func PushRes(stub *pub.WebApiStub, BID, name, filename string, ver int) (ID string, err error) {
log.V(" push", name, filename)
if name == "" {
return "", errName.Format("is null")
}
var oldver int
var oldId string
oldver, err = pub.O2Int(stub.Hget(BID, name, pub.FD_LastVer))
if err != nil {
oldver = 0
}
log.V("last version:", oldver)
if ver > 0 && ver <= oldver {
return "", errVer.Format(ver, oldver)
}
strVer := fmt.Sprint(oldver)
if oldId, err = pub.O2Str(stub.Hget(BID, name, strVer)); err != nil {
fmt.Fprintln(os.Stderr, err.Error())
oldId = ""
}
log.V("last id:", oldId)
//读取文件
var rd []byte
rd, err = ioutil.ReadFile(filename)
if err != nil {
return
}
ID, err = stub.Setdata(BID, rd)
if err != nil {
return
}
log.V("new id:", ID)
if ID == oldId {
log.V("resource not changed")
return
}
ver = oldver + 1
strver := fmt.Sprintf("%d", oldver+1)
stub.Hset(BID, name, strver, ID)
stub.Hset(BID, name, pub.FD_LastVer, ver)
return
}
