/**
  * Retrieve submitter recipients for a given artifact
  *
  * @param Tracker_Artifact $artifact
  *
  * @return Array of PFUser
  */
 function getRecipientsFromArtifact(Tracker_Artifact $artifact)
 {
     $recipients = array();
     $userManager = $artifact->getUserManager();
     $userId = $artifact->getSubmittedBy();
     $user = $userManager->getUserById($userId);
     if ($user) {
         $recipients[$userId] = $user;
     }
     return $recipients;
 }
 /**
  * Fetch the field value in artifact to be displayed in mail
  *
  * @param Tracker_Artifact                $artifact         The artifact
  * @param Tracker_Artifact_ChangesetValue $value            The actual value of the field
  * @param string                          $format           mail format
  *
  * @return string
  */
 public function fetchMailArtifactValue(Tracker_Artifact $artifact, Tracker_Artifact_ChangesetValue $value = null, $format = 'text')
 {
     $output = '';
     $value = new Tracker_FormElement_Field_List_Bind_UsersValue($artifact->getSubmittedBy());
     switch ($format) {
         case 'html':
             $output .= $this->fetchArtifactValueReadOnly($artifact);
             break;
         default:
             $output = $this->getBind()->formatMailArtifactValue($value->getId());
             break;
     }
     return $output;
 }
 /**
  * @see Tracker_FormElement_Field::fetchCardValue()
  */
 public function fetchCardValue(Tracker_Artifact $artifact, Tracker_CardDisplayPreferences $display_preferences)
 {
     $value = new Tracker_FormElement_Field_List_Bind_UsersValue($artifact->getSubmittedBy());
     return $value->fetchCard($display_preferences);
 }