// TestInferId tests the inference of an item_id from type and source id.
func TestInferId(t *testing.T) {
tests.ResetLog()
defer tests.DisplayLog()
// Test the inference of item_id where source_id is present.
d, err := itemfix.GetData("data.json")
if err != nil {
t.Fatalf("\t%s\tShould be able to load item data.json fixture: %v", tests.Failed, err)
}
// Create an item out of the data.
it := item.Item{
Type: "test_type",
Version: 1,
Data: d,
}
// Infer the id from the data.
if err := it.InferIDFromData(); err != nil {
t.Fatalf("\t%s\tShould be able to InferID from data containing field id: %v", tests.Failed, err)
}
// Check to ensure the id is as expected.
if it.ID != fmt.Sprintf("%s_%v", it.Type, d["id"]) {
t.Fatalf("\t%s\tShould infer item_id of form type + \"_\" + source_id: %v", tests.Failed, err)
}
// Test the inference of item_id where source_id is not present.
d, err = itemfix.GetData("data_without_id.json")
if err != nil {
t.Fatalf("\t%s\tShould be able to load item data_without_id.json fixture: %v", tests.Failed, err)
}
// Create an item out of the data.
it = item.Item{
Type: "test_type",
Version: 1,
Data: d,
}
// Ensure that the id fails without the source_id in data.
if err := it.InferIDFromData(); err == nil {
t.Fatalf("\t%s\tShould not be able to InferID from data not containing field id: %v", tests.Failed, err)
}
}
// Import receives POSTed data, itemizes it then imports it via the item API.
// 204 SuccessNoContent, 400 Bad Request, 404 Not Found, 500 Internal.
func (dataHandle) Import(c *web.Context) error {
// Unmarshall the data packet from the Request Body.
var dat map[string]interface{}
if err := json.NewDecoder(c.Request.Body).Decode(&dat); err != nil {
return err
}
// Create a new item with known Type, Version and Data.
itm := item.Item{
Type: c.Params["type"],
Version: defaultVersion,
Data: dat,
}
// Item.ID must be inferred from the source_id in the data.
if err := itm.InferIDFromData(); err != nil {
return err
}
db := c.Ctx["DB"].(*db.DB)
graphHandle, err := db.GraphHandle(c.SessionID)
if err != nil {
return err
}
// Upsert the item into the items collection and add/remove necessary
// quads to/from the graph.
if err := sponge.Import(c.SessionID, db, graphHandle, &itm); err != nil {
return err
}
// Respond with no content success.
c.Respond(itm, http.StatusOK)
return nil
}
// viewSave retrieve items for a view and saves those items to a new collection.
func viewSave(context interface{}, mgoDB *db.DB, v *view.View, viewParams *ViewParams, ids []string, embeds embeddedRels) error {
// Determine the buffer limit that will be used for saving this view.
if viewParams.BufferLimit != 0 {
bufferLimit = viewParams.BufferLimit
}
// Form the query.
q := bson.M{"item_id": bson.M{"$in": ids}}
results, err := mgoDB.BatchedQueryMGO(context, v.Collection, q)
if err != nil {
return err
}
// Set up a Bulk upsert.
tx, err := mgoDB.BulkOperationMGO(context, viewParams.ResultsCollection)
if err != nil {
return err
}
// Group the embedded relationships by item and predicate/tag.
embedByItem, err := groupEmbeds(embeds)
if err != nil {
return err
}
// Iterate over the view items.
var queuedDocs int
var result item.Item
for results.Next(&result) {
// Get the related IDs to embed.
itemEmbeds, ok := embedByItem[result.ID]
if ok {
// Put the related IDs in the item.
relMap := make(map[string]interface{})
for k, v := range itemEmbeds {
relMap[k] = v
}
result.Related = relMap
}
// Queue the upsert of the result.
tx.Upsert(bson.M{"item_id": result.ID}, result)
queuedDocs++
// If the queued documents for upsert have reached the buffer limit,
// run the bulk upsert and re-initialize the bulk operation.
if queuedDocs >= bufferLimit {
if _, err := tx.Run(); err != nil {
return err
}
tx, err = mgoDB.BulkOperationMGO(context, viewParams.ResultsCollection)
if err != nil {
return err
}
queuedDocs = 0
}
}
if err := results.Close(); err != nil {
return err
}
// Run the bulk operation for any remaining queued documents.
if _, err := tx.Run(); err != nil {
return err
}
return nil
}