private void vSetupDB()
{
using (CConnection cc_connection = new CConnection())
{
cc_connection.vOpenConnection();
using (MySqlCommand command = new MySqlCommand())
{
string s_query = "CREATE DATABASE IF NOT EXISTS mojabazadanych;";
command.CommandText = s_query;
command.Connection = cc_connection.MySqlConnection;
try { command.ExecuteNonQuery(); }
catch (Exception ex) { MessageBox.Show(ex.ToString()); return; }
s_query = "USE mojabazadanych; CREATE TABLE IF NOT EXISTS pracownicy (PRACOWNICY_ID INT(11) NOT NULL AUTO_INCREMENT, NAME VARCHAR(30) NOT NULL, SURNAME VARCHAR(30) NOT NULL, CITY VARCHAR(30) NOT NULL, SEX VARCHAR(1) NOT NULL, PRIMARY KEY(PRACOWNICY_ID));";
command.CommandText = s_query;
try { command.ExecuteNonQuery(); }
catch (Exception ex) { MessageBox.Show(ex.ToString()); }
s_query = "CREATE TABLE IF NOT EXISTS users (USERS_ID INT(11) NOT NULL AUTO_INCREMENT, USERNAME VARCHAR(30) NOT NULL, PASS VARCHAR(30) NOT NULL, PRIMARY KEY(USERS_ID));";
command.CommandText = s_query;
try { command.ExecuteNonQuery(); }
catch (Exception ex) { MessageBox.Show(ex.ToString()); }
command.Dispose();
cc_connection.vCloseConection();
} //using(MySqlCommand mySqlCommand = new MySqlCommand(s_query, cc_connection.MySqlConnection))
} //using (CConnection cc_connection = new CConnection())
} //private void vSetupDB()
} //private void vSetupDB()
private void button1_Click(object sender, EventArgs e)
{
using (CConnection cc_connection = new CConnection())
{
using (MySqlDataReader results = null)
{
if (LogIn(textBox1.Text, textBox2.Text, cc_connection, results))
{
Hide();
Form form = new CMenu();
form.ShowDialog();
Close();
}
} //using (MySqlDataReader results = null)
}//using (CConnection cc_connection = new CConnection())
}
internal bool LogIn(string sUsername, string sPassword, CConnection ccConnection, MySqlDataReader results)
{
ccConnection.vOpenConnection();
string s_query = "USE mojabazadanych; SELECT * FROM users";
MySqlCommand command = new MySqlCommand(s_query, ccConnection.MySqlConnection);
try { results = command.ExecuteReader(); }
catch (Exception ex) { MessageBox.Show(ex.ToString()); }
if (!results.HasRows)
{
s_query = "INSERT INTO users (USERNAME, PASS) VALUES (\"Kamil\", \"Orkisz\")";
command.CommandText = s_query;
results.Dispose();
try { command.ExecuteNonQuery(); }
catch (Exception ex) { MessageBox.Show(ex.ToString()); }
s_query = "INSERT INTO users (USERNAME, PASS) VALUES (\"Radosław\", \"Wójtowicz\")";
command.CommandText = s_query;
try { command.ExecuteNonQuery(); }
catch (Exception ex) { MessageBox.Show(ex.ToString()); }
}
s_query = "USE mojabazadanych; SELECT * FROM users WHERE USERNAME = \'" + sUsername + "\' AND PASS = \'" + sPassword + "\';";
command.CommandText = s_query;
results.Dispose();
try { results = command.ExecuteReader(); }
catch (Exception ex) { MessageBox.Show(ex.ToString()); }
if (results != null)
{
if (results.HasRows)
{
short i_count = 0;
while (results.Read())
{
i_count++;
}
if (i_count > 1)
{
MessageBox.Show("Multiple instances of this username. Could not log in!");
return(false);
}
else
{
CUserInfo.vSetUser(results.GetInt32(0), results.GetString(1), results.GetString(2));
ccConnection.Dispose();
return(true);
}
}// if (results.HasRows)
else
{
MessageBox.Show("Wrong username or password. Try again!");
return(false);
}
}
return(false);
}//internal bool LogIn(string sUsername, string sPassword, CConnection ccConnection, MySqlDataReader results)
