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); }