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user.go
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/
user.go
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package meta
import (
. "github.com/journeymidnight/yig/error"
"github.com/journeymidnight/yig/helper"
"github.com/journeymidnight/yig/redis"
)
const (
BUCKET_NUMBER_LIMIT = 100
)
func (m *Meta) GetUserBuckets(userId string, willNeed bool) (buckets []string, err error) {
getUserBuckets := func() (bs interface{}, err error) {
return m.Client.GetUserBuckets(userId)
}
unmarshaller := func(in []byte) (interface{}, error) {
buckets := make([]string, 0)
err := helper.MsgPackUnMarshal(in, &buckets)
return buckets, err
}
bs, err := m.Cache.Get(redis.UserTable, userId, getUserBuckets, unmarshaller, willNeed)
if err != nil {
return
}
buckets, ok := bs.([]string)
if !ok {
helper.Logger.Info("Cast bs failed:", bs)
err = ErrInternalError
return
}
return buckets, nil
}
func (m *Meta) AddBucketForUser(bucketName string, userId string) (err error) {
buckets, err := m.GetUserBuckets(userId, false)
if err != nil {
return err
}
if len(buckets)+1 > BUCKET_NUMBER_LIMIT {
return ErrTooManyBuckets
}
return m.Client.AddBucketForUser(bucketName, userId)
}
func (m *Meta) RemoveBucketForUser(bucketName string, userId string) (err error) {
return m.Client.RemoveBucketForUser(bucketName, userId)
}