Activity can't find WeatherConditions

[180909]

Activity can't find WeatherConditions

[muktihari]

@180909 Do you mean this? What manufacturer+devices produces WeatherConditions in their activity file?

fit/profile/filedef/activity.go

Lines 25 to 57 in d933f55

	type Activity struct {
	FileId mesgdef.FileId // required fields: type, manufacturer, product, serial_number, time_created
	// Developer Data Lookup
	DeveloperDataIds []*mesgdef.DeveloperDataId
	FieldDescriptions []*mesgdef.FieldDescription
	// Required Messages
	Activity *mesgdef.Activity // required fields: timestamp, num_sessions, type, event, event_type
	Sessions []*mesgdef.Session // required fields: timestamp, start_time, total_elapsed_time, sport, event, event_type
	Laps []*mesgdef.Lap // required fields: timestamp, event, event_type
	Records []*mesgdef.Record // required fields: timestamp
	// Optional Messages
	UserProfile *mesgdef.UserProfile
	DeviceInfos []*mesgdef.DeviceInfo // required fields: timestamp
	Events []*mesgdef.Event
	Lengths []*mesgdef.Length // required fields: timestamp, event, event_type
	SegmentLaps []*mesgdef.SegmentLap
	ZonesTargets []*mesgdef.ZonesTarget
	Workouts []*mesgdef.Workout
	WorkoutSteps []*mesgdef.WorkoutStep
	HRs []*mesgdef.Hr
	HRVs []*mesgdef.Hrv // required fields: time
	GpsMetadatas []*mesgdef.GpsMetadata
	TimeInZones []*mesgdef.TimeInZone
	Splits []*mesgdef.Split
	SplitSummaries []*mesgdef.SplitSummary // entries must be unique within each split_type
	Sports []*mesgdef.Sport
	// Messages not related to Activity
	UnrelatedMessages []proto.Message
	}

Actually, this library is composable, it means you can create your own struct and still be able to use this library. Because if we try to guess which messages should be added to filedef.Activity, it will be plenty to choose, different manufacturer may use different messages.

Please see this guide on how to define your own custom file type: https://github.com/muktihari/fit/blob/master/docs/usage.md#using-your-own-custom-file-types

Alternatively, you can embed existing filedef.Activity to your defined struct and add WeatherConditions if you want it that way, choose what works for you:

// Activity is an user-defined activity file.
type Activity struct {
	filedef.Activity  // <- Struct-embedding, so we can use its fields as our own.
	WeatherConditions []*mesgdef.WeatherConditions
}

func (a *Activity) Add(mesg proto.Message) {
	switch mesg.Num {
	case mesgnum.WeatherConditions:
		a.WeatherConditions = append(a.WeatherConditions, mesgdef.NewWeatherConditions(&mesg))
	default:
		a.Activity.Add(mesg) // Pass the other messages to filedef.Activity
	}
}

func (a *Activity) ToFIT(options *mesgdef.Options) proto.FIT {
	for _, v := range a.WeatherConditions {
		a.Activity.Add(v.ToMesg(options)) // <- Put messages to (filedef.Activity).UnrelatedMessages
	}
	return a.Activity.ToFIT(options) // <- Let filedef.Activity to convert all messages into proto.FIT
}

I hope it help, thanks.