func recursiveJson(key *datastore.Key) Response {
var parentJson Response
if key.Parent() != nil {
parentJson = recursiveJson(key.Parent())
}
return Response{
"stringID": key.StringID(),
"intID": key.IntID(),
"kind": key.Kind(),
"appID": key.AppID(),
"namespace": key.Namespace(),
"parent": parentJson,
}
}
func translate(sourceKey *datastore.Key, translateAppId bool, targetAppId string, translateNamespace bool, targetNamespace string) (*datastore.Key, error) {
if !translateAppId {
targetAppId = sourceKey.AppID()
}
if !translateNamespace {
targetNamespace = sourceKey.Namespace()
}
var translatedParent *datastore.Key = nil
if sourceKey.Parent() != nil {
var err error
translatedParent, err = translate(sourceKey.Parent(), translateAppId, targetAppId, translateNamespace, targetNamespace)
if err != nil {
return nil, err
}
}
return datastorekey.CreateKey(nil, targetAppId, targetNamespace, sourceKey.Kind(), sourceKey.StringID(), sourceKey.IntID(), translatedParent)
}
func fillFields(key *datastore.Key, data map[string]interface{}) {
data["kind"] = key.Kind()
data["stringid"] = key.StringID()
data["intid"] = key.IntID()
data["appid"] = key.AppID()
data["namespace"] = key.Namespace()
if key.Parent() != nil {
data["kind2"] = key.Parent().Kind()
data["stringid2"] = key.Parent().StringID()
data["intid2"] = key.Parent().IntID()
if key.Parent().Parent() != nil {
data["kind3"] = key.Parent().Parent().Kind()
data["stringid3"] = key.Parent().Parent().StringID()
data["intid3"] = key.Parent().Parent().IntID()
}
}
}
func extract(key *datastore.Key, field string) (string, error) {
switch strings.ToLower(field) {
case "kind":
return key.Kind(), nil
case "appid":
return key.AppID(), nil
case "namespace":
return key.Namespace(), nil
case "name":
return key.StringID(), nil
case "id":
return fmt.Sprintf("%v", key.IntID()), nil
case "parent":
if key.Parent() == nil {
return "", nil
} else {
return key.Parent().Encode(), nil
}
default:
return "", fmt.Errorf("Unsupported field [%v]. Supported fields are kind, appID, namespace, name, id, parentkey.", field)
}
}
