/** Web service operation */
@WebMethod(operationName = "getQuestionById")
@WebResult(name = "Question")
public Question getQuestionById(@WebParam(name = "id") int id) {
Question questionresult = null;
try {
Statement statement = conn.createStatement();
String sql;
sql = "SELECT * FROM Question WHERE id=?";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setInt(1, id);
ResultSet result = dbStatement.executeQuery();
if (result.next()) {
int count = countAnswer(result.getInt("id"));
UserWS userws = new UserWS();
User user = userws.getUserById(result.getInt("user_id"));
questionresult =
new Question(
result.getInt("id"),
result.getInt("user_id"),
result.getString("topic"),
result.getString("content"),
result.getInt("vote"),
result.getString("date"),
count,
user.getUserName());
} else {
questionresult = new Question();
}
result.close();
statement.close();
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
return questionresult;
}
@WebMethod(operationName = "showAllQuestion")
@WebResult(name = "Question")
public java.util.ArrayList<Question> showAllQuestion() {
ArrayList<Question> questions = new ArrayList<Question>();
try {
Statement statement = conn.createStatement();
String sql;
sql = "SELECT * FROM Question ORDER BY id DESC";
PreparedStatement dbStatement = conn.prepareStatement(sql);
ResultSet result = dbStatement.executeQuery();
while (result.next()) {
int count = countAnswer(result.getInt("id"));
UserWS userws = new UserWS();
User user = userws.getUserById(result.getInt("user_id"));
questions.add(
new Question(
result.getInt("id"),
result.getInt("user_id"),
result.getString("topic"),
result.getString("content"),
result.getInt("vote"),
result.getString("date"),
count,
user.getUserName()));
}
result.close();
statement.close();
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
return questions;
}
@WebMethod(operationName = "getAnswerByQuestionId")
@WebResult(name = "Answer")
public java.util.ArrayList<Answer> getAnswerByQuestionId(@WebParam(name = "id") int id) {
ArrayList<Answer> answers = new ArrayList<Answer>();
try {
Statement statement = conn.createStatement();
String sql;
sql = "SELECT * FROM Answer WHERE question_id=?";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setInt(1, id);
ResultSet result = dbStatement.executeQuery();
while (result.next()) {
UserWS userws = new UserWS();
User user = userws.getUserById(result.getInt("user_id"));
answers.add(
new Answer(
result.getInt("id"),
result.getInt("question_id"),
result.getInt("user_id"),
result.getString("content"),
result.getInt("vote"),
result.getString("date"),
user.getUserName()));
}
result.close();
statement.close();
} catch (SQLException ex) {
Logger.getLogger(AnswerWS.class.getName()).log(Level.SEVERE, null, ex);
}
return answers;
}
@WebMethod(operationName = "insertQuestion")
@WebResult(name = "Question")
public int insertQuestion(
@WebParam(name = "Question") Question q, @WebParam(name = "token") String token) {
int insertsuccessful = 1, tokenUserId = 0; // nanti diganti fungsi validasi
if (insertsuccessful == 1) {
try {
String sql;
Statement statement = conn.createStatement();
sql = "SELECT user_id FROM tokenlist WHERE token = ? LIMIT 1";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setString(1, token);
ResultSet result = dbStatement.executeQuery();
tokenUserId = 0;
if (result.next()) {
tokenUserId = result.getInt("user_id");
} else {
tokenUserId = 0;
}
statement.close();
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
try {
Statement statement = conn.createStatement();
String sql;
sql = "INSERT INTO Question (user_id, topic, content, vote, date) VALUES (?,?,?,0,now())";
PreparedStatement dbStatement = conn.prepareStatement(sql, Statement.RETURN_GENERATED_KEYS);
dbStatement.setInt(1, tokenUserId);
dbStatement.setString(2, q.getQuestionTopic());
dbStatement.setString(3, q.getQuestionContent());
dbStatement.executeUpdate();
statement.close();
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
}
return insertsuccessful;
}
@WebMethod(operationName = "voteQuestion")
@WebResult(name = "Success")
public int voteQuestion(
@WebParam(name = "id") int id,
@WebParam(name = "token") String token,
@WebParam(name = "flag") int flag) {
int votesuccessful = 0, questionUserId = 0, tokenUserId = 0, isvoted = 0;
try {
String sql;
Statement statement = conn.createStatement();
sql = "SELECT user_id FROM tokenlist WHERE token = ? LIMIT 1";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setString(1, token);
ResultSet result = dbStatement.executeQuery();
if (result.next()) {
tokenUserId = result.getInt("user_id");
}
statement.close();
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
try {
String sql;
Statement statement = conn.createStatement();
sql = "SELECT id FROM vote_question WHERE user_id = ? AND question_id = ?";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setInt(1, tokenUserId);
dbStatement.setInt(2, id);
ResultSet result = dbStatement.executeQuery();
statement.close();
if (result.next()) {
} else {
try {
statement = conn.createStatement();
sql = "UPDATE question SET vote = vote+? WHERE id = ?";
dbStatement = conn.prepareStatement(sql);
dbStatement.setInt(1, flag);
dbStatement.setInt(2, id);
dbStatement.executeUpdate();
sql = "INSERT INTO vote_question (question_id, user_id) VALUES (?, ?)";
dbStatement = conn.prepareStatement(sql);
dbStatement.setInt(1, id);
dbStatement.setInt(2, tokenUserId);
dbStatement.executeUpdate();
statement.close();
votesuccessful = 1;
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
}
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
return votesuccessful;
}
@WebMethod(operationName = "editQuestion")
@WebResult(name = "NewQuestion")
public int editQuestion(
@WebParam(name = "id") int id,
@WebParam(name = "topic") String newtopic,
@WebParam(name = "content") String newcontent,
@WebParam(name = "token") String token) {
int editsuccessful = 0, questionUserId = 0, tokenUserId = 0;
try {
String sql;
Statement statement = conn.createStatement();
sql = "SELECT user_id FROM Question WHERE id = ? LIMIT 1";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setInt(1, id);
ResultSet result = dbStatement.executeQuery();
questionUserId = 0;
if (result.next()) {
questionUserId = result.getInt("user_id");
} else {
questionUserId = 0;
}
statement.close();
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
try {
String sql;
Statement statement = conn.createStatement();
sql = "SELECT user_id FROM tokenlist WHERE token = ? LIMIT 1";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setString(1, token);
ResultSet result = dbStatement.executeQuery();
tokenUserId = 0;
if (result.next()) {
tokenUserId = result.getInt("user_id");
} else {
tokenUserId = 0;
}
statement.close();
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
if (questionUserId == tokenUserId) {
try {
String sql;
Statement statement = conn.createStatement();
sql = "UPDATE Question SET topic = ?, content = ? WHERE id = ?";
PreparedStatement dbStatement = conn.prepareStatement(sql);
dbStatement.setString(1, newtopic);
dbStatement.setString(2, newcontent);
dbStatement.setInt(3, id);
dbStatement.executeUpdate();
statement.close();
editsuccessful = 1;
AnswerWS answers = new AnswerWS();
answers.deleteAnswer(id);
} catch (SQLException ex) {
Logger.getLogger(QuestionWS.class.getName()).log(Level.SEVERE, null, ex);
}
}
return editsuccessful;
}