1070      *
1071      * @param array $badges Badges to render
1072      */
1073     public function __construct($badges) {
1074         $this->badges = $badges;
1075     }
1076 }
1077
1078 /**
1079  * Collection of badges used at the index.php page
1080  */
1081 class badge_management extends badge_collection implements renderable {
1082 }
1083
1084 /**
1085  * Collection of user badges used at the mybadges.php page
1086  */
1087 class badge_user_collection extends badge_collection implements renderable {
1088     /** @var array backpack settings */
1089     public $backpack = null;
1090
1091     /** @var string search */
1092     public $search = '';
1093
1094     /**
1095      * Initializes user badge collection.
1096      *
1097      * @param array $badges Badges to render
1098      * @param int $userid Badges owner
1099      */
1100     public function __construct($badges, $userid) {
1101         global $CFG;
1102         parent::__construct($badges);
1103
1104         if (!empty($CFG->badges_allowexternalbackpack)) {
1105             $this->backpack = get_backpack_settings($userid, true);
1106         }
1107     }
1108 }