admin/registration/forms.php

   1 <?php
   2
   3 ///////////////////////////////////////////////////////////////////////////
   4 //                                                                       //
   5 // This file is part of Moodle - http://moodle.org/                      //
   6 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   7 //                                                                       //
   8 // Moodle is free software: you can redistribute it and/or modify        //
   9 // it under the terms of the GNU General Public License as published by  //
  10 // the Free Software Foundation, either version 3 of the License, or     //
  11 // (at your option) any later version.                                   //
  12 //                                                                       //
  13 // Moodle is distributed in the hope that it will be useful,             //
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  16 // GNU General Public License for more details.                          //
  17 //                                                                       //
  18 // You should have received a copy of the GNU General Public License     //
  19 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.       //
  20 //                                                                       //
  21 ///////////////////////////////////////////////////////////////////////////
  22
  23 /*
  24  * @package    moodle
  25  * @subpackage registration
  26  * @author     Jerome Mouneyrac <jerome@mouneyrac.com>
  27  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL
  28  * @copyright  (C) 1999 onwards Martin Dougiamas  http://dougiamas.com
  29  *
  30  * The forms needed by registration pages.
  31  */
  32
  33
  34 require_once($CFG->libdir . '/formslib.php');
  35 require_once($CFG->dirroot . '/' . $CFG->admin . '/registration/lib.php');
  36
  37 /**
  38  * This form display a unregistration form.
  39  */
  40 class site_unregistration_form extends moodleform {
  41
  42     public function definition() {
  43         $mform = & $this->_form;
  44         $mform->addElement('header', 'site', get_string('unregister', 'hub'));
  45
  46         $huburl = $this->_customdata['huburl'];
  47         $hubname = $this->_customdata['hubname'];
  48
  49         $unregisterlabel = get_string('unregister', 'hub');
  50         $mform->addElement('checkbox', 'unpublishalladvertisedcourses', '',
  51                 ' ' . get_string('unpublishalladvertisedcourses', 'hub'));
  52         $mform->setType('unpublishalladvertisedcourses', PARAM_INT);
  53         $mform->addElement('checkbox', 'unpublishalluploadedcourses', '',
  54                 ' ' . get_string('unpublishalluploadedcourses', 'hub'));
  55         $mform->setType('unpublishalluploadedcourses', PARAM_INT);
  56
  57         $mform->addElement('hidden', 'confirm', 1);
  58         $mform->setType('confirm', PARAM_INT);
  59         $mform->addElement('hidden', 'unregistration', 1);
  60         $mform->setType('unregistration', PARAM_INT);
  61         $mform->addElement('hidden', 'huburl', $huburl);
  62         $mform->setType('huburl', PARAM_URL);
  63         $mform->addElement('hidden', 'hubname', $hubname);
  64         $mform->setType('hubname', PARAM_TEXT);
  65
  66         $this->add_action_buttons(true, $unregisterlabel);
  67     }
  68
  69 }
  70
  71 /**
  72  * This form display a clean registration data form.
  73  */
  74 class site_clean_registration_data_form extends moodleform {
  75
  76     public function definition() {
  77         $mform = & $this->_form;
  78         $mform->addElement('header', 'site', get_string('unregister', 'hub'));
  79
  80         $huburl = $this->_customdata['huburl'];
  81         $hubname = $this->_customdata['hubname'];
  82
  83
  84         $unregisterlabel = get_string('forceunregister', 'hub');
  85         $mform->addElement('static', '', get_string('warning', 'hub'), get_string('forceunregisterconfirmation', 'hub', $hubname));
  86
  87         $mform->addElement('hidden', 'confirm', 1);
  88         $mform->setType('confirm', PARAM_INT);
  89         $mform->addElement('hidden', 'unregistration', 1);
  90         $mform->setType('unregistration', PARAM_INT);
  91         $mform->addElement('hidden', 'cleanregdata', 1);
  92         $mform->setType('cleanregdata', PARAM_INT);
  93         $mform->addElement('hidden', 'huburl', $huburl);
  94         $mform->setType('huburl', PARAM_URL);
  95         $mform->addElement('hidden', 'hubname', $hubname);
  96         $mform->setType('hubname', PARAM_TEXT);
  97
  98         $this->add_action_buttons(true, $unregisterlabel);
  99     }
 100
 101 }
 102
 103 /**
 104  * This form display a hub selector.
 105  * The hub list is retrieved from Moodle.org hub directory.
 106  * Also displayed, a text field to enter private hub url + its password
 107  */
 108 class hub_selector_form extends moodleform {
 109
 110     public function definition() {
 111         global $CFG, $OUTPUT;
 112         $mform = & $this->_form;
 113         $mform->addElement('header', 'site', get_string('selecthub', 'hub'));
 114
 115         //retrieve the hub list on the hub directory by web service
 116         $function = 'hubdirectory_get_hubs';
 117         $params = array();
 118         $serverurl = HUB_HUBDIRECTORYURL . "/local/hubdirectory/webservice/webservices.php";
 119         require_once($CFG->dirroot . "/webservice/xmlrpc/lib.php");
 120         $xmlrpcclient = new webservice_xmlrpc_client($serverurl, 'publichubdirectory');
 121         try {
 122             $hubs = $xmlrpcclient->call($function, $params);
 123         } catch (Exception $e) {
 124             $error = $OUTPUT->notification(get_string('errorhublisting', 'hub', $e->getMessage()));
 125             $mform->addElement('static', 'errorhub', '', $error);
 126             $hubs = array();
 127         }
 128
 129         //remove moodle.org from the hub list
 130         foreach ($hubs as $key => $hub) {
 131             if ($hub['url'] == HUB_MOODLEORGHUBURL) {
 132                 unset($hubs[$key]);
 133             }
 134         }
 135
 136         //Public hub list
 137         $options = array();
 138         foreach ($hubs as $hub) {
 139             //to not display a name longer than 100 character (too big)
 140             if (core_text::strlen($hub['name']) > 100) {
 141                 $hubname = core_text::substr($hub['name'], 0, 100);
 142                 $hubname = $hubname . "...";
 143             } else {
 144                 $hubname = $hub['name'];
 145             }
 146             $options[$hub['url']] = $hubname;
 147             $mform->addElement('hidden', clean_param($hub['url'], PARAM_ALPHANUMEXT), $hubname);
 148             $mform->setType(clean_param($hub['url'], PARAM_ALPHANUMEXT), PARAM_ALPHANUMEXT);
 149         }
 150         if (!empty($hubs)) {
 151             $mform->addElement('select', 'publichub', get_string('publichub', 'hub'),
 152                     $options, array("size" => 15));
 153             $mform->setType('publichub', PARAM_URL);
 154         }
 155
 156         $mform->addElement('static', 'or', '', get_string('orenterprivatehub', 'hub'));
 157
 158         //Private hub
 159         $mform->addElement('text', 'unlistedurl', get_string('privatehuburl', 'hub'),
 160                 array('class' => 'registration_textfield'));
 161         $mform->setType('unlistedurl', PARAM_URL);
 162         $mform->addElement('text', 'password', get_string('password'),
 163                 array('class' => 'registration_textfield'));
 164         $mform->setType('password', PARAM_RAW);
 165
 166         $this->add_action_buttons(false, get_string('selecthub', 'hub'));
 167     }
 168
 169     /**
 170      * Check the unlisted URL is a URL
 171      */
 172     function validation($data, $files) {
 173         global $CFG;
 174         $errors = parent::validation($data, $files);
 175
 176         $unlistedurl = $this->_form->_submitValues['unlistedurl'];
 177
 178         if (empty($unlistedurl)) {
 179             $errors['unlistedurl'] = get_string('badurlformat', 'hub');
 180         }
 181
 182         return $errors;
 183     }
 184
 185 }
 186
 187 /**
 188  * The site registration form. Information will be sent to a given hub.
 189  */
 190 class site_registration_form extends moodleform {
 191
 192     public function definition() {
 193         global $CFG, $DB;
 194
 195         $strrequired = get_string('required');
 196         $mform = & $this->_form;
 197         $huburl = $this->_customdata['huburl'];
 198         $hubname = $this->_customdata['hubname'];
 199         $password = $this->_customdata['password'];
 200         $admin = get_admin();
 201         $site = get_site();
 202
 203         //retrieve config for this hub and set default if they don't exist
 204         $cleanhuburl = clean_param($huburl, PARAM_ALPHANUMEXT);
 205         $sitename = get_config('hub', 'site_name_' . $cleanhuburl);
 206         if ($sitename === false) {
 207             $sitename = format_string($site->fullname, true, array('context' => context_course::instance(SITEID)));
 208         }
 209         $sitedescription = get_config('hub', 'site_description_' . $cleanhuburl);
 210         if ($sitedescription === false) {
 211             $sitedescription = $site->summary;
 212         }
 213         $contactname = get_config('hub', 'site_contactname_' . $cleanhuburl);
 214         if ($contactname === false) {
 215             $contactname = fullname($admin, true);
 216         }
 217         $contactemail = get_config('hub', 'site_contactemail_' . $cleanhuburl);
 218         if ($contactemail === false) {
 219             $contactemail = $admin->email;
 220         }
 221         $contactphone = get_config('hub', 'site_contactphone_' . $cleanhuburl);
 222         if ($contactphone === false) {
 223             $contactphone = $admin->phone1;
 224         }
 225         $imageurl = get_config('hub', 'site_imageurl_' . $cleanhuburl);
 226         $privacy = get_config('hub', 'site_privacy_' . $cleanhuburl);
 227         $address = get_config('hub', 'site_address_' . $cleanhuburl);
 228         $region = get_config('hub', 'site_region_' . $cleanhuburl);
 229         $country = get_config('hub', 'site_country_' . $cleanhuburl);
 230         if ($country === false) {
 231             $country = $admin->country;
 232         }
 233         $language = get_config('hub', 'site_language_' . $cleanhuburl);
 234         if ($language === false) {
 235             $language = current_language();
 236         }
 237         $geolocation = get_config('hub', 'site_geolocation_' . $cleanhuburl);
 238         $contactable = get_config('hub', 'site_contactable_' . $cleanhuburl);
 239         $emailalert = get_config('hub', 'site_emailalert_' . $cleanhuburl);
 240         $emailalert = ($emailalert === 0) ? 0 : 1;
 241         $coursesnumber = get_config('hub', 'site_coursesnumber_' . $cleanhuburl);
 242         $usersnumber = get_config('hub', 'site_usersnumber_' . $cleanhuburl);
 243         $roleassignmentsnumber = get_config('hub', 'site_roleassignmentsnumber_' . $cleanhuburl);
 244         $postsnumber = get_config('hub', 'site_postsnumber_' . $cleanhuburl);
 245         $questionsnumber = get_config('hub', 'site_questionsnumber_' . $cleanhuburl);
 246         $resourcesnumber = get_config('hub', 'site_resourcesnumber_' . $cleanhuburl);
 247         $badgesnumber = get_config('hub', 'site_badges_' . $cleanhuburl);
 248         $issuedbadgesnumber = get_config('hub', 'site_issuedbadges_' . $cleanhuburl);
 249         $mediancoursesize = get_config('hub', 'site_mediancoursesize_' . $cleanhuburl);
 250         $participantnumberaveragecfg = get_config('hub', 'site_participantnumberaverage_' . $cleanhuburl);
 251         $modulenumberaveragecfg = get_config('hub', 'site_modulenumberaverage_' . $cleanhuburl);
 252
 253         //hidden parameters
 254         $mform->addElement('hidden', 'huburl', $huburl);
 255         $mform->setType('huburl', PARAM_URL);
 256         $mform->addElement('hidden', 'hubname', $hubname);
 257         $mform->setType('hubname', PARAM_TEXT);
 258         $mform->addElement('hidden', 'password', $password);
 259         $mform->setType('password', PARAM_RAW);
 260
 261         //the input parameters
 262         $mform->addElement('header', 'moodle', get_string('registrationinfo', 'hub'));
 263
 264         $mform->addElement('text', 'name', get_string('sitename', 'hub'),
 265                 array('class' => 'registration_textfield'));
 266         $mform->addRule('name', $strrequired, 'required', null, 'client');
 267         $mform->setType('name', PARAM_TEXT);
 268         $mform->setDefault('name', $sitename);
 269         $mform->addHelpButton('name', 'sitename', 'hub');
 270
 271         $options = array();
 272         $registrationmanager = new registration_manager();
 273         $options[HUB_SITENOTPUBLISHED] = $registrationmanager->get_site_privacy_string(HUB_SITENOTPUBLISHED);
 274         $options[HUB_SITENAMEPUBLISHED] = $registrationmanager->get_site_privacy_string(HUB_SITENAMEPUBLISHED);
 275         $options[HUB_SITELINKPUBLISHED] = $registrationmanager->get_site_privacy_string(HUB_SITELINKPUBLISHED);
 276         $mform->addElement('select', 'privacy', get_string('siteprivacy', 'hub'), $options);
 277         $mform->setDefault('privacy', $privacy);
 278         $mform->setType('privacy', PARAM_ALPHA);
 279         $mform->addHelpButton('privacy', 'privacy', 'hub');
 280         unset($options);
 281
 282         $mform->addElement('textarea', 'description', get_string('sitedesc', 'hub'),
 283                 array('rows' => 8, 'cols' => 41));
 284         $mform->addRule('description', $strrequired, 'required', null, 'client');
 285         $mform->setDefault('description', $sitedescription);
 286         $mform->setType('description', PARAM_TEXT);
 287         $mform->addHelpButton('description', 'sitedesc', 'hub');
 288
 289         $languages = get_string_manager()->get_list_of_languages();
 290         core_collator::asort($languages);
 291         $mform->addElement('select', 'language', get_string('sitelang', 'hub'),
 292                 $languages);
 293         $mform->setType('language', PARAM_ALPHANUMEXT);
 294         $mform->addHelpButton('language', 'sitelang', 'hub');
 295         $mform->setDefault('language', $language);
 296
 297         $mform->addElement('textarea', 'address', get_string('postaladdress', 'hub'),
 298                 array('rows' => 4, 'cols' => 41));
 299         $mform->setType('address', PARAM_TEXT);
 300         $mform->setDefault('address', $address);
 301         $mform->addHelpButton('address', 'postaladdress', 'hub');
 302
 303         //TODO: use the region array I generated
 304 //        $mform->addElement('select', 'region', get_string('selectaregion'), array('-' => '-'));
 305 //        $mform->setDefault('region', $region);
 306         $mform->addElement('hidden', 'regioncode', '-');
 307         $mform->setType('regioncode', PARAM_ALPHANUMEXT);
 308
 309         $countries = get_string_manager()->get_list_of_countries();
 310         $mform->addElement('select', 'countrycode', get_string('sitecountry', 'hub'), $countries);
 311         $mform->setDefault('countrycode', $country);
 312         $mform->setType('countrycode', PARAM_ALPHANUMEXT);
 313         $mform->addHelpButton('countrycode', 'sitecountry', 'hub');
 314
 315         $mform->addElement('text', 'geolocation', get_string('sitegeolocation', 'hub'),
 316                 array('class' => 'registration_textfield'));
 317         $mform->setDefault('geolocation', $geolocation);
 318         $mform->setType('geolocation', PARAM_RAW);
 319         $mform->addHelpButton('geolocation', 'sitegeolocation', 'hub');
 320
 321         $mform->addElement('text', 'contactname', get_string('siteadmin', 'hub'),
 322                 array('class' => 'registration_textfield'));
 323         $mform->addRule('contactname', $strrequired, 'required', null, 'client');
 324         $mform->setType('contactname', PARAM_TEXT);
 325         $mform->setDefault('contactname', $contactname);
 326         $mform->addHelpButton('contactname', 'siteadmin', 'hub');
 327
 328         $mform->addElement('text', 'contactphone', get_string('sitephone', 'hub'),
 329                 array('class' => 'registration_textfield'));
 330         $mform->setType('contactphone', PARAM_TEXT);
 331         $mform->addHelpButton('contactphone', 'sitephone', 'hub');
 332         $mform->setForceLtr('contactphone');
 333
 334         $mform->addElement('text', 'contactemail', get_string('siteemail', 'hub'),
 335                 array('class' => 'registration_textfield'));
 336         $mform->addRule('contactemail', $strrequired, 'required', null, 'client');
 337         $mform->setType('contactemail', PARAM_EMAIL);
 338         $mform->setDefault('contactemail', $contactemail);
 339         $mform->addHelpButton('contactemail', 'siteemail', 'hub');
 340
 341         $options = array();
 342         $options[0] = get_string("registrationcontactno");
 343         $options[1] = get_string("registrationcontactyes");
 344         $mform->addElement('select', 'contactable', get_string('siteregistrationcontact', 'hub'), $options);
 345         $mform->setDefault('contactable', $contactable);
 346         $mform->setType('contactable', PARAM_INT);
 347         $mform->addHelpButton('contactable', 'siteregistrationcontact', 'hub');
 348         unset($options);
 349
 350         $options = array();
 351         $options[0] = get_string("registrationno");
 352         $options[1] = get_string("registrationyes");
 353         $mform->addElement('select', 'emailalert', get_string('siteregistrationemail', 'hub'), $options);
 354         $mform->setDefault('emailalert', $emailalert);
 355         $mform->setType('emailalert', PARAM_INT);
 356         $mform->addHelpButton('emailalert', 'siteregistrationemail', 'hub');
 357         unset($options);
 358
 359         //TODO site logo
 360         $mform->addElement('hidden', 'imageurl', ''); //TODO: temporary
 361         $mform->setType('imageurl', PARAM_URL);
 362
 363         $mform->addElement('static', 'urlstring', get_string('siteurl', 'hub'), $CFG->wwwroot);
 364         $mform->addHelpButton('urlstring', 'siteurl', 'hub');
 365
 366         $mform->addElement('static', 'versionstring', get_string('siteversion', 'hub'), $CFG->version);
 367         $mform->addElement('hidden', 'moodleversion', $CFG->version);
 368         $mform->setType('moodleversion', PARAM_INT);
 369         $mform->addHelpButton('versionstring', 'siteversion', 'hub');
 370
 371         $mform->addElement('static', 'releasestring', get_string('siterelease', 'hub'), $CFG->release);
 372         $mform->addElement('hidden', 'moodlerelease', $CFG->release);
 373         $mform->setType('moodlerelease', PARAM_TEXT);
 374         $mform->addHelpButton('releasestring', 'siterelease', 'hub');
 375
 376         /// Display statistic that are going to be retrieve by the hub
 377         $coursecount = $DB->count_records('course') - 1;
 378         $usercount = $DB->count_records('user', array('deleted' => 0));
 379         $roleassigncount = $DB->count_records('role_assignments');
 380         $postcount = $DB->count_records('forum_posts');
 381         $questioncount = $DB->count_records('question');
 382         $resourcecount = $DB->count_records('resource');
 383         require_once($CFG->dirroot . "/course/lib.php");
 384         $participantnumberaverage = number_format(average_number_of_participants(), 2);
 385         $modulenumberaverage = number_format(average_number_of_courses_modules(), 2);
 386         require_once($CFG->libdir . '/badgeslib.php');
 387         $badges = $DB->count_records_select('badge', 'status <> ' . BADGE_STATUS_ARCHIVED);
 388         $issuedbadges = $DB->count_records('badge_issued');
 389
 390         if (HUB_MOODLEORGHUBURL != $huburl) {
 391             $mform->addElement('checkbox', 'courses', get_string('sendfollowinginfo', 'hub'),
 392                     " " . get_string('coursesnumber', 'hub', $coursecount));
 393             $mform->setDefault('courses', $coursesnumber != -1);
 394             $mform->setType('courses', PARAM_INT);
 395             $mform->addHelpButton('courses', 'sendfollowinginfo', 'hub');
 396
 397             $mform->addElement('checkbox', 'users', '',
 398                     " " . get_string('usersnumber', 'hub', $usercount));
 399             $mform->setDefault('users', $usersnumber != -1);
 400             $mform->setType('users', PARAM_INT);
 401
 402             $mform->addElement('checkbox', 'roleassignments', '',
 403                     " " . get_string('roleassignmentsnumber', 'hub', $roleassigncount));
 404             $mform->setDefault('roleassignments', $roleassignmentsnumber != -1);
 405             $mform->setType('roleassignments', PARAM_INT);
 406
 407             $mform->addElement('checkbox', 'posts', '',
 408                     " " . get_string('postsnumber', 'hub', $postcount));
 409             $mform->setDefault('posts', $postsnumber != -1);
 410             $mform->setType('posts', PARAM_INT);
 411
 412             $mform->addElement('checkbox', 'questions', '',
 413                     " " . get_string('questionsnumber', 'hub', $questioncount));
 414             $mform->setDefault('questions', $questionsnumber != -1);
 415             $mform->setType('questions', PARAM_INT);
 416
 417             $mform->addElement('checkbox', 'resources', '',
 418                     " " . get_string('resourcesnumber', 'hub', $resourcecount));
 419             $mform->setDefault('resources', $resourcesnumber != -1);
 420             $mform->setType('resources', PARAM_INT);
 421
 422             $mform->addElement('checkbox', 'badges', '',
 423                     " " . get_string('badgesnumber', 'hub', $badges));
 424             $mform->setDefault('badges', $badgesnumber != -1);
 425             $mform->setType('resources', PARAM_INT);
 426
 427             $mform->addElement('checkbox', 'issuedbadges', '',
 428                     " " . get_string('issuedbadgesnumber', 'hub', $issuedbadges));
 429             $mform->setDefault('issuedbadges', $issuedbadgesnumber != -1);
 430             $mform->setType('resources', PARAM_INT);
 431
 432             $mform->addElement('checkbox', 'participantnumberaverage', '',
 433                     " " . get_string('participantnumberaverage', 'hub', $participantnumberaverage));
 434             $mform->setDefault('participantnumberaverage', $participantnumberaveragecfg != -1);
 435             $mform->setType('participantnumberaverage', PARAM_FLOAT);
 436
 437             $mform->addElement('checkbox', 'modulenumberaverage', '',
 438                     " " . get_string('modulenumberaverage', 'hub', $modulenumberaverage));
 439             $mform->setDefault('modulenumberaverage', $modulenumberaveragecfg != -1);
 440             $mform->setType('modulenumberaverage', PARAM_FLOAT);
 441         } else {
 442             $mform->addElement('static', 'courseslabel', get_string('sendfollowinginfo', 'hub'),
 443                     " " . get_string('coursesnumber', 'hub', $coursecount));
 444             $mform->addElement('hidden', 'courses', 1);
 445             $mform->setType('courses', PARAM_INT);
 446             $mform->addHelpButton('courseslabel', 'sendfollowinginfo', 'hub');
 447
 448             $mform->addElement('static', 'userslabel', '',
 449                     " " . get_string('usersnumber', 'hub', $usercount));
 450             $mform->addElement('hidden', 'users', 1);
 451             $mform->setType('users', PARAM_INT);
 452
 453             $mform->addElement('static', 'roleassignmentslabel', '',
 454                     " " . get_string('roleassignmentsnumber', 'hub', $roleassigncount));
 455             $mform->addElement('hidden', 'roleassignments', 1);
 456             $mform->setType('roleassignments', PARAM_INT);
 457
 458             $mform->addElement('static', 'postslabel', '',
 459                     " " . get_string('postsnumber', 'hub', $postcount));
 460             $mform->addElement('hidden', 'posts', 1);
 461             $mform->setType('posts', PARAM_INT);
 462
 463             $mform->addElement('static', 'questionslabel', '',
 464                     " " . get_string('questionsnumber', 'hub', $questioncount));
 465             $mform->addElement('hidden', 'questions', 1);
 466             $mform->setType('questions', PARAM_INT);
 467
 468             $mform->addElement('static', 'resourceslabel', '',
 469                     " " . get_string('resourcesnumber', 'hub', $resourcecount));
 470             $mform->addElement('hidden', 'resources', 1);
 471             $mform->setType('resources', PARAM_INT);
 472
 473             $mform->addElement('static', 'badgeslabel', '',
 474                     " " . get_string('badgesnumber', 'hub', $badges));
 475             $mform->addElement('hidden', 'badges', 1);
 476             $mform->setType('badges', PARAM_INT);
 477
 478             $mform->addElement('static', 'issuedbadgeslabel', '',
 479                     " " . get_string('issuedbadgesnumber', 'hub', $issuedbadges));
 480             $mform->addElement('hidden', 'issuedbadges', true);
 481             $mform->setType('issuedbadges', PARAM_INT);
 482
 483             $mform->addElement('static', 'participantnumberaveragelabel', '',
 484                     " " . get_string('participantnumberaverage', 'hub', $participantnumberaverage));
 485             $mform->addElement('hidden', 'participantnumberaverage', 1);
 486             $mform->setType('participantnumberaverage', PARAM_FLOAT);
 487
 488             $mform->addElement('static', 'modulenumberaveragelabel', '',
 489                     " " . get_string('modulenumberaverage', 'hub', $modulenumberaverage));
 490             $mform->addElement('hidden', 'modulenumberaverage', 1);
 491             $mform->setType('modulenumberaverage', PARAM_FLOAT);
 492         }
 493
 494         //check if it's a first registration or update
 495         $hubregistered = $registrationmanager->get_registeredhub($huburl);
 496
 497         if (!empty($hubregistered)) {
 498             $buttonlabel = get_string('updatesite', 'hub',
 499                             !empty($hubname) ? $hubname : $huburl);
 500             $mform->addElement('hidden', 'update', true);
 501             $mform->setType('update', PARAM_BOOL);
 502         } else {
 503             $buttonlabel = get_string('registersite', 'hub',
 504                             !empty($hubname) ? $hubname : $huburl);
 505         }
 506
 507         $this->add_action_buttons(false, $buttonlabel);
 508     }
 509
 510 }
 511