fix: add postgres backend

changes:
- Add postgres backend
- Modified or added table attributes.
  UpdateDate, ForeignKeys, Booleans
- Fix test for sqlite and postgres. Compare json instead the struct.

pkg/repository/db/sqlite.go

@@ -97,7 +97,7 @@ func (sqlite *SQLite) InsertDevices(ctx context.Context, devices ...*types.Devic
 	defer stmt.Close()
 
 	for _, device := range devices {
-		_, err = stmt.Exec(&device.ID, &device.Name, &device.Location, &device.CreationDate)
+		_, err = stmt.Exec(&device.ID, &device.Name, &device.Location, &device.CreationDate, &device.UpdateDate)
 		if err != nil {
 			tx.Rollback()
 			return fmt.Errorf("Failed to execute statement: %v", err)
@@ -140,8 +140,8 @@ func (sqlite *SQLite) InsertMeasuredValues(ctx context.Context, measuredValues .
 			_, err := stmt.Exec(
 				&measuredValue.ID,
 				&measuredValue.Value,
-				&measuredValue.SensorID,
 				&measuredValue.Date,
+				&measuredValue.SensorID,
 				&measuredValue.CreationDate,
 				&measuredValue.UpdateDate,
 			)
@@ -212,6 +212,7 @@ func (sqlite *SQLite) InsertSensors(ctx context.Context, sensors ...*types.Senso
 			&sensor.TickDuration,
 			&sensor.DeviceID,
 			&sensor.CreationDate,
+			&sensor.UpdateDate,
 		)
 		if err != nil {
 			tx.Rollback()
@@ -315,6 +316,7 @@ func (sqlite *SQLite) selectDevices(tx *sql.Tx, query string, args ...interface{
 			&device.Name,
 			&device.Location,
 			&device.CreationDate,
+			&device.UpdateDate,
 		)
 		if err != nil {
 			return nil, fmt.Errorf("Failed to scan row: %v", err)
@@ -574,6 +576,7 @@ func (sqlite *SQLite) selectSensors(tx *sql.Tx, query string, args ...interface{
 			&sensor.TickDuration,
 			&sensor.DeviceID,
 			&sensor.CreationDate,
+			&sensor.UpdateDate,
 		)
 
 		if err != nil {
@@ -674,6 +677,7 @@ func (sqlite *SQLite) UpdateDevices(ctx context.Context, devices ...*types.Devic
 			&device.Name,
 			&device.Location,
 			&device.CreationDate,
+			&device.UpdateDate,
 			&device.ID,
 		)
 		if err != nil {
@@ -718,6 +722,7 @@ func (sqlite *SQLite) UpdateSensors(ctx context.Context, sensors ...*types.Senso
 			&sensor.TickDuration,
 			&sensor.DeviceID,
 			&sensor.CreationDate,
+			&sensor.UpdateDate,
 			&sensor.ID,
 		)
 		if err != nil {