InterestManager.inc.php

<?php
 
class InterestManager {
   function __construct() {
   }
 
   function getAllInterests($filter = null) {
      $interestDao = DAORegistry::getDAO('InterestDAO'); /* @var $interestDao InterestDAO */
      $interests = $interestDao->getAllInterests($filter);
 
      $interestReturner = array();
      while($interest = $interests->next()) {
         $interestReturner[] = $interest->getInterest();
      }
 
      return $interestReturner;
   }
 
   function getInterestsForUser($user) {
      static $interestsCache = array();
      $interests = array();
 
      $interestDao = DAORegistry::getDAO('InterestDAO'); /* @var $interestDao InterestDAO */
      $interestEntryDao = DAORegistry::getDAO('InterestEntryDAO'); /* @var $interestEntryDao InterestEntryDAO */
      $controlledVocab = $interestDao->build();
      foreach($interestDao->getUserInterestIds($user->getId()) as $interestEntryId) {
         if (!isset($interestsCache[$interestEntryId])) {
            $interestsCache[$interestEntryId] = $interestEntryDao->getById(
               $interestEntryId,
               $controlledVocab->getId()
            );
         }
         if (isset($interestsCache[$interestEntryId])) {
            $interests[] = $interestsCache[$interestEntryId]->getInterest();
         }
      }
 
      return $interests;
   }
 
   function getInterestsString($user) {
      $interests = $this->getInterestsForUser($user);
 
      return implode(', ', $interests);
   }
 
   function setInterestsForUser($user, $interests) {
      $interestDao = DAORegistry::getDAO('InterestDAO'); /* @var $interestDao InterestDAO */
      $interests = is_array($interests) ? $interests : (empty($interests) ? null : explode(",", $interests));
      $interestDao->setUserInterests($interests, $user->getId());
   }
}