public virtual void Prepare()
{
// strip out names from parameter markers
string text;
List <string> parameter_names = PrepareCommandText(out text);
// ask our connection to send the prepare command
MySqlField[] paramList = null;
statementId = Driver.PrepareStatement(text, ref paramList);
// now we need to assign our field names since we stripped them out
// for the prepare
for (int i = 0; i < parameter_names.Count; i++)
{
//paramList[i].ColumnName = (string) parameter_names[i];
string parameterName = (string)parameter_names[i];
MySqlParameter p = Parameters.GetParameterFlexible(parameterName, false);
if (p == null)
{
throw new InvalidOperationException(
String.Format(Resources.ParameterNotFoundDuringPrepare, parameterName));
}
p.Encoding = paramList[i].Encoding;
parametersToSend.Add(p);
}
// now prepare our null map
int numNullBytes = 0;
if (paramList != null && paramList.Length > 0)
{
#if RT || NETSTANDARD1_5
nullMap = new RtBitArray(paramList.Length);
#else
nullMap = new BitArray(paramList.Length);
#endif
numNullBytes = (nullMap.Count + 7) / 8;
}
packet = new MySqlPacket(Driver.Encoding);
// write out some values that do not change run to run
packet.WriteByte(0);
packet.WriteInteger(statementId, 4);
packet.WriteByte((byte)0); // flags; always 0 for 4.1
packet.WriteInteger(1, 4); // interation count; 1 for 4.1
nullMapPosition = packet.Position;
packet.Position += numNullBytes; // leave room for our null map
packet.WriteByte(1); // rebound flag
// write out the parameter types
foreach (MySqlParameter p in parametersToSend)
{
packet.WriteInteger(p.GetPSType(), 2);
}
dataPosition = packet.Position;
}
public CommandResult Execute(MySqlParameterCollection parameters)
{
PacketWriter packetWriter = new PacketWriter();
packetWriter.Driver = (NativeDriver)this.driver;
BitArray bitArray = new BitArray(parameters.Count);
for (int i = 0; i < this.paramList.Length; i++)
{
MySqlParameter mySqlParameter = parameters[this.paramList[i].ColumnName];
if (mySqlParameter.Value == DBNull.Value || mySqlParameter.Value == null)
{
bitArray[i] = true;
}
}
byte[] array = new byte[(parameters.Count + 7) / 8];
if (array.Length > 0)
{
bitArray.CopyTo(array, 0);
}
packetWriter.WriteInteger((long)this.StatementId, 4);
packetWriter.WriteByte(0);
packetWriter.WriteInteger(1L, 4);
packetWriter.Write(array);
packetWriter.WriteByte(1);
MySqlField[] array2 = this.paramList;
for (int j = 0; j < array2.Length; j++)
{
MySqlField mySqlField = array2[j];
MySqlParameter mySqlParameter2 = parameters[mySqlField.ColumnName];
packetWriter.WriteInteger((long)mySqlParameter2.GetPSType(), 2);
}
array2 = this.paramList;
for (int j = 0; j < array2.Length; j++)
{
MySqlField mySqlField2 = array2[j];
int num = parameters.IndexOf(mySqlField2.ColumnName);
if (num == -1)
{
throw new MySqlException("Parameter '" + mySqlField2.ColumnName + "' is not defined.");
}
MySqlParameter mySqlParameter3 = parameters[num];
if (mySqlParameter3.Value != DBNull.Value && mySqlParameter3.Value != null)
{
packetWriter.Encoding = mySqlField2.Encoding;
mySqlParameter3.Serialize(packetWriter, true);
}
}
this.executionCount++;
return(this.driver.ExecuteStatement(((MemoryStream)packetWriter.Stream).ToArray()));
}
public override void Execute()
{
// if we are not prepared, then call down to our base
if (!IsPrepared)
{
base.Execute();
return;
}
MySqlStream stream = new MySqlStream(Driver.Encoding);
//TODO: support long data here
// create our null bitmap
BitArray nullMap = new BitArray(Parameters.Count);
// now we run through the parameters that PREPARE sent back and use
// those names to index into the parameters the user gave us.
// if the user set that parameter to NULL, then we set the null map
// accordingly
if (paramList != null)
{
for (int x = 0; x < paramList.Length; x++)
{
MySqlParameter p = Parameters[paramList[x].ColumnName];
if (p.Value == DBNull.Value || p.Value == null)
{
nullMap[x] = true;
}
}
}
byte[] nullMapBytes = new byte[(Parameters.Count + 7) / 8];
// we check this because Mono doesn't ignore the case where nullMapBytes
// is zero length.
if (nullMapBytes.Length > 0)
{
nullMap.CopyTo(nullMapBytes, 0);
}
// start constructing our packet
stream.WriteInteger(statementId, 4);
stream.WriteByte(0); // flags; always 0 for 4.1
stream.WriteInteger(1, 4); // interation count; 1 for 4.1
stream.Write(nullMapBytes);
//if (parameters != null && parameters.Count > 0)
stream.WriteByte(1); // rebound flag
//else
// packet.WriteByte( 0 );
//TODO: only send rebound if parms change
// write out the parameter types
if (paramList != null)
{
foreach (MySqlField param in paramList)
{
MySqlParameter parm = Parameters[param.ColumnName];
stream.WriteInteger(parm.GetPSType(), 2);
}
// now write out all non-null values
foreach (MySqlField param in paramList)
{
int index = Parameters.IndexOf(param.ColumnName);
if (index == -1)
{
throw new MySqlException("Parameter '" + param.ColumnName +
"' is not defined.");
}
MySqlParameter parm = Parameters[index];
if (parm.Value == DBNull.Value || parm.Value == null)
{
continue;
}
stream.Encoding = param.Encoding;
parm.Serialize(stream, true);
}
}
executionCount++;
Driver.ExecuteStatement(stream.InternalBuffer.ToArray());
}
public CommandResult Execute(MySqlParameterCollection parameters)
{
PacketWriter packet = new PacketWriter();
packet.Driver = (NativeDriver)driver;
//TODO: support long data here
// create our null bitmap
BitArray nullMap = new BitArray(parameters.Count); //metaData.Length );
for (int x = 0; x < parameters.Count; x++)
{
if (parameters[x].Value == DBNull.Value ||
parameters[x].Value == null)
{
nullMap[x] = true;
}
}
byte[] nullMapBytes = new byte[(parameters.Count + 7) / 8];
nullMap.CopyTo(nullMapBytes, 0);
// start constructing our packet
packet.WriteInteger(StatementId, 4);
packet.WriteByte(0); // flags; always 0 for 4.1
packet.WriteInteger(1, 4); // interation count; 1 for 4.1
packet.Write(nullMapBytes);
//if (parameters != null && parameters.Count > 0)
packet.WriteByte(1); // rebound flag
//else
// packet.WriteByte( 0 );
//TODO: only send rebound if parms change
// write out the parameter types
foreach (MySqlField param in paramList)
{
MySqlParameter parm = parameters[param.ColumnName];
packet.WriteInteger((long)parm.GetPSType(), 2);
}
// now write out all non-null values
foreach (MySqlField param in paramList)
{
int index = parameters.IndexOf(param.ColumnName);
if (index == -1)
{
throw new MySqlException("Parameter '" + param.ColumnName +
"' is not defined.");
}
MySqlParameter parm = parameters[index];
if (parm.Value == DBNull.Value || parm.Value == null)
{
continue;
}
packet.Encoding = param.Encoding;
parm.Serialize(packet, true);
}
executionCount++;
// send the data packet and return the CommandResult
return(driver.ExecuteStatement(((System.IO.MemoryStream)packet.Stream).ToArray()));
}
