fix(dataset): Dataset has transient field NumVersions

Merge pull request #177 from qri-io/num-versions

dataset.go

@@ -71,6 +71,8 @@ type Dataset struct {
  PreviousPath string `json:"previousPath,omitempty"`
  // ProfileID of dataset owner, transient
  ProfileID string `json:"profileID,omitempty"`
+ // Number of versions this dataset has, transient
+ NumVersions int `json:"numVersions,omitempty"`
  // Qri is a key for both identifying this document type, and versioning the
  // dataset document definition itself.
  Qri string `json:"qri"`
@@ -132,6 +134,7 @@ func (ds *Dataset) DropTransientValues() {
  ds.Name = ""
  ds.Path = ""
  ds.ProfileID = ""
+ ds.NumVersions = 0
 }
 
 var (

dataset_test.go

@@ -9,7 +9,32 @@ import (
 )
 
 func TestDatasetDropTransientValues(t *testing.T) {
- t.Log("TODO (b5)")
+ ds := Dataset{
+ Body: []int{1,2,3},
+ Name: "three numbers",
+ Path: "/tmp/ds",
+ ProfileID: "QmBlahBlah",
+ NumVersions: 4,
+ }
+ ds.DropTransientValues()
+ if !ds.IsEmpty() {
+ t.Errorf("error, dropping transient values should leave an empty dataset")
+ }
+
+ ds = Dataset{
+ Body: []int{1,2,3},
+ Name: "three numbers",
+ Path: "/tmp/ds",
+ ProfileID: "QmBlahBlah",
+ NumVersions: 4,
+ Meta: &Meta{
+ Title: "a title",
+ },
+ }
+ ds.DropTransientValues()
+ if ds.IsEmpty() {
+ t.Errorf("error dataset should not be empty")
+ }
 }
 
 func TestDatasetOpenBodyFile(t *testing.T) {