Golang Result.Skills Examples

Example #1

File: logic.go Project: pbochis/api

func init() {
	RegisterResulter(Average, func(ctx context.Context, resultKey *datastore.Key) error {
		var result model.Result
		if err := datastore.Get(ctx, resultKey, &result); err != nil {
			return err
		}

		var challenge model.Challenge
		if err := datastore.Get(ctx, result.Challenge, &challenge); err != nil {
			return err
		}

		var tasks model.Tasks
		if err := datastore.GetMulti(ctx, challenge.Tasks, &tasks); err != nil {
			return err
		}

		weightSum := model.Skills{} // this could be SkillWeights, but would need more conversions
		average := model.Skills{}

		for i, task := range tasks {
			taskResult, err := Tasker(task.Tasker).Call(ctx, challenge.Tasks[i], resultKey.Parent().Parent())
			if err != nil {
				return err
			}
			average = average.Add(taskResult.Mul(model.Skills(task.SkillWeights)))
			weightSum = weightSum.Add(model.Skills(task.SkillWeights))
		}

		result.Skills = average.Div(weightSum)
		result.Computed = time.Now()

		_, err := result.Put(ctx, resultKey)
		return err
	})
}