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dbmanager.cpp
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dbmanager.cpp
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#include "dbmanager.h"
#include <QSqlQuery>
#include <QSqlError>
#include <QSqlRecord>
#include <QDebug>
#include <QDate>
DbManager::DbManager(const QString &path)
{
m_db = QSqlDatabase::addDatabase("QSQLITE");
m_db.setDatabaseName(path);
if (!m_db.open())
{
// qDebug() << "Error: connection with database failed";
} else
{
// qDebug() << "Database: connection ok";
}
}
DbManager::~DbManager()
{
if (m_db.isOpen())
{
m_db.close();
}
}
bool DbManager::isOpen() const
{
return m_db.isOpen();
}
bool DbManager::isValidDatabase()
{
bool success = true;
QSqlQuery query("SELECT ID, Date, Entry FROM journal ORDER BY Date DESC LIMIT 1;");
success = query.exec();
if(!success) {
success = false;
}
return success;
}
QString DbManager::printAllRecords()
{
// qDebug() << "all records db:";
bool success = false;
QSqlQuery query("SELECT Date, DayOfWeek, Entry FROM journal Order by Date DESC");
QString answer;
success = query.exec();
if (success) {
answer = queryAnswerFormatter(query);
}
return answer;
}
void DbManager::getLastRecord()
{
// qDebug() << "Last entry in journal:";
bool success = false;
QSqlQuery query("SELECT ID, Date, Entry FROM journal ORDER BY Date DESC LIMIT 1;");
success = query.exec();
if(!success) {
// qDebug() << "query failed";
} else {
assignClassVariablesWithOneQueryResult(query);
}
}
void DbManager::assignClassVariablesWithOneQueryResult(QSqlQuery &query) {
lastEntry = "";
lastID = 0;
lastDate = "";
while (query.next()) {
int idName = query.record().indexOf("Entry");
lastEntry = query.value(idName).toString();
idName = query.record().indexOf("Date");
lastDate = query.value(idName).toString();
idName = query.record().indexOf("ID");
lastID = query.value(idName).toInt();
// qDebug() << "last ID:" << lastID;
}
}
void DbManager::getRecordOnDate(const QDate &date)
{
bool success = false;
// qDebug() << "Entry on Date:";
QString dt = date.toString("yyyy-MM-dd");
// qDebug() << dt;
QSqlQuery query;
query.prepare("SELECT ID, Date, Entry FROM journal WHERE Date = (:dt)");
query.bindValue(":dt", dt);
success = query.exec();
if(!success) {
// qDebug() << "query failed";
} else {
assignClassVariablesWithOneQueryResult(query);
}
}
QString DbManager::searchTermQuery(const QString &term)
{
bool success = false;
QSqlQuery query;
QStringList terms = term.split(",");
int termNum = terms.size();
QString q("SELECT Date, DayOfWeek, Entry FROM journal WHERE (journal.Entry LIKE ?");
if (termNum > 1) {
for (int i=1;i<termNum;i++) {
q.append(" AND journal.Entry LIKE ?");
}
}
q.append(") ORDER BY Date");
query.prepare(q);
for (int i=0;i<termNum;i++) {
query.addBindValue(QString("\%" + terms.at(i) + "\%"));
}
qDebug() << q;
success = query.exec();
QString answer;
if (success) {
answer = queryAnswerFormatter(query);
}
return answer;
}
QString DbManager::queryAnswerFormatter(QSqlQuery &qry)
{
QString answer;
while(qry.next()) {
int idName = qry.record().indexOf("Entry");
QString entry = qry.value(idName).toString();
idName = qry.record().indexOf("Date");
QString dtString = qry.value(idName).toString();
idName = qry.record().indexOf("DayOfWeek");
QString dowString = qry.value(idName).toString();
answer.append(dtString + " " + dowString + "\n");
answer.append(entry + "\n");
answer.append("--------------------------------------------------");
answer.append("\n");
}
return answer;
}
QString DbManager::similarDateQuery(const QDate &date)
{
bool success = false;
QSqlQuery query;
query.prepare("SELECT Date, DayOfWeek, Entry from journal where Month = (:mnt) "
"and Day <= (:dyMax) and Day > (:dyMin) order by Date");
QString month(QDate::longMonthName(date.month()));
int dayMax = date.day() + 3;
int dayMin = date.day() - 3;
query.bindValue(":mnt", month);
query.bindValue(":dyMax", dayMax);
query.bindValue(":dyMin", dayMin);
success = query.exec();
QString answer;
if (success) {
answer = queryAnswerFormatter(query);
}
return answer;
}
void DbManager::updateQuery(QString item, QString val, int id)
{
bool success = false;
QSqlQuery qupdate;
QString q("UPDATE journal SET ");
q.append(item);
q.append("= (:etry) WHERE ID = (:idin);");
qupdate.prepare(q);
qupdate.bindValue(":etry", val);
qupdate.bindValue(":idin", id);
success = qupdate.exec();
if (success) {
// qDebug() << "existing record updated";
} else {
// qDebug() << "existing record update failed" << qupdate.lastError();
}
}
void DbManager::updateQuery(QString item, int val, int id)
{
bool success = false;
QSqlQuery qupdate;
QString q("UPDATE journal SET ");
q.append(item);
q.append("= (:etry) WHERE ID = (:idin);");
qupdate.prepare(q);
qupdate.bindValue(":etry", val);
qupdate.bindValue(":idin", id);
success = qupdate.exec();
if (success) {
// qDebug() << "existing record updated";
} else {
// qDebug() << "existing record update failed" << qupdate.lastError();
}
}
void DbManager::writeRecord(int &id, QString &dt, QString &mnth, int &dy, int &yr,
QString &dyOfWk, QString &entry)
{
bool success = false;
QSqlQuery checkQuery;
checkQuery.prepare("SELECT ID, Date FROM journal WHERE ID = (:idin)");
checkQuery.bindValue(":idin", id);
if (checkQuery.exec())
{
if (checkQuery.next())
{
updateQuery("Entry",entry,id);
updateQuery("Date", dt, id);
updateQuery("Month", mnth, id);
updateQuery("Day", dy, id);
updateQuery("Year", yr, id);
updateQuery("DayOfWeek", dyOfWk, id);
}
else
{
QSqlQuery query;
query.prepare("INSERT INTO journal(`ID`,`Date`,`Month`,`Day`,`Year`,`DayOfWeek`,`Entry`) "
"VALUES (:idin, :dtin, :mnin, :dyin, :yrin, :dowin, :ein);");
query.bindValue(":idin", id);
query.bindValue(":dtin", dt);
query.bindValue(":mnin", mnth);
query.bindValue(":dyin", dy);
query.bindValue(":yrin", yr);
query.bindValue(":dowin", dyOfWk);
query.bindValue(":ein", entry);
success = query.exec();
if (success) {
// qDebug() << "added new record";
} else {
// qDebug() << "new record add failed" << query.lastError();
}
}
} else {
// qDebug() << "check query failed" << checkQuery.lastError();
}
}
QMap<QString, QString> DbManager::getWeightRecord()
{
bool success = false;
QSqlQuery query("SELECT Date, Entry FROM journal ORDER BY Date;");
success = query.exec();
QMap<QString, QString> wtMap;
if (success) {
while (query.next()) {
int idName = query.record().indexOf("Entry");
QString entry = query.value(idName).toString();
if (entry.contains("weight", Qt::CaseInsensitive)) {
QRegularExpression regex("\\d{3}(\\.\\d{1})*");
QRegularExpressionMatchIterator i = regex.globalMatch(entry);
int idName = query.record().indexOf("Date");
QString date = query.value(idName).toString();
while (i.hasNext()) {
QRegularExpressionMatch match = i.next();
float myWt = match.captured(0).toFloat();
if (myWt < 200.0 && myWt > 140.0 ) {
wtMap[date] = match.captured(0);
break;
}
// // qDebug() << "Date:" << date << ": " << word;
}
}
}
}
return wtMap;
}