79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
#include "database.h"
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#include <QVariant>
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#include <cstring>
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#include <iostream>
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using std::vector;
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DataBase::DataBase() {
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this->db = new QSqlDatabase();
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*this->db = QSqlDatabase::addDatabase("QSQLITE");
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this->db->setDatabaseName("Renndatenbank.sqlite");
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// std::cout << "Konstruktor Database" << std::endl;
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}
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DataBase::~DataBase() {
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// std::cout << "Destruktor aus Datenbank" << std::endl;
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delete this->db;
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// delete this;
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}
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vector<vector<QString>> DataBase::getData2(std::string statement, int cols) {
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vector<QString> data;
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vector<vector<QString>> lines;
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bool ok = this->db->open();
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QString qstr;
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if (ok) {
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QSqlQuery query;
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query.exec(QString::fromStdString(statement));
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while (query.next()) {
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for (int i = 0; i < cols; i++) {
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qstr = query.value(i).toString();
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data.push_back(qstr);
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}
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lines.push_back(data);
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data.erase(data.begin(), data.begin() + cols);
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}
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}
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this->db->close();
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return lines;
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}
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vector<vector<QString>> DataBase::getData(std::string statement, int cols) {
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char * buffer = new char[statement.length() + 1];
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strcpy(buffer, statement.c_str());
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vector<QString> data;
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vector<vector<QString>> lines;
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bool ok = this->db->open();
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QString qstr;
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if (ok) {
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QSqlQuery query(buffer);
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while (query.next()) {
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for (int i = 0; i < cols; i++) {
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qstr = query.value(i).toString();
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data.push_back(qstr);
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}
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lines.push_back(data);
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data.erase(data.begin(), data.begin() + cols);
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}
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}
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this->db->close();
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delete[] buffer;
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return lines;
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}
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void DataBase::setData(std::string statement) {
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char * buffer = new char[statement.length() + 1];
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strcpy(buffer, statement.c_str());
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bool ok = this->db->open();
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if (ok) {
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QSqlQuery query(buffer);
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}
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this->db->close();
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}
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