content: /*
   *  Copyright (C) 2010-2012 Stichting Akvo (Akvo Foundation)
   *
   *  This file is part of Akvo FLOW.
   *
   *  Akvo FLOW is free software: you can redistribute it and modify it under the terms of
   *  the GNU Affero General Public License (AGPL) as published by the Free Software Foundation,
   *  either version 3 of the License or any later version.
   *
   *  Akvo FLOW is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
   *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   *  See the GNU Affero General Public License included below for more details.
   *
   *  The full license text can also be seen at <http://www.gnu.org/licenses/agpl.html>.
   */
  
  package com.gallatinsystems.survey.dao;
  
  import java.util.Collection;
  import java.util.List;
  import java.util.TreeMap;
  
  import com.gallatinsystems.framework.dao.BaseDAO;
  import com.gallatinsystems.survey.domain.QuestionHelpMedia;
  import com.gallatinsystems.survey.domain.Translation;
  
  /**
   * dao for manipulation of HelpMedia objects
   *
   * @author Christopher Fagiani
   */
  public class QuestionHelpMediaDao extends BaseDAO<QuestionHelpMedia> {
  
      private TranslationDao translationDao;
  
      public QuestionHelpMediaDao() {
          super(QuestionHelpMedia.class);
          translationDao = new TranslationDao();
      }
  
      /**
       * lists all help objects for a given question, including any translations.
       *
       * @param questionId
       * @return
       */
      public TreeMap<Integer, QuestionHelpMedia> listHelpByQuestion(
              Long questionId) {
          List<QuestionHelpMedia> hList = listByProperty("questionId",
                  questionId, "Long");
          TreeMap<Integer, QuestionHelpMedia> map = new TreeMap<Integer, QuestionHelpMedia>();
          if (hList != null) {
              int i = 1;
              for (QuestionHelpMedia h : hList) {
                  h.setTranslationMap(translationDao.findTranslations(
                          Translation.ParentType.QUESTION_HELP_MEDIA_TEXT, h
                                  .getKey().getId()));
                  map.put(i++, h);
              }
          }
          return map;
      }
  
      /**
       * Delete all the question help media items associated with a specific question
       *
       * @param questionId
       */
      public void deleteHelpMediaForQuestion(Long questionId) {
          TranslationDao tDao = new TranslationDao();
          Collection<QuestionHelpMedia> helpMediaList = listHelpByQuestion(questionId).values();
          for (QuestionHelpMedia helpMedia : helpMediaList) {
              tDao.deleteTranslationsForParent(helpMedia.getKey().getId(),
                      Translation.ParentType.QUESTION_HELP_MEDIA_TEXT);
          }
          super.delete(helpMediaList);
      }
  }
  