initial commit

database.cpp

@@ -0,0 +1,50 @@
+#include "database.h"
+
+#include <iostream>
+#include <cstring>
+#include <QVariant>
+
+using std::vector;
+
+DataBase::DataBase()
+{
+    this->db = new QSqlDatabase();
+    *this->db = QSqlDatabase::addDatabase("QSQLITE");
+    this->db->setDatabaseName("Renndatenbank.sqlite");
+    std::cout << "Konstruktor Database" << std::endl;
+}
+
+vector< vector<QString> > DataBase::getData(std::string statement, int cols){
+
+    char * buffer = new char[statement.length()-1];
+    strcpy(buffer,statement.c_str());
+    vector<QString> data;
+    vector< vector<QString> > lines;
+    bool ok = this->db->open();
+    QString qstr;
+    if(ok){
+        QSqlQuery query(buffer);
+
+        while(query.next()){
+
+            for(int i = 0; i < cols; i++){
+                qstr = query.value(i).toString();
+                data.push_back(qstr);
+            }
+            lines.push_back(data);
+            data.erase(data.begin(), data.begin()+cols);
+        }
+    }
+    this->db->close();
+    return lines;
+}
+
+void DataBase::setData(std::string statement){
+    char * buffer = new char[statement.length()];
+    strcpy(buffer,statement.c_str());
+    bool ok = this->db->open();
+    if(ok){
+        QSqlQuery query(buffer);
+    }
+    this->db->close();
+}