Hvorfor virker den her std::map ikke ?

Jeg har den std map til at gemme brugere online, men den smider ingen data i den.

min LoginMap.h fil:

#define WIN32_LEAN_AND_MEAN

// disable map warnings for std::map
#pragma warning (disable: 4786)
#pragma warning (disable: 4788)

#include <windows.h>
#include <string>
#include <memory.h>
#include <map>
#include "Types.h"

using namespace std;

struct usersonline
{
    int accountid;
    string username;
};

class LoginMap
{
private:
    map<unsigned int,struct usersonline> m;
    struct usersonline uo;

public:
    //************************
    // std::map remove a map
    //************************
    void removeMap(unsigned int keyid)
    {
        m.erase(keyid);
    }
    //************************
    // std::map setters / getters
    //************************
    //** Account ID **
    void setAccountid(unsigned int key, int accountid)
    {
        map<unsigned int,struct usersonline>::iterator it = m.find(key);
        if(it != m.end())
            it->second.accountid = accountid;
        else
        {
            uo.accountid = accountid;
            m.insert(make_pair(key, uo));
        }
    }
    //** Account ID **
    int getAccountid(unsigned int key)
    {
        int accountid = m[key].accountid;
        return accountid;
    }
  //** User name **
    void setUsername(unsigned int key, string username)
    {
        map<unsigned int,struct usersonline>::iterator it = m.find(key);
        if(it != m.end())
            it->second.username = username;
        else
        {
            uo.username = username;
            m.insert(make_pair(key, uo));
        }
    }
    //** User name **
    string getUsername(unsigned int key)
    {
        string username = m[key].username;
        return username;
    }
};

min database check fil:

int database::checklogin(DWORD ptr, char * username, char * password)
{
    CConnection* c = reinterpret_cast <CConnection*> (ptr);
    char            cip[15];
    unsigned int    cp = 0;
    c->PeerInfo (&cip[0], 15, &cp);

    unsigned int num_rows;

    char* query = new char[100];
    sprintf(query,"SELECT * FROM account WHERE name='%s' && password='%s'", username, password);
   
    if(mysql_query(pConn,query))
    {
        // error doing the query
        Log2File(TRUE, "(MySQL) ERROR : %s\n", mysql_error(pConn));
        return 0;
    }
    else
    {
        result = mysql_store_result(pConn);
        // fetch all the rows from the query.
        num_rows = mysql_num_rows(result);
        row = mysql_fetch_row(result);

        // the username and password match, return accountid
        if(num_rows >= 1)
        {
            int accountid = (int)atoi((char *)row[0]);

            dblmap.setAccountid(cp, accountid);
            dblmap.setUsername(cp, (string)row[1]);

            mysql_free_result(result);
            return 1;
        }

        // no such username
        else if(num_rows == 0)
        {
            mysql_free_result(result);
            return 0;
        }
        mysql_free_result(result);
    }
    return 0;
}

den henter data'en ud ok, men gemmer den ikke i mappen, nogen der kan se fejlen ?