/*
*
* Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved.
*
* This file is part of Entando software.
* Entando is a free software;
* You can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) as published by the Free Software Foundation; version 2.
*
* See the file License for the specific language governing permissions
* and limitations under the License
*
*
*
* Copyright 2013 Entando S.r.l. (http://www.entando.com) All rights reserved.
*
*/
package com.agiletec.plugins.jpsurvey.aps.system.services.survey;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.util.ArrayList;
import java.util.List;
import com.agiletec.aps.util.ApsProperties;
import com.agiletec.plugins.jpsurvey.aps.system.services.AbstractSurveyDAO;
import com.agiletec.plugins.jpsurvey.aps.system.services.survey.model.Choice;
import com.agiletec.plugins.jpsurvey.aps.system.services.survey.model.Question;
/**
* This DAO class allow to select individual 'question's of the survey
* @author M.E. Minnai
*/
public class QuestionDAO extends AbstractSurveyDAO implements IQuestionDAO {
@Override
public Question loadQuestion(int id) {
Question question = null;
Connection conn = null;
PreparedStatement stat = null;
ResultSet res = null;
try {
conn = this.getConnection();
stat = conn.prepareStatement(GET_COMPLETE_QUESTION_BY_ID);
stat.setInt(1, id);
res = stat.executeQuery();
while (res.next()) {
if (null == question) {
question = this.buildQuestionRecordFromResultSet(res, 1);
}
// get extra info: questions need the survey type
int questionnaireValue = res.getInt(13);
boolean questionnaire = questionnaireValue == 1 ? true:false;
ApsProperties titles = new ApsProperties();
titles.loadFromXml(res.getString(14));
question.setExtraInfo(questionnaire, titles);
Choice choice = this.buildChoiceRecordFromResultSet(res, 8);
if (null == choice) continue;
choice.setExtraInfo(question.getSurveyId(), question.isQuestionnaire(), question.getSurveyTitles(), question.getQuestions());
if (null == question.getChoice(choice.getId())) {
question.getChoices().add(choice);
}
}
} catch (Throwable t) {
processDaoException(t, "Error while loading the question of ID "+id, "loadQuestion");
} finally {
closeDaoResources(res, stat, conn);
}
return question;
}
@Override
public List<Choice> getQuestionChoices(int id) {
List<Choice> list = new ArrayList<Choice>();
try {
Question question = this.loadQuestion(id);
if (null != question) {
list = question.getChoices();
}
} catch (Throwable t) {
processDaoException(t, "Error while loading the choices belonging to the question of ID " + id, "loadQuestion");
}
return list;
}
@Override
public void saveQuestion(Question question) {
Connection conn = null;
try {
conn = this.getConnection();
conn.setAutoCommit(false);
this.saveQuestion(conn, question);
conn.commit();
} catch (Throwable t) {
this.executeRollback(conn);
processDaoException(t, "Error while saving the question", "saveQuestion");
} finally {
this.refreshExtraInfo(question);
closeConnection(conn);
}
}
@Override
public void deleteQuestion(int id) {
Connection conn = null;
try {
conn = this.getConnection();
conn.setAutoCommit(false);
this.deleteQuestion(conn, id);
conn.commit();
} catch (Throwable t) {
this.executeRollback(conn);
processDaoException(t, "Error while deleting the question", "deleteQuestion");
} finally {
closeConnection(conn);
}
}
@Override
public void updateQuestion(Question question) {
Connection conn = null;
try {
conn = this.getConnection();
conn.setAutoCommit(false);
this.updateQuestion(conn, question);
conn.commit();
} catch (Throwable t) {
this.executeRollback(conn);
processDaoException(t, "Error while updating a 'question'", "deleteQuestion");
} finally {
this.refreshExtraInfo(question);
closeConnection(conn);
}
}
@Override
public void deleteQuestionBySurveyId(int id) {
Connection conn = null;
try {
conn = this.getConnection();
conn.setAutoCommit(false);
this.deleteQuestionBySurveyId(conn, id);
conn.commit();
} catch (Throwable t) {
this.executeRollback(conn);
processDaoException(t, "Error while updating a question in the database", "deleteQuestionsBySurveyId");
} finally {
closeConnection(conn);
}
}
@Override
public void swapQuestionPosition(Question questionToSwap, List<Question> questions, boolean up) {
Connection conn = null;
PreparedStatement stat = null;
ResultSet res = null;
Question nearQuestionToSwap = null;
try {
for (int i = 0; i < questions.size(); i++) {
Question question = questions.get(i);
if (question.getId() == questionToSwap.getId()) {
if (up && i>0) {
nearQuestionToSwap = questions.get(i-1);
} else if (!up && i<(questions.size()-1)) {
nearQuestionToSwap = questions.get(i+1);
}
break;
}
}
if (null == nearQuestionToSwap) {
return;
}
conn = this.getConnection();
conn.setAutoCommit(false);
int initPos = questionToSwap.getPos();
questionToSwap.setPos(nearQuestionToSwap.getPos());
nearQuestionToSwap.setPos(initPos);
this.updateQuestionPosition(conn, nearQuestionToSwap);
this.updateQuestionPosition(conn, questionToSwap);
conn.commit();
} catch (Throwable t) {
this.executeRollback(conn);
processDaoException(t, "Errore swapping position of two 'choice' objects", "swapQuestionPosition");
} finally {
closeDaoResources(res, stat, conn);
}
}
private void updateQuestionPosition(Connection conn, Question questionToMove) {
PreparedStatement stat = null;
try {
stat = conn.prepareStatement(MOVE_QUESTION);
stat.setInt(1, questionToMove.getPos());
stat.setInt(2, questionToMove.getId());
stat.executeUpdate();
} catch (Throwable t) {
this.executeRollback(conn);
processDaoException(t, "Error while updating the position of question", "updateQuestionPosition");
} finally {
closeDaoResources(null, stat);
}
}
@Override
public void saveQuestionInSortedPosition(Question question) {
Connection conn = null;
PreparedStatement stat = null;
ResultSet res = null;
try {
conn = this.getConnection();
conn.setAutoCommit(false);
stat = conn.prepareStatement(GET_QUESTION_GREATER_POS);
stat.setInt(1, question.getSurveyId());
res = stat.executeQuery();
if (res.next()) {
int lastPosition = res.getInt(1);
question.setPos(++lastPosition);
} else {
question.setPos(0);
}
this.saveQuestion(conn, question);
conn.commit();
} catch (Throwable t) {
this.executeRollback(conn);
processDaoException(t, "Error while saving a question in a sorted position", "saveQuestionInSortedPosition");
} finally {
closeDaoResources(res, stat, conn);
}
}
private static final String GET_COMPLETE_QUESTION_BY_ID =
"SELECT " +
// questions 1 - 7
"jpsurvey_questions.id, surveyid, question, jpsurvey_questions.pos, singlechoice, minresponsenumber, maxresponsenumber, "+
// choices 8 - 12
"jpsurvey_choices.id, questionid, choice, jpsurvey_choices.pos, freetext, " +
// extra info 13 - 14
"jpsurvey.questionnaire, jpsurvey.title " +
" FROM jpsurvey " +
" LEFT JOIN jpsurvey_questions ON jpsurvey.id = jpsurvey_questions.surveyid " +
" LEFT JOIN jpsurvey_choices ON jpsurvey_questions.id = jpsurvey_choices.questionid " +
"WHERE jpsurvey_questions.id= ? ORDER BY jpsurvey_questions.pos, jpsurvey_choices.pos ";
private static final String MOVE_QUESTION =
"UPDATE jpsurvey_questions SET pos = ? WHERE id = ? ";
private static final String GET_QUESTION_GREATER_POS =
"SELECT pos FROM jpsurvey_questions WHERE surveyid = ? ORDER BY pos DESC";
}