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
})
}
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
}