Database class added

src/core/database.cpp

@@ -0,0 +1,24 @@
+#include "database.h"
+
+#include <stdexcept>
+
+Database::Database(const std::string& dbname) : db(nullptr)
+{
+    const int errCode = sqlite3_open(dbname.c_str(), &db);
+    if(errCode) {
+        throw std::runtime_error("Could not open database file.");
+    }
+}
+
+Database::~Database() 
+{
+    sqlite3_close(db);
+}
+
+void Database::exec(const std::string& sql)
+{
+    const int errCode = sqlite3_exec(db, sql.c_str(), nullptr, nullptr, nullptr);
+    if(errCode) {
+        throw std::runtime_error("Error in SQL execution.");
+    }
+}