CRM/Event/BAO/Participant.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.6                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2014                                |
   7  +--------------------------------------------------------------------+
   8  | This file is a part of CiviCRM.                                    |
   9  |                                                                    |
  10  | CiviCRM is free software; you can copy, modify, and distribute it  |
  11  | under the terms of the GNU Affero General Public License           |
  12  | Version 3, 19 November 2007 and the CiviCRM Licensing Exception.   |
  13  |                                                                    |
  14  | CiviCRM is distributed in the hope that it will be useful, but     |
  15  | WITHOUT ANY WARRANTY; without even the implied warranty of         |
  16  | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.               |
  17  | See the GNU Affero General Public License for more details.        |
  18  |                                                                    |
  19  | You should have received a copy of the GNU Affero General Public   |
  20  | License and the CiviCRM Licensing Exception along                  |
  21  | with this program; if not, contact CiviCRM LLC                     |
  22  | at info[AT]civicrm[DOT]org. If you have questions about the        |
  23  | GNU Affero General Public License or the licensing of CiviCRM,     |
  24  | see the CiviCRM license FAQ at http://civicrm.org/licensing        |
  25  +--------------------------------------------------------------------+
  26
  27 */
  28
  29 /**
  30  *
  31  *
  32  * @package CRM
  33  * @copyright CiviCRM LLC (c) 2004-2014
  34  * $Id$
  35  *
  36  */
  37 class CRM_Event_BAO_Participant extends CRM_Event_DAO_Participant {
  38
  39   /**
  40    * Static field for all the participant information that we can potentially import
  41    *
  42    * @var array
  43    * @static
  44    */
  45   static $_importableFields = NULL;
  46
  47   /**
  48    * Static field for all the participant information that we can potentially export
  49    *
  50    * @var array
  51    * @static
  52    */
  53   static $_exportableFields = NULL;
  54
  55   /**
  56    * Static array for valid status transitions rules
  57    *
  58    * @var array
  59    * @static
  60    */
  61   static $_statusTransitionsRules = array(
  62     'Pending from pay later' => array('Registered', 'Cancelled'),
  63     'Pending from incomplete transaction' => array('Registered', 'Cancelled'),
  64     'On waitlist' => array('Cancelled', 'Pending from waitlist'),
  65     'Pending from waitlist' => array('Registered', 'Cancelled'),
  66     'Awaiting approval' => array('Cancelled', 'Pending from approval'),
  67     'Pending from approval' => array('Registered', 'Cancelled'),
  68   );
  69
  70   /**
  71    */
  72   public function __construct() {
  73     parent::__construct();
  74   }
  75
  76   /**
  77    * Takes an associative array and creates a participant object
  78    *
  79    * the function extract all the params it needs to initialize the create a
  80    * participant object. the params array could contain additional unused name/value
  81    * pairs
  82    *
  83    * @param array $params
  84    *   (reference ) an assoc array of name/value pairs.
  85    *
  86    * @return CRM_Event_BAO_Participant object
  87    * @static
  88    */
  89   public static function &add(&$params) {
  90
  91     if (!empty($params['id'])) {
  92       CRM_Utils_Hook::pre('edit', 'Participant', $params['id'], $params);
  93     }
  94     else {
  95       CRM_Utils_Hook::pre('create', 'Participant', NULL, $params);
  96     }
  97
  98     // converting dates to mysql format
  99     if (!empty($params['register_date'])) {
 100       $params['register_date'] = CRM_Utils_Date::isoToMysql($params['register_date']);
 101     }
 102
 103     if (!empty($params['participant_fee_amount'])) {
 104       $params['participant_fee_amount'] = CRM_Utils_Rule::cleanMoney($params['participant_fee_amount']);
 105     }
 106
 107     if (!empty($params['fee_amount'])) {
 108       $params['fee_amount'] = CRM_Utils_Rule::cleanMoney($params['fee_amount']);
 109     }
 110
 111     // ensure that role ids are encoded as a string
 112     if (isset($params['role_id']) && is_array($params['role_id'])) {
 113       $params['role_id'] = implode(CRM_Core_DAO::VALUE_SEPARATOR, $params['role_id']);
 114     }
 115
 116     $participantBAO = new CRM_Event_BAO_Participant;
 117     if (!empty($params['id'])) {
 118       $participantBAO->id = CRM_Utils_Array::value('id', $params);
 119       $participantBAO->find(TRUE);
 120       $participantBAO->register_date = CRM_Utils_Date::isoToMysql($participantBAO->register_date);
 121     }
 122
 123     $participantBAO->copyValues($params);
 124
 125     //CRM-6910
 126     //1. If currency present, it should be valid one.
 127     //2. We should have currency when amount is not null.
 128     $currency = $participantBAO->fee_currency;
 129     if ($currency ||
 130       !CRM_Utils_System::isNull($participantBAO->fee_amount)
 131     ) {
 132       if (!CRM_Utils_Rule::currencyCode($currency)) {
 133         $config = CRM_Core_Config::singleton();
 134         $currency = $config->defaultCurrency;
 135       }
 136     }
 137     $participantBAO->fee_currency = $currency;
 138
 139     $participantBAO->save();
 140
 141     $session = CRM_Core_Session::singleton();
 142
 143     // reset the group contact cache for this group
 144     CRM_Contact_BAO_GroupContactCache::remove();
 145
 146     if (!empty($params['id'])) {
 147       CRM_Utils_Hook::post('edit', 'Participant', $participantBAO->id, $participantBAO);
 148     }
 149     else {
 150       CRM_Utils_Hook::post('create', 'Participant', $participantBAO->id, $participantBAO);
 151     }
 152
 153     return $participantBAO;
 154   }
 155
 156   /**
 157    * Given the list of params in the params array, fetch the object
 158    * and store the values in the values array
 159    *
 160    * @param array $params
 161    *   Input parameters to find object.
 162    * @param array $values
 163    *   Output values of the object.
 164    *
 165    * @param $ids
 166    *
 167    * @return CRM_Event_BAO_Participant|null the found object or null
 168    * @static
 169    */
 170   public static function getValues(&$params, &$values, &$ids) {
 171     if (empty($params)) {
 172       return NULL;
 173     }
 174     $participant = new CRM_Event_BAO_Participant();
 175     $participant->copyValues($params);
 176     $participant->find();
 177     $participants = array();
 178     while ($participant->fetch()) {
 179       $ids['participant'] = $participant->id;
 180       CRM_Core_DAO::storeValues($participant, $values[$participant->id]);
 181       $participants[$participant->id] = $participant;
 182     }
 183     return $participants;
 184   }
 185
 186   /**
 187    * Takes an associative array and creates a participant object
 188    *
 189    * @param array $params
 190    *   (reference ) an assoc array of name/value pairs.
 191    *
 192    * @return CRM_Event_BAO_Participant object
 193    * @static
 194    */
 195   public static function create(&$params) {
 196
 197     $transaction = new CRM_Core_Transaction();
 198     $status = NULL;
 199
 200     if (!empty($params['id'])) {
 201       $status = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Participant', $params['id'], 'status_id');
 202     }
 203
 204     $participant = self::add($params);
 205
 206     if (is_a($participant, 'CRM_Core_Error')) {
 207       $transaction->rollback();
 208       return $participant;
 209     }
 210
 211     if ((!CRM_Utils_Array::value('id', $params)) ||
 212       (isset($params['status_id']) && $params['status_id'] != $status)
 213     ) {
 214       CRM_Activity_BAO_Activity::addActivity($participant);
 215     }
 216
 217     //CRM-5403
 218     //for update mode
 219     if (self::isPrimaryParticipant($participant->id) && $status) {
 220       self::updateParticipantStatus($participant->id, $status, $participant->status_id);
 221     }
 222
 223     $session = CRM_Core_Session::singleton();
 224     $id = $session->get('userID');
 225     if (!$id) {
 226       $id = CRM_Utils_Array::value('contact_id', $params);
 227     }
 228
 229     // add custom field values
 230     if (!empty($params['custom']) &&
 231       is_array($params['custom'])
 232     ) {
 233       CRM_Core_BAO_CustomValueTable::store($params['custom'], 'civicrm_participant', $participant->id);
 234     }
 235
 236     //process note, CRM-7634
 237     $noteId = NULL;
 238     if (!empty($params['id'])) {
 239       $note = CRM_Core_BAO_Note::getNote($params['id'], 'civicrm_participant');
 240       $noteId = key($note);
 241     }
 242     $noteValue = NULL;
 243     $hasNoteField = FALSE;
 244     foreach (array(
 245                'note',
 246                'participant_note',
 247              ) as $noteFld) {
 248       if (array_key_exists($noteFld, $params)) {
 249         $noteValue = $params[$noteFld];
 250         $hasNoteField = TRUE;
 251         break;
 252       }
 253     }
 254     if ($noteId || $noteValue) {
 255       if ($noteValue) {
 256         $noteParams = array(
 257           'entity_table' => 'civicrm_participant',
 258           'note' => $noteValue,
 259           'entity_id' => $participant->id,
 260           'contact_id' => $id,
 261           'modified_date' => date('Ymd'),
 262         );
 263         $noteIDs = array();
 264         if ($noteId) {
 265           $noteIDs['id'] = $noteId;
 266         }
 267         CRM_Core_BAO_Note::add($noteParams, $noteIDs);
 268       }
 269       elseif ($noteId && $hasNoteField) {
 270         CRM_Core_BAO_Note::del($noteId, FALSE);
 271       }
 272     }
 273
 274     // Log the information on successful add/edit of Participant data.
 275     $logParams = array(
 276       'entity_table' => 'civicrm_participant',
 277       'entity_id' => $participant->id,
 278       'data' => CRM_Event_PseudoConstant::participantStatus($participant->status_id),
 279       'modified_id' => $id,
 280       'modified_date' => date('Ymd'),
 281     );
 282
 283     CRM_Core_BAO_Log::add($logParams);
 284
 285     $params['participant_id'] = $participant->id;
 286
 287     $transaction->commit();
 288
 289     // do not add to recent items for import, CRM-4399
 290     if (empty($params['skipRecentView'])) {
 291
 292       $url = CRM_Utils_System::url('civicrm/contact/view/participant',
 293         "action=view&reset=1&id={$participant->id}&cid={$participant->contact_id}&context=home"
 294       );
 295
 296       $recentOther = array();
 297       if (CRM_Core_Permission::check('edit event participants')) {
 298         $recentOther['editUrl'] = CRM_Utils_System::url('civicrm/contact/view/participant',
 299           "action=update&reset=1&id={$participant->id}&cid={$participant->contact_id}&context=home"
 300         );
 301       }
 302       if (CRM_Core_Permission::check('delete in CiviEvent')) {
 303         $recentOther['deleteUrl'] = CRM_Utils_System::url('civicrm/contact/view/participant',
 304           "action=delete&reset=1&id={$participant->id}&cid={$participant->contact_id}&context=home"
 305         );
 306       }
 307
 308       $participantRoles = CRM_Event_PseudoConstant::participantRole();
 309
 310       if ($participant->role_id) {
 311         $role = explode(CRM_Core_DAO::VALUE_SEPARATOR, $participant->role_id);
 312
 313         foreach ($role as & $roleValue) {
 314           if (isset($roleValue)) {
 315             $roleValue = $participantRoles[$roleValue];
 316           }
 317         }
 318         $roles = implode(', ', $role);
 319       }
 320
 321       $roleString = empty($roles) ? '' : $roles;
 322       $eventTitle = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Event', $participant->event_id, 'title');
 323       $title = CRM_Contact_BAO_Contact::displayName($participant->contact_id) . ' (' . $roleString . ' - ' . $eventTitle . ')';
 324
 325       // add the recently created Participant
 326       CRM_Utils_Recent::add($title,
 327         $url,
 328         $participant->id,
 329         'Participant',
 330         $participant->contact_id,
 331         NULL,
 332         $recentOther
 333       );
 334     }
 335
 336     return $participant;
 337   }
 338
 339   /**
 340    * Check whether the event is full for participation and return as
 341    * per requirements.
 342    *
 343    * @param int $eventId
 344    *   Event id.
 345    * @param bool $returnEmptySeats
 346    *   Are we require number if empty seats.
 347    * @param bool $includeWaitingList
 348    *   Consider waiting list in event full.
 349    *                 calculation or not. (it is for cron job  purpose)
 350    *
 351    * @param bool $returnWaitingCount
 352    * @param bool $considerTestParticipant
 353    *
 354    * @return bool|int|null|string 1. false                 => If event having some empty spaces.
 355    * @static
 356    */
 357   static function eventFull(
 358     $eventId,
 359     $returnEmptySeats = FALSE,
 360     $includeWaitingList = TRUE,
 361     $returnWaitingCount = FALSE,
 362     $considerTestParticipant = FALSE
 363   ) {
 364     $result = NULL;
 365     if (!$eventId) {
 366       return $result;
 367     }
 368
 369     // consider event is full when.
 370     // 1. (count(is_counted) >= event_size) or
 371     // 2. (count(participants-with-status-on-waitlist) > 0)
 372     // It might be case there are some empty spaces and still event
 373     // is full, as waitlist might represent group require spaces > empty.
 374
 375     $participantRoles = CRM_Event_PseudoConstant::participantRole(NULL, 'filter = 1');
 376     $countedStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, 'is_counted = 1');
 377     $waitingStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Waiting'");
 378     $onWaitlistStatusId = array_search('On waitlist', $waitingStatuses);
 379
 380     //when we do require only waiting count don't consider counted.
 381     if (!$returnWaitingCount && !empty($countedStatuses)) {
 382       $allStatusIds = array_keys($countedStatuses);
 383     }
 384
 385     $where = array(' event.id = %1 ');
 386     if (!$considerTestParticipant) {
 387       $where[] = ' ( participant.is_test = 0 OR participant.is_test IS NULL ) ';
 388     }
 389     if (!empty($participantRoles)) {
 390       $where[] = ' participant.role_id IN ( ' . implode(', ', array_keys($participantRoles)) . ' ) ';
 391     }
 392
 393     $eventParams = array(1 => array($eventId, 'Positive'));
 394
 395     //in case any waiting, straight forward event is full.
 396     if ($includeWaitingList && $onWaitlistStatusId) {
 397
 398       //build the where clause.
 399       $whereClause = ' WHERE ' . implode(' AND ', $where);
 400       $whereClause .= " AND participant.status_id = $onWaitlistStatusId ";
 401       $eventSeatsWhere = implode(' AND ', $where) . " AND ( participant.status_id = $onWaitlistStatusId )";
 402
 403       $query = "
 404     SELECT  participant.id id,
 405             event.event_full_text as event_full_text
 406       FROM  civicrm_participant participant
 407 INNER JOIN  civicrm_event event ON ( event.id = participant.event_id )
 408             {$whereClause}";
 409
 410       $eventFullText = ts('This event is full.');
 411       $participants = CRM_Core_DAO::executeQuery($query, $eventParams);
 412       while ($participants->fetch()) {
 413         //oops here event is full and we don't want waiting count.
 414         if ($returnWaitingCount) {
 415           return CRM_Event_BAO_Event::eventTotalSeats($eventId, $eventSeatsWhere);
 416         }
 417         else {
 418           return ($participants->event_full_text) ? $participants->event_full_text : $eventFullText;
 419         }
 420       }
 421     }
 422
 423     //consider only counted participants.
 424     $where[] = ' participant.status_id IN ( ' . implode(', ', array_keys($countedStatuses)) . ' ) ';
 425     $whereClause = ' WHERE ' . implode(' AND ', $where);
 426     $eventSeatsWhere = implode(' AND ', $where);
 427
 428     $query = "
 429     SELECT  participant.id id,
 430             event.event_full_text as event_full_text,
 431             event.max_participants as max_participants
 432       FROM  civicrm_participant participant
 433 INNER JOIN  civicrm_event event ON ( event.id = participant.event_id )
 434             {$whereClause}";
 435
 436     $eventMaxSeats = NULL;
 437     $eventFullText = ts('This event is full.');
 438     $participants = CRM_Core_DAO::executeQuery($query, $eventParams);
 439     while ($participants->fetch()) {
 440       if ($participants->event_full_text) {
 441         $eventFullText = $participants->event_full_text;
 442       }
 443       $eventMaxSeats = $participants->max_participants;
 444       //don't have limit for event seats.
 445       if ($participants->max_participants == NULL) {
 446         return $result;
 447       }
 448     }
 449
 450     //get the total event seats occupied by these participants.
 451     $eventRegisteredSeats = CRM_Event_BAO_Event::eventTotalSeats($eventId, $eventSeatsWhere);
 452
 453     if ($eventRegisteredSeats) {
 454       if ($eventRegisteredSeats >= $eventMaxSeats) {
 455         $result = $eventFullText;
 456       }
 457       elseif ($returnEmptySeats) {
 458         $result = $eventMaxSeats - $eventRegisteredSeats;
 459       }
 460       return $result;
 461     }
 462     else {
 463       $query = '
 464 SELECT  event.event_full_text,
 465         event.max_participants
 466   FROM  civicrm_event event
 467  WHERE  event.id = %1';
 468       $event = CRM_Core_DAO::executeQuery($query, $eventParams);
 469       while ($event->fetch()) {
 470         $eventFullText = $event->event_full_text;
 471         $eventMaxSeats = $event->max_participants;
 472       }
 473     }
 474
 475     // no limit for registration.
 476     if ($eventMaxSeats == NULL) {
 477       return $result;
 478     }
 479     if ($eventMaxSeats) {
 480       return ($returnEmptySeats) ? (int) $eventMaxSeats : FALSE;
 481     }
 482
 483     return $eventFullText;
 484   }
 485
 486   /**
 487    * Return the array of all price set field options,
 488    * with total participant count that field going to carry.
 489    *
 490    * @param int $eventId
 491    *   Event id.
 492    * @param array $skipParticipantIds
 493    *   An array of participant ids those we should skip.
 494    * @param bool $considerCounted
 495    * @param bool $considerWaiting
 496    * @param bool $considerTestParticipants
 497    *
 498    * @return array
 499    *   an array of each option id and total count
 500    * @static
 501    */
 502   static function priceSetOptionsCount(
 503     $eventId,
 504     $skipParticipantIds = array(),
 505     $considerCounted = TRUE,
 506     $considerWaiting = TRUE,
 507     $considerTestParticipants = FALSE
 508   ) {
 509     $optionsCount = array();
 510     if (!$eventId) {
 511       return $optionsCount;
 512     }
 513
 514     $allStatusIds = array();
 515     if ($considerCounted) {
 516       $countedStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, 'is_counted = 1');
 517       $allStatusIds = array_merge($allStatusIds, array_keys($countedStatuses));
 518     }
 519     if ($considerWaiting) {
 520       $waitingStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Waiting'");
 521       $allStatusIds = array_merge($allStatusIds, array_keys($waitingStatuses));
 522     }
 523     $statusIdClause = NULL;
 524     if (!empty($allStatusIds)) {
 525       $statusIdClause = ' AND participant.status_id IN ( ' . implode(', ', array_values($allStatusIds)) . ')';
 526     }
 527
 528     $isTestClause = NULL;
 529     if (!$considerTestParticipants) {
 530       $isTestClause = ' AND ( participant.is_test IS NULL OR participant.is_test = 0 )';
 531     }
 532
 533     $skipParticipantClause = NULL;
 534     if (is_array($skipParticipantIds) && !empty($skipParticipantIds)) {
 535       $skipParticipantClause = ' AND participant.id NOT IN ( ' . implode(', ', $skipParticipantIds) . ')';
 536     }
 537
 538     $sql = "
 539     SELECT  line.id as lineId,
 540             line.entity_id as entity_id,
 541             line.qty,
 542             value.id as valueId,
 543             value.count,
 544             field.html_type
 545       FROM  civicrm_line_item line
 546 INNER JOIN  civicrm_participant participant ON ( line.entity_table  = 'civicrm_participant'
 547                                                  AND participant.id = line.entity_id )
 548 INNER JOIN  civicrm_price_field_value value ON ( value.id = line.price_field_value_id )
 549 INNER JOIN  civicrm_price_field field       ON ( value.price_field_id = field.id )
 550      WHERE  participant.event_id = %1
 551             {$statusIdClause}
 552             {$isTestClause}
 553             {$skipParticipantClause}";
 554
 555     $lineItem = CRM_Core_DAO::executeQuery($sql, array(1 => array($eventId, 'Positive')));
 556     while ($lineItem->fetch()) {
 557       $count = $lineItem->count;
 558       if (!$count) {
 559         $count = 1;
 560       }
 561       if ($lineItem->html_type == 'Text') {
 562         $count *= $lineItem->qty;
 563       }
 564       $optionsCount[$lineItem->valueId] = $count + CRM_Utils_Array::value($lineItem->valueId, $optionsCount, 0);
 565     }
 566
 567     return $optionsCount;
 568   }
 569
 570   /**
 571    * Get the empty spaces for event those we can allocate
 572    * to pending participant to become confirm.
 573    *
 574    * @param int $eventId
 575    *   Event id.
 576    *
 577    * @return int
 578    *   $spaces  Number of Empty Seats/null.
 579    * @static
 580    */
 581   public static function pendingToConfirmSpaces($eventId) {
 582     $emptySeats = 0;
 583     if (!$eventId) {
 584       return $emptySeats;
 585     }
 586
 587     $positiveStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Positive'");
 588     $statusIds = '(' . implode(',', array_keys($positiveStatuses)) . ')';
 589
 590     $query = "
 591   SELECT  count(participant.id) as registered,
 592           civicrm_event.max_participants
 593     FROM  civicrm_participant participant, civicrm_event
 594    WHERE  participant.event_id = {$eventId}
 595      AND  civicrm_event.id = participant.event_id
 596      AND  participant.status_id IN {$statusIds}
 597 GROUP BY  participant.event_id
 598 ";
 599     $dao = CRM_Core_DAO::executeQuery($query);
 600     if ($dao->fetch()) {
 601
 602       //unlimited space.
 603       if ($dao->max_participants == NULL || $dao->max_participants <= 0) {
 604         return NULL;
 605       }
 606
 607       //no space.
 608       if ($dao->registered >= $dao->max_participants) {
 609         return $emptySeats;
 610       }
 611
 612       //difference.
 613       return $dao->max_participants - $dao->registered;
 614     }
 615
 616     //space in case no registeration yet.
 617     return CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Event', $eventId, 'max_participants');
 618   }
 619
 620   /**
 621    * Combine all the importable fields from the lower levels object
 622    *
 623    * @param string $contactType
 624    * @param bool $status
 625    * @param bool $onlyParticipant
 626    *
 627    * @return array
 628    *   array of importable Fields
 629    * @static
 630    */
 631   public static function &importableFields($contactType = 'Individual', $status = TRUE, $onlyParticipant = FALSE) {
 632     if (!self::$_importableFields) {
 633       if (!$onlyParticipant) {
 634         if (!$status) {
 635           $fields = array('' => array('title' => ts('- do not import -')));
 636         }
 637         else {
 638           $fields = array('' => array('title' => ts('- Participant Fields -')));
 639         }
 640       }
 641       else {
 642         $fields = array();
 643       }
 644
 645       $tmpFields = CRM_Event_DAO_Participant::import();
 646
 647       $note = array(
 648         'participant_note' => array(
 649           'title' => ts('Participant Note'),
 650           'name' => 'participant_note',
 651           'headerPattern' => '/(participant.)?note$/i',
 652         ),
 653       );
 654
 655       // Split status and status id into 2 fields
 656       // Fixme: it would be better to leave as 1 field and intelligently handle both during import
 657       $participantStatus = array(
 658         'participant_status' => array(
 659           'title' => ts('Participant Status'),
 660           'name' => 'participant_status',
 661           'data_type' => CRM_Utils_Type::T_STRING,
 662         ),
 663       );
 664       $tmpFields['participant_status_id']['title'] = ts('Participant Status Id');
 665
 666       // Split role and role id into 2 fields
 667       // Fixme: it would be better to leave as 1 field and intelligently handle both during import
 668       $participantRole = array(
 669         'participant_role' => array(
 670           'title' => ts('Participant Role'),
 671           'name' => 'participant_role',
 672           'data_type' => CRM_Utils_Type::T_STRING,
 673         ),
 674       );
 675       $tmpFields['participant_role_id']['title'] = ts('Participant Role Id');
 676
 677       $eventType = array(
 678         'event_type' => array(
 679           'title' => ts('Event Type'),
 680           'name' => 'event_type',
 681           'data_type' => CRM_Utils_Type::T_STRING,
 682         ),
 683       );
 684
 685       $tmpContactField = $contactFields = array();
 686       $contactFields = array();
 687       if (!$onlyParticipant) {
 688         $contactFields = CRM_Contact_BAO_Contact::importableFields($contactType, NULL);
 689
 690         // Using new Dedupe rule.
 691         $ruleParams = array(
 692           'contact_type' => $contactType,
 693           'used' => 'Unsupervised',
 694         );
 695         $fieldsArray = CRM_Dedupe_BAO_Rule::dedupeRuleFields($ruleParams);
 696
 697         if (is_array($fieldsArray)) {
 698           foreach ($fieldsArray as $value) {
 699             $customFieldId = CRM_Core_DAO::getFieldValue('CRM_Core_DAO_CustomField',
 700               $value,
 701               'id',
 702               'column_name'
 703             );
 704             $value = $customFieldId ? 'custom_' . $customFieldId : $value;
 705             $tmpContactField[trim($value)] = CRM_Utils_Array::value(trim($value), $contactFields);
 706             if (!$status) {
 707               $title = $tmpContactField[trim($value)]['title'] . ' (match to contact)';
 708             }
 709             else {
 710               $title = $tmpContactField[trim($value)]['title'];
 711             }
 712
 713             $tmpContactField[trim($value)]['title'] = $title;
 714           }
 715         }
 716       }
 717       $extIdentifier = CRM_Utils_Array::value('external_identifier', $contactFields);
 718       if ($extIdentifier) {
 719         $tmpContactField['external_identifier'] = $extIdentifier;
 720         $tmpContactField['external_identifier']['title'] =
 721           CRM_Utils_Array::value('title', $extIdentifier) . ' (match to contact)';
 722       }
 723       $tmpFields['participant_contact_id']['title'] =
 724         $tmpFields['participant_contact_id']['title'] . ' (match to contact)';
 725
 726       $fields = array_merge($fields, $tmpContactField);
 727       $fields = array_merge($fields, $tmpFields);
 728       $fields = array_merge($fields, $note, $participantStatus, $participantRole, $eventType);
 729       $fields = array_merge($fields, CRM_Core_BAO_CustomField::getFieldsForImport('Participant'));
 730
 731       self::$_importableFields = $fields;
 732     }
 733
 734     return self::$_importableFields;
 735   }
 736
 737   /**
 738    * Combine all the exportable fields from the lower levels object
 739    *
 740    * @return array
 741    *   array of exportable Fields
 742    * @static
 743    */
 744   public static function &exportableFields() {
 745     if (!self::$_exportableFields) {
 746       if (!self::$_exportableFields) {
 747         self::$_exportableFields = array();
 748       }
 749
 750       $fields = array();
 751
 752       $participantFields = CRM_Event_DAO_Participant::export();
 753       $noteField = array(
 754         'participant_note' => array(
 755           'title' => 'Participant Note',
 756           'name' => 'participant_note',
 757         ),
 758       );
 759
 760       $participantStatus = array(
 761         'participant_status' => array(
 762           'title' => 'Participant Status',
 763           'name' => 'participant_status',
 764         ),
 765       );
 766
 767       $participantRole = array(
 768         'participant_role' => array(
 769           'title' => 'Participant Role',
 770           'name' => 'participant_role',
 771         ),
 772       );
 773
 774       //CRM-13595 add event id to participant export
 775       $eventid = array(
 776         'event_id' => array(
 777           'title' => 'Event ID',
 778           'name' => 'event_id',
 779         ),
 780       );
 781       $eventtitle = array(
 782         'event_title' => array(
 783           'title' => 'Event Title',
 784           'name' => 'event_title',
 785         ),
 786       );
 787
 788       $discountFields = CRM_Core_DAO_Discount::export();
 789
 790       $fields = array_merge($participantFields, $participantStatus, $participantRole, $eventid, $eventtitle, $noteField, $discountFields);
 791
 792       // add custom data
 793       $fields = array_merge($fields, CRM_Core_BAO_CustomField::getFieldsForImport('Participant'));
 794       self::$_exportableFields = $fields;
 795     }
 796
 797     return self::$_exportableFields;
 798   }
 799
 800   /**
 801    * Get the event name/sort name for a particular participation / participant
 802    *
 803    * @param int $participantId
 804    *   Id of the participant.
 805    *
 806    * @return array
 807    *   associated array with sort_name and event title
 808    * @static
 809    */
 810   public static function participantDetails($participantId) {
 811     $query = "
 812 SELECT civicrm_contact.sort_name as name, civicrm_event.title as title, civicrm_contact.id as cid
 813 FROM   civicrm_participant
 814    LEFT JOIN civicrm_event   ON (civicrm_participant.event_id = civicrm_event.id)
 815    LEFT JOIN civicrm_contact ON (civicrm_participant.contact_id = civicrm_contact.id)
 816 WHERE  civicrm_participant.id = {$participantId}
 817 ";
 818     $dao = CRM_Core_DAO::executeQuery($query, CRM_Core_DAO::$_nullArray);
 819
 820     $details = array();
 821     while ($dao->fetch()) {
 822       $details['name'] = $dao->name;
 823       $details['title'] = $dao->title;
 824       $details['cid'] = $dao->cid;
 825     }
 826
 827     return $details;
 828   }
 829
 830   /**
 831    * Get the values for pseudoconstants for name->value and reverse.
 832    *
 833    * @param array $defaults
 834    *   (reference) the default values, some of which need to be resolved.
 835    * @param bool $reverse
 836    *   True if we want to resolve the values in the reverse direction (value -> name).
 837    *
 838    * @return void
 839    * @static
 840    */
 841   public static function resolveDefaults(&$defaults, $reverse = FALSE) {
 842     self::lookupValue($defaults, 'event', CRM_Event_PseudoConstant::event(), $reverse);
 843     self::lookupValue($defaults, 'status', CRM_Event_PseudoConstant::participantStatus(NULL, NULL, 'label'), $reverse);
 844     self::lookupValue($defaults, 'role', CRM_Event_PseudoConstant::participantRole(), $reverse);
 845   }
 846
 847   /**
 848    * convert associative array names to values
 849    * and vice-versa.
 850    *
 851    * This function is used by both the web form layer and the api. Note that
 852    * the api needs the name => value conversion, also the view layer typically
 853    * requires value => name conversion
 854    */
 855   public static function lookupValue(&$defaults, $property, $lookup, $reverse) {
 856     $id = $property . '_id';
 857
 858     $src = $reverse ? $property : $id;
 859     $dst = $reverse ? $id : $property;
 860
 861     if (!array_key_exists($src, $defaults)) {
 862       return FALSE;
 863     }
 864
 865     $look = $reverse ? array_flip($lookup) : $lookup;
 866
 867     if (is_array($look)) {
 868       if (!array_key_exists($defaults[$src], $look)) {
 869         return FALSE;
 870       }
 871     }
 872     $defaults[$dst] = $look[$defaults[$src]];
 873     return TRUE;
 874   }
 875
 876   /**
 877    * Delete the record that are associated with this participation
 878    *
 879    * @param int $id
 880    *   Id of the participation to delete.
 881    *
 882    * @return void
 883    * @static
 884    */
 885   public static function deleteParticipant($id) {
 886     CRM_Utils_Hook::pre('delete', 'Participant', $id, CRM_Core_DAO::$_nullArray);
 887
 888     $transaction = new CRM_Core_Transaction();
 889
 890     //delete activity record
 891     $params = array(
 892       'source_record_id' => $id,
 893       // activity type id for event registration
 894       'activity_type_id' => 5,
 895     );
 896
 897     CRM_Activity_BAO_Activity::deleteActivity($params);
 898
 899     // delete the participant payment record
 900     // we need to do this since the cascaded constraints
 901     // dont work with join tables
 902     $p = array('participant_id' => $id);
 903     CRM_Event_BAO_ParticipantPayment::deleteParticipantPayment($p);
 904
 905     // cleanup line items.
 906     $participantsId = array();
 907     $participantsId = self::getAdditionalParticipantIds($id);
 908     $participantsId[] = $id;
 909     CRM_Price_BAO_LineItem::deleteLineItems($participantsId, 'civicrm_participant');
 910
 911     //delete note when participant deleted.
 912     $note = CRM_Core_BAO_Note::getNote($id, 'civicrm_participant');
 913     $noteId = key($note);
 914     if ($noteId) {
 915       CRM_Core_BAO_Note::del($noteId, FALSE);
 916     }
 917
 918     $participant = new CRM_Event_DAO_Participant();
 919     $participant->id = $id;
 920     $participant->delete();
 921
 922     $transaction->commit();
 923
 924     CRM_Utils_Hook::post('delete', 'Participant', $participant->id, $participant);
 925
 926     // delete the recently created Participant
 927     $participantRecent = array(
 928       'id' => $id,
 929       'type' => 'Participant',
 930     );
 931
 932     CRM_Utils_Recent::del($participantRecent);
 933
 934     return $participant;
 935   }
 936
 937   /**
 938    * Checks duplicate participants
 939    *
 940    * @param array $duplicates
 941    *   (reference ) an assoc array of name/value pairs.
 942    * @param array $input
 943    *   An assosiative array of name /value pairs.
 944    * from other function
 945    *
 946    * @return CRM_Contribute_BAO_Contribution object
 947    * @static
 948    */
 949   public static function checkDuplicate($input, &$duplicates) {
 950     $eventId = CRM_Utils_Array::value('event_id', $input);
 951     $contactId = CRM_Utils_Array::value('contact_id', $input);
 952
 953     $clause = array();
 954     $input = array();
 955
 956     if ($eventId) {
 957       $clause[] = "event_id = %1";
 958       $input[1] = array($eventId, 'Integer');
 959     }
 960
 961     if ($contactId) {
 962       $clause[] = "contact_id = %2";
 963       $input[2] = array($contactId, 'Integer');
 964     }
 965
 966     if (empty($clause)) {
 967       return FALSE;
 968     }
 969
 970     $clause = implode(' AND ', $clause);
 971
 972     $query = "SELECT id FROM civicrm_participant WHERE $clause";
 973     $dao = CRM_Core_DAO::executeQuery($query, $input);
 974     $result = FALSE;
 975     while ($dao->fetch()) {
 976       $duplicates[] = $dao->id;
 977       $result = TRUE;
 978     }
 979     return $result;
 980   }
 981
 982   /**
 983    * Fix the event level
 984    *
 985    * When price sets are used as event fee, fee_level is set as ^A
 986    * separated string. We need to change that string to comma
 987    * separated string before using fee_level in view mode.
 988    *
 989    * @param string $eventLevel
 990    *   Event_leval string from db.
 991    *
 992    * @static
 993    *
 994    * @return void
 995    */
 996   public static function fixEventLevel(&$eventLevel) {
 997     if ((substr($eventLevel, 0, 1) == CRM_Core_DAO::VALUE_SEPARATOR) &&
 998       (substr($eventLevel, -1, 1) == CRM_Core_DAO::VALUE_SEPARATOR)
 999     ) {
1000       $eventLevel = implode(', ', explode(CRM_Core_DAO::VALUE_SEPARATOR, substr($eventLevel, 1, -1)));
1001       $pos = strrpos($eventLevel, '(multiple participants)', 0);
1002       if ($pos) {
1003         $eventLevel = substr_replace($eventLevel, "", $pos - 3, 1);
1004       }
1005     }
1006     elseif ((substr($eventLevel, 0, 1) == CRM_Core_DAO::VALUE_SEPARATOR)) {
1007       $eventLevel = implode(', ', explode(CRM_Core_DAO::VALUE_SEPARATOR,
1008         substr($eventLevel, 0, 1)
1009       ));
1010     }
1011     elseif ((substr($eventLevel, -1, 1) == CRM_Core_DAO::VALUE_SEPARATOR)) {
1012       $eventLevel = implode(', ', explode(CRM_Core_DAO::VALUE_SEPARATOR,
1013         substr($eventLevel, 0, -1)
1014       ));
1015     }
1016   }
1017
1018   /**
1019    * Get the additional participant ids.
1020    *
1021    * @param int $primaryParticipantId
1022    *   Primary partycipant Id.
1023    * @param bool $excludeCancel
1024    *   Do not include participant those are cancelled.
1025    *
1026    * @param int $oldStatusId
1027    *
1028    * @return array
1029    * @static
1030    */
1031   public static function getAdditionalParticipantIds($primaryParticipantId, $excludeCancel = TRUE, $oldStatusId = NULL) {
1032     $additionalParticipantIds = array();
1033     if (!$primaryParticipantId) {
1034       return $additionalParticipantIds;
1035     }
1036
1037     $where = "participant.registered_by_id={$primaryParticipantId}";
1038     if ($excludeCancel) {
1039       $cancelStatusId = 0;
1040       $negativeStatuses = CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Negative'");
1041       $cancelStatusId = array_search('Cancelled', $negativeStatuses);
1042       $where .= " AND participant.status_id != {$cancelStatusId}";
1043     }
1044
1045     if ($oldStatusId) {
1046       $where .= " AND participant.status_id = {$oldStatusId}";
1047     }
1048
1049     $query = "
1050   SELECT  participant.id
1051     FROM  civicrm_participant participant
1052    WHERE  {$where}";
1053
1054     $dao = CRM_Core_DAO::executeQuery($query);
1055     while ($dao->fetch()) {
1056       $additionalParticipantIds[$dao->id] = $dao->id;
1057     }
1058     return $additionalParticipantIds;
1059   }
1060
1061   /**
1062    * Get the event fee info for given participant ids
1063    * either from line item table / participant table.
1064    *
1065    * @param array $participantIds
1066    *   Participant ids.
1067    * @param bool $hasLineItems
1068    *   Do fetch from line items.
1069    *
1070    * @return array
1071    * @static
1072    */
1073   public function getFeeDetails($participantIds, $hasLineItems = FALSE) {
1074     $feeDetails = array();
1075     if (!is_array($participantIds) || empty($participantIds)) {
1076       return $feeDetails;
1077     }
1078
1079     $select = '
1080 SELECT  participant.id         as id,
1081         participant.fee_level  as fee_level,
1082         participant.fee_amount as fee_amount';
1083     $from = 'FROM civicrm_participant participant';
1084     if ($hasLineItems) {
1085       $select .= ' ,
1086 lineItem.id          as lineId,
1087 lineItem.label       as label,
1088 lineItem.qty         as qty,
1089 lineItem.unit_price  as unit_price,
1090 lineItem.line_total  as line_total,
1091 field.label          as field_title,
1092 field.html_type      as html_type,
1093 field.id             as price_field_id,
1094 value.id             as price_field_value_id,
1095 value.description    as description,
1096 IF( value.count, value.count, 0 ) as participant_count';
1097       $from .= "
1098 INNER JOIN civicrm_line_item lineItem      ON ( lineItem.entity_table = 'civicrm_participant'
1099                                                 AND lineItem.entity_id = participant.id )
1100 INNER JOIN civicrm_price_field field ON ( field.id = lineItem.price_field_id )
1101 INNER JOIN civicrm_price_field_value value ON ( value.id = lineItem.price_field_value_id )
1102 ";
1103     }
1104     $where = 'WHERE participant.id IN ( ' . implode(', ', $participantIds) . ' )';
1105     $query = "$select $from  $where";
1106
1107     $feeInfo = CRM_Core_DAO::executeQuery($query);
1108     $feeProperties = array('fee_level', 'fee_amount');
1109     $lineProperties = array(
1110       'lineId',
1111       'label',
1112       'qty',
1113       'unit_price',
1114       'line_total',
1115       'field_title',
1116       'html_type',
1117       'price_field_id',
1118       'participant_count',
1119       'price_field_value_id',
1120       'description',
1121     );
1122     while ($feeInfo->fetch()) {
1123       if ($hasLineItems) {
1124         foreach ($lineProperties as $property) {
1125           $feeDetails[$feeInfo->id][$feeInfo->lineId][$property] = $feeInfo->$property;
1126         }
1127       }
1128       else {
1129         foreach ($feeProperties as $property) {
1130           $feeDetails[$feeInfo->id][$property] = $feeInfo->$property;
1131         }
1132       }
1133     }
1134
1135     return $feeDetails;
1136   }
1137
1138   /**
1139    * Retrieve additional participants display-names and URL to view their participant records.
1140    * (excludes cancelled participants automatically)
1141    *
1142    * @param int $primaryParticipantID
1143    *   Id of primary participant record.
1144    *
1145    * @return array
1146    *   $displayName => $viewUrl
1147    * @static
1148    */
1149   public static function getAdditionalParticipants($primaryParticipantID) {
1150     $additionalParticipantIDs = array();
1151     $additionalParticipantIDs = self::getAdditionalParticipantIds($primaryParticipantID);
1152     if (!empty($additionalParticipantIDs)) {
1153       foreach ($additionalParticipantIDs as $additionalParticipantID) {
1154         $additionalContactID = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Participant',
1155           $additionalParticipantID,
1156           'contact_id', 'id'
1157         );
1158         $additionalContactName = CRM_Contact_BAO_Contact::displayName($additionalContactID);
1159         $pViewURL = CRM_Utils_System::url('civicrm/contact/view/participant',
1160           "action=view&reset=1&id={$additionalParticipantID}&cid={$additionalContactID}"
1161         );
1162
1163         $additionalParticipants[$additionalContactName] = $pViewURL;
1164       }
1165     }
1166     return $additionalParticipants;
1167   }
1168
1169   /**
1170    * Function for update primary and additional participant status
1171    *
1172    * @param int $participantID
1173    *   Primary participant's id.
1174    * @param int $oldStatusID
1175    * @param int $newStatusID
1176    * @param bool $updatePrimaryStatus
1177    *
1178    * @return bool|void
1179    * @static
1180    */
1181   public static function updateParticipantStatus($participantID, $oldStatusID, $newStatusID = NULL, $updatePrimaryStatus = FALSE) {
1182     if (!$participantID || !$oldStatusID) {
1183       return;
1184     }
1185
1186     if (!$newStatusID) {
1187       $newStatusID = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Participant', $participantID, 'status_id');
1188     }
1189     elseif ($updatePrimaryStatus) {
1190       CRM_Core_DAO::setFieldValue('CRM_Event_DAO_Participant', $participantID, 'status_id', $newStatusID);
1191     }
1192
1193     $cascadeAdditionalIds = self::getValidAdditionalIds($participantID, $oldStatusID, $newStatusID);
1194
1195     if (!empty($cascadeAdditionalIds)) {
1196       $cascadeAdditionalIds = implode(',', $cascadeAdditionalIds);
1197       $query = "UPDATE civicrm_participant cp SET cp.status_id = %1 WHERE  cp.id IN ({$cascadeAdditionalIds})";
1198       $params = array(1 => array($newStatusID, 'Integer'));
1199       $dao = CRM_Core_DAO::executeQuery($query, $params);
1200       return TRUE;
1201     }
1202     return FALSE;
1203   }
1204
1205   /**
1206    * Function for update status for given participant ids
1207    *
1208    * @param int $participantIds
1209    *   Array of participant ids.
1210    * @param int $statusId
1211    *   Status id for participant.
1212    * @param bool $updateRegisterDate
1213    *
1214    * @return void
1215    *
1216    * @static
1217    */
1218   public static function updateStatus($participantIds, $statusId, $updateRegisterDate = FALSE) {
1219     if (!is_array($participantIds) || empty($participantIds) || !$statusId) {
1220       return;
1221     }
1222
1223     //lets update register date as we update status to keep track
1224     //when we did update status, useful for moving participant
1225     //from pending to expired.
1226     $setClause = "status_id = {$statusId}";
1227     if ($updateRegisterDate) {
1228       $setClause .= ", register_date = NOW()";
1229     }
1230
1231     $participantIdClause = '( ' . implode(',', $participantIds) . ' )';
1232
1233     $query = "
1234 UPDATE  civicrm_participant
1235    SET  {$setClause}
1236  WHERE  id IN {$participantIdClause}";
1237
1238     $dao = CRM_Core_DAO::executeQuery($query);
1239   }
1240
1241   /**
1242    * Function takes participant ids and statuses
1243    * update status from $fromStatusId to $toStatusId
1244    * and send mail + create activities.
1245    *
1246    * @param array $participantIds
1247    *   Participant ids.
1248    * @param int $toStatusId
1249    *   Update status id.
1250    * @param int $fromStatusId
1251    *   From status id.
1252    *
1253    * return  void
1254    * @param bool $returnResult
1255    * @param bool $skipCascadeRule
1256    *
1257    * @return array
1258    * @static
1259    */
1260   static function transitionParticipants(
1261     $participantIds, $toStatusId,
1262     $fromStatusId = NULL, $returnResult = FALSE, $skipCascadeRule = FALSE
1263   ) {
1264     if (!is_array($participantIds) || empty($participantIds) || !$toStatusId) {
1265       return;
1266     }
1267
1268     //thumb rule is if we triggering  primary participant need to triggered additional
1269     $allParticipantIds = $primaryANDAdditonalIds = array();
1270     foreach ($participantIds as $id) {
1271       $allParticipantIds[] = $id;
1272       if (self::isPrimaryParticipant($id)) {
1273         //filter additional as per status transition rules, CRM-5403
1274         if ($skipCascadeRule) {
1275           $additionalIds = self::getAdditionalParticipantIds($id);
1276         }
1277         else {
1278           $additionalIds = self::getValidAdditionalIds($id, $fromStatusId, $toStatusId);
1279         }
1280         if (!empty($additionalIds)) {
1281           $allParticipantIds = array_merge($allParticipantIds, $additionalIds);
1282           $primaryANDAdditonalIds[$id] = $additionalIds;
1283         }
1284       }
1285     }
1286
1287     //get the unique participant ids,
1288     $allParticipantIds = array_unique($allParticipantIds);
1289
1290     //pull required participants, contacts, events  data, if not in hand
1291     static $eventDetails = array();
1292     static $domainValues = array();
1293     static $contactDetails = array();
1294
1295     $contactIds = $eventIds = $participantDetails = array();
1296
1297     $statusTypes = CRM_Event_PseudoConstant::participantStatus();
1298     $participantRoles = CRM_Event_PseudoConstant::participantRole();
1299     $pendingStatuses = CRM_Event_PseudoConstant::participantStatus(NULL,
1300       "class = 'Pending'"
1301     );
1302
1303     //first thing is pull all necessory data from db.
1304     $participantIdClause = '(' . implode(',', $allParticipantIds) . ')';
1305
1306     //get all participants data.
1307     $query = "SELECT * FROM civicrm_participant WHERE id IN {$participantIdClause}";
1308     $dao = CRM_Core_DAO::executeQuery($query);
1309     while ($dao->fetch()) {
1310       $participantDetails[$dao->id] = array(
1311         'id' => $dao->id,
1312         'role' => $participantRoles[$dao->role_id],
1313         'is_test' => $dao->is_test,
1314         'event_id' => $dao->event_id,
1315         'status_id' => $dao->status_id,
1316         'fee_amount' => $dao->fee_amount,
1317         'contact_id' => $dao->contact_id,
1318         'register_date' => $dao->register_date,
1319         'registered_by_id' => $dao->registered_by_id,
1320       );
1321       if (!array_key_exists($dao->contact_id, $contactDetails)) {
1322         $contactIds[$dao->contact_id] = $dao->contact_id;
1323       }
1324
1325       if (!array_key_exists($dao->event_id, $eventDetails)) {
1326         $eventIds[$dao->event_id] = $dao->event_id;
1327       }
1328     }
1329
1330     //get the domain values.
1331     if (empty($domainValues)) {
1332       // making all tokens available to templates.
1333       $domain = CRM_Core_BAO_Domain::getDomain();
1334       $tokens = array(
1335         'domain' => array('name', 'phone', 'address', 'email'),
1336         'contact' => CRM_Core_SelectValues::contactTokens(),
1337       );
1338
1339       foreach ($tokens['domain'] as $token) {
1340         $domainValues[$token] = CRM_Utils_Token::getDomainTokenReplacement($token, $domain);
1341       }
1342     }
1343
1344     //get all required contacts detail.
1345     if (!empty($contactIds)) {
1346       // get the contact details.
1347       list($currentContactDetails) = CRM_Utils_Token::getTokenDetails($contactIds, NULL,
1348         FALSE, FALSE, NULL,
1349         array(),
1350         'CRM_Event_BAO_Participant'
1351       );
1352       foreach ($currentContactDetails as $contactId => $contactValues) {
1353         $contactDetails[$contactId] = $contactValues;
1354       }
1355     }
1356
1357     //get all required events detail.
1358     if (!empty($eventIds)) {
1359       foreach ($eventIds as $eventId) {
1360         //retrieve event information
1361         $eventParams = array('id' => $eventId);
1362         CRM_Event_BAO_Event::retrieve($eventParams, $eventDetails[$eventId]);
1363
1364         //get default participant role.
1365         $eventDetails[$eventId]['participant_role'] = CRM_Utils_Array::value($eventDetails[$eventId]['default_role_id'], $participantRoles);
1366
1367         //get the location info
1368         $locParams = array('entity_id' => $eventId, 'entity_table' => 'civicrm_event');
1369         $eventDetails[$eventId]['location'] = CRM_Core_BAO_Location::getValues($locParams, TRUE);
1370       }
1371     }
1372
1373     //now we are ready w/ all required data.
1374     //take a decision as per statuses.
1375
1376     $emailType = NULL;
1377     $toStatus = $statusTypes[$toStatusId];
1378     $fromStatus = CRM_Utils_Array::value($fromStatusId, $statusTypes);
1379
1380     switch ($toStatus) {
1381       case 'Pending from waitlist':
1382       case 'Pending from approval':
1383         switch ($fromStatus) {
1384           case 'On waitlist':
1385           case 'Awaiting approval':
1386             $emailType = 'Confirm';
1387             break;
1388         }
1389         break;
1390
1391       case 'Expired':
1392         //no matter from where u come send expired mail.
1393         $emailType = $toStatus;
1394         break;
1395
1396       case 'Cancelled':
1397         //no matter from where u come send cancel mail.
1398         $emailType = $toStatus;
1399         break;
1400     }
1401
1402     //as we process additional w/ primary, there might be case if user
1403     //select primary as well as additionals, so avoid double processing.
1404     $processedParticipantIds = array();
1405     $mailedParticipants = array();
1406
1407     //send mails and update status.
1408     foreach ($participantDetails as $participantId => $participantValues) {
1409       $updateParticipantIds = array();
1410       if (in_array($participantId, $processedParticipantIds)) {
1411         continue;
1412       }
1413
1414       //check is it primary and has additional.
1415       if (array_key_exists($participantId, $primaryANDAdditonalIds)) {
1416         foreach ($primaryANDAdditonalIds[$participantId] as $additonalId) {
1417
1418           if ($emailType) {
1419             $mail = self::sendTransitionParticipantMail($additonalId,
1420               $participantDetails[$additonalId],
1421               $eventDetails[$participantDetails[$additonalId]['event_id']],
1422               $contactDetails[$participantDetails[$additonalId]['contact_id']],
1423               $domainValues,
1424               $emailType
1425             );
1426
1427             //get the mail participant ids
1428             if ($mail) {
1429               $mailedParticipants[$additonalId] = $contactDetails[$participantDetails[$additonalId]['contact_id']]['display_name'];
1430             }
1431           }
1432           $updateParticipantIds[] = $additonalId;
1433           $processedParticipantIds[] = $additonalId;
1434         }
1435       }
1436
1437       //now send email appropriate mail to primary.
1438       if ($emailType) {
1439         $mail = self::sendTransitionParticipantMail($participantId,
1440           $participantValues,
1441           $eventDetails[$participantValues['event_id']],
1442           $contactDetails[$participantValues['contact_id']],
1443           $domainValues,
1444           $emailType
1445         );
1446
1447         //get the mail participant ids
1448         if ($mail) {
1449           $mailedParticipants[$participantId] = $contactDetails[$participantValues['contact_id']]['display_name'];
1450         }
1451       }
1452
1453       //now update status of group/one at once.
1454       $updateParticipantIds[] = $participantId;
1455
1456       //update the register date only when we,
1457       //move participant to pending class, CRM-6496
1458       $updateRegisterDate = FALSE;
1459       if (array_key_exists($toStatusId, $pendingStatuses)) {
1460         $updateRegisterDate = TRUE;
1461       }
1462       self::updateStatus($updateParticipantIds, $toStatusId, $updateRegisterDate);
1463       $processedParticipantIds[] = $participantId;
1464     }
1465
1466     //return result for cron.
1467     if ($returnResult) {
1468       $results = array(
1469         'mailedParticipants' => $mailedParticipants,
1470         'updatedParticipantIds' => $processedParticipantIds,
1471       );
1472
1473       return $results;
1474     }
1475   }
1476
1477   /**
1478    * Send mail and create activity
1479    * when participant status changed.
1480    *
1481    * @param int $participantId
1482    *   Participant id.
1483    * @param array $participantValues
1484    *   Participant detail values. status id for participants.
1485    * @param array $eventDetails
1486    *   Required event details.
1487    * @param array $contactDetails
1488    *   Required contact details.
1489    * @param array $domainValues
1490    *   Required domain values.
1491    * @param string $mailType
1492    *   (eg 'approval', 'confirm', 'expired' ).
1493    *
1494    * return  void
1495    *
1496    * @return bool
1497    * @static
1498    */
1499   static function sendTransitionParticipantMail(
1500     $participantId,
1501     $participantValues,
1502     $eventDetails,
1503     $contactDetails,
1504     &$domainValues,
1505     $mailType
1506   ) {
1507     //send emails.
1508     $mailSent = FALSE;
1509
1510     //don't send confirmation mail to additional
1511     //since only primary able to confirm registration.
1512     if (!empty($participantValues['registered_by_id']) &&
1513       $mailType == 'Confirm'
1514     ) {
1515       return $mailSent;
1516     }
1517     $toEmail = CRM_Utils_Array::value('email', $contactDetails);
1518     if ($toEmail) {
1519
1520       $contactId = $participantValues['contact_id'];
1521       $participantName = $contactDetails['display_name'];
1522
1523       //calculate the checksum value.
1524       $checksumValue = NULL;
1525       if ($mailType == 'Confirm' && !$participantValues['registered_by_id']) {
1526         $checksumLife = 'inf';
1527         $endDate = CRM_Utils_Array::value('end_date', $eventDetails);
1528         if ($endDate) {
1529           $checksumLife = (CRM_Utils_Date::unixTime($endDate) - time()) / (60 * 60);
1530         }
1531         $checksumValue = CRM_Contact_BAO_Contact_Utils::generateChecksum($contactId, NULL, $checksumLife);
1532       }
1533
1534       //take a receipt from as event else domain.
1535       $receiptFrom = $domainValues['name'] . ' <' . $domainValues['email'] . '>';
1536       if (!empty($eventDetails['confirm_from_name']) && !empty($eventDetails['confirm_from_email'])) {
1537         $receiptFrom = $eventDetails['confirm_from_name'] . ' <' . $eventDetails['confirm_from_email'] . '>';
1538       }
1539
1540       list($mailSent, $subject, $message, $html) = CRM_Core_BAO_MessageTemplate::sendTemplate(
1541         array(
1542           'groupName' => 'msg_tpl_workflow_event',
1543           'valueName' => 'participant_' . strtolower($mailType),
1544           'contactId' => $contactId,
1545           'tplParams' => array(
1546             'contact' => $contactDetails,
1547             'domain' => $domainValues,
1548             'participant' => $participantValues,
1549             'event' => $eventDetails,
1550             'paidEvent' => CRM_Utils_Array::value('is_monetary', $eventDetails),
1551             'isShowLocation' => CRM_Utils_Array::value('is_show_location', $eventDetails),
1552             'isAdditional' => $participantValues['registered_by_id'],
1553             'isExpired' => $mailType == 'Expired',
1554             'isConfirm' => $mailType == 'Confirm',
1555             'checksumValue' => $checksumValue,
1556           ),
1557           'from' => $receiptFrom,
1558           'toName' => $participantName,
1559           'toEmail' => $toEmail,
1560           'cc' => CRM_Utils_Array::value('cc_confirm', $eventDetails),
1561           'bcc' => CRM_Utils_Array::value('bcc_confirm', $eventDetails),
1562         )
1563       );
1564
1565       // 3. create activity record.
1566       if ($mailSent) {
1567         $now = date('YmdHis');
1568         $activityType = 'Event Registration';
1569         $activityParams = array(
1570           'subject' => $subject,
1571           'source_contact_id' => $contactId,
1572           'source_record_id' => $participantId,
1573           'activity_type_id' => CRM_Core_OptionGroup::getValue('activity_type',
1574             $activityType,
1575             'name'
1576           ),
1577           'activity_date_time' => CRM_Utils_Date::isoToMysql($now),
1578           'due_date_time' => CRM_Utils_Date::isoToMysql($participantValues['register_date']),
1579           'is_test' => $participantValues['is_test'],
1580           'status_id' => 2,
1581         );
1582
1583         if (is_a(CRM_Activity_BAO_Activity::create($activityParams), 'CRM_Core_Error')) {
1584           CRM_Core_Error::fatal('Failed creating Activity for expiration mail');
1585         }
1586       }
1587     }
1588
1589     return $mailSent;
1590   }
1591
1592   /**
1593    * Get participant status change message.
1594    *
1595    * @param int $participantId
1596    * @param $statusChangeTo
1597    * @param int $fromStatusId
1598    *
1599    * @return string
1600    */
1601   public function updateStatusMessage($participantId, $statusChangeTo, $fromStatusId) {
1602     $statusMsg = NULL;
1603     $results = self::transitionParticipants(array($participantId),
1604       $statusChangeTo, $fromStatusId, TRUE
1605     );
1606
1607     $allStatuses = CRM_Event_PseudoConstant::participantStatus();
1608     //give user message only when mail has sent.
1609     if (is_array($results) && !empty($results)) {
1610       if (is_array($results['updatedParticipantIds']) && !empty($results['updatedParticipantIds'])) {
1611         foreach ($results['updatedParticipantIds'] as $processedId) {
1612           if (is_array($results['mailedParticipants']) &&
1613             array_key_exists($processedId, $results['mailedParticipants'])
1614           ) {
1615             $statusMsg .= '<br /> ' . ts("Participant status has been updated to '%1'. An email has been sent to %2.",
1616                 array(
1617                   1 => $allStatuses[$statusChangeTo],
1618                   2 => $results['mailedParticipants'][$processedId],
1619                 )
1620               );
1621           }
1622         }
1623       }
1624     }
1625
1626     return $statusMsg;
1627   }
1628
1629   /**
1630    * Get event full and waiting list message.
1631    *
1632    * @param int $eventId
1633    * @param int $participantId
1634    *
1635    * @return string
1636    */
1637   public static function eventFullMessage($eventId, $participantId = NULL) {
1638     $eventfullMsg = $dbStatusId = NULL;
1639     $checkEventFull = TRUE;
1640     if ($participantId) {
1641       $dbStatusId = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Participant', $participantId, 'status_id');
1642       if (array_key_exists($dbStatusId, CRM_Event_PseudoConstant::participantStatus(NULL, 'is_counted = 1'))) {
1643         //participant already in counted status no need to check for event full messages.
1644         $checkEventFull = FALSE;
1645       }
1646     }
1647
1648     //early return.
1649     if (!$eventId || !$checkEventFull) {
1650       return $eventfullMsg;
1651     }
1652
1653     //event is truly full.
1654     $emptySeats = self::eventFull($eventId, FALSE, FALSE);
1655     if (is_string($emptySeats) && $emptySeats !== NULL) {
1656       $maxParticipants = CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Event', $eventId, 'max_participants');
1657       $eventfullMsg = ts("This event currently has the maximum number of participants registered (%1). However, you can still override this limit and register additional participants using this form.", array(
1658           1 => $maxParticipants,
1659         )) . '<br />';
1660     }
1661
1662     $hasWaiting = FALSE;
1663     $waitListedCount = self::eventFull($eventId, FALSE, TRUE, TRUE);
1664     if (is_numeric($waitListedCount)) {
1665       $hasWaiting = TRUE;
1666       //only current processing participant is on waitlist.
1667       if ($waitListedCount == 1 && CRM_Event_PseudoConstant::participantStatus($dbStatusId) == 'On waitlist') {
1668         $hasWaiting = FALSE;
1669       }
1670     }
1671
1672     if ($hasWaiting) {
1673       $waitingStatusId = array_search('On waitlist',
1674         CRM_Event_PseudoConstant::participantStatus(NULL, "class = 'Waiting'")
1675       );
1676       $viewWaitListUrl = CRM_Utils_System::url('civicrm/event/search',
1677         "reset=1&force=1&event={$eventId}&status={$waitingStatusId}"
1678       );
1679
1680       $eventfullMsg .= ts("There are %2 people currently on the waiting list for this event. You can <a href='%1'>view waitlisted registrations here</a>, or you can continue and register additional participants using this form.",
1681         array(
1682           1 => $viewWaitListUrl,
1683           2 => $waitListedCount,
1684         )
1685       );
1686     }
1687
1688     return $eventfullMsg;
1689   }
1690
1691   /**
1692    * Check for whether participant is primary or not
1693    *
1694    * @param int $participantId
1695    *
1696    * @return true if participant is primary
1697    */
1698   public static function isPrimaryParticipant($participantId) {
1699
1700     $participant = new CRM_Event_DAO_Participant();
1701     $participant->registered_by_id = $participantId;
1702
1703     if ($participant->find(TRUE)) {
1704       return TRUE;
1705     }
1706     return FALSE;
1707   }
1708
1709   /**
1710    * Get additional participant Ids for cascading with primary participant status
1711    *
1712    * @param int $participantId
1713    *   Participant id.
1714    * @param int $oldStatusId
1715    *   Previous status.
1716    * @param int $newStatusId
1717    *   New status.
1718    *
1719    * @return true if allowed
1720    */
1721   public static function getValidAdditionalIds($participantId, $oldStatusId, $newStatusId) {
1722
1723     $additionalParticipantIds = array();
1724
1725     static $participantStatuses = array();
1726
1727     if (empty($participantStatuses)) {
1728       $participantStatuses = CRM_Event_PseudoConstant::participantStatus();
1729     }
1730
1731     if (CRM_Utils_Array::value($participantStatuses[$oldStatusId], self::$_statusTransitionsRules) &&
1732       in_array($participantStatuses[$newStatusId], self::$_statusTransitionsRules[$participantStatuses[$oldStatusId]])
1733     ) {
1734       $additionalParticipantIds = self::getAdditionalParticipantIds($participantId, TRUE, $oldStatusId);
1735     }
1736
1737     return $additionalParticipantIds;
1738   }
1739
1740   /**
1741    * Get participant record count for a Contact
1742    *
1743    * @param int $contactID
1744    *
1745    * @return int
1746    *   count of participant records
1747    * @static
1748    */
1749   public static function getContactParticipantCount($contactID) {
1750     $query = "SELECT count(*)
1751 FROM     civicrm_participant
1752 WHERE    civicrm_participant.contact_id = {$contactID} AND
1753          civicrm_participant.is_test = 0";
1754     return CRM_Core_DAO::singleValueQuery($query);
1755   }
1756
1757   /**
1758    * Get participant ids by contribution id
1759    *
1760    * @param int $contributionId
1761    *   Contribution Id.
1762    * @param bool $excludeCancelled
1763    *   Exclude cancelled additional participant.
1764    *
1765    * @return array
1766    * @static
1767    */
1768   public static function getParticipantIds($contributionId, $excludeCancelled = FALSE) {
1769
1770     $ids = array();
1771     if (!$contributionId) {
1772       return $ids;
1773     }
1774
1775     // get primary participant id
1776     $query = "SELECT participant_id FROM civicrm_participant_payment WHERE contribution_id = {$contributionId}";
1777     $participantId = CRM_Core_DAO::singleValueQuery($query);
1778
1779     // get additional participant ids (including cancelled)
1780     if ($participantId) {
1781       $ids = array_merge(array(
1782         $participantId,
1783       ), self::getAdditionalParticipantIds($participantId,
1784         $excludeCancelled
1785       ));
1786     }
1787
1788     return $ids;
1789   }
1790
1791   /**
1792    * Get additional Participant edit & view url .
1793    *
1794    * @param array $participantIds
1795    *   An array of additional participant ids.
1796    *
1797    * @return array
1798    *   of Urls.
1799    * @static
1800    */
1801   public static function getAdditionalParticipantUrl($participantIds) {
1802     foreach ($participantIds as $value) {
1803       $links = array();
1804       $details = self::participantDetails($value);
1805       $viewUrl = CRM_Utils_System::url('civicrm/contact/view/participant',
1806         "action=view&reset=1&id={$value}&cid={$details['cid']}"
1807       );
1808       $editUrl = CRM_Utils_System::url('civicrm/contact/view/participant',
1809         "action=update&reset=1&id={$value}&cid={$details['cid']}"
1810       );
1811       $links[] = "<td><a href='{$viewUrl}'>" . $details['name'] . "</a></td><td></td><td><a href='{$editUrl}'>" . ts('Edit') . "</a></td>";
1812       $links = "<table><tr>" . implode("</tr><tr>", $links) . "</tr></table>";
1813       return $links;
1814     }
1815   }
1816
1817   /**
1818    * create trxn entry if an event has discount.
1819    *
1820    * @param int $eventID
1821    *   Event id.
1822    * @param array $contributionParams
1823    *   Contribution params.
1824    *
1825    * @param $feeLevel
1826    *
1827    * @static
1828    */
1829   public static function createDiscountTrxn($eventID, $contributionParams, $feeLevel) {
1830     // CRM-11124
1831     $checkDiscount = CRM_Core_BAO_Discount::findSet($eventID, 'civicrm_event');
1832     if (!empty($checkDiscount)) {
1833       $feeLevel = current($feeLevel);
1834       $priceSetId = CRM_Price_BAO_PriceSet::getFor('civicrm_event', $eventID, NULL);
1835       $query = "SELECT cpfv.amount FROM `civicrm_price_field_value` cpfv
1836 LEFT JOIN civicrm_price_field cpf ON cpfv.price_field_id = cpf.id
1837 WHERE cpf.price_set_id = %1 AND cpfv.label LIKE %2";
1838       $params = array(
1839         1 => array($priceSetId, 'Integer'),
1840         2 => array($feeLevel, 'String'),
1841       );
1842       $mainAmount = CRM_Core_DAO::singleValueQuery($query, $params);
1843       $relationTypeId = key(CRM_Core_PseudoConstant::accountOptionValues('account_relationship', NULL, " AND v.name LIKE 'Discounts Account is' "));
1844       $contributionParams['trxnParams']['from_financial_account_id'] = CRM_Contribute_PseudoConstant::financialAccountType(
1845         $contributionParams['contribution']->financial_type_id, $relationTypeId);
1846       if (!empty($contributionParams['trxnParams']['from_financial_account_id'])) {
1847         $contributionParams['trxnParams']['total_amount'] = $mainAmount - $contributionParams['total_amount'];
1848         $contributionParams['trxnParams']['payment_processor_id'] = $contributionParams['trxnParams']['payment_instrument_id'] =
1849         $contributionParams['trxnParams']['check_number'] = $contributionParams['trxnParams']['trxn_id'] =
1850         $contributionParams['trxnParams']['net_amount'] = $contributionParams['trxnParams']['fee_amount'] = NULL;
1851
1852         CRM_Core_BAO_FinancialTrxn::create($contributionParams['trxnParams']);
1853       }
1854     }
1855     return;
1856   }
1857
1858   /**
1859    * Delete participants of contact
1860    *
1861    * CRM-12155
1862    *
1863    * @param int $contactId
1864    *   Contact id.
1865    *
1866    * @static
1867    */
1868   public static function deleteContactParticipant($contactId) {
1869     $participant = new CRM_Event_DAO_Participant();
1870     $participant->contact_id = $contactId;
1871     $participant->find();
1872     while ($participant->fetch()) {
1873       self::deleteParticipant($participant->id);
1874     }
1875   }
1876
1877   /**
1878    * @param array $params
1879    * @param int $participantId
1880    * @param int $contributionId
1881    * @param $feeBlock
1882    * @param array $lineItems
1883    * @param $paidAmount
1884    * @param int $priceSetId
1885    */
1886   public static function changeFeeSelections($params, $participantId, $contributionId, $feeBlock, $lineItems, $paidAmount, $priceSetId) {
1887     $contributionStatuses = CRM_Contribute_PseudoConstant::contributionStatus(NULL, 'name');
1888     $partiallyPaidStatusId = array_search('Partially paid', $contributionStatuses);
1889     $pendingRefundStatusId = array_search('Pending refund', $contributionStatuses);
1890     $previousLineItems = CRM_Price_BAO_LineItem::getLineItems($participantId, 'participant');
1891     CRM_Price_BAO_PriceSet::processAmount($feeBlock,
1892       $params, $lineItems
1893     );
1894
1895     // get the submitted
1896     foreach ($feeBlock as $id => $values) {
1897       CRM_Price_BAO_LineItem::format($id, $params, $values, $submittedLineItems);
1898       $submittedFieldId[] = CRM_Utils_Array::retrieveValueRecursive($submittedLineItems, 'price_field_id');
1899     }
1900     if (!empty($submittedLineItems)) {
1901       $insertLines = $submittedLineItems;
1902
1903       $submittedFieldValueIds = array_keys($submittedLineItems);
1904       $updateLines = array();
1905       foreach ($previousLineItems as $id => $previousLineItem) {
1906         // check through the submitted items if the previousItem exists,
1907         // if found in submitted items, do not use it for new item creations
1908         if (in_array($previousLineItem['price_field_value_id'], $submittedFieldValueIds)) {
1909           // if submitted line items are existing don't fire INSERT query
1910           unset($insertLines[$previousLineItem['price_field_value_id']]);
1911           // for updating the line items i.e. use-case - once deselect-option selecting again
1912           if (($previousLineItem['line_total'] != $submittedLineItems[$previousLineItem['price_field_value_id']]['line_total']) ||
1913             ($submittedLineItems[$previousLineItem['price_field_value_id']]['line_total'] == 0 && $submittedLineItems[$previousLineItem['price_field_value_id']]['qty'] == 1)
1914           ) {
1915             $updateLines[$previousLineItem['price_field_value_id']] = $submittedLineItems[$previousLineItem['price_field_value_id']];
1916             $updateLines[$previousLineItem['price_field_value_id']]['id'] = $id;
1917           }
1918         }
1919       }
1920
1921       $submittedFields = implode(', ', $submittedFieldId);
1922       $submittedFieldValues = implode(', ', $submittedFieldValueIds);
1923     }
1924     if (!empty($submittedFields) && !empty($submittedFieldValues)) {
1925       $updateLineItem = "UPDATE civicrm_line_item li
1926 INNER JOIN civicrm_financial_item fi
1927    ON (li.id = fi.entity_id AND fi.entity_table = 'civicrm_line_item')
1928 SET li.qty = 0,
1929     li.line_total = 0.00,
1930     li.tax_amount = NULL
1931 WHERE (li.entity_table = 'civicrm_participant' AND li.entity_id = {$participantId}) AND
1932        (price_field_value_id NOT IN ({$submittedFieldValues}))
1933 ";
1934       CRM_Core_DAO::executeQuery($updateLineItem);
1935
1936       // gathering necessary info to record negative (deselected) financial_item
1937       $updateFinancialItem = "
1938   SELECT fi.*, SUM(fi.amount) as differenceAmt, price_field_value_id, financial_type_id, tax_amount
1939     FROM civicrm_financial_item fi LEFT JOIN civicrm_line_item li ON (li.id = fi.entity_id AND fi.entity_table = 'civicrm_line_item')
1940 WHERE (li.entity_table = 'civicrm_participant' AND li.entity_id = {$participantId})
1941 GROUP BY li.entity_table, li.entity_id, price_field_value_id
1942 ";
1943       $updateFinancialItemInfoDAO = CRM_Core_DAO::executeQuery($updateFinancialItem);
1944       $trxn = CRM_Core_BAO_FinancialTrxn::getFinancialTrxnId($contributionId, 'ASC', TRUE);
1945       $trxnId['id'] = $trxn['financialTrxnId'];
1946       $invoiceSettings = CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::CONTRIBUTE_PREFERENCES_NAME, 'contribution_invoice_settings');
1947       $taxTerm = CRM_Utils_Array::value('tax_term', $invoiceSettings);
1948       $updateFinancialItemInfoValues = array();
1949
1950       while ($updateFinancialItemInfoDAO->fetch()) {
1951         $updateFinancialItemInfoValues = (array) $updateFinancialItemInfoDAO;
1952         $updateFinancialItemInfoValues['transaction_date'] = date('YmdHis');
1953         // the below params are not needed
1954         unset($updateFinancialItemInfoValues['id']);
1955         unset($updateFinancialItemInfoValues['created_date']);
1956         // if not submitted and difference is not 0 make it negative
1957         if (!in_array($updateFinancialItemInfoValues['price_field_value_id'], $submittedFieldValueIds) && $updateFinancialItemInfoValues['differenceAmt'] != 0) {
1958           // INSERT negative financial_items
1959           $updateFinancialItemInfoValues['amount'] = -$updateFinancialItemInfoValues['amount'];
1960           CRM_Financial_BAO_FinancialItem::create($updateFinancialItemInfoValues, NULL, $trxnId);
1961           // INSERT negative financial_items for tax amount
1962           if ($previousLineItems[$updateFinancialItemInfoValues['entity_id']]['tax_amount']) {
1963             $updateFinancialItemInfoValues['amount'] = -($previousLineItems[$updateFinancialItemInfoValues['entity_id']]['tax_amount']);
1964             $updateFinancialItemInfoValues['description'] = $taxTerm;
1965             if ($updateFinancialItemInfoValues['financial_type_id']) {
1966               $updateFinancialItemInfoValues['financial_account_id'] = CRM_Contribute_BAO_Contribution::getFinancialAccountId($updateFinancialItemInfoValues['financial_type_id']);
1967             }
1968             CRM_Financial_BAO_FinancialItem::create($updateFinancialItemInfoValues, NULL, $trxnId);
1969           }
1970         }
1971         // if submitted and difference is 0 add a positive entry again
1972         elseif (in_array($updateFinancialItemInfoValues['price_field_value_id'], $submittedFieldValueIds) && $updateFinancialItemInfoValues['differenceAmt'] == 0) {
1973           $updateFinancialItemInfoValues['amount'] = $updateFinancialItemInfoValues['amount'];
1974           CRM_Financial_BAO_FinancialItem::create($updateFinancialItemInfoValues, NULL, $trxnId);
1975           // INSERT financial_items for tax amount
1976           if ($updateFinancialItemInfoValues['entity_id'] == $updateLines[$updateFinancialItemInfoValues['price_field_value_id']]['id'] &&
1977             isset($updateLines[$updateFinancialItemInfoValues['price_field_value_id']]['tax_amount'])
1978           ) {
1979             $updateFinancialItemInfoValues['amount'] = $updateLines[$updateFinancialItemInfoValues['price_field_value_id']]['tax_amount'];
1980             $updateFinancialItemInfoValues['description'] = $taxTerm;
1981             if ($updateLines[$updateFinancialItemInfoValues['price_field_value_id']]['financial_type_id']) {
1982               $updateFinancialItemInfoValues['financial_account_id'] = CRM_Contribute_BAO_Contribution::getFinancialAccountId($updateLines[$updateFinancialItemInfoValues['price_field_value_id']]['financial_type_id']);
1983             }
1984             CRM_Financial_BAO_FinancialItem::create($updateFinancialItemInfoValues, NULL, $trxnId);
1985           }
1986         }
1987       }
1988     }
1989     elseif (empty($submittedFields) && empty($submittedFieldValues)) {
1990       $updateLineItem = "UPDATE civicrm_line_item li
1991         INNER JOIN civicrm_financial_item fi
1992         ON (li.id = fi.entity_id AND fi.entity_table = 'civicrm_line_item')
1993         SET li.qty = 0,
1994         li.line_total = 0.00,
1995         li.tax_amount = NULL
1996         WHERE (li.entity_table = 'civicrm_participant' AND li.entity_id = {$participantId})";
1997       CRM_Core_DAO::executeQuery($updateLineItem);
1998     }
1999     if (!empty($updateLines)) {
2000       foreach ($updateLines as $valueId => $vals) {
2001         if (isset($vals['tax_amount'])) {
2002           $taxAmount = $vals['tax_amount'];
2003         }
2004         else {
2005           $taxAmount = "NULL";
2006         }
2007         $updateLineItem = "
2008 UPDATE civicrm_line_item li
2009 SET li.qty = {$vals['qty']},
2010     li.line_total = {$vals['line_total']},
2011     li.tax_amount = {$taxAmount},
2012     li.unit_price = {$vals['unit_price']},
2013     li.label = '{$vals['label']}'
2014 WHERE (li.entity_table = 'civicrm_participant' AND li.entity_id = {$participantId}) AND
2015       (price_field_value_id = {$valueId})
2016 ";
2017         CRM_Core_DAO::executeQuery($updateLineItem);
2018       }
2019     }
2020     // insert new 'adjusted amount' transaction entry and update contribution entry.
2021     // ensure entity_financial_trxn table has a linking of it.
2022     // insert new line items
2023     if (!empty($insertLines)) {
2024       foreach ($insertLines as $valueId => $lineParams) {
2025         $lineParams['entity_table'] = 'civicrm_participant';
2026         $lineParams['entity_id'] = $participantId;
2027         $lineParams['contribution_id'] = $contributionId;
2028         $lineObj = CRM_Price_BAO_LineItem::create($lineParams);
2029       }
2030     }
2031
2032     // the recordAdjustedAmt code would execute over here
2033     $ids = CRM_Event_BAO_Participant::getParticipantIds($contributionId);
2034     if (count($ids) > 1) {
2035       $total = 0;
2036       foreach ($ids as $val) {
2037         $total += CRM_Price_BAO_LineItem::getLineTotal($val, 'civicrm_participant');
2038       }
2039       $updatedAmount = $total;
2040     }
2041     else {
2042       $updatedAmount = $params['amount'];
2043     }
2044     if (strlen($params['tax_amount']) != 0) {
2045       $taxAmount = $params['tax_amount'];
2046     }
2047     else {
2048       $taxAmount = "NULL";
2049     }
2050     self::recordAdjustedAmt($updatedAmount, $paidAmount, $contributionId, $taxAmount);
2051
2052     $fetchCon = array('id' => $contributionId);
2053     $updatedContribution = CRM_Contribute_BAO_Contribution::retrieve($fetchCon, CRM_Core_DAO::$_nullArray, CRM_Core_DAO::$_nullArray);
2054     // insert financial items
2055     if (!empty($insertLines)) {
2056       foreach ($insertLines as $valueId => $lineParams) {
2057         $lineParams['entity_table'] = 'civicrm_participant';
2058         $lineParams['entity_id'] = $participantId;
2059         $lineObj = CRM_Price_BAO_LineItem::retrieve($lineParams, CRM_Core_DAO::$_nullArray);
2060         // insert financial items
2061         // ensure entity_financial_trxn table has a linking of it.
2062         $prevItem = CRM_Financial_BAO_FinancialItem::add($lineObj, $updatedContribution);
2063         if (isset($lineObj->tax_amount)) {
2064           CRM_Financial_BAO_FinancialItem::add($lineObj, $updatedContribution, TRUE);
2065         }
2066       }
2067     }
2068
2069     // update participant fee_amount column
2070     $partUpdateFeeAmt['id'] = $participantId;
2071     foreach ($lineItems as $lineValue) {
2072       if ($lineValue['price_field_value_id']) {
2073         $line[$lineValue['price_field_value_id']] = $lineValue['label'] . ' - ' . $lineValue['qty'];
2074       }
2075     }
2076
2077     $partUpdateFeeAmt['fee_level'] = implode(', ', $line);
2078     $partUpdateFeeAmt['fee_amount'] = $params['amount'];
2079     self::add($partUpdateFeeAmt);
2080
2081     //activity creation
2082     self::addActivityForSelection($participantId, 'Change Registration');
2083   }
2084
2085   /**
2086    * @param $updatedAmount
2087    * @param $paidAmount
2088    * @param int $contributionId
2089    */
2090   public static function recordAdjustedAmt($updatedAmount, $paidAmount, $contributionId, $taxAmount = NULL) {
2091     $balanceAmt = $updatedAmount - $paidAmount;
2092     $contributionStatuses = CRM_Contribute_PseudoConstant::contributionStatus(NULL, 'name');
2093     $partiallyPaidStatusId = array_search('Partially paid', $contributionStatuses);
2094     $pendingRefundStatusId = array_search('Pending refund', $contributionStatuses);
2095     $completedStatusId = array_search('Completed', $contributionStatuses);
2096
2097     $updatedContributionDAO = new CRM_Contribute_BAO_Contribution();
2098     $skip = FALSE;
2099     if ($balanceAmt) {
2100       if ($balanceAmt > 0 && $paidAmount != 0) {
2101         $contributionStatusVal = $partiallyPaidStatusId;
2102       }
2103       elseif ($balanceAmt < 0 && $paidAmount != 0) {
2104         $contributionStatusVal = $pendingRefundStatusId;
2105       }
2106       elseif ($paidAmount == 0) {
2107         //skip updating the contribution status if no payment is made
2108         $skip = TRUE;
2109         $updatedContributionDAO->cancel_date = 'null';
2110         $updatedContributionDAO->cancel_reason = NULL;
2111       }
2112       // update contribution status and total amount without trigger financial code
2113       // as this is handled in current BAO function used for change selection
2114       $updatedContributionDAO->id = $contributionId;
2115       if (!$skip) {
2116         $updatedContributionDAO->contribution_status_id = $contributionStatusVal;
2117       }
2118       $updatedContributionDAO->total_amount = $updatedAmount;
2119       $updatedContributionDAO->tax_amount = $taxAmount;
2120       $updatedContributionDAO->save();
2121
2122       $ftDetail = CRM_Core_BAO_FinancialTrxn::getBalanceTrxnAmt($contributionId);
2123       // adjusted amount financial_trxn creation
2124       if (empty($ftDetail['trxn_id'])) {
2125         $updatedContribution =
2126           CRM_Contribute_BAO_Contribution::getValues(array('id' => $contributionId), CRM_Core_DAO::$_nullArray, CRM_Core_DAO::$_nullArray);
2127         $relationTypeId = key(CRM_Core_PseudoConstant::accountOptionValues('account_relationship', NULL, " AND v.name LIKE 'Accounts Receivable Account is' "));
2128         $toFinancialAccount = CRM_Contribute_PseudoConstant::financialAccountType($updatedContribution->financial_type_id, $relationTypeId);
2129
2130         $adjustedTrxnValues = array(
2131           'from_financial_account_id' => NULL,
2132           'to_financial_account_id' => $toFinancialAccount,
2133           'total_amount' => $balanceAmt,
2134           'status_id' => CRM_Core_OptionGroup::getValue('contribution_status', 'Completed', 'name'),
2135           'payment_instrument_id' => $updatedContribution->payment_instrument_id,
2136           'contribution_id' => $updatedContribution->id,
2137           'trxn_date' => date('YmdHis'),
2138           'currency' => $updatedContribution->currency,
2139         );
2140         $adjustedTrxn = CRM_Core_BAO_FinancialTrxn::create($adjustedTrxnValues);
2141       }
2142       else {
2143         // update the financial trxn amount as well, as the fee selections has been updated
2144         if ($balanceAmt != $ftDetail['total_amount']) {
2145           CRM_Core_DAO::setFieldValue('CRM_Core_BAO_FinancialTrxn', $ftDetail['trxn_id'], 'total_amount', $balanceAmt);
2146         }
2147       }
2148     }
2149   }
2150
2151   /**
2152    * @param int $participantId
2153    * @param $activityType
2154    *
2155    * @throws CRM_Core_Exception
2156    */
2157   public static function addActivityForSelection($participantId, $activityType) {
2158     $eventId = CRM_Core_DAO::getFieldValue('CRM_Event_BAO_Participant', $participantId, 'event_id');
2159     $contactId = CRM_Core_DAO::getFieldValue('CRM_Event_BAO_Participant', $participantId, 'contact_id');
2160
2161     $date = CRM_Utils_Date::currentDBDate();
2162     $event = CRM_Event_BAO_Event::getEvents(0, $eventId);
2163     $eventTitle = $event[$eventId];
2164     $subject = "Registration selections changed for $eventTitle";
2165     $targetCid = $contactId;
2166     $srcRecId = $participantId;
2167
2168     // activity params
2169     $activityParams = array(
2170       'source_contact_id' => $targetCid,
2171       'source_record_id' => $srcRecId,
2172       'activity_type_id' => CRM_Core_OptionGroup::getValue('activity_type',
2173         $activityType,
2174         'name'
2175       ),
2176       'subject' => $subject,
2177       'activity_date_time' => $date,
2178       'status_id' => CRM_Core_OptionGroup::getValue('activity_status',
2179         'Completed',
2180         'name'
2181       ),
2182       'skipRecentView' => TRUE,
2183     );
2184
2185     // create activity with target contacts
2186     $session = CRM_Core_Session::singleton();
2187     $id = $session->get('userID');
2188     if ($id) {
2189       $activityParams['source_contact_id'] = $id;
2190       $activityParams['target_contact_id'][] = $targetCid;
2191     }
2192     CRM_Activity_BAO_Activity::create($activityParams);
2193   }
2194
2195   /**
2196    * Get options for a given field.
2197    * @see CRM_Core_DAO::buildOptions
2198    *
2199    * @param string $fieldName
2200    * @param string $context
2201    *   : @see CRM_Core_DAO::buildOptionsContext.
2202    * @param array $props
2203    *   : whatever is known about this dao object.
2204    *
2205    * @return Array|bool
2206    */
2207   public static function buildOptions($fieldName, $context = NULL, $props = array()) {
2208     $params = array('condition' => array());
2209
2210     if ($fieldName == 'status_id' && $context != 'validate') {
2211       // Get rid of cart-related option if disabled
2212       // FIXME: Why does this option even exist if cart is disabled?
2213       if (!CRM_Core_BAO_Setting::getItem(CRM_Core_BAO_Setting::EVENT_PREFERENCES_NAME, 'enable_cart')) {
2214         $params['condition'][] = "name <> 'Pending in cart'";
2215       }
2216     }
2217
2218     return CRM_Core_PseudoConstant::get(__CLASS__, $fieldName, $params, $context);
2219   }
2220 }