CRM/Case/Form/Activity.php

   1 <?php
   2 /*
   3  +--------------------------------------------------------------------+
   4  | CiviCRM version 4.7                                                |
   5  +--------------------------------------------------------------------+
   6  | Copyright CiviCRM LLC (c) 2004-2016                                |
   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  * @package CRM
  31  * @copyright CiviCRM LLC (c) 2004-2016
  32  */
  33
  34 /**
  35  * This class create activities for a case.
  36  */
  37 class CRM_Case_Form_Activity extends CRM_Activity_Form_Activity {
  38
  39   /**
  40    * The default variable defined.
  41    *
  42    * @var int
  43    */
  44   public $_caseId;
  45
  46   /**
  47    * The default case type variable defined.
  48    *
  49    * @var int
  50    */
  51   public $_caseType;
  52
  53   /**
  54    * The array of releted contact info.
  55    *
  56    * @var array
  57    */
  58   public $_relatedContacts;
  59
  60   /**
  61    * Build the form object.
  62    */
  63   public function preProcess() {
  64     $caseIds = CRM_Utils_Request::retrieve('caseid', 'String', $this);
  65     $this->_caseId = explode(',', $caseIds);
  66     $this->_context = CRM_Utils_Request::retrieve('context', 'String', $this);
  67     if (!$this->_context) {
  68       $this->_context = 'caseActivity';
  69     }
  70     $this->_crmDir = 'Case';
  71     $this->assign('context', $this->_context);
  72
  73     $result = parent::preProcess();
  74
  75     $scheduleStatusId = CRM_Core_OptionGroup::getValue('activity_status', 'Scheduled', 'name');
  76     $this->assign('scheduleStatusId', $scheduleStatusId);
  77
  78     if (!$this->_caseId && $this->_activityId) {
  79       $this->_caseId = CRM_Core_DAO::getFieldValue('CRM_Case_DAO_CaseActivity', $this->_activityId,
  80         'case_id', 'activity_id'
  81       );
  82     }
  83     if ($this->_caseId) {
  84       $this->assign('caseId', $this->_caseId);
  85       $this->assign('countId', count($this->_caseId));
  86       $this->assign('caseID', CRM_Utils_Array::first($this->_caseId));
  87     }
  88
  89     if (!$this->_caseId ||
  90       (!$this->_activityId && !$this->_activityTypeId)
  91     ) {
  92       CRM_Core_Error::fatal('required params missing.');
  93     }
  94
  95     //check for case activity access.
  96     if (!CRM_Case_BAO_Case::accessCiviCase()) {
  97       CRM_Core_Error::fatal(ts('You are not authorized to access this page.'));
  98     }
  99     //validate case id.
 100     if ($this->_caseId &&
 101       !CRM_Core_Permission::check('access all cases and activities')
 102     ) {
 103       $session = CRM_Core_Session::singleton();
 104       $allCases = CRM_Case_BAO_Case::getCases(TRUE, $session->get('userID'), 'any');
 105       if (count(array_intersect($this->_caseId, array_keys($allCases))) == 0) {
 106         CRM_Core_Error::fatal(ts('You are not authorized to access this page.'));
 107       }
 108     }
 109
 110     //validate case activity id.
 111     if ($this->_activityId &&
 112       ($this->_action & CRM_Core_Action::UPDATE)
 113     ) {
 114       $valid = CRM_Case_BAO_Case::checkPermission($this->_activityId, 'edit',
 115         $this->_activityTypeId
 116       );
 117       if (!$valid) {
 118         CRM_Core_Error::fatal(ts('You are not authorized to access this page.'));
 119       }
 120     }
 121
 122     foreach ($this->_caseId as $casePos => $caseId) {
 123       $this->_caseType[$casePos] = CRM_Case_BAO_Case::getCaseType($caseId, 'name');
 124     }
 125     $this->assign('caseType', $this->_caseType);
 126
 127     $xmlProcessorProcess = new CRM_Case_XMLProcessor_Process();
 128     $isMultiClient = $xmlProcessorProcess->getAllowMultipleCaseClients();
 129     $this->assign('multiClient', $isMultiClient);
 130
 131     foreach ($this->_caseId as $casePos => $caseId) {
 132       $clients[] = CRM_Case_BAO_Case::getContactNames($caseId);
 133     }
 134     $this->assign('client_names', $clients);
 135
 136     $caseIds = implode(',', $this->_caseId);
 137     // set context for pushUserContext and for statusBounce
 138     if ($this->_context == 'fulltext') {
 139       if ($this->_action == CRM_Core_Action::UPDATE || $this->_action == CRM_Core_Action::DELETE) {
 140         $url = CRM_Utils_System::url('civicrm/contact/view/case',
 141           "reset=1&action=view&cid={$this->_currentlyViewedContactId}&id={$caseIds}&show=1&context={$this->_context}"
 142         );
 143       }
 144       else {
 145         $url = CRM_Utils_System::url('civicrm/contact/search/custom', 'force=1');
 146       }
 147     }
 148     else {
 149       $url = CRM_Utils_System::url('civicrm/contact/view/case',
 150         "reset=1&action=view&cid={$this->_currentlyViewedContactId}&id={$caseIds}&show=1"
 151       );
 152     }
 153     if (!$this->_activityId) {
 154       $caseTypes = CRM_Case_PseudoConstant::caseType();
 155
 156       if (empty($caseTypes) && ($this->_activityTypeName == 'Change Case Type') && !$this->_caseId) {
 157         $url = CRM_Utils_System::url('civicrm/contact/view/case',
 158           "reset=1&action=view&cid={$this->_currentlyViewedContactId}&id={$caseIds}&show=1"
 159         );
 160         $session = CRM_Core_Session::singleton();
 161         $session->pushUserContext($url);
 162         CRM_Core_Error::statusBounce(ts("You do not have any active Case Types"));
 163       }
 164
 165       // check if activity count is within the limit
 166       $xmlProcessor = new CRM_Case_XMLProcessor_Process();
 167       foreach ($this->_caseId as $casePos => $caseId) {
 168         $caseType = $this->_caseType[$casePos];
 169         $activityInst = $xmlProcessor->getMaxInstance($caseType);
 170
 171         // If not bounce back and also provide activity edit link
 172         if (isset($activityInst[$this->_activityTypeName])) {
 173           $activityCount = CRM_Case_BAO_Case::getCaseActivityCount($caseId, $this->_activityTypeId);
 174           if ($activityCount >= $activityInst[$this->_activityTypeName]) {
 175             if ($activityInst[$this->_activityTypeName] == 1) {
 176               $atArray = array('activity_type_id' => $this->_activityTypeId);
 177               $activities = CRM_Case_BAO_Case::getCaseActivity($caseId,
 178                 $atArray,
 179                 $this->_currentUserId
 180               );
 181               $activities = array_keys($activities);
 182               $activities = $activities[0];
 183               $editUrl = CRM_Utils_System::url('civicrm/case/activity',
 184                 "reset=1&cid={$this->_currentlyViewedContactId}&caseid={$caseId}&action=update&id={$activities}"
 185               );
 186             }
 187             CRM_Core_Error::statusBounce(ts("You can not add another '%1' activity to this case. %2",
 188                 array(
 189                   1 => $this->_activityTypeName,
 190                   2 => ts("Do you want to <a %1>edit the existing activity</a>?", array(1 => "href='$editUrl'")),
 191                 )
 192               ),
 193               $url
 194             );
 195           }
 196         }
 197       }
 198     }
 199
 200     $session = CRM_Core_Session::singleton();
 201     $session->pushUserContext($url);
 202   }
 203
 204   /**
 205    * Set default values for the form.
 206    */
 207   public function setDefaultValues() {
 208     $this->_defaults = parent::setDefaultValues();
 209     $targetContactValues = array();
 210     foreach ($this->_caseId as $key => $val) {
 211       //get all clients.
 212       $clients = CRM_Case_BAO_Case::getContactNames($val);
 213       if (isset($this->_activityId) && empty($_POST)) {
 214         if (!CRM_Utils_Array::crmIsEmptyArray($this->_defaults['target_contact'])) {
 215           $targetContactValues = array_combine(array_unique($this->_defaults['target_contact']),
 216             explode(';', trim($this->_defaults['target_contact_value']))
 217           );
 218           //exclude all clients.
 219           foreach ($clients as $clientId => $vals) {
 220             if (array_key_exists($clientId, $targetContactValues)) {
 221               unset($targetContactValues[$clientId]);
 222             }
 223           }
 224         }
 225       }
 226       $this->assign('targetContactValues', empty($targetContactValues) ? FALSE : $targetContactValues);
 227
 228       if (isset($this->_encounterMedium)) {
 229         $this->_defaults['medium_id'] = $this->_encounterMedium;
 230       }
 231       elseif (empty($this->_defaults['medium_id'])) {
 232         // set default encounter medium CRM-4816
 233         $medium = CRM_Core_OptionGroup::values('encounter_medium', FALSE, FALSE, FALSE, 'AND is_default = 1');
 234         if (count($medium) == 1) {
 235           $this->_defaults['medium_id'] = key($medium);
 236         }
 237       }
 238
 239       return $this->_defaults;
 240     }
 241   }
 242
 243   public function buildQuickForm() {
 244     $this->_fields['source_contact_id']['label'] = ts('Reported By');
 245     unset($this->_fields['status_id']['attributes']['required']);
 246
 247     if ($this->_caseType) {
 248       $xmlProcessor = new CRM_Case_XMLProcessor_Process();
 249       $aTypes = array();
 250       foreach ($this->_caseType as $key => $val) {
 251         $activityTypes = $xmlProcessor->get($val, 'ActivityTypes', TRUE);
 252         $aTypes = $aTypes + $activityTypes;
 253       }
 254
 255       // remove Open Case activity type since we're inside an existing case
 256       $openCaseID = CRM_Core_OptionGroup::getValue('activity_type', 'Open Case', 'name');
 257       unset($aTypes[$openCaseID]);
 258       asort($aTypes);
 259       $this->_fields['followup_activity_type_id']['attributes'] = array('' => '- select activity type -') + $aTypes;
 260     }
 261
 262     parent::buildQuickForm();
 263
 264     if ($this->_action & (CRM_Core_Action::DELETE | CRM_Core_Action::DETACH | CRM_Core_Action::RENEW)) {
 265       return;
 266     }
 267
 268     $this->assign('urlPath', 'civicrm/case/activity');
 269
 270     $encounterMediums = CRM_Case_PseudoConstant::encounterMedium();
 271     // Fixme: what's the justification for this? It seems like it is just re-adding an option in case it is the default and disabled.
 272     // Is that really a big problem?
 273     if ($this->_activityTypeFile == 'OpenCase') {
 274       $this->_encounterMedium = CRM_Core_DAO::getFieldValue('CRM_Activity_DAO_Activity', $this->_activityId,
 275         'medium_id'
 276       );
 277       if (!array_key_exists($this->_encounterMedium, $encounterMediums)) {
 278         $encounterMediums[$this->_encounterMedium] = CRM_Core_OptionGroup::getLabel('encounter_medium',
 279           $this->_encounterMedium,
 280           FALSE
 281         );
 282       }
 283     }
 284
 285     $this->add('select', 'medium_id', ts('Medium'), $encounterMediums, TRUE);
 286     $i = 0;
 287     foreach ($this->_caseId as $key => $val) {
 288       $this->_relatedContacts[] = $rgc = CRM_Case_BAO_Case::getRelatedAndGlobalContacts($val);
 289       $contName = CRM_Case_BAO_Case::getContactNames($val);
 290       foreach ($contName as $nkey => $nval) {
 291         array_push($this->_relatedContacts[$i][0], $this->_relatedContacts[$i][0]['managerOf'] = $nval['display_name']);
 292       }
 293       $i++;
 294     }
 295
 296     //add case client in send a copy selector.CRM-4438.
 297     foreach ($this->_caseId as $key => $val) {
 298       $relatedContacts[] = $relCon = CRM_Case_BAO_Case::getContactNames($val);
 299     }
 300
 301     if (!empty($relatedContacts)) {
 302       foreach ($relatedContacts as $relatedContact) {
 303         $this->_relatedContacts[] = $relatedContact;
 304       }
 305     }
 306
 307     if (!empty($this->_relatedContacts)) {
 308       $checkBoxes = array();
 309       foreach ($this->_relatedContacts as $id => $row) {
 310         foreach ($row as $key => $value) {
 311           $checkBoxes[$key] = $this->addElement('checkbox', $key, NULL, NULL, array('class' => 'select-row'));
 312         }
 313       }
 314
 315       $this->addGroup($checkBoxes, 'contact_check');
 316       $this->addElement('checkbox', 'toggleSelect', NULL, NULL,
 317         array('class' => 'select-rows')
 318       );
 319       $this->assign('searchRows', $this->_relatedContacts);
 320     }
 321     $this->_relatedContacts = $rgc + $relCon;
 322
 323     $this->addFormRule(array('CRM_Case_Form_Activity', 'formRule'), $this);
 324   }
 325
 326   /**
 327    * Global form rule.
 328    *
 329    * @param array $fields
 330    *   The input form values.
 331    * @param array $files
 332    *   The uploaded files if any.
 333    * @param $self
 334    *
 335    * @return bool|array
 336    *   true if no errors, else array of errors
 337    */
 338   public static function formRule($fields, $files, $self) {
 339     // skip form rule if deleting
 340     if (CRM_Utils_Array::value('_qf_Activity_next_', $fields) == 'Delete' || CRM_Utils_Array::value('_qf_Activity_next_', $fields) == 'Restore') {
 341       return TRUE;
 342     }
 343
 344     return parent::formrule($fields, $files, $self);
 345   }
 346
 347   /**
 348    * Process the form submission.
 349    *
 350    * @param array $params
 351    */
 352   public function postProcess($params = NULL) {
 353     $transaction = new CRM_Core_Transaction();
 354
 355     if ($this->_action & CRM_Core_Action::DELETE) {
 356       $statusMsg = NULL;
 357
 358       //block deleting activities which affects
 359       //case attributes.CRM-4543
 360       $activityCondition = " AND v.name IN ('Open Case', 'Change Case Type', 'Change Case Status', 'Change Case Start Date')";
 361       $caseAttributeActivities = CRM_Core_OptionGroup::values('activity_type', FALSE, FALSE, FALSE, $activityCondition);
 362
 363       if (!array_key_exists($this->_activityTypeId, $caseAttributeActivities)) {
 364         $params = array('id' => $this->_activityId);
 365         $activityDelete = CRM_Activity_BAO_Activity::deleteActivity($params, TRUE);
 366         if ($activityDelete) {
 367           $statusMsg = ts('The selected activity has been moved to the Trash. You can view and / or restore deleted activities by checking "Deleted Activities" from the Case Activities search filter (under Manage Case).<br />');
 368         }
 369       }
 370       else {
 371         $statusMsg = ts("Selected Activity cannot be deleted.");
 372       }
 373
 374       $tagParams = array(
 375         'entity_table' => 'civicrm_activity',
 376         'entity_id' => $this->_activityId,
 377       );
 378       CRM_Core_BAO_EntityTag::del($tagParams);
 379
 380       CRM_Core_Session::setStatus('', $statusMsg, 'info');
 381       return;
 382     }
 383
 384     if ($this->_action & CRM_Core_Action::RENEW) {
 385       $statusMsg = NULL;
 386       $params = array('id' => $this->_activityId);
 387       $activityRestore = CRM_Activity_BAO_Activity::restoreActivity($params);
 388       if ($activityRestore) {
 389         $statusMsg = ts('The selected activity has been restored.<br />');
 390       }
 391       CRM_Core_Session::setStatus('', $statusMsg, 'info');
 392       return;
 393     }
 394
 395     // store the submitted values in an array
 396     $params = $this->controller->exportValues($this->_name);
 397
 398     //set parent id if its edit mode
 399     if ($parentId = CRM_Utils_Array::value('parent_id', $this->_defaults)) {
 400       $params['parent_id'] = $parentId;
 401     }
 402
 403     // store the dates with proper format
 404     $params['activity_date_time'] = CRM_Utils_Date::processDate($params['activity_date_time'], $params['activity_date_time_time']);
 405     $params['activity_type_id'] = $this->_activityTypeId;
 406
 407     // format with contact (target contact) values
 408     if (isset($params['target_contact_id'])) {
 409       $params['target_contact_id'] = explode(',', $params['target_contact_id']);
 410     }
 411     else {
 412       $params['target_contact_id'] = array();
 413     }
 414
 415     // format activity custom data
 416     if (!empty($params['hidden_custom'])) {
 417       if ($this->_activityId) {
 418         // retrieve and include the custom data of old Activity
 419         $oldActivity = civicrm_api3('Activity', 'getsingle', array('id' => $this->_activityId));
 420         $params = array_merge($oldActivity, $params);
 421
 422         // unset custom fields-id from params since we want custom
 423         // fields to be saved for new activity.
 424         foreach ($params as $key => $value) {
 425           $match = array();
 426           if (preg_match('/^(custom_\d+_)(\d+)$/', $key, $match)) {
 427             $params[$match[1] . '-1'] = $params[$key];
 428
 429             // for autocomplete transfer hidden value instead of label
 430             if ($params[$key] && isset($params[$key . '_id'])) {
 431               $params[$match[1] . '-1_id'] = $params[$key . '_id'];
 432               unset($params[$key . '_id']);
 433             }
 434             unset($params[$key]);
 435           }
 436         }
 437       }
 438
 439       // build custom data getFields array
 440       $customFields = CRM_Core_BAO_CustomField::getFields('Activity', FALSE, FALSE, $this->_activityTypeId);
 441       $customFields = CRM_Utils_Array::crmArrayMerge($customFields,
 442         CRM_Core_BAO_CustomField::getFields('Activity', FALSE, FALSE,
 443           NULL, NULL, TRUE
 444         )
 445       );
 446       $params['custom'] = CRM_Core_BAO_CustomField::postProcess($params,
 447         $this->_activityId,
 448         'Activity'
 449       );
 450     }
 451
 452     // assigning formatted value
 453     if (!empty($params['assignee_contact_id'])) {
 454       $params['assignee_contact_id'] = explode(',', $params['assignee_contact_id']);
 455     }
 456     else {
 457       $params['assignee_contact_id'] = array();
 458     }
 459
 460     if (isset($this->_activityId)) {
 461       // activity which hasn't been modified by a user yet
 462       if ($this->_defaults['is_auto'] == 1) {
 463         $params['is_auto'] = 0;
 464       }
 465
 466       // always create a revision of an case activity. CRM-4533
 467       $newActParams = $params;
 468
 469       // add target contact values in update mode
 470       if (empty($params['target_contact_id']) && !empty($this->_defaults['target_contact'])) {
 471         $newActParams['target_contact_id'] = $this->_defaults['target_contact'];
 472       }
 473     }
 474
 475     if (!isset($newActParams)) {
 476       // add more attachments if needed for old activity
 477       CRM_Core_BAO_File::formatAttachment($params,
 478         $params,
 479         'civicrm_activity'
 480       );
 481
 482       // call begin post process, before the activity is created/updated.
 483       $this->beginPostProcess($params);
 484       foreach ($this->_caseId as $key => $val) {
 485         $params['case_id'] = $val;
 486         // activity create/update
 487         $activity = CRM_Activity_BAO_Activity::create($params);
 488         $vvalue[] = array('case_id' => $val, 'actId' => $activity->id);
 489         // call end post process, after the activity has been created/updated.
 490         $this->endPostProcess($params, $activity);
 491       }
 492     }
 493     else {
 494       // since the params we need to set are very few, and we don't want rest of the
 495       // work done by bao create method , lets use dao object to make the changes
 496       $params = array('id' => $this->_activityId);
 497       $params['is_current_revision'] = 0;
 498       $activity = new CRM_Activity_DAO_Activity();
 499       $activity->copyValues($params);
 500       $activity->save();
 501     }
 502
 503     // create a new version of activity if activity was found to
 504     // have been modified/created by user
 505     if (isset($newActParams)) {
 506       // set proper original_id
 507       if (!empty($this->_defaults['original_id'])) {
 508         $newActParams['original_id'] = $this->_defaults['original_id'];
 509       }
 510       else {
 511         $newActParams['original_id'] = $activity->id;
 512       }
 513
 514       //is_current_revision will be set to 1 by default.
 515       // add attachments if any
 516       CRM_Core_BAO_File::formatAttachment($newActParams,
 517         $newActParams,
 518         'civicrm_activity'
 519       );
 520
 521       // call begin post process, before the activity is created/updated.
 522       $this->beginPostProcess($newActParams);
 523       foreach ($this->_caseId as $key => $val) {
 524         $newActParams['case_id'] = $val;
 525         $activity = CRM_Activity_BAO_Activity::create($newActParams);
 526         $vvalue[] = array('case_id' => $val, 'actId' => $activity->id);
 527         // call end post process, after the activity has been created/updated.
 528         $this->endPostProcess($newActParams, $activity);
 529       }
 530       // copy files attached to old activity if any, to new one,
 531       // as long as users have not selected the 'delete attachment' option.
 532       if (empty($newActParams['is_delete_attachment'])) {
 533         CRM_Core_BAO_File::copyEntityFile('civicrm_activity', $this->_activityId,
 534           'civicrm_activity', $activity->id
 535         );
 536       }
 537
 538       // copy back params to original var
 539       $params = $newActParams;
 540     }
 541
 542     foreach ($vvalue as $vkey => $vval) {
 543       if ($vval['actId']) {
 544         // add tags if exists
 545         $tagParams = array();
 546         if (!empty($params['tag'])) {
 547           foreach ($params['tag'] as $tag) {
 548             $tagParams[$tag] = 1;
 549           }
 550         }
 551
 552         //save static tags
 553         CRM_Core_BAO_EntityTag::create($tagParams, 'civicrm_activity', $vval['actId']);
 554
 555         //save free tags
 556         if (isset($params['taglist']) && !empty($params['taglist'])) {
 557           CRM_Core_Form_Tag::postProcess($params['taglist'], $vval['actId'], 'civicrm_activity', $this);
 558         }
 559       }
 560
 561       // update existing case record if needed
 562       $caseParams = $params;
 563       $caseParams['id'] = $vval['case_id'];
 564       if (!empty($caseParams['case_status_id'])) {
 565         $caseParams['status_id'] = $caseParams['case_status_id'];
 566       }
 567
 568       // unset params intended for activities only
 569       unset($caseParams['subject'], $caseParams['details'],
 570         $caseParams['status_id'], $caseParams['custom']
 571       );
 572       $case = CRM_Case_BAO_Case::create($caseParams);
 573       // create case activity record
 574       $caseParams = array(
 575         'activity_id' => $vval['actId'],
 576         'case_id' => $vval['case_id'],
 577       );
 578       CRM_Case_BAO_Case::processCaseActivity($caseParams);
 579     }
 580
 581     // Insert civicrm_log record for the activity (e.g. store the
 582     // created / edited by contact id and date for the activity)
 583     // Note - civicrm_log is already created by CRM_Activity_BAO_Activity::create()
 584
 585     // send copy to selected contacts.
 586     $mailStatus = '';
 587     $mailToContacts = array();
 588
 589     //CRM-5695
 590     //check for notification settings for assignee contacts
 591     $selectedContacts = array('contact_check');
 592     $activityContacts = CRM_Core_OptionGroup::values('activity_contacts', FALSE, FALSE, FALSE, NULL, 'name');
 593     $assigneeID = CRM_Utils_Array::key('Activity Assignees', $activityContacts);
 594     if (Civi::settings()->get('activity_assignee_notification')) {
 595       $selectedContacts[] = 'assignee_contact_id';
 596     }
 597
 598     foreach ($vvalue as $vkey => $vval) {
 599       foreach ($selectedContacts as $dnt => $val) {
 600         if (array_key_exists($val, $params) && !CRM_Utils_array::crmIsEmptyArray($params[$val])) {
 601           if ($val == 'contact_check') {
 602             $mailStatus = ts("A copy of the activity has also been sent to selected contacts(s).");
 603           }
 604           else {
 605             $this->_relatedContacts = CRM_Activity_BAO_ActivityAssignment::getAssigneeNames(array($vval['actId']), TRUE, FALSE);
 606             $mailStatus .= ' ' . ts("A copy of the activity has also been sent to assignee contacts(s).");
 607           }
 608           //build an associative array with unique email addresses.
 609           foreach ($params[$val] as $key => $value) {
 610             if ($val == 'contact_check') {
 611               $id = $key;
 612             }
 613             else {
 614               $id = $value;
 615             }
 616
 617             if (isset($id) && array_key_exists($id, $this->_relatedContacts) && isset($this->_relatedContacts[$id]['email'])) {
 618               //if email already exists in array then append with ', ' another role only otherwise add it to array.
 619               if ($contactDetails = CRM_Utils_Array::value($this->_relatedContacts[$id]['email'], $mailToContacts)) {
 620                 $caseRole = CRM_Utils_Array::value('role', $this->_relatedContacts[$id]);
 621                 $mailToContacts[$this->_relatedContacts[$id]['email']]['role'] = $contactDetails['role'] . ', ' . $caseRole;
 622               }
 623               else {
 624                 $mailToContacts[$this->_relatedContacts[$id]['email']] = $this->_relatedContacts[$id];
 625               }
 626             }
 627           }
 628         }
 629       }
 630
 631       $extraParams = array('case_id' => $vval['case_id'], 'client_id' => $this->_currentlyViewedContactId);
 632       $result = CRM_Activity_BAO_Activity::sendToAssignee($activity, $mailToContacts, $extraParams);
 633       if (empty($result)) {
 634         $mailStatus = '';
 635       }
 636
 637       // create follow up activity if needed
 638       $followupStatus = '';
 639       if (!empty($params['followup_activity_type_id'])) {
 640         $followupActivity = CRM_Activity_BAO_Activity::createFollowupActivity($vval['actId'], $params);
 641
 642         if ($followupActivity) {
 643           $caseParams = array(
 644             'activity_id' => $followupActivity->id,
 645             'case_id' => $vval['case_id'],
 646           );
 647           CRM_Case_BAO_Case::processCaseActivity($caseParams);
 648           $followupStatus = ts("A followup activity has been scheduled.") . '<br /><br />';
 649         }
 650       }
 651       $title = ts("%1 Saved", array(1 => $this->_activityTypeName));
 652       CRM_Core_Session::setStatus($followupStatus . $mailStatus, $title, 'success');
 653     }
 654   }
 655
 656 }