public static void PatchLatestConfiguration(this TableOperations <MeterConfiguration> meterConfigurationTable, Meter meter, string configKey, string newConfigText) { RecordRestriction latestConfigurationQueryRestriction = new RecordRestriction("MeterID = {0}", meter.ID) & new RecordRestriction("ConfigKey = {0}", configKey) & new RecordRestriction("DiffID IS NULL"); MeterConfiguration latestConfiguration = meterConfigurationTable.QueryRecord("RevisionMajor DESC, RevisionMinor DESC", latestConfigurationQueryRestriction); if (latestConfiguration == null) { MeterConfiguration newConfiguration = new MeterConfiguration(); newConfiguration.MeterID = meter.ID; newConfiguration.ConfigKey = configKey; newConfiguration.ConfigText = newConfigText; newConfiguration.RevisionMajor = 0; newConfiguration.RevisionMinor = 0; meterConfigurationTable.AddNewRecord(newConfiguration); return; } meterConfigurationTable.Patch(latestConfiguration, newConfigText); }