public function getMyAnswer($user_id = null)
{
$user_id || ($user_id = $GLOBALS['user']->id);
if (!$user_id || $user_id === "nobody") {
$answer = new QuestionnaireAnswer();
$answer['user_id'] = $user_id;
$answer['question_id'] = $this->getId();
return $answer;
}
$statement = DBManager::get()->prepare("\n SELECT *\n FROM questionnaire_answers\n WHERE question_id = :question_id\n AND user_id = :me\n ");
$statement->execute(array('question_id' => $this->getId(), 'me' => $user_id));
$data = $statement->fetch(PDO::FETCH_ASSOC);
if ($data) {
return QuestionnaireAnswer::buildExisting($data);
} else {
$answer = new QuestionnaireAnswer();
$answer['user_id'] = $user_id;
$answer['question_id'] = $this->getId();
return $answer;
}
}
function up()
{
DBManager::get()->exec("\n CREATE TABLE IF NOT EXISTS `questionnaires` (\n `questionnaire_id` varchar(32) NOT NULL,\n `title` varchar(128) NOT NULL,\n `description` text NULL,\n `user_id` varchar(32) NOT NULL,\n `startdate` BIGINT(20) NULL,\n `stopdate` BIGINT(20) NULL,\n `visible` TINYINT(1) DEFAULT '0' NOT NULL,\n `anonymous` TINYINT(1) DEFAULT '0' NOT NULL,\n `resultvisibility` ENUM('always', 'never', 'afterending') DEFAULT 'always' NOT NULL,\n `editanswers` TINYINT(1) DEFAULT '1' NOT NULL,\n `chdate` bigint(20) NOT NULL,\n `mkdate` bigint(20) NOT NULL,\n PRIMARY KEY (`questionnaire_id`),\n KEY `user_id` (`user_id`)\n )\n ");
DBManager::get()->exec("\n CREATE TABLE IF NOT EXISTS `questionnaire_questions` (\n `question_id` varchar(32) NOT NULL,\n `questionnaire_id` varchar(32) NOT NULL,\n `questiontype` varchar(64) NOT NULL,\n `questiondata` text NOT NULL,\n `position` INT NOT NULL,\n `chdate` bigint(20) NOT NULL,\n `mkdate` bigint(20) NOT NULL,\n PRIMARY KEY (`question_id`),\n KEY `questionnaire_id` (`questionnaire_id`)\n )\n ");
DBManager::get()->exec("\n CREATE TABLE IF NOT EXISTS `questionnaire_assignments` (\n `assignment_id` varchar(32) NOT NULL,\n `questionnaire_id` varchar(32) NOT NULL,\n `range_id` varchar(32) NOT NULL,\n `range_type` varchar(64) NOT NULL,\n `user_id` varchar(32) NOT NULL,\n `chdate` bigint(20) NOT NULL,\n `mkdate` int(11) NOT NULL,\n PRIMARY KEY (`assignment_id`),\n KEY `questionnaire_id` (`questionnaire_id`),\n KEY `range_id_range_type` (`range_id`,`range_type`),\n KEY `user_id` (`user_id`)\n )\n ");
DBManager::get()->exec("\n CREATE TABLE IF NOT EXISTS `questionnaire_answers` (\n `answer_id` varchar(32) NOT NULL,\n `question_id` varchar(32) NOT NULL,\n `user_id` varchar(32) NULL,\n `answerdata` text NOT NULL,\n `chdate` bigint(20) NOT NULL,\n `mkdate` bigint(20) NOT NULL,\n PRIMARY KEY (`answer_id`),\n KEY `question_id` (`question_id`),\n KEY `user_id` (`user_id`)\n )\n ");
DBManager::get()->exec("\n CREATE TABLE IF NOT EXISTS `questionnaire_anonymous_answers` (\n `anonymous_answer_id` varchar(32) NOT NULL,\n `questionnaire_id` varchar(32) NOT NULL,\n `user_id` varchar(32) NOT NULL,\n `chdate` bigint(20) NOT NULL,\n `mkdate` int(11) NOT NULL,\n PRIMARY KEY (`anonymous_answer_id`),\n KEY `questionnaire_id` (`questionnaire_id`),\n UNIQUE KEY `questionnaire_id_user_id` (`questionnaire_id`,`user_id`),\n KEY `user_id` (`user_id`)\n )\n ");
//now import old data into new tables:
$resultvisibility_mapping = array('ever' => 'always', 'delivery' => 'always', 'end' => 'afterending', 'never' => 'never');
$all_votes = DBManager::get()->prepare("\n SELECT * FROM vote\n ");
$all_votes->execute();
while ($vote = $all_votes->fetch(PDO::FETCH_ASSOC)) {
//Fragebogen erstellen
$questionnaire = new Questionnaire($vote['vote_id']);
$questionnaire['title'] = $vote['title'];
$questionnaire->setId($vote['vote_id']);
$questionnaire['user_id'] = $vote['author_id'];
$questionnaire['startdate'] = $vote['startdate'];
$questionnaire['stopdate'] = $vote['stopdate'] ?: (in_array($vote['state'], array("stopvis", "stopinvis")) ? time() : null);
$questionnaire['visible'] = in_array($vote['state'], array("active", "stopvis")) ? 1 : 0;
// stopvis new active stopinvis
$questionnaire['anonymous'] = $vote['anonymous'];
$questionnaire['resultvisibility'] = $resultvisibility_mapping[$vote['resultvisibility']];
$questionnaire['editanswers'] = $vote['changeable'];
$questionnaire['chdate'] = $vote['chdate'];
$questionnaire['mkdate'] = $vote['mkdate'];
$questionnaire->store();
//Tests und Umfragen anlegen
if ($vote['type'] === "vote") {
$question = new Vote();
$question['questiontype'] = "Vote";
} else {
$question = new Test();
$question['questiontype'] = "Test";
}
$questiondata = array();
$question['questionnaire_id'] = $questionnaire->getId();
$question['chdate'] = $vote['chdate'];
$question['mkdate'] = $vote['mkdate'];
$questiondata['multiplechoice'] = $vote['multiplechoice'];
$questiondata['question'] = $vote['question'];
$question['position'] = 1;
//Antwortmöglichkeiten vorsehen:
$options_statement = DBManager::get()->prepare("\n SELECT *\n FROM voteanswers\n WHERE vote_id = ?\n ORDER BY position ASC\n ");
$options_statement->execute(array($vote['vote_id']));
$options = $options_statement->fetchAll(PDO::FETCH_ASSOC);
$mapping = array();
$counter = array();
foreach ($options as $key => $option) {
$questiondata['options'][] = $option['answer'];
$mapping[$option['answer_id']] = $key + 1;
$counter[$option['answer_id']] = $option['counter'];
if ($vote['type'] === "test" && $option['correct']) {
$questiondata['correctanswer'][] = $key + 1;
}
}
$question['questiondata'] = $questiondata;
$question->store();
//Bestehende Antworten migrieren
if ($questionnaire['anonymous']) {
foreach ($counter as $answer_id => $count) {
for ($i = 0; $i < $count; $i++) {
$answer = new QuestionnaireAnswer();
$answer['user_id'] = null;
$answer['chdate'] = 1;
//damit man nicht aus dem chdate auf die user_id schließen kann
$answer['mkdate'] = 1;
//mkdate genauso
$answer['question_id'] = $question->getId();
$answerdata = array();
$answers = array($answer_id);
foreach ($answers as $key => $answer_data) {
$answers[$key] = $mapping[$answer_data];
}
sort($answers);
$answerdata['answers'] = $answers;
if (!$questiondata['multiplechoice']) {
$answerdata['answers'] = $answerdata['answers'][0];
}
$answer['answerdata'] = $answerdata;
$answer->store();
}
}
$statement = DBManager::get()->prepare("\n SELECT *\n FROM vote_user\n WHERE vote_id = :vote_id\n ");
$statement->execute(array('vote_id' => $vote['vote_id']));
foreach ($statement->fetchAll(PDO::FETCH_ASSOC) as $anonymous_vote) {
$anonymous_answer = new QuestionnaireAnonymousAnswer();
$anonymous_answer['questionnaire_id'] = $questionnaire->getId();
$anonymous_answer['user_id'] = $anonymous_vote['user_id'];
$anonymous_answer['chdate'] = $anonymous_vote['votedate'];
$anonymous_answer['mkdate'] = $anonymous_vote['votedate'];
$anonymous_answer->store();
}
} else {
$statement = DBManager::get()->prepare("\n SELECT GROUP_CONCAT(answer_id SEPARATOR ' ') AS answers, user_id, MAX(votedate) AS votedate\n FROM voteanswers_user\n WHERE answer_id IN (?)\n GROUP BY user_id\n ");
$statement->execute(array(array_keys($mapping)));
foreach ($statement->fetchAll(PDO::FETCH_ASSOC) as $answer_data) {
$answer = new QuestionnaireAnswer();
$answer['user_id'] = $answer_data['user_id'];
$answer['chdate'] = $answer_data['votedate'];
$answer['mkdate'] = $answer_data['votedate'];
$answer['question_id'] = $question->getId();
$answerdata = array();
$answers = explode(" ", $answer_data['answers']);
foreach ($answers as $key => $answer_data) {
$answers[$key] = $mapping[$answer_data];
}
sort($answers);
$answerdata['answers'] = $answers;
if (!$questiondata['multiplechoice']) {
$answerdata['answers'] = $answerdata['answers'][0];
}
$answer['answerdata'] = $answerdata;
$answer->store();
}
}
//Und noch einhängen das ganze:
$binding = new QuestionnaireAssignment();
$binding['questionnaire_id'] = $questionnaire->getId();
$binding['range_id'] = $vote['range_id'] !== "studip" ? $vote['range_id'] : "start";
$binding['range_type'] = $vote['range_id'] === "studip" ? "static" : ($vote['range_id'] === $vote['author_id'] ? "user" : (Institute::find($vote['range_id']) ? "institute" : "course"));
$binding['user_id'] = $vote['author_id'];
$binding['chdate'] = $questionnaire['chdate'];
$binding['mkdate'] = $questionnaire['mkdate'];
$binding->store();
}
//and finally clean up:
//DBManager::get()->exec("DROP TABLE IF EXISTS `vote`");
//DBManager::get()->exec("DROP TABLE IF EXISTS `voteanswers`");
//DBManager::get()->exec("DROP TABLE IF EXISTS `voteanswers_user`");
//DBManager::get()->exec("DROP TABLE IF EXISTS `vote_user`");
}
