Пример #1
0
// loadTestData adds all the test data into the database.
func loadTestData(context interface{}, db *db.DB) error {

	// Make sure the old data is clear.
	if err := unloadTestData(context, db); err != nil {
		if !graph.IsQuadNotExist(err) {
			return err
		}
	}

	// -----------------------------------------------------------
	// Load example items, relationships, views, and patterns.

	items, rels, vs, pats, err := wirefix.Get()
	if err != nil {
		return err
	}

	if err := wirefix.Add(context, db, items, rels, vs, pats); err != nil {
		return err
	}

	// -----------------------------------------------------------
	// Build the example graph.

	mongoURI := cfg.MustURL("MONGO_URI")

	if err := cayleyshelf.InitQuadStore(mongoURI.String()); err != nil {
		return err
	}

	var quads []quad.Quad
	quads = append(quads, quad.Make(wirePrefix+"d1dfa366-d2f7-4a4a-a64f-af89d4c97d82", wirePrefix+"on", wirePrefix+"c1b2bbfe-af9f-4903-8777-bd47c4d5b20a", ""))
	quads = append(quads, quad.Make(wirePrefix+"6eaaa19f-da7a-4095-bbe3-cee7a7631dd4", wirePrefix+"on", wirePrefix+"c1b2bbfe-af9f-4903-8777-bd47c4d5b20a", ""))
	quads = append(quads, quad.Make(wirePrefix+"d16790f8-13e9-4cb4-b9ef-d82835589660", wirePrefix+"on", wirePrefix+"c1b2bbfe-af9f-4903-8777-bd47c4d5b20a", ""))
	quads = append(quads, quad.Make(wirePrefix+"80aa936a-f618-4234-a7be-df59a14cf8de", wirePrefix+"authored", wirePrefix+"d1dfa366-d2f7-4a4a-a64f-af89d4c97d82", ""))
	quads = append(quads, quad.Make(wirePrefix+"80aa936a-f618-4234-a7be-df59a14cf8de", wirePrefix+"authored", wirePrefix+"6eaaa19f-da7a-4095-bbe3-cee7a7631dd4", ""))
	quads = append(quads, quad.Make(wirePrefix+"a63af637-58af-472b-98c7-f5c00743bac6", wirePrefix+"authored", wirePrefix+"d16790f8-13e9-4cb4-b9ef-d82835589660", ""))
	quads = append(quads, quad.Make(wirePrefix+"a63af637-58af-472b-98c7-f5c00743bac6", wirePrefix+"flagged", wirePrefix+"80aa936a-f618-4234-a7be-df59a14cf8de", ""))

	tx := cayley.NewTransaction()
	for _, quad := range quads {
		tx.AddQuad(quad)
	}

	if err := db.NewCayley(tests.Context, tests.TestSession); err != nil {
		return err
	}

	store, err := db.GraphHandle(tests.Context)
	if err != nil {
		return err
	}
	defer store.Close()

	if err := store.ApplyTransaction(tx); err != nil {
		return err
	}

	return nil
}
Пример #2
0
func main() {
	// To see how most of this works, see hello_world -- this just add in a transaction
	store, err := cayley.NewMemoryGraph()
	if err != nil {
		log.Fatalln(err)
	}

	// Create a transaction of work to do
	// NOTE: the transaction is independent of the storage type, so comes from cayley rather than store
	t := cayley.NewTransaction()
	t.AddQuad(quad.Make("food", "is", "good", nil))
	t.AddQuad(quad.Make("phrase of the day", "is of course", "Hello World!", nil))
	t.AddQuad(quad.Make("cats", "are", "awesome", nil))
	t.AddQuad(quad.Make("cats", "are", "scary", nil))
	t.AddQuad(quad.Make("cats", "want to", "kill you", nil))

	// Apply the transaction
	err = store.ApplyTransaction(t)
	if err != nil {
		log.Fatalln(err)
	}

	p := cayley.StartPath(store, quad.String("cats")).Out(quad.String("are"))

	err = p.Iterate(nil).EachValue(nil, func(v quad.Value) {
		fmt.Println("cats are", v.Native())
	})
	if err != nil {
		log.Fatalln(err)
	}
}
Пример #3
0
// unloadTestData removes all the test data from the database.
func unloadTestData(context interface{}, db *db.DB) error {

	// ------------------------------------------------------------
	// Clear items, relationships, and views.

	wirefix.Remove("context", db, wirePrefix)

	// ------------------------------------------------------------
	// Clear cayley graph.

	var quads []quad.Quad
	quads = append(quads, quad.Make(wirePrefix+"d1dfa366-d2f7-4a4a-a64f-af89d4c97d82", wirePrefix+"on", wirePrefix+"c1b2bbfe-af9f-4903-8777-bd47c4d5b20a", ""))
	quads = append(quads, quad.Make(wirePrefix+"6eaaa19f-da7a-4095-bbe3-cee7a7631dd4", wirePrefix+"on", wirePrefix+"c1b2bbfe-af9f-4903-8777-bd47c4d5b20a", ""))
	quads = append(quads, quad.Make(wirePrefix+"d16790f8-13e9-4cb4-b9ef-d82835589660", wirePrefix+"on", wirePrefix+"c1b2bbfe-af9f-4903-8777-bd47c4d5b20a", ""))
	quads = append(quads, quad.Make(wirePrefix+"80aa936a-f618-4234-a7be-df59a14cf8de", wirePrefix+"authored", wirePrefix+"d1dfa366-d2f7-4a4a-a64f-af89d4c97d82", ""))
	quads = append(quads, quad.Make(wirePrefix+"80aa936a-f618-4234-a7be-df59a14cf8de", wirePrefix+"authored", wirePrefix+"6eaaa19f-da7a-4095-bbe3-cee7a7631dd4", ""))
	quads = append(quads, quad.Make(wirePrefix+"a63af637-58af-472b-98c7-f5c00743bac6", wirePrefix+"authored", wirePrefix+"d16790f8-13e9-4cb4-b9ef-d82835589660", ""))
	quads = append(quads, quad.Make(wirePrefix+"a63af637-58af-472b-98c7-f5c00743bac6", wirePrefix+"flagged", wirePrefix+"80aa936a-f618-4234-a7be-df59a14cf8de", ""))

	tx := cayley.NewTransaction()
	for _, quad := range quads {
		tx.RemoveQuad(quad)
	}

	if err := db.NewCayley(tests.Context, tests.TestSession); err != nil {
		return err
	}

	store, err := db.GraphHandle(tests.Context)
	if err != nil {
		return err
	}
	defer store.Close()

	if err := store.ApplyTransaction(tx); err != nil {
		return err
	}

	return nil

}