func (db *DB) ObjectDocDel(fold, key string) *skv.Reply {
var (
rpl = skv.NewReply("")
opath = skv.NewObjectPathKey(fold, key)
bkey = opath.EntryIndex()
prevobj *skv.Object
previdx = map[uint8]skv.ObjectDocSchemaIndexEntryBytes{}
)
if rs := db.RawGet(bkey); rs.Status == skv.ReplyNotFound {
return rpl
} else if rs.Status != skv.ReplyOK {
return rs
} else {
prevobj = rs.Object()
var prev map[string]interface{}
if err := prevobj.Data.JsonDecode(&prev); err == nil {
previdx = skv.ObjectDocIndexDataExport(_obj_doc_indexes, opath.Fold, prev)
}
}
batch := new(leveldb.Batch)
for piKey, piEntry := range previdx {
batch.Delete(append(append(skv.ObjectDocIndexFieldPrefix(opath.Fold, piKey), piEntry.Data...), opath.Field...))
}
batch.Delete(bkey)
if err := db.ldb.Write(batch, nil); err != nil {
rpl.Status = err.Error()
} else {
db._obj_meta_sync(prevobj.Meta.Type, &prevobj.Meta, opath, -1, 0, _obj_options_def)
// if _obj_event_handler != nil {
// _obj_event_handler(opath, skv.ObjectEventDeleted, 0)
// }
}
return rpl
}
func (db *DB) ObjectDocPut(fold, key string, obj interface{}, opts *skv.ObjectWriteOptions) *skv.Reply {
_obj_doc_global_locker.Lock()
_obj_doc_global_locker.Unlock()
var (
opath = skv.NewObjectPathKey(fold, key)
rpl = skv.NewReply("")
)
if len(opath.Fold) > skv.ObjectDocKeyLenMax ||
len(opath.Field) > skv.ObjectDocPriLenMax ||
obj == nil {
rpl.Status = skv.ReplyBadArgument
return rpl
}
var (
bkey = opath.EntryIndex()
objt = reflect.TypeOf(obj)
objv = reflect.ValueOf(obj)
prev = map[string]interface{}{}
previdx = map[uint8]skv.ObjectDocSchemaIndexEntryBytes{}
set = map[string]interface{}{}
)
if opts == nil {
opts = _obj_options_def
}
prevobj := db.RawGet(bkey).Object()
if prevobj.Status == skv.ReplyOK {
if err := prevobj.Data.JsonDecode(&prev); err == nil {
previdx = skv.ObjectDocIndexDataExport(_obj_doc_indexes, opath.Fold, prev)
}
}
if objt.Kind() == reflect.Struct {
for i := 0; i < objt.NumField(); i++ {
set[skv.ObjectDocIndexStringFilter(objt.Field(i).Name)] = objv.Field(i).Interface()
}
} else if objt.Kind() == reflect.Map {
mks := objv.MapKeys()
for _, mkv := range mks {
if mkv.Kind() == reflect.String {
set[skv.ObjectDocIndexStringFilter(mkv.String())] = objv.MapIndex(mkv).Interface()
}
}
} else {
rpl.Status = skv.ReplyBadArgument
return rpl
}
setidx, idxnew, idxdup := skv.ObjectDocIndexDataExport(_obj_doc_indexes, opath.Fold, set), [][]byte{}, [][]byte{}
// fmt.Println("\tsetidx", setidx)
// fmt.Println("\tprevidx", previdx)
for siKey, siEntry := range setidx {
var incr_set, incr_prev uint64
if siEntry.AutoIncr {
incr_set = dbutil.BytesToUint64(siEntry.Data)
}
//
if piEntry, ok := previdx[siKey]; ok {
if siEntry.AutoIncr && incr_set == 0 {
if incr_prev = dbutil.BytesToUint64(piEntry.Data); incr_prev > 0 {
siEntry.Data, incr_set = piEntry.Data, incr_prev
set[siEntry.FieldName] = incr_set
continue
}
} else if bytes.Compare(piEntry.Data, siEntry.Data) == 0 {
continue
}
idxdup = append(idxdup, append(append(skv.ObjectDocIndexFieldPrefix(opath.Fold, siKey), piEntry.Data...), opath.Field...))
}
//
if siEntry.AutoIncr {
if incr_set == 0 {
incr_set = db.RawIncrby(skv.ObjectDocIndexIncrKey(opath.Fold, siEntry.Seq), 1).Uint64()
ibs := make([]byte, 8)
binary.BigEndian.PutUint64(ibs, incr_set)
siEntry.Data = ibs[(8 - len(siEntry.Data)):]
set[siEntry.FieldName] = incr_set
} else if incr_set > 0 && incr_set > incr_prev {
if db.RawGet(skv.ObjectDocIndexIncrKey(opath.Fold, siEntry.Seq)).Uint64() < incr_set {
db.RawPut(skv.ObjectDocIndexIncrKey(opath.Fold, siEntry.Seq), []byte(strconv.FormatUint(incr_set, 10)), 0)
}
}
}
if siEntry.Unique || siEntry.AutoIncr {
objIdxKeyPrefix := append(skv.ObjectDocIndexFieldPrefix(opath.Fold, siKey), siEntry.Data...)
if rs := db.RawScan(objIdxKeyPrefix, []byte{}, 1).Hash(); len(rs) > 0 {
rpl.Status = skv.ReplyBadArgument
return rpl
}
}
idxnew = append(idxnew, append(append(skv.ObjectDocIndexFieldPrefix(opath.Fold, siKey), siEntry.Data...), opath.Field...))
}
//
//
batch := new(leveldb.Batch)
for _, idxkey := range idxdup {
batch.Delete(idxkey)
}
for _, idxkey := range idxnew {
batch.Put(idxkey, []byte{})
}
bvalue, _ := dbutil.JsonEncode(set)
sum := crc32.ChecksumIEEE(bvalue)
if prevobj.Meta.Sum == sum {
return skv.NewReply(skv.ReplyOK)
}
db._obj_meta_sync(skv.ObjectTypeDocument, &prevobj.Meta, opath, int64(len(bvalue)), sum, _obj_options_def)
batch.Put(bkey, append(prevobj.Meta.Export(), bvalue...))
if err := db.ldb.Write(batch, nil); err != nil {
rpl.Status = err.Error()
}
return rpl
}