public void AddCommandParameter(EPField p, EnumParameterStyle style)
{
DbParameter pam = cmd.CreateParameter();
pam.ParameterName = p.GetParameterNameForCommand(style);
pam.DbType = ValueConvertor.OleDbTypeToDbType(p.OleDbType);
pam.Size = p.DataSize;
pam.Value = p.Value;
cmd.Parameters.Add(pam);
}
public void AddDateParam(string name, System.DateTime dt)
{
DbParameter pam = cmd.CreateParameter();
pam.ParameterName = name;
pam.Size = 8;
pam.DbType = ValueConvertor.OleDbTypeToDbType(System.Data.OleDb.OleDbType.DBTimeStamp);
pam.Value = dt;
cmd.Parameters.Add(pam);
}
public void MakeCommand(string table, FieldList rowID, Connection cn)
{
if (fields.Count > 0)
{
int i;
rowIDFields = rowID;
//================================
cmdUpdates = new DbCommand[fields.Count];
for (int k = 0; k < fields.Count; k++)
{
cmdUpdates[k] = cn.CreateCommand();
StringBuilder sSQL = new StringBuilder();
sSQL.Append(QueryParser.SQL_Update());
sSQL.Append(DatabaseEditUtil.SepBegin(cn.NameDelimiterStyle));
sSQL.Append(table);
sSQL.Append(DatabaseEditUtil.SepEnd(cn.NameDelimiterStyle));
sSQL.Append(QueryParser.SQL_Set());
sSQL.Append(DatabaseEditUtil.SepBegin(cn.NameDelimiterStyle));
sSQL.Append(fields[k].Name);
sSQL.Append(DatabaseEditUtil.SepEnd(cn.NameDelimiterStyle));
sSQL.Append("=?");
sSQL.Append(QueryParser.SQL_Where());
sSQL.Append(DatabaseEditUtil.SepBegin(cn.NameDelimiterStyle));
sSQL.Append(rowIDFields[0].Name);
sSQL.Append(DatabaseEditUtil.SepEnd(cn.NameDelimiterStyle));
sSQL.Append("=? ");
for (i = 1; i < rowIDFields.Count; i++)
{
sSQL.Append(QueryParser.SQL_And());
sSQL.Append(DatabaseEditUtil.SepBegin(cn.NameDelimiterStyle));
sSQL.Append(rowIDFields[i].Name);
sSQL.Append(DatabaseEditUtil.SepEnd(cn.NameDelimiterStyle));
sSQL.Append("=?");
}
cmdUpdates[k].CommandText = sSQL.ToString();
DbParameter pam = cmdUpdates[k].CreateParameter();
pam.ParameterName = fields[k].Name;
pam.DbType = ValueConvertor.OleDbTypeToDbType(fields[k].OleDbType);
pam.Size = fields[k].DataSize;
pam.SourceColumn = fields[k].Name;
cmdUpdates[k].Parameters.Add(pam);
for (i = 0; i < rowIDFields.Count; i++)
{
pam = cmdUpdates[k].CreateParameter();
pam.ParameterName = rowIDFields[i].Name;
pam.DbType = ValueConvertor.OleDbTypeToDbType(rowIDFields[i].OleDbType);
pam.Size = rowIDFields[i].DataSize;
pam.SourceColumn = rowIDFields[i].Name;
cmdUpdates[k].Parameters.Add(pam);
}
}
}
}
public virtual string Execute()
{
string sMsg = string.Empty;
SetError(sMsg);
_affectedRows = 0;
if (_sql != null && connect != null)
{
DbCommand cmd = connect.ConnectionObject.CreateCommand();
if (_transaction != null)
{
cmd.Transaction = _transaction;
}
bool bClosed = !connect.ConnectionObject.Opened;
if (bClosed)
{
connect.ConnectionObject.Open();
}
if (connect.ConnectionObject.Opened)
{
try
{
int i;
EnumParameterStyle pstyle = connect.ParameterStyle;
FieldList pmMap = new FieldList();
string s;
int nCount;
s = _sql.GetSQLStatement(pmMap, pstyle);
if (pstyle == EnumParameterStyle.QuestionMark)
{
nCount = pmMap.Count;
}
else
{
nCount = _sql.ParamCount;
}
connect.Log("Command:{0}, params:{1}", s, nCount);
cmd.CommandText = s;
cmd.CommandType = CommandType.Text;
for (i = 0; i < nCount; i++)
{
DbParameter pam = cmd.CreateParameter();
EPField f;
if (pstyle == EnumParameterStyle.QuestionMark)
{
f = pmMap[i];
pam.ParameterName = "@P" + i.ToString();
}
else
{
f = _sql.Parameters[i];
pam.ParameterName = ParameterList.GetParameterName(pstyle, _sql.Parameters[i].Name);
}
pam.DbType = ValueConvertor.OleDbTypeToDbType(f.OleDbType);
pam.Size = f.DataSize;
OleDbParameter op = pam as OleDbParameter;
if (op != null && f.OleDbType == OleDbType.DBTimeStamp)
{
if (f.Value != null && f.Value != DBNull.Value)
{
DateTime dt = (DateTime)(f.Value);
dt = new DateTime(dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second);
f.SetValue(dt);
}
}
connect.Log("param{0}:{1},{2},{3}. Value type:{4}. Value:{5}", i, pam.ParameterName, pam.DbType, pam.Size, f.OleDbType, f.Value);
if (EPField.IsDatetime(f.OleDbType))
{
if (f.IsNullOrEmpty)
{
pam.Value = System.DBNull.Value;
}
else
{
object dt0 = ValueConvertor.ConvertByOleDbType(f.Value, f.OleDbType);
try
{
DateTime dt = (DateTime)dt0;
if (dt.Ticks == 0)
{
pam.Value = System.DBNull.Value;
}
else
{
pam.Value = dt;
}
}
catch
{
pam.Value = dt0;
}
}
}
else
{
pam.Value = ValueConvertor.ConvertByOleDbType(f.Value, f.OleDbType);
}
cmd.Parameters.Add(pam);
}
_affectedRows = cmd.ExecuteNonQuery();
connect.Log("Affected rows:{0}", _affectedRows);
if (bClosed)
{
closeConnections();
}
if (this.ExecuteFinish != null)
{
ExecuteFinish(this, EventArgs.Empty);
}
if (_webPage != null && !string.IsNullOrEmpty(_name))
{
_webPage.SetServerComponentName(_name);
}
}
catch (Exception er)
{
if (_transaction != null)
{
_transaction.Rollback();
_transaction.Dispose();
_transaction = null;
connect.Log("rollback with error {0}", er.Message);
throw;
}
else
{
sMsg = ExceptionLimnorDatabase.FormExceptionText(er);
}
}
finally
{
if (bClosed)
{
if (connect.ConnectionObject.State != ConnectionState.Closed)
{
connect.ConnectionObject.Close();
}
}
}
}
else
{
sMsg = "Database connection not set";
}
}
else
{
sMsg = "SQL statement not set";
}
if (!string.IsNullOrEmpty(sMsg))
{
SetError(sMsg);
if (connect != null)
{
connect.Log("Error executing EasyUpdator.Execute. {0}", sMsg);
}
}
return(sMsg);
}
public override string Execute()
{
string sMsg = string.Empty;
SetError(sMsg);
ResetAffectedRows();
SQLNoneQuery sql = base.ExecutionCommand;
ConnectionItem connect = Connection;
DbTransaction transaction = Transaction;
if (sql != null && connect != null)
{
DbCommand cmd = connect.ConnectionObject.CreateCommand();
if (transaction != null)
{
cmd.Transaction = transaction;
}
bool bClosed = !connect.ConnectionObject.Opened;
if (bClosed)
{
connect.ConnectionObject.Open();
}
if (connect.ConnectionObject.Opened)
{
try
{
int i;
EnumParameterStyle pstyle = connect.ParameterStyle;
cmd.CommandText = sql.SQL;
if (sql.CommandType == enmNonQueryType.StoredProcedure)
{
cmd.CommandType = CommandType.StoredProcedure;
}
else
{
cmd.CommandType = CommandType.Text;
}
int nCount = ParameterCount;
for (i = 0; i < nCount; i++)
{
DbParameter pam = cmd.CreateParameter();
if (pstyle == EnumParameterStyle.LeadingQuestionMark)
{
if (sql.Param_Name[i].StartsWith("@", StringComparison.OrdinalIgnoreCase))
{
pam.ParameterName = string.Format(CultureInfo.InvariantCulture, "?{0}", sql.Param_Name[i].Substring(1));
}
else if (sql.Param_Name[i].StartsWith("?", StringComparison.OrdinalIgnoreCase))
{
pam.ParameterName = sql.Param_Name[i];
}
else
{
pam.ParameterName = string.Format(CultureInfo.InvariantCulture, "?{0}", sql.Param_Name[i]);
}
}
else
{
if (sql.Param_Name[i].StartsWith("@", StringComparison.OrdinalIgnoreCase))
{
pam.ParameterName = sql.Param_Name[i];
}
else
{
pam.ParameterName = string.Format(CultureInfo.InvariantCulture, "@{0}", sql.Param_Name[i]);
}
}
pam.DbType = ValueConvertor.OleDbTypeToDbType(sql.Param_OleDbType[i]);
pam.Direction = this.Param_Directions[i];
pam.Size = EPField.FieldDataSize(sql.Param_OleDbType[i], this.Param_DataSize[i]);
pam.Value = ValueConvertor.ConvertByOleDbType(sql.Parameters[i].Value, sql.Param_OleDbType[i]);
cmd.Parameters.Add(pam);
}
cmd.Prepare();
DbDataReader dr = cmd.ExecuteReader();
_dataset = new DataSet("Results");
int n = 1;
while (true)
{
DataTable tbl = new DataTable(string.Format("Table{0}", n));
for (i = 0; i < dr.FieldCount; i++)
{
DataColumn dc = new DataColumn(dr.GetName(i), dr.GetFieldType(i));
tbl.Columns.Add(dc);
}
_dataset.Tables.Add(tbl);
while (dr.Read())
{
object[] vs = new object[dr.FieldCount];
for (int k = 0; k < dr.FieldCount; k++)
{
vs[k] = dr.GetValue(k);
}
tbl.Rows.Add(vs);
}
n++;
if (!dr.NextResult())
{
break;
}
}
dr.Close();
if (bClosed)
{
closeConnections();
}
for (i = 0; i < nCount; i++)
{
ParameterDirection pt = cmd.Parameters[i].Direction;
if (pt != ParameterDirection.Input)
{
sql.Parameters[i].Value = cmd.Parameters[i].Value;
}
}
FireExecuteFinish();
}
catch (Exception er)
{
if (transaction != null)
{
transaction.Rollback();
transaction.Dispose();
ResetTransaction();
throw;
}
else
{
sMsg = ExceptionLimnorDatabase.FormExceptionText(er);
}
}
finally
{
if (bClosed)
{
if (connect.ConnectionObject.State != ConnectionState.Closed)
{
connect.ConnectionObject.Close();
}
}
}
}
else
{
sMsg = "Database connection not set";
}
}
else
{
sMsg = "SQL statement not set";
}
if (!string.IsNullOrEmpty(sMsg))
{
SetError(sMsg);
}
return(sMsg);
}
