CRM/Event/Form/Registration.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | Copyright CiviCRM LLC. All rights reserved.                        |
   5  |                                                                    |
   6  | This work is published under the GNU AGPLv3 license with some      |
   7  | permitted exceptions and without any warranty. For full license    |
   8  | and copyright information, see https://civicrm.org/licensing       |
   9  +--------------------------------------------------------------------+
  10  */
  11
  12 /**
  13  * @package CRM
  14  * @copyright CiviCRM LLC https://civicrm.org/licensing
  15  */
  16
  17 /**
  18  * This class generates form components for processing Event.
  19  */
  20 class CRM_Event_Form_Registration extends CRM_Core_Form {
  21   use CRM_Financial_Form_FrontEndPaymentFormTrait;
  22
  23   /**
  24    * How many locationBlocks should we display?
  25    *
  26    * @var int
  27    * @const
  28    */
  29   const LOCATION_BLOCKS = 1;
  30
  31   /**
  32    * The id of the event we are proceessing.
  33    *
  34    * @var int
  35    */
  36   public $_eventId;
  37
  38   /**
  39    * The array of ids of all the participant we are proceessing.
  40    *
  41    * @var int
  42    */
  43   protected $_participantIDS = NULL;
  44
  45   /**
  46    * The id of the participant we are proceessing.
  47    *
  48    * @var int
  49    */
  50   protected $_participantId;
  51
  52   /**
  53    * Is participant able to walk registration wizard.
  54    *
  55    * @var bool
  56    */
  57   public $_allowConfirmation;
  58
  59   /**
  60    * Is participant requires approval.
  61    *
  62    * @var bool
  63    */
  64   public $_requireApproval;
  65
  66   /**
  67    * Is event configured for waitlist.
  68    *
  69    * @var bool
  70    */
  71   public $_allowWaitlist;
  72
  73   /**
  74    * Store additional participant ids.
  75    * when there are pre-registered.
  76    *
  77    * @var array
  78    */
  79   public $_additionalParticipantIds;
  80
  81   /**
  82    * The values for the contribution db object.
  83    *
  84    * @var array
  85    */
  86   public $_values;
  87
  88   /**
  89    * The paymentProcessor attributes for this page.
  90    *
  91    * @var array
  92    */
  93   public $_paymentProcessor;
  94
  95   /**
  96    * The params submitted by the form and computed by the app.
  97    *
  98    * @var array
  99    */
 100   protected $_params;
 101
 102   /**
 103    * The fields involved in this contribution page.
 104    *
 105    * @var array
 106    */
 107   public $_fields;
 108
 109   /**
 110    * The billing location id for this contribiution page.
 111    *
 112    * @var int
 113    */
 114   public $_bltID;
 115
 116   /**
 117    * Price Set ID, if the new price set method is used
 118    *
 119    * @var int
 120    */
 121   public $_priceSetId = NULL;
 122
 123   /**
 124    * Array of fields for the price set.
 125    *
 126    * @var array
 127    */
 128   public $_priceSet;
 129
 130   public $_action;
 131
 132   public $_pcpId;
 133
 134   /**
 135    * Is event already full.
 136    *
 137    * @var bool
 138    *
 139    */
 140
 141
 142   public $_isEventFull;
 143
 144   public $_lineItem;
 145   public $_lineItemParticipantsCount;
 146   public $_availableRegistrations;
 147
 148   /**
 149    * @var bool
 150    * @deprecated
 151    */
 152   public $_isBillingAddressRequiredForPayLater;
 153
 154   /**
 155    * Is this a back office form
 156    *
 157    * @var bool
 158    */
 159   public $isBackOffice = FALSE;
 160
 161   /**
 162    * Payment instrument iD for the transaction.
 163    *
 164    * This will generally be drawn from the payment processor and is ignored for
 165    * front end forms.
 166    *
 167    * @var int
 168    */
 169   public $paymentInstrumentID;
 170
 171   /**
 172    * Set variables up before form is built.
 173    */
 174   public function preProcess() {
 175     $this->_eventId = CRM_Utils_Request::retrieve('id', 'Positive', $this, TRUE);
 176     $this->_action = CRM_Utils_Request::retrieve('action', 'Alphanumeric', $this, FALSE, CRM_Core_Action::ADD);
 177     //CRM-4320
 178     $this->_participantId = CRM_Utils_Request::retrieve('participantId', 'Positive', $this);
 179     $this->setPaymentMode();
 180
 181     $this->_values = $this->get('values');
 182     $this->_fields = $this->get('fields');
 183     $this->_bltID = $this->get('bltID');
 184     $this->_paymentProcessor = $this->get('paymentProcessor');
 185     $this->_priceSetId = $this->get('priceSetId');
 186     $this->_priceSet = $this->get('priceSet');
 187     $this->_lineItem = $this->get('lineItem');
 188     $this->_isEventFull = $this->get('isEventFull');
 189     $this->_lineItemParticipantsCount = $this->get('lineItemParticipants');
 190     if (!is_array($this->_lineItem)) {
 191       $this->_lineItem = [];
 192     }
 193     if (!is_array($this->_lineItemParticipantsCount)) {
 194       $this->_lineItemParticipantsCount = [];
 195     }
 196     $this->_availableRegistrations = $this->get('availableRegistrations');
 197     $this->_participantIDS = $this->get('participantIDs');
 198
 199     //check if participant allow to walk registration wizard.
 200     $this->_allowConfirmation = $this->get('allowConfirmation');
 201
 202     // check for Approval
 203     $this->_requireApproval = $this->get('requireApproval');
 204
 205     // check for waitlisting.
 206     $this->_allowWaitlist = $this->get('allowWaitlist');
 207
 208     //get the additional participant ids.
 209     $this->_additionalParticipantIds = $this->get('additionalParticipantIds');
 210     $config = CRM_Core_Config::singleton();
 211
 212     if (!$this->_values) {
 213       // create redirect URL to send folks back to event info page is registration not available
 214       $infoUrl = CRM_Utils_System::url('civicrm/event/info', "reset=1&id={$this->_eventId}",
 215         FALSE, NULL, FALSE, TRUE
 216       );
 217
 218       // this is the first time we are hitting this, so check for permissions here
 219       if (!CRM_Core_Permission::event(CRM_Core_Permission::EDIT, $this->_eventId, 'register for events')) {
 220         CRM_Core_Error::statusBounce(ts('You do not have permission to register for this event'), $infoUrl);
 221       }
 222
 223       // get all the values from the dao object
 224       $this->_values = $this->_fields = [];
 225
 226       //retrieve event information
 227       $params = array('id' => $this->_eventId);
 228       CRM_Event_BAO_Event::retrieve($params, $this->_values['event']);
 229       // check for is_monetary status
 230       $isMonetary = $this->_values['event']['is_monetary'] ?? NULL;
 231       // check for ability to add contributions of type
 232       if ($isMonetary
 233         && CRM_Financial_BAO_FinancialType::isACLFinancialTypeStatus()
 234         && !CRM_Core_Permission::check('add contributions of type ' . CRM_Contribute_PseudoConstant::financialType($this->_values['event']['financial_type_id']))
 235       ) {
 236         CRM_Core_Error::statusBounce(ts('You do not have permission to access this page.'));
 237       }
 238
 239       $this->checkValidEvent($infoUrl);
 240       // get the participant values, CRM-4320
 241       $this->_allowConfirmation = FALSE;
 242       if ($this->_participantId) {
 243         $this->processFirstParticipant($this->_participantId);
 244       }
 245       //check for additional participants.
 246       if ($this->_allowConfirmation && $this->_values['event']['is_multiple_registrations']) {
 247         $additionalParticipantIds = CRM_Event_BAO_Participant::getAdditionalParticipantIds($this->_participantId);
 248         $cnt = 1;
 249         foreach ($additionalParticipantIds as $additionalParticipantId) {
 250           $this->_additionalParticipantIds[$cnt] = $additionalParticipantId;
 251           $cnt++;
 252         }
 253         $this->set('additionalParticipantIds', $this->_additionalParticipantIds);
 254       }
 255
 256       $eventFull = CRM_Event_BAO_Participant::eventFull($this->_eventId, FALSE,
 257         CRM_Utils_Array::value('has_waitlist', $this->_values['event'])
 258       );
 259
 260       $this->_allowWaitlist = $this->_isEventFull = FALSE;
 261       if ($eventFull && !$this->_allowConfirmation) {
 262         $this->_isEventFull = TRUE;
 263         //lets redirecting to info only when to waiting list.
 264         $this->_allowWaitlist = $this->_values['event']['has_waitlist'] ?? NULL;
 265         if (!$this->_allowWaitlist) {
 266           CRM_Utils_System::redirect($infoUrl);
 267         }
 268       }
 269       $this->set('isEventFull', $this->_isEventFull);
 270       $this->set('allowWaitlist', $this->_allowWaitlist);
 271
 272       //check for require requires approval.
 273       $this->_requireApproval = FALSE;
 274       if (!empty($this->_values['event']['requires_approval']) && !$this->_allowConfirmation) {
 275         $this->_requireApproval = TRUE;
 276       }
 277       $this->set('requireApproval', $this->_requireApproval);
 278
 279       if (isset($this->_values['event']['default_role_id'])) {
 280         $participant_role = CRM_Core_OptionGroup::values('participant_role');
 281         $this->_values['event']['participant_role'] = $participant_role["{$this->_values['event']['default_role_id']}"];
 282       }
 283       $isPayLater = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Event', $this->_eventId, 'is_pay_later');
 284       $this->setPayLaterLabel($isPayLater ? $this->_values['event']['pay_later_text'] : '');
 285       //check for various combinations for paylater, payment
 286       //process with paid event.
 287       if ($isMonetary && (!$isPayLater || !empty($this->_values['event']['payment_processor']))) {
 288         $this->_paymentProcessorIDs = explode(CRM_Core_DAO::VALUE_SEPARATOR, CRM_Utils_Array::value('payment_processor',
 289           $this->_values['event']
 290         ));
 291         $this->assignPaymentProcessor($isPayLater);
 292       }
 293       //init event fee.
 294       self::initEventFee($this, $this->_eventId);
 295
 296       // get the profile ids
 297       $ufJoinParams = array(
 298         'entity_table' => 'civicrm_event',
 299         // CRM-4377: CiviEvent for the main participant, CiviEvent_Additional for additional participants
 300         'module' => 'CiviEvent',
 301         'entity_id' => $this->_eventId,
 302       );
 303       list($this->_values['custom_pre_id'],
 304         $this->_values['custom_post_id']
 305         ) = CRM_Core_BAO_UFJoin::getUFGroupIds($ufJoinParams);
 306
 307       // set profiles for additional participants
 308       if ($this->_values['event']['is_multiple_registrations']) {
 309         // CRM-4377: CiviEvent for the main participant, CiviEvent_Additional for additional participants
 310         $ufJoinParams['module'] = 'CiviEvent_Additional';
 311
 312         list($this->_values['additional_custom_pre_id'],
 313           $this->_values['additional_custom_post_id'], $preActive, $postActive
 314           ) = CRM_Core_BAO_UFJoin::getUFGroupIds($ufJoinParams);
 315
 316         // CRM-4377: we need to maintain backward compatibility, hence if there is profile for main contact
 317         // set same profile for additional contacts.
 318         if ($this->_values['custom_pre_id'] && !$this->_values['additional_custom_pre_id']) {
 319           $this->_values['additional_custom_pre_id'] = $this->_values['custom_pre_id'];
 320         }
 321
 322         if ($this->_values['custom_post_id'] && !$this->_values['additional_custom_post_id']) {
 323           $this->_values['additional_custom_post_id'] = $this->_values['custom_post_id'];
 324         }
 325         // now check for no profile condition, in that case is_active = 0
 326         if (isset($preActive) && !$preActive) {
 327           unset($this->_values['additional_custom_pre_id']);
 328         }
 329         if (isset($postActive) && !$postActive) {
 330           unset($this->_values['additional_custom_post_id']);
 331         }
 332       }
 333
 334       $this->assignBillingType();
 335
 336       if ($this->_values['event']['is_monetary']) {
 337         CRM_Core_Payment_Form::setPaymentFieldsByProcessor($this, $this->_paymentProcessor);
 338       }
 339       $params = array('entity_id' => $this->_eventId, 'entity_table' => 'civicrm_event');
 340       $this->_values['location'] = CRM_Core_BAO_Location::getValues($params, TRUE);
 341
 342       $this->set('values', $this->_values);
 343       $this->set('fields', $this->_fields);
 344
 345       $this->_availableRegistrations
 346         = CRM_Event_BAO_Participant::eventFull(
 347           $this->_values['event']['id'], TRUE,
 348           CRM_Utils_Array::value('has_waitlist', $this->_values['event'])
 349         );
 350       $this->set('availableRegistrations', $this->_availableRegistrations);
 351     }
 352     $this->assign_by_ref('paymentProcessor', $this->_paymentProcessor);
 353
 354     // check if this is a paypal auto return and redirect accordingly
 355     if (CRM_Core_Payment::paypalRedirect($this->_paymentProcessor)) {
 356       $url = CRM_Utils_System::url('civicrm/event/register',
 357         "_qf_ThankYou_display=1&qfKey={$this->controller->_key}"
 358       );
 359       CRM_Utils_System::redirect($url);
 360     }
 361     // The concept of contributeMode is deprecated.
 362     $this->_contributeMode = $this->get('contributeMode');
 363     $this->assign('contributeMode', $this->_contributeMode);
 364
 365     $this->setTitle($this->_values['event']['title']);
 366
 367     $this->assign('paidEvent', $this->_values['event']['is_monetary']);
 368
 369     // we do not want to display recently viewed items on Registration pages
 370     $this->assign('displayRecent', FALSE);
 371
 372     $isShowLocation = $this->_values['event']['is_show_location'] ?? NULL;
 373     $this->assign('isShowLocation', $isShowLocation);
 374     // Handle PCP
 375     $pcpId = CRM_Utils_Request::retrieve('pcpId', 'Positive', $this);
 376     if ($pcpId) {
 377       $pcp = CRM_PCP_BAO_PCP::handlePcp($pcpId, 'event', $this->_values['event']);
 378       $this->_pcpId = $pcp['pcpId'];
 379       $this->_values['event']['intro_text'] = $pcp['pcpInfo']['intro_text'] ?? NULL;
 380     }
 381
 382     // assign all event properties so wizard templates can display event info.
 383     $this->assign('event', $this->_values['event']);
 384     $this->assign('location', $this->_values['location']);
 385     $this->assign('bltID', $this->_bltID);
 386     $isShowLocation = $this->_values['event']['is_show_location'] ?? NULL;
 387     $this->assign('isShowLocation', $isShowLocation);
 388     CRM_Contribute_BAO_Contribution_Utils::overrideDefaultCurrency($this->_values['event']);
 389
 390     //lets allow user to override campaign.
 391     $campID = CRM_Utils_Request::retrieve('campID', 'Positive', $this);
 392     if ($campID && CRM_Core_DAO::getFieldValue('CRM_Campaign_DAO_Campaign', $campID)) {
 393       $this->_values['event']['campaign_id'] = $campID;
 394     }
 395
 396     // Set the same value for is_billing_required as contribution page so code can be shared.
 397     $this->_values['is_billing_required'] = $this->_values['event']['is_billing_required'] ?? NULL;
 398     // check if billing block is required for pay later
 399     // note that I have started removing the use of isBillingAddressRequiredForPayLater in favour of letting
 400     // the CRM_Core_Payment_Manual class handle it - but there are ~300 references to it in the code base so only
 401     // removing in very limited cases.
 402     if (!empty($this->_values['event']['is_pay_later'])) {
 403       $this->_isBillingAddressRequiredForPayLater = $this->_values['event']['is_billing_required'] ?? NULL;
 404       $this->assign('isBillingAddressRequiredForPayLater', $this->_isBillingAddressRequiredForPayLater);
 405     }
 406   }
 407
 408   /**
 409    * Assign the minimal set of variables to the template.
 410    */
 411   public function assignToTemplate() {
 412     //process only primary participant params
 413     $this->_params = $this->get('params');
 414     if (isset($this->_params[0])) {
 415       $params = $this->_params[0];
 416     }
 417     $name = '';
 418     if (!empty($params['billing_first_name'])) {
 419       $name = $params['billing_first_name'];
 420     }
 421
 422     if (!empty($params['billing_middle_name'])) {
 423       $name .= " {$params['billing_middle_name']}";
 424     }
 425
 426     if (!empty($params['billing_last_name'])) {
 427       $name .= " {$params['billing_last_name']}";
 428     }
 429     $this->assign('billingName', $name);
 430     $this->set('name', $name);
 431
 432     $vars = array(
 433       'amount',
 434       'currencyID',
 435       'credit_card_type',
 436       'trxn_id',
 437       'amount_level',
 438       'receive_date',
 439     );
 440
 441     foreach ($vars as $v) {
 442       if (!empty($params[$v])) {
 443         if ($v == 'receive_date') {
 444           $this->assign($v, CRM_Utils_Date::mysqlToIso($params[$v]));
 445         }
 446         else {
 447           $this->assign($v, $params[$v]);
 448         }
 449       }
 450       elseif (empty($params['amount'])) {
 451         $this->assign($v, CRM_Utils_Array::value($v, $params));
 452       }
 453     }
 454
 455     $this->assign('address', CRM_Utils_Address::getFormattedBillingAddressFieldsFromParameters($params, $this->_bltID));
 456
 457     // The concept of contributeMode is deprecated.
 458     if ($this->_contributeMode == 'direct' && empty($params['is_pay_later'])) {
 459       $date = CRM_Utils_Date::format(CRM_Utils_Array::value('credit_card_exp_date', $params));
 460       $date = CRM_Utils_Date::mysqlToIso($date);
 461       $this->assign('credit_card_exp_date', $date);
 462       $this->assign('credit_card_number',
 463         CRM_Utils_System::mungeCreditCard(CRM_Utils_Array::value('credit_card_number', $params))
 464       );
 465     }
 466
 467     // get the email that the confirmation would have been sent to
 468     $session = CRM_Core_Session::singleton();
 469
 470     // assign is_email_confirm to templates
 471     if (isset($this->_values['event']['is_email_confirm'])) {
 472       $this->assign('is_email_confirm', $this->_values['event']['is_email_confirm']);
 473     }
 474
 475     // assign pay later stuff
 476     $params['is_pay_later'] = CRM_Utils_Array::value('is_pay_later', $params, FALSE);
 477     $this->assign('is_pay_later', $params['is_pay_later']);
 478     if ($params['is_pay_later']) {
 479       $this->assign('pay_later_text', $this->getPayLaterLabel());
 480       $this->assign('pay_later_receipt', $this->_values['event']['pay_later_receipt']);
 481     }
 482
 483     // also assign all participantIDs to the template
 484     // useful in generating confirmation numbers if needed
 485     $this->assign('participantIDs', $this->_participantIDS);
 486   }
 487
 488   /**
 489    * Add the custom fields.
 490    *
 491    * @param int $id
 492    * @param string $name
 493    * @param bool $viewOnly
 494    */
 495   public function buildCustom($id, $name, $viewOnly = FALSE) {
 496     if ($id) {
 497       $button = substr($this->controller->getButtonName(), -4);
 498       $cid = CRM_Utils_Request::retrieve('cid', 'Positive', $this);
 499       $session = CRM_Core_Session::singleton();
 500       $contactID = $session->get('userID');
 501
 502       // we don't allow conflicting fields to be
 503       // configured via profile
 504       $fieldsToIgnore = array(
 505         'participant_fee_amount' => 1,
 506         'participant_fee_level' => 1,
 507       );
 508       if ($contactID) {
 509         //FIX CRM-9653
 510         if (is_array($id)) {
 511           $fields = [];
 512           foreach ($id as $profileID) {
 513             $field = CRM_Core_BAO_UFGroup::getFields($profileID, FALSE, CRM_Core_Action::ADD,
 514               NULL, NULL, FALSE, NULL,
 515               FALSE, NULL, CRM_Core_Permission::CREATE,
 516               'field_name', TRUE
 517             );
 518             $fields = array_merge($fields, $field);
 519           }
 520         }
 521         else {
 522           if (CRM_Core_BAO_UFGroup::filterUFGroups($id, $contactID)) {
 523             $fields = CRM_Core_BAO_UFGroup::getFields($id, FALSE, CRM_Core_Action::ADD,
 524               NULL, NULL, FALSE, NULL,
 525               FALSE, NULL, CRM_Core_Permission::CREATE,
 526               'field_name', TRUE
 527             );
 528           }
 529         }
 530       }
 531       else {
 532         $fields = CRM_Core_BAO_UFGroup::getFields($id, FALSE, CRM_Core_Action::ADD,
 533           NULL, NULL, FALSE, NULL,
 534           FALSE, NULL, CRM_Core_Permission::CREATE,
 535           'field_name', TRUE
 536         );
 537       }
 538
 539       if (array_intersect_key($fields, $fieldsToIgnore)) {
 540         $fields = array_diff_key($fields, $fieldsToIgnore);
 541         CRM_Core_Session::setStatus(ts('Some of the profile fields cannot be configured for this page.'));
 542       }
 543       $addCaptcha = FALSE;
 544
 545       if (!empty($this->_fields)) {
 546         $fields = @array_diff_assoc($fields, $this->_fields);
 547       }
 548
 549       if (empty($this->_params[0]['additional_participants']) &&
 550         is_null($cid)
 551       ) {
 552         CRM_Core_BAO_Address::checkContactSharedAddressFields($fields, $contactID);
 553       }
 554       $this->assign($name, $fields);
 555       if (is_array($fields)) {
 556         foreach ($fields as $key => $field) {
 557           if ($viewOnly &&
 558             isset($field['data_type']) &&
 559             $field['data_type'] == 'File' || ($viewOnly && $field['name'] == 'image_URL')
 560           ) {
 561             // ignore file upload fields
 562             continue;
 563           }
 564           //make the field optional if primary participant
 565           //have been skip the additional participant.
 566           if ($button == 'skip') {
 567             $field['is_required'] = FALSE;
 568           }
 569           // CRM-11316 Is ReCAPTCHA enabled for this profile AND is this an anonymous visitor
 570           elseif ($field['add_captcha'] && !$contactID) {
 571             // only add captcha for first page
 572             $addCaptcha = TRUE;
 573           }
 574           list($prefixName, $index) = CRM_Utils_System::explode('-', $key, 2);
 575           CRM_Core_BAO_UFGroup::buildProfile($this, $field, CRM_Profile_Form::MODE_CREATE, $contactID, TRUE);
 576
 577           $this->_fields[$key] = $field;
 578         }
 579       }
 580
 581       if ($addCaptcha && !$viewOnly) {
 582         CRM_Utils_ReCAPTCHA::enableCaptchaOnForm($this);
 583       }
 584     }
 585   }
 586
 587   /**
 588    * Initiate event fee.
 589    *
 590    * @param CRM_Core_Form $form
 591    * @param int $eventID
 592    * @param bool $includeExpiredFields
 593    *   See CRM-16456.
 594    *
 595    * @throws Exception
 596    */
 597   public static function initEventFee(&$form, $eventID, $includeExpiredFields = TRUE) {
 598     // get price info
 599
 600     // retrive all active price set fields.
 601     $discountId = CRM_Core_BAO_Discount::findSet($eventID, 'civicrm_event');
 602     if (property_exists($form, '_discountId') && $form->_discountId) {
 603       $discountId = $form->_discountId;
 604     }
 605
 606     if ($discountId) {
 607       $priceSetId = CRM_Core_DAO::getFieldValue('CRM_Core_BAO_Discount', $discountId, 'price_set_id');
 608       CRM_Price_BAO_PriceSet::initSet($form, 'civicrm_event', $includeExpiredFields, $priceSetId);
 609     }
 610     else {
 611       $priceSetId = CRM_Price_BAO_PriceSet::getFor('civicrm_event', $eventID);
 612       CRM_Price_BAO_PriceSet::initSet($form, 'civicrm_event', $includeExpiredFields, $priceSetId);
 613     }
 614
 615     if (property_exists($form, '_context') && ($form->_context == 'standalone'
 616         || $form->_context == 'participant')
 617     ) {
 618       $discountedEvent = CRM_Core_BAO_Discount::getOptionGroup($eventID, 'civicrm_event');
 619       if (is_array($discountedEvent)) {
 620         foreach ($discountedEvent as $key => $priceSetId) {
 621           $priceSet = CRM_Price_BAO_PriceSet::getSetDetail($priceSetId);
 622           $priceSet = $priceSet[$priceSetId] ?? NULL;
 623           $form->_values['discount'][$key] = $priceSet['fields'] ?? NULL;
 624           $fieldID = key($form->_values['discount'][$key]);
 625           $form->_values['discount'][$key][$fieldID]['name'] = CRM_Core_DAO::getFieldValue(
 626             'CRM_Price_DAO_PriceSet',
 627             $priceSetId,
 628             'title'
 629           );
 630         }
 631       }
 632     }
 633     $eventFee = $form->_values['fee'] ?? NULL;
 634     if (!is_array($eventFee) || empty($eventFee)) {
 635       $form->_values['fee'] = [];
 636     }
 637
 638     //fix for non-upgraded price sets.CRM-4256.
 639     if (isset($form->_isPaidEvent)) {
 640       $isPaidEvent = $form->_isPaidEvent;
 641     }
 642     else {
 643       $isPaidEvent = $form->_values['event']['is_monetary'] ?? NULL;
 644     }
 645     if (CRM_Financial_BAO_FinancialType::isACLFinancialTypeStatus()
 646       && !empty($form->_values['fee'])
 647     ) {
 648       foreach ($form->_values['fee'] as $k => $fees) {
 649         foreach ($fees['options'] as $options) {
 650           if (!CRM_Core_Permission::check('add contributions of type ' . CRM_Contribute_PseudoConstant::financialType($options['financial_type_id']))) {
 651             unset($form->_values['fee'][$k]);
 652           }
 653         }
 654       }
 655     }
 656     if ($isPaidEvent && empty($form->_values['fee'])) {
 657       if (CRM_Utils_System::getClassName($form) != 'CRM_Event_Form_Participant') {
 658         CRM_Core_Error::statusBounce(ts('No Fee Level(s) or Price Set is configured for this event.<br />Click <a href=\'%1\'>CiviEvent >> Manage Event >> Configure >> Event Fees</a> to configure the Fee Level(s) or Price Set for this event.', array(1 => CRM_Utils_System::url('civicrm/event/manage/fee', 'reset=1&action=update&id=' . $form->_eventId))));
 659       }
 660     }
 661   }
 662
 663   /**
 664    * Handle process after the confirmation of payment by User.
 665    *
 666    * @param int $contactID
 667    * @param \CRM_Contribute_BAO_Contribution $contribution
 668    *
 669    * @throws \CiviCRM_API3_Exception
 670    */
 671   public function confirmPostProcess($contactID = NULL, $contribution = NULL) {
 672     // add/update contact information
 673     unset($this->_params['note']);
 674
 675     //to avoid conflict overwrite $this->_params
 676     $this->_params = $this->get('value');
 677
 678     //get the amount of primary participant
 679     if (!empty($this->_params['is_primary'])) {
 680       $this->_params['fee_amount'] = $this->get('primaryParticipantAmount');
 681     }
 682
 683     // add participant record
 684     $participant = $this->addParticipant($this, $contactID);
 685     $this->_participantIDS[] = $participant->id;
 686
 687     //setting register_by_id field and primaryContactId
 688     if (!empty($this->_params['is_primary'])) {
 689       $this->set('registerByID', $participant->id);
 690       $this->set('primaryContactId', $contactID);
 691
 692       // CRM-10032
 693       $this->processFirstParticipant($participant->id);
 694     }
 695
 696     if (!empty($this->_params['is_primary'])) {
 697       $this->_params['participantID'] = $participant->id;
 698       $this->set('primaryParticipant', $this->_params);
 699     }
 700
 701     CRM_Core_BAO_CustomValueTable::postProcess($this->_params,
 702       'civicrm_participant',
 703       $participant->id,
 704       'Participant'
 705     );
 706
 707     $createPayment = (CRM_Utils_Array::value('amount', $this->_params, 0) != 0) ? TRUE : FALSE;
 708
 709     // force to create zero amount payment, CRM-5095
 710     // we know the amout is zero since createPayment is false
 711     if (!$createPayment &&
 712       (isset($contribution) && $contribution->id) &&
 713       $this->_priceSetId &&
 714       $this->_lineItem
 715     ) {
 716       $createPayment = TRUE;
 717     }
 718
 719     if ($createPayment && $this->_values['event']['is_monetary'] && !empty($this->_params['contributionID'])) {
 720       $paymentParams = [
 721         'participant_id' => $participant->id,
 722         'contribution_id' => $contribution->id,
 723       ];
 724       civicrm_api3('ParticipantPayment', 'create', $paymentParams);
 725     }
 726
 727     $this->assign('action', $this->_action);
 728
 729     // create CMS user
 730     if (!empty($this->_params['cms_create_account'])) {
 731       $this->_params['contactID'] = $contactID;
 732
 733       if (array_key_exists('email-5', $this->_params)) {
 734         $mail = 'email-5';
 735       }
 736       else {
 737         foreach ($this->_params as $name => $dontCare) {
 738           if (substr($name, 0, 5) == 'email') {
 739             $mail = $name;
 740             break;
 741           }
 742         }
 743       }
 744
 745       // we should use primary email for
 746       // 1. pay later participant.
 747       // 2. waiting list participant.
 748       // 3. require approval participant.
 749       if (!empty($this->_params['is_pay_later']) ||
 750         $this->_allowWaitlist || $this->_requireApproval
 751       ) {
 752         $mail = 'email-Primary';
 753       }
 754
 755       if (!CRM_Core_BAO_CMSUser::create($this->_params, $mail)) {
 756         CRM_Core_Error::statusBounce(ts('Your profile is not saved and Account is not created.'));
 757       }
 758     }
 759   }
 760
 761   /**
 762    * Process the participant.
 763    *
 764    * @param CRM_Core_Form $form
 765    * @param int $contactID
 766    *
 767    * @return \CRM_Event_BAO_Participant
 768    * @throws \CiviCRM_API3_Exception
 769    */
 770   protected function addParticipant(&$form, $contactID) {
 771     if (empty($form->_params)) {
 772       return NULL;
 773     }
 774     // Note this used to be shared with the backoffice form & no longer is, some code may no longer be required.
 775     $params = $form->_params;
 776     $transaction = new CRM_Core_Transaction();
 777
 778     // handle register date CRM-4320
 779     $registerDate = NULL;
 780     if (!empty($form->_allowConfirmation) && $form->_participantId) {
 781       $registerDate = $params['participant_register_date'];
 782     }
 783     elseif (!empty($params['participant_register_date']) &&
 784       is_array($params['participant_register_date']) &&
 785       !empty($params['participant_register_date'])
 786     ) {
 787       $registerDate = CRM_Utils_Date::format($params['participant_register_date']);
 788     }
 789
 790     $participantFields = CRM_Event_DAO_Participant::fields();
 791     $participantParams = array(
 792       'id' => $params['participant_id'] ?? NULL,
 793       'contact_id' => $contactID,
 794       'event_id' => $form->_eventId ? $form->_eventId : $params['event_id'],
 795       'status_id' => CRM_Utils_Array::value('participant_status',
 796         $params, 1
 797       ),
 798       'role_id' => CRM_Utils_Array::value('participant_role_id', $params) ?: CRM_Event_BAO_Participant::getDefaultRoleID(),
 799       'register_date' => ($registerDate) ? $registerDate : date('YmdHis'),
 800       'source' => CRM_Utils_String::ellipsify(
 801         isset($params['participant_source']) ? CRM_Utils_Array::value('participant_source', $params) : CRM_Utils_Array::value('description', $params),
 802         $participantFields['participant_source']['maxlength']
 803       ),
 804       'fee_level' => $params['amount_level'] ?? NULL,
 805       'is_pay_later' => CRM_Utils_Array::value('is_pay_later', $params, 0),
 806       'fee_amount' => $params['fee_amount'] ?? NULL,
 807       'registered_by_id' => $params['registered_by_id'] ?? NULL,
 808       'discount_id' => $params['discount_id'] ?? NULL,
 809       'fee_currency' => $params['currencyID'] ?? NULL,
 810       'campaign_id' => $params['campaign_id'] ?? NULL,
 811     );
 812
 813     if ($form->_action & CRM_Core_Action::PREVIEW || CRM_Utils_Array::value('mode', $params) == 'test') {
 814       $participantParams['is_test'] = 1;
 815     }
 816     else {
 817       $participantParams['is_test'] = 0;
 818     }
 819
 820     if (!empty($form->_params['note'])) {
 821       $participantParams['note'] = $form->_params['note'];
 822     }
 823     elseif (!empty($form->_params['participant_note'])) {
 824       $participantParams['note'] = $form->_params['participant_note'];
 825     }
 826
 827     // reuse id if one already exists for this one (can happen
 828     // with back button being hit etc)
 829     if (!$participantParams['id'] && !empty($params['contributionID'])) {
 830       $pID = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_ParticipantPayment',
 831         $params['contributionID'],
 832         'participant_id',
 833         'contribution_id'
 834       );
 835       $participantParams['id'] = $pID;
 836     }
 837     $participantParams['discount_id'] = CRM_Core_BAO_Discount::findSet($form->_eventId, 'civicrm_event');
 838
 839     if (!$participantParams['discount_id']) {
 840       $participantParams['discount_id'] = "null";
 841     }
 842
 843     $participant = CRM_Event_BAO_Participant::create($participantParams);
 844
 845     $transaction->commit();
 846
 847     return $participant;
 848   }
 849
 850   /**
 851    * Calculate the total participant count as per params.
 852    *
 853    * @param CRM_Core_Form $form
 854    * @param array $params
 855    *   User params.
 856    * @param bool $skipCurrent
 857    *
 858    * @return int
 859    */
 860   public static function getParticipantCount(&$form, $params, $skipCurrent = FALSE) {
 861     $totalCount = 0;
 862     if (!is_array($params) || empty($params)) {
 863       return $totalCount;
 864     }
 865
 866     $priceSetId = $form->get('priceSetId');
 867     $addParticipantNum = substr($form->_name, 12);
 868     $priceSetFields = $priceSetDetails = [];
 869     $hasPriceFieldsCount = FALSE;
 870     if ($priceSetId) {
 871       $priceSetDetails = $form->get('priceSet');
 872       if (isset($priceSetDetails['optionsCountTotal'])
 873         && $priceSetDetails['optionsCountTotal']
 874       ) {
 875         $hasPriceFieldsCount = TRUE;
 876         $priceSetFields = $priceSetDetails['optionsCountDetails']['fields'];
 877       }
 878     }
 879
 880     $singleFormParams = FALSE;
 881     foreach ($params as $key => $val) {
 882       if (!is_numeric($key)) {
 883         $singleFormParams = TRUE;
 884         break;
 885       }
 886     }
 887
 888     //first format the params.
 889     if ($singleFormParams) {
 890       $params = self::formatPriceSetParams($form, $params);
 891       $params = array($params);
 892     }
 893
 894     foreach ($params as $key => $values) {
 895       if (!is_numeric($key) ||
 896         $values == 'skip' ||
 897         ($skipCurrent && ($addParticipantNum == $key))
 898       ) {
 899         continue;
 900       }
 901       $count = 1;
 902
 903       $usedCache = FALSE;
 904       $cacheCount = $form->_lineItemParticipantsCount[$key] ?? NULL;
 905       if ($cacheCount && is_numeric($cacheCount)) {
 906         $count = $cacheCount;
 907         $usedCache = TRUE;
 908       }
 909
 910       if (!$usedCache && $hasPriceFieldsCount) {
 911         $count = 0;
 912         foreach ($values as $valKey => $value) {
 913           if (strpos($valKey, 'price_') === FALSE) {
 914             continue;
 915           }
 916           $priceFieldId = substr($valKey, 6);
 917           if (!$priceFieldId ||
 918             !is_array($value) ||
 919             !array_key_exists($priceFieldId, $priceSetFields)
 920           ) {
 921             continue;
 922           }
 923           foreach ($value as $optId => $optVal) {
 924             $currentCount = $priceSetFields[$priceFieldId]['options'][$optId] * $optVal;
 925             if ($currentCount) {
 926               $count += $currentCount;
 927             }
 928           }
 929         }
 930         if (!$count) {
 931           $count = 1;
 932         }
 933       }
 934       $totalCount += $count;
 935     }
 936     if (!$totalCount) {
 937       $totalCount = 1;
 938     }
 939
 940     return $totalCount;
 941   }
 942
 943   /**
 944    * Format user submitted price set params.
 945    *
 946    * Convert price set each param as an array.
 947    *
 948    * @param CRM_Core_Form $form
 949    * @param array $params
 950    *   An array of user submitted params.
 951    *
 952    * @return array
 953    *   Formatted price set params.
 954    */
 955   public static function formatPriceSetParams(&$form, $params) {
 956     if (!is_array($params) || empty($params)) {
 957       return $params;
 958     }
 959
 960     $priceSetId = $form->get('priceSetId');
 961     if (!$priceSetId) {
 962       return $params;
 963     }
 964     $priceSetDetails = $form->get('priceSet');
 965
 966     foreach ($params as $key => & $value) {
 967       $vals = [];
 968       if (strpos($key, 'price_') !== FALSE) {
 969         $fieldId = substr($key, 6);
 970         if (!array_key_exists($fieldId, $priceSetDetails['fields']) ||
 971           is_array($value) ||
 972           !$value
 973         ) {
 974           continue;
 975         }
 976         $field = $priceSetDetails['fields'][$fieldId];
 977         if ($field['html_type'] == 'Text') {
 978           $fieldOption = current($field['options']);
 979           $value = array($fieldOption['id'] => $value);
 980         }
 981         else {
 982           $value = array($value => TRUE);
 983         }
 984       }
 985     }
 986
 987     return $params;
 988   }
 989
 990   /**
 991    * Calculate total count for each price set options.
 992    *
 993    * - currently selected by user.
 994    *
 995    * @param CRM_Core_Form $form
 996    *   Form object.
 997    *
 998    * @return array
 999    *   array of each option w/ count total.
1000    */
1001   public static function getPriceSetOptionCount(&$form) {
1002     $params = $form->get('params');
1003     $priceSet = $form->get('priceSet');
1004     $priceSetId = $form->get('priceSetId');
1005
1006     $optionsCount = [];
1007     if (!$priceSetId ||
1008       !is_array($priceSet) ||
1009       empty($priceSet) ||
1010       !is_array($params) ||
1011       empty($params)
1012     ) {
1013       return $optionsCount;
1014     }
1015
1016     $priceSetFields = $priceMaxFieldDetails = [];
1017     if (!empty($priceSet['optionsCountTotal'])) {
1018       $priceSetFields = $priceSet['optionsCountDetails']['fields'];
1019     }
1020
1021     if (!empty($priceSet['optionsMaxValueTotal'])) {
1022       $priceMaxFieldDetails = $priceSet['optionsMaxValueDetails']['fields'];
1023     }
1024
1025     $addParticipantNum = substr($form->_name, 12);
1026     foreach ($params as $pCnt => $values) {
1027       if ($values == 'skip' ||
1028         $pCnt === $addParticipantNum
1029       ) {
1030         continue;
1031       }
1032
1033       foreach ($values as $valKey => $value) {
1034         if (strpos($valKey, 'price_') === FALSE) {
1035           continue;
1036         }
1037
1038         $priceFieldId = substr($valKey, 6);
1039         if (!$priceFieldId ||
1040           !is_array($value) ||
1041           !(array_key_exists($priceFieldId, $priceSetFields) || array_key_exists($priceFieldId, $priceMaxFieldDetails))
1042         ) {
1043           continue;
1044         }
1045
1046         foreach ($value as $optId => $optVal) {
1047           if (CRM_Utils_Array::value('html_type', $priceSet['fields'][$priceFieldId]) == 'Text') {
1048             $currentCount = $optVal;
1049           }
1050           else {
1051             $currentCount = 1;
1052           }
1053
1054           if (isset($priceSetFields[$priceFieldId]) && isset($priceSetFields[$priceFieldId]['options'][$optId])) {
1055             $currentCount = $priceSetFields[$priceFieldId]['options'][$optId] * $optVal;
1056           }
1057
1058           $optionsCount[$optId] = $currentCount + CRM_Utils_Array::value($optId, $optionsCount, 0);
1059         }
1060       }
1061     }
1062
1063     return $optionsCount;
1064   }
1065
1066   /**
1067    * Check if template file exists.
1068    *
1069    * @param string $suffix
1070    *
1071    * @return null|string
1072    */
1073   public function checkTemplateFileExists($suffix = '') {
1074     if ($this->_eventId) {
1075       $templateName = $this->_name;
1076       if (substr($templateName, 0, 12) == 'Participant_') {
1077         $templateName = 'AdditionalParticipant';
1078       }
1079
1080       $templateFile = "CRM/Event/Form/Registration/{$this->_eventId}/{$templateName}.{$suffix}tpl";
1081       $template = CRM_Core_Form::getTemplate();
1082       if ($template->template_exists($templateFile)) {
1083         return $templateFile;
1084       }
1085     }
1086     return NULL;
1087   }
1088
1089   /**
1090    * Get template file name.
1091    *
1092    * @return null|string
1093    */
1094   public function getTemplateFileName() {
1095     $fileName = $this->checkTemplateFileExists();
1096     return $fileName ? $fileName : parent::getTemplateFileName();
1097   }
1098
1099   /**
1100    * Override extra template name.
1101    *
1102    * @return null|string
1103    */
1104   public function overrideExtraTemplateFileName() {
1105     $fileName = $this->checkTemplateFileExists('extra.');
1106     return $fileName ? $fileName : parent::overrideExtraTemplateFileName();
1107   }
1108
1109   /**
1110    * Reset values for all options those are full.
1111    *
1112    * @param array $optionFullIds
1113    * @param CRM_Core_Form $form
1114    */
1115   public static function resetElementValue($optionFullIds = [], &$form) {
1116     if (!is_array($optionFullIds) ||
1117       empty($optionFullIds) ||
1118       !$form->isSubmitted()
1119     ) {
1120       return;
1121     }
1122
1123     foreach ($optionFullIds as $fldId => $optIds) {
1124       $name = "price_$fldId";
1125       if (!$form->elementExists($name)) {
1126         continue;
1127       }
1128
1129       $element = $form->getElement($name);
1130       $eleType = $element->getType();
1131
1132       $resetSubmitted = FALSE;
1133       switch ($eleType) {
1134         case 'text':
1135           if ($element->getValue() && $element->isFrozen()) {
1136             $label = "{$element->getLabel()}<tt>(x)</tt>";
1137             $element->setLabel($label);
1138             $element->setPersistantFreeze();
1139             $resetSubmitted = TRUE;
1140           }
1141           break;
1142
1143         case 'group':
1144           if (is_array($element->_elements)) {
1145             foreach ($element->_elements as $child) {
1146               $childType = $child->getType();
1147               $methodName = 'getName';
1148               if ($childType) {
1149                 $methodName = 'getValue';
1150               }
1151               if (in_array($child->{$methodName}(), $optIds) && $child->isFrozen()) {
1152                 $resetSubmitted = TRUE;
1153                 $child->setPersistantFreeze();
1154               }
1155             }
1156           }
1157           break;
1158
1159         case 'select':
1160           $value = $element->getValue();
1161           if (in_array($value[0], $optIds)) {
1162             foreach ($element->_options as $option) {
1163               if ($option['attr']['value'] === "crm_disabled_opt-{$value[0]}") {
1164                 $placeholder = html_entity_decode($option['text'], ENT_QUOTES, "UTF-8");
1165                 $element->updateAttributes(array('placeholder' => $placeholder));
1166                 break;
1167               }
1168             }
1169             $resetSubmitted = TRUE;
1170           }
1171           break;
1172       }
1173
1174       //finally unset values from submitted.
1175       if ($resetSubmitted) {
1176         self::resetSubmittedValue($name, $optIds, $form);
1177       }
1178     }
1179   }
1180
1181   /**
1182    * Reset submitted value.
1183    *
1184    * @param string $elementName
1185    * @param array $optionIds
1186    * @param CRM_Core_Form $form
1187    */
1188   public static function resetSubmittedValue($elementName, $optionIds = [], &$form) {
1189     if (empty($elementName) ||
1190       !$form->elementExists($elementName) ||
1191       !$form->getSubmitValue($elementName)
1192     ) {
1193       return;
1194     }
1195     foreach (array(
1196       'constantValues',
1197       'submitValues',
1198       'defaultValues',
1199     ) as $val) {
1200       $values = $form->{"_$val"};
1201       if (!is_array($values) || empty($values)) {
1202         continue;
1203       }
1204       $eleVal = $values[$elementName] ?? NULL;
1205       if (empty($eleVal)) {
1206         continue;
1207       }
1208       if (is_array($eleVal)) {
1209         $found = FALSE;
1210         foreach ($eleVal as $keyId => $ignore) {
1211           if (in_array($keyId, $optionIds)) {
1212             $found = TRUE;
1213             unset($values[$elementName][$keyId]);
1214           }
1215         }
1216         if ($found && empty($values[$elementName][$keyId])) {
1217           $values[$elementName][$keyId] = NULL;
1218         }
1219       }
1220       else {
1221         if (!empty($keyId)) {
1222           $values[$elementName][$keyId] = NULL;
1223         }
1224       }
1225     }
1226   }
1227
1228   /**
1229    * Validate price set submitted params for price option limit.
1230    *
1231    * User should select at least one price field option.
1232    *
1233    * @param CRM_Core_Form $form
1234    * @param array $params
1235    *
1236    * @return array
1237    */
1238   public static function validatePriceSet(&$form, $params) {
1239     $errors = [];
1240     $hasOptMaxValue = FALSE;
1241     if (!is_array($params) || empty($params)) {
1242       return $errors;
1243     }
1244
1245     $currentParticipantNum = substr($form->_name, 12);
1246     if (!$currentParticipantNum) {
1247       $currentParticipantNum = 0;
1248     }
1249
1250     $priceSetId = $form->get('priceSetId');
1251     $priceSetDetails = $form->get('priceSet');
1252     if (
1253       !$priceSetId ||
1254       !is_array($priceSetDetails) ||
1255       empty($priceSetDetails)
1256     ) {
1257       return $errors;
1258     }
1259
1260     $optionsCountDetails = $optionsMaxValueDetails = [];
1261     if (
1262       isset($priceSetDetails['optionsMaxValueTotal'])
1263       && $priceSetDetails['optionsMaxValueTotal']
1264     ) {
1265       $hasOptMaxValue = TRUE;
1266       $optionsMaxValueDetails = $priceSetDetails['optionsMaxValueDetails']['fields'];
1267     }
1268     if (
1269       isset($priceSetDetails['optionsCountTotal'])
1270       && $priceSetDetails['optionsCountTotal']
1271     ) {
1272       $hasOptCount = TRUE;
1273       $optionsCountDetails = $priceSetDetails['optionsCountDetails']['fields'];
1274     }
1275     $feeBlock = $form->_feeBlock;
1276
1277     if (empty($feeBlock)) {
1278       $feeBlock = $priceSetDetails['fields'];
1279     }
1280
1281     $optionMaxValues = $fieldSelected = [];
1282     foreach ($params as $pNum => $values) {
1283       if (!is_array($values) || $values == 'skip') {
1284         continue;
1285       }
1286
1287       foreach ($values as $valKey => $value) {
1288         if (strpos($valKey, 'price_') === FALSE) {
1289           continue;
1290         }
1291         $priceFieldId = substr($valKey, 6);
1292         $noneOptionValueSelected = FALSE;
1293         if (!$feeBlock[$priceFieldId]['is_required'] && $value == 0) {
1294           $noneOptionValueSelected = TRUE;
1295         }
1296
1297         if (
1298           !$priceFieldId ||
1299           (!$noneOptionValueSelected && !is_array($value))
1300         ) {
1301           continue;
1302         }
1303
1304         $fieldSelected[$pNum] = TRUE;
1305
1306         if (!$hasOptMaxValue || !is_array($value)) {
1307           continue;
1308         }
1309
1310         foreach ($value as $optId => $optVal) {
1311           if (CRM_Utils_Array::value('html_type', $feeBlock[$priceFieldId]) == 'Text') {
1312             $currentMaxValue = $optVal;
1313           }
1314           else {
1315             $currentMaxValue = 1;
1316           }
1317
1318           if (isset($optionsCountDetails[$priceFieldId]) && isset($optionsCountDetails[$priceFieldId]['options'][$optId])) {
1319             $currentMaxValue = $optionsCountDetails[$priceFieldId]['options'][$optId] * $optVal;
1320           }
1321           if (empty($optionMaxValues)) {
1322             $optionMaxValues[$priceFieldId][$optId] = $currentMaxValue;
1323           }
1324           else {
1325             $optionMaxValues[$priceFieldId][$optId]
1326               = $currentMaxValue + CRM_Utils_Array::value($optId, CRM_Utils_Array::value($priceFieldId, $optionMaxValues), 0);
1327           }
1328           $soldOutPnum[$optId] = $pNum;
1329         }
1330       }
1331
1332       //validate for price field selection.
1333       if (empty($fieldSelected[$pNum])) {
1334         $errors[$pNum]['_qf_default'] = ts('Select at least one option from Event Fee(s).');
1335       }
1336     }
1337
1338     //validate for option max value.
1339     foreach ($optionMaxValues as $fieldId => $values) {
1340       $options = CRM_Utils_Array::value('options', $feeBlock[$fieldId], []);
1341       foreach ($values as $optId => $total) {
1342         $optMax = $optionsMaxValueDetails[$fieldId]['options'][$optId];
1343         $opDbCount = CRM_Utils_Array::value('db_total_count', $options[$optId], 0);
1344         $total += $opDbCount;
1345         if ($optMax && ($total > $optMax)) {
1346           if ($opDbCount && ($opDbCount >= $optMax)) {
1347             $errors[$soldOutPnum[$optId]]["price_{$fieldId}"]
1348               = ts('Sorry, this option is currently sold out.');
1349           }
1350           elseif (($optMax - $opDbCount) == 1) {
1351             $errors[$soldOutPnum[$optId]]["price_{$fieldId}"]
1352               = ts('Sorry, currently only a single space is available for this option.', array(1 => ($optMax - $opDbCount)));
1353           }
1354           else {
1355             $errors[$soldOutPnum[$optId]]["price_{$fieldId}"]
1356               = ts('Sorry, currently only %1 spaces are available for this option.', array(1 => ($optMax - $opDbCount)));
1357           }
1358         }
1359       }
1360     }
1361     return $errors;
1362   }
1363
1364   /**
1365    * Set the first participant ID if not set.
1366    *
1367    * CRM-10032.
1368    *
1369    * @param int $participantID
1370    */
1371   public function processFirstParticipant($participantID) {
1372     $this->_participantId = $participantID;
1373     $this->set('participantId', $this->_participantId);
1374
1375     $ids = $participantValues = [];
1376     $participantParams = array('id' => $this->_participantId);
1377     CRM_Event_BAO_Participant::getValues($participantParams, $participantValues, $ids);
1378     $this->_values['participant'] = $participantValues[$this->_participantId];
1379     $this->set('values', $this->_values);
1380
1381     // also set the allow confirmation stuff
1382     if (array_key_exists(
1383       $this->_values['participant']['status_id'],
1384       CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Pending'")
1385     )) {
1386       $this->_allowConfirmation = TRUE;
1387       $this->set('allowConfirmation', TRUE);
1388     }
1389   }
1390
1391   /**
1392    * Check if event is valid.
1393    *
1394    * @todo - combine this with CRM_Event_BAO_Event::validRegistrationRequest
1395    * (probably extract relevant values here & call that with them & handle bounces & redirects here -as
1396    * those belong in the form layer)
1397    *
1398    * @param string $redirect
1399    */
1400   public function checkValidEvent($redirect = NULL) {
1401     // is the event active (enabled)?
1402     if (!$this->_values['event']['is_active']) {
1403       // form is inactive, die a fatal death
1404       CRM_Core_Error::statusBounce(ts('The event you requested is currently unavailable (contact the site administrator for assistance).'));
1405     }
1406
1407     // is online registration is enabled?
1408     if (!$this->_values['event']['is_online_registration']) {
1409       CRM_Core_Error::statusBounce(ts('Online registration is not currently available for this event (contact the site administrator for assistance).'), $redirect);
1410     }
1411
1412     // is this an event template ?
1413     if (!empty($this->_values['event']['is_template'])) {
1414       CRM_Core_Error::statusBounce(ts('Event templates are not meant to be registered.'), $redirect);
1415     }
1416
1417     $now = date('YmdHis');
1418     $startDate = CRM_Utils_Date::processDate(CRM_Utils_Array::value('registration_start_date',
1419       $this->_values['event']
1420     ));
1421
1422     if (
1423       $startDate &&
1424       $startDate >= $now
1425     ) {
1426       CRM_Core_Error::statusBounce(ts('Registration for this event begins on %1', array(1 => CRM_Utils_Date::customFormat(CRM_Utils_Array::value('registration_start_date', $this->_values['event'])))), $redirect, ts('Sorry'));
1427     }
1428
1429     $regEndDate = CRM_Utils_Date::processDate(CRM_Utils_Array::value('registration_end_date',
1430       $this->_values['event']
1431     ));
1432     $eventEndDate = CRM_Utils_Date::processDate(CRM_Utils_Array::value('event_end_date', $this->_values['event']));
1433     if (($regEndDate && ($regEndDate < $now)) || (empty($regEndDate) && !empty($eventEndDate) && ($eventEndDate < $now))) {
1434       $endDate = CRM_Utils_Date::customFormat(CRM_Utils_Array::value('registration_end_date', $this->_values['event']));
1435       if (empty($regEndDate)) {
1436         $endDate = CRM_Utils_Date::customFormat(CRM_Utils_Array::value('event_end_date', $this->_values['event']));
1437       }
1438       CRM_Core_Error::statusBounce(ts('Registration for this event ended on %1', array(1 => $endDate)), $redirect, ts('Sorry'));
1439     }
1440   }
1441
1442   /**
1443    * Get the amount level for the event payment.
1444    *
1445    * The amount level is the string stored on the contribution record that describes the purchase.
1446    *
1447    * @param array $params
1448    * @param int|null $discountID
1449    *
1450    * @return string
1451    */
1452   protected function getAmountLevel($params, $discountID) {
1453     // @todo move handling of discount ID to the BAO function - preferably by converting it to a price_set with
1454     // time settings.
1455     if (!empty($this->_values['discount'][$discountID])) {
1456       return $this->_values['discount'][$discountID][$params['amount']]['label'];
1457     }
1458     if (empty($params['priceSetId'])) {
1459       // CRM-17509 An example of this is where the person is being waitlisted & there is no payment.
1460       // ideally we would have calculated amount first & only call this is there is an
1461       // amount but the flow needs more changes for that.
1462       return '';
1463     }
1464     return CRM_Price_BAO_PriceSet::getAmountLevelText($params);
1465   }
1466
1467   /**
1468    * Process Registration of free event.
1469    *
1470    * @param array $params
1471    *   Form values.
1472    * @param int $contactID
1473    *
1474    * @throws \CiviCRM_API3_Exception
1475    */
1476   public function processRegistration($params, $contactID = NULL) {
1477     $session = CRM_Core_Session::singleton();
1478     $this->_participantInfo = [];
1479
1480     // CRM-4320, lets build array of cancelled additional participant ids
1481     // those are drop or skip by primary at the time of confirmation.
1482     // get all in and then unset those are confirmed.
1483     $cancelledIds = $this->_additionalParticipantIds;
1484
1485     $participantCount = [];
1486     foreach ($params as $participantNum => $record) {
1487       if ($record == 'skip') {
1488         $participantCount[$participantNum] = 'skip';
1489       }
1490       elseif ($participantNum) {
1491         $participantCount[$participantNum] = 'participant';
1492       }
1493     }
1494
1495     $registerByID = NULL;
1496     foreach ($params as $key => $value) {
1497       if ($value != 'skip') {
1498         $fields = NULL;
1499
1500         // setting register by Id and unset contactId.
1501         if (empty($value['is_primary'])) {
1502           $contactID = NULL;
1503           $registerByID = $this->get('registerByID');
1504           if ($registerByID) {
1505             $value['registered_by_id'] = $registerByID;
1506           }
1507           // get an email if one exists for the participant
1508           $participantEmail = '';
1509           foreach (array_keys($value) as $valueName) {
1510             if (substr($valueName, 0, 6) == 'email-') {
1511               $participantEmail = $value[$valueName];
1512             }
1513           }
1514           if ($participantEmail) {
1515             $this->_participantInfo[] = $participantEmail;
1516           }
1517           else {
1518             $this->_participantInfo[] = $value['first_name'] . ' ' . $value['last_name'];
1519           }
1520         }
1521         elseif (!empty($value['contact_id'])) {
1522           $contactID = $value['contact_id'];
1523         }
1524         else {
1525           $contactID = $this->getContactID();
1526         }
1527
1528         CRM_Event_Form_Registration_Confirm::fixLocationFields($value, $fields, $this);
1529         //for free event or additional participant, dont create billing email address.
1530         if (empty($value['is_primary']) || !$this->_values['event']['is_monetary']) {
1531           unset($value["email-{$this->_bltID}"]);
1532         }
1533
1534         $contactID = CRM_Event_Form_Registration_Confirm::updateContactFields($contactID, $value, $fields, $this);
1535
1536         // lets store the contactID in the session
1537         // we dont store in userID in case the user is doing multiple
1538         // transactions etc
1539         // for things like tell a friend
1540         if (!$this->getContactID() && !empty($value['is_primary'])) {
1541           $session->set('transaction.userID', $contactID);
1542         }
1543
1544         //lets get the status if require approval or waiting.
1545
1546         $waitingStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Waiting'");
1547         if ($this->_allowWaitlist && !$this->_allowConfirmation) {
1548           $value['participant_status_id'] = $value['participant_status'] = array_search('On waitlist', $waitingStatuses);
1549         }
1550         elseif ($this->_requireApproval && !$this->_allowConfirmation) {
1551           $value['participant_status_id'] = $value['participant_status'] = array_search('Awaiting approval', $waitingStatuses);
1552         }
1553
1554         $this->set('value', $value);
1555         $this->confirmPostProcess($contactID, NULL);
1556
1557         //lets get additional participant id to cancel.
1558         if ($this->_allowConfirmation && is_array($cancelledIds)) {
1559           $additonalId = $value['participant_id'] ?? NULL;
1560           if ($additonalId && $key = array_search($additonalId, $cancelledIds)) {
1561             unset($cancelledIds[$key]);
1562           }
1563         }
1564       }
1565     }
1566
1567     // update status and send mail to cancelled additional participants, CRM-4320
1568     if ($this->_allowConfirmation && is_array($cancelledIds) && !empty($cancelledIds)) {
1569       $cancelledId = array_search('Cancelled',
1570         CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Negative'")
1571       );
1572       CRM_Event_BAO_Participant::transitionParticipants($cancelledIds, $cancelledId);
1573     }
1574
1575     //set information about additional participants if exists
1576     if (count($this->_participantInfo)) {
1577       $this->set('participantInfo', $this->_participantInfo);
1578     }
1579
1580     //send mail Confirmation/Receipt
1581     if ($this->_contributeMode != 'checkout' ||
1582       $this->_contributeMode != 'notify'
1583     ) {
1584       $this->sendMails($params, $registerByID, $participantCount);
1585     }
1586   }
1587
1588   /**
1589    * Send Mail to participants.
1590    *
1591    * @param $params
1592    * @param $registerByID
1593    * @param array $participantCount
1594    *
1595    * @throws \CiviCRM_API3_Exception
1596    */
1597   private function sendMails($params, $registerByID, array $participantCount) {
1598     $isTest = FALSE;
1599     if ($this->_action & CRM_Core_Action::PREVIEW) {
1600       $isTest = TRUE;
1601     }
1602
1603     //handle if no additional participant.
1604     if (!$registerByID) {
1605       $registerByID = $this->get('registerByID');
1606     }
1607     $primaryContactId = $this->get('primaryContactId');
1608
1609     //build an array of custom profile and assigning it to template.
1610     $additionalIDs = CRM_Event_BAO_Event::buildCustomProfile($registerByID, NULL,
1611       $primaryContactId, $isTest, TRUE
1612     );
1613
1614     //lets carry all participant params w/ values.
1615     foreach ($additionalIDs as $participantID => $contactId) {
1616       $participantNum = NULL;
1617       if ($participantID == $registerByID) {
1618         $participantNum = 0;
1619       }
1620       else {
1621         if ($participantNum = array_search('participant', $participantCount)) {
1622           unset($participantCount[$participantNum]);
1623         }
1624       }
1625
1626       if ($participantNum === NULL) {
1627         break;
1628       }
1629
1630       //carry the participant submitted values.
1631       $this->_values['params'][$participantID] = $params[$participantNum];
1632     }
1633
1634     //lets send  mails to all with meanigful text, CRM-4320.
1635     $this->assign('isOnWaitlist', $this->_allowWaitlist);
1636     $this->assign('isRequireApproval', $this->_requireApproval);
1637
1638     foreach ($additionalIDs as $participantID => $contactId) {
1639       if ($participantID == $registerByID) {
1640         //set as Primary Participant
1641         $this->assign('isPrimary', 1);
1642
1643         $customProfile = CRM_Event_BAO_Event::buildCustomProfile($participantID, $this->_values, NULL, $isTest);
1644
1645         if (count($customProfile)) {
1646           $this->assign('customProfile', $customProfile);
1647           $this->set('customProfile', $customProfile);
1648         }
1649       }
1650       else {
1651         $this->assign('isPrimary', 0);
1652         $this->assign('customProfile', NULL);
1653       }
1654
1655       //send Confirmation mail to Primary & additional Participants if exists
1656       CRM_Event_BAO_Event::sendMail($contactId, $this->_values, $participantID, $isTest);
1657     }
1658   }
1659
1660 }