static public OleDbCommand BuildDynamicInsertCommand(esDataRequest request, esEntitySavePacket packet)
{
string sql = String.Empty;
string defaults = String.Empty;
string into = String.Empty;
string values = String.Empty;
string comma = String.Empty;
string defaultComma = String.Empty;
string where = String.Empty;
string whereComma = String.Empty;
PropertyCollection props = new PropertyCollection();
OleDbParameter p = null;
Dictionary <string, OleDbParameter> types = Cache.GetParameters(request);
OleDbCommand cmd = new OleDbCommand();
if (request.CommandTimeout != null)
{
cmd.CommandTimeout = request.CommandTimeout.Value;
}
esColumnMetadataCollection cols = request.Columns;
foreach (esColumnMetadata col in cols)
{
bool isModified = packet.ModifiedColumns == null ? false : packet.ModifiedColumns.Contains(col.Name);
if (isModified && (!col.IsAutoIncrement && !col.IsConcurrency && !col.IsEntitySpacesConcurrency))
{
p = cmd.Parameters.Add(CloneParameter(types[col.Name]));
into += comma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
values += comma + p.ParameterName;
comma = ", ";
}
else if (col.IsAutoIncrement)
{
props["AutoInc"] = col.Name;
props["Source"] = request.ProviderMetadata.Source;
}
else if (col.IsConcurrency)
{
props["Timestamp"] = col.Name;
props["Source"] = request.ProviderMetadata.Source;
}
else if (col.IsEntitySpacesConcurrency)
{
props["EntitySpacesConcurrency"] = col.Name;
into += comma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
values += comma + "1";
comma = ", ";
p = CloneParameter(types[col.Name]);
p.Value = 1;
cmd.Parameters.Add(p);
}
else if (col.IsComputed)
{
// Do nothing but leave this here
}
else if (cols.IsSpecialColumn(col))
{
// Do nothing but leave this here
}
else if (col.HasDefault)
{
defaults += defaultComma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
defaultComma = ",";
}
if (col.IsInPrimaryKey)
{
where += whereComma + col.Name;
whereComma = ",";
}
}
#region Special Columns
if (cols.DateAdded != null && cols.DateAdded.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.DateAdded.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["DateAdded.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.DateAdded.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
if (cols.DateModified != null && cols.DateModified.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["DateModified.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
if (cols.AddedBy != null && cols.AddedBy.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.AddedBy.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["AddedBy.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.AddedBy.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
if (cols.ModifiedBy != null && cols.ModifiedBy.IsServerSide)
{
into += comma + Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose;
values += comma + request.ProviderMetadata["ModifiedBy.ServerSideText"];
comma = ", ";
defaults += defaultComma + Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose;
defaultComma = ",";
}
#endregion
if (defaults.Length > 0)
{
comma = String.Empty;
props["Defaults"] = defaults;
props["Where"] = where;
}
sql += "INSERT INTO " + CreateFullName(request);
if (into.Length != 0)
{
sql += "(" + into + ") VALUES (" + values + ")";
}
else
{
sql += "DEFAULT VALUES";
}
request.Properties = props;
cmd.CommandText = sql;
cmd.CommandType = CommandType.Text;
return(cmd);
}
static public OleDbCommand BuildDynamicUpdateCommand(esDataRequest request, esEntitySavePacket packet)
{
string where = String.Empty;
string scomma = String.Empty;
string wcomma = String.Empty;
string defaults = String.Empty;
string defaultsWhere = String.Empty;
string defaultsComma = String.Empty;
string defaultsWhereComma = String.Empty;
List <OleDbParameter> whereParams = new List <OleDbParameter>();
string sql = "UPDATE " + CreateFullName(request) + " SET ";
PropertyCollection props = new PropertyCollection();
OleDbParameter p = null;
Dictionary <string, OleDbParameter> types = Cache.GetParameters(request);
OleDbCommand cmd = new OleDbCommand();
if (request.CommandTimeout != null)
{
cmd.CommandTimeout = request.CommandTimeout.Value;
}
esColumnMetadataCollection cols = request.Columns;
foreach (esColumnMetadata col in cols)
{
bool isModified = packet.ModifiedColumns == null ? false : packet.ModifiedColumns.Contains(col.Name);
if (isModified && (!col.IsAutoIncrement && !col.IsConcurrency && !col.IsEntitySpacesConcurrency))
{
p = cmd.Parameters.Add(CloneParameter(types[col.Name]));
sql += scomma;
sql += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
scomma = ", ";
}
else if (col.IsAutoIncrement)
{
// Nothing to do but leave this here
}
else if (col.IsConcurrency)
{
p = CloneParameter(types[col.Name]);
p.SourceVersion = DataRowVersion.Original;
whereParams.Add(p);
//cmd.Parameters.Add(p);
where += wcomma;
where += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
wcomma = " AND ";
}
else if (col.IsEntitySpacesConcurrency)
{
props["EntitySpacesConcurrency"] = col.Name;
p = CloneParameter(types[col.Name]);
p.SourceVersion = DataRowVersion.Original;
whereParams.Add(p);
//cmd.Parameters.Add(p);
sql += scomma;
sql += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " + 1";
scomma = ", ";
where += wcomma;
where += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
wcomma = " AND ";
}
else if (col.IsComputed)
{
// Do nothing but leave this here
}
else if (cols.IsSpecialColumn(col))
{
// Do nothing but leave this here
}
else if (col.HasDefault)
{
// defaults += defaultsComma + Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose;
// defaultsComma = ",";
}
if (col.IsInPrimaryKey)
{
p = CloneParameter(types[col.Name]);
p.SourceVersion = DataRowVersion.Original;
whereParams.Add(p);
//cmd.Parameters.Add(p);
where += wcomma;
where += Delimiters.ColumnOpen + col.Name + Delimiters.ColumnClose + " = " + p.ParameterName;
wcomma = " AND ";
defaultsWhere += defaultsWhereComma + col.Name;
defaultsWhereComma = ",";
}
}
#region Special Columns
if (cols.DateModified != null && cols.DateModified.IsServerSide)
{
sql += scomma;
sql += Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose + " = " + request.ProviderMetadata["DateModified.ServerSideText"];
scomma = ", ";
defaults += defaultsComma + Delimiters.ColumnOpen + cols.DateModified.ColumnName + Delimiters.ColumnClose;
defaultsComma = ",";
}
if (cols.ModifiedBy != null && cols.ModifiedBy.IsServerSide)
{
sql += scomma;
sql += Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose + " = " + request.ProviderMetadata["ModifiedBy.ServerSideText"];
scomma = ", ";
defaults += defaultsComma + Delimiters.ColumnOpen + cols.ModifiedBy.ColumnName + Delimiters.ColumnClose;
defaultsComma = ",";
}
#endregion
if (defaults.Length > 0)
{
props["Defaults"] = defaults;
props["Where"] = defaultsWhere;
}
if (whereParams.Count > 0)
{
foreach (OleDbParameter parm in whereParams)
{
cmd.Parameters.Add(parm);
}
}
sql += " WHERE (" + where + ")";
request.Properties = props;
cmd.CommandText = sql;
cmd.CommandType = CommandType.Text;
return(cmd);
}
