/// <summary>
/// Executes the specified query.
/// </summary>
/// <param name="query">The query.</param>
/// <param name="store">Whether or not to download the result set.</param>
/// <returns></returns>
/// <exception cref="System.Exception"></exception>
public MySqlResult Query(string query, bool store = true)
{
// list
List <MySqlResult> results = new List <MySqlResult>();
// query
MySqlNative.mysql_real_query(handle, query, (uint)query.Length);
// check error
if (Error)
{
throw new InvalidOperationException(ErrorString);
}
Application.Logger.Log(Logging.LogLevel.Information, "mysql", query);
while (true)
{
if (store)
{
results.Add(new MySqlResult(MySqlNative.mysql_store_result(handle)));
}
else
{
results.Add(new MySqlResult(MySqlNative.mysql_store_result(handle)));
}
break;
}
// exit
return(results[0]);
}
/// <summary>
/// Creates a row by fetching it from a result set.
/// </summary>
/// <param name="result">The result.</param>
/// <returns></returns>
internal static MySqlRow FetchFromResult(MySqlResult result)
{
// fetch data
IntPtr valueArr = MySqlNative.mysql_fetch_row(result.Handle);
if (valueArr == IntPtr.Zero)
{
return(null);
}
IntPtr lengthArr = MySqlNative.mysql_fetch_lengths(result.Handle);
int numFields = (int)MySqlNative.mysql_num_fields(result.Handle);
// create row
MySqlRow row = new MySqlRow();
row.result = result;
row.values = new object[numFields];
// lengths
long[] length = new long[numFields];
Marshal.Copy(lengthArr, length, 0, numFields);
// values
IntPtr[] valuePtrs = new IntPtr[numFields];
Marshal.Copy(valueArr, valuePtrs, 0, numFields);
for (int i = 0; i < numFields; i++)
{
row.values[i] = result.Fields[i].CastFrom(Marshal.PtrToStringAnsi(valuePtrs[i]));
}
return(row);
}
/// <summary>
/// Escapes the specified string, removing injection attempts.
/// </summary>
/// <param name="str">The query string.</param>
/// <returns></returns>
public string Escape(string str)
{
// output
IntPtr to = Marshal.AllocHGlobal((str.Length * 2) + 1);
// escape
MySqlNative.mysql_real_escape_string(handle, to, str, (uint)str.Length);
// convert
string outStr = Marshal.PtrToStringAnsi(to);
// free output
Marshal.FreeHGlobal(to);
return(outStr);
}
/// <summary>
/// Fetches the fields for the result set.
/// </summary>
private void FetchFields()
{
// fetch fields
IntPtr fieldsArr = MySqlNative.mysql_fetch_fields(handle);
int numFields = (int)MySqlNative.mysql_num_fields(handle);
// create
fields = new MySqlField[numFields];
// fields
for (int i = 0; i < numFields; i++)
{
// get field
MySqlField.Field field = (MySqlField.Field)Marshal.PtrToStructure(fieldsArr + (i * Marshal.SizeOf(typeof(MySqlField.Field))), typeof(MySqlField.Field));
// add
fields[i] = new MySqlField(field);
}
}
public override void Connect(string host, string username, string password, string db, uint port)
{
MySqlNative.mysql_real_connect(handle, host, username, password, db, port, IntPtr.Zero, 0);
}
/// <summary>
/// Initializes a new instance of the <see cref="MySqlConnector"/> class.
/// </summary>
public MySqlConnector()
{
this.handle = MySqlNative.mysql_init(IntPtr.Zero);
}
/// <summary>
/// Disconnects from the MySql server.
/// </summary>
public override void Disconnect()
{
MySqlNative.mysql_close(handle);
}
