Пример #1
0
func instrumentsFromDB(b *bolt.Bucket) {
	instruments = make([]Instrument, b.Stats().KeyN)
	i := 0
	b.ForEach(func(k, v []byte) error {
		var inst Instrument
		buf := bytes.NewBuffer(v)
		dec := gob.NewDecoder(buf)
		err := dec.Decode(&inst)
		if err != nil {
			return err
		}
		instruments[inst.ID] = inst
		i++
		return err
	})
}
Пример #2
0
func GetImgs() ([]img.Img, error) {
	var rawImg [][]byte
	var Imgs []img.Img
	var b *bolt.Bucket

	err := DB.Update(func(tx *bolt.Tx) error {
		var err error
		b, err = tx.CreateBucketIfNotExists([]byte("images"))
		if err != nil {
			return err
		}

		stats := b.Stats()

		if stats.KeyN > 0 {
			for i := 1; i <= stats.KeyN; i++ {
				x := b.Get([]byte(strconv.FormatInt(int64(i), 10)))
				rawImg = append(rawImg, x)
			}
		}
		return nil
	})
	if err != nil {
		return Imgs, err
	}

	for _, d := range rawImg {
		var iimg img.Img
		err := json.Unmarshal(d, &iimg)
		if err != nil {
			panic(err)
			return Imgs, err
		}
		Imgs = append(Imgs, iimg)
	}

	return Imgs, nil
}
func numKeys(bucket *bolt.Bucket) int {
	stats := bucket.Stats()
	return stats.KeyN
}