Golang CypherRunner.CypherBatch方法代碼示例

func getNodeRelationshipNames(cypherRunner neoutils.CypherRunner, uuid string) (relationshipsFromNodeWithUUID relationships, relationshipsToNodeWithUUID relationships, err error) {
	// find all the -> relationships
	relationshipsFromNodeWithUUID = relationships{}
	readRelationshipsFromNodeWithUUIDQuery := &neoism.CypherQuery{
		Statement: `match (a:Thing{uuid:{uuid}})-[r]->(b)
			    return distinct type(r) as relationship`,
		Parameters: map[string]interface{}{
			"uuid": uuid,
		},
		Result: &relationshipsFromNodeWithUUID,
	}

	// find all the <- relationships
	relationshipsToNodeWithUUID = relationships{}
	readRelationshipsToNodeWithUUIDQuery := &neoism.CypherQuery{
		Statement: `match (a:Thing{uuid:{uuid}})<-[r]-(b)
			    return distinct type(r) as relationship`,
		Parameters: map[string]interface{}{
			"uuid": uuid,
		},
		Result: &relationshipsToNodeWithUUID,
	}

	readQueries := []*neoism.CypherQuery{readRelationshipsFromNodeWithUUIDQuery, readRelationshipsToNodeWithUUIDQuery}

	err = cypherRunner.CypherBatch(readQueries)

	if err != nil {
		return nil, nil, err
	}

	return relationshipsFromNodeWithUUID, relationshipsToNodeWithUUID, nil
}

// return relationship details in both directions
func readRelationshipDetails(cypherRunner neoutils.CypherRunner, contentType string, orgUUID string) ([]property, []property, error) {

	transferredLRProperty := []property{}
	readRelationshipsQueryLR := &neoism.CypherQuery{
		Statement: fmt.Sprintf(`match (co:%s)-[r]->(c:Thing{uuid:{uuid}})
 				return r.platformVersion, type(r) as name`, contentType),
		Parameters: map[string]interface{}{
			"uuid": orgUUID,
		},
		Result: &transferredLRProperty,
	}

	transferredRLProperty := []property{}
	readRelationshipsQueryRL := &neoism.CypherQuery{
		Statement: fmt.Sprintf(`match (co:%s)<-[r]-(c:Thing{uuid:{uuid}})
 				return r.platformVersion, type(r) as name`, contentType),
		Parameters: map[string]interface{}{
			"uuid": orgUUID,
		},
		Result: &transferredRLProperty,
	}

	err := cypherRunner.CypherBatch([]*neoism.CypherQuery{readRelationshipsQueryLR, readRelationshipsQueryRL})

	return transferredLRProperty, transferredRLProperty, err
}

func cleanDB(db neoutils.CypherRunner, t *testing.T, assert *assert.Assertions, uuidsToClean []string) {
	qs := []*neoism.CypherQuery{}

	for _, uuid := range uuidsToClean {
		qs = append(qs, &neoism.CypherQuery{Statement: fmt.Sprintf("MATCH (org:Thing {uuid: '%v'})<-[:IDENTIFIES*0..]-(i:Identifier) DETACH DELETE org, i", uuid)})
		qs = append(qs, &neoism.CypherQuery{Statement: fmt.Sprintf("MATCH (org:Thing {uuid: '%v'}) DETACH DELETE org", uuid)})
	}

	err := db.CypherBatch(qs)
	assert.NoError(err)
}

func cleanDB(db neoutils.CypherRunner, t *testing.T, assert *assert.Assertions) {
	qs := []*neoism.CypherQuery{
		{
			Statement: fmt.Sprintf("MATCH (mc:Thing {uuid: '%v'}) DETACH DELETE mc", minimalContentUuid),
		},
		{
			Statement: fmt.Sprintf("MATCH (fc:Thing {uuid: '%v'}) DETACH DELETE fc", fullContentUuid),
		},
	}

	err := db.CypherBatch(qs)
	assert.NoError(err)
}

func cleanRelationshipDB(db neoutils.CypherRunner, t *testing.T, assert *assert.Assertions, uuidsToClean []string) {
	cleanDB(db, t, assert, uuidsToClean)

	qs := []*neoism.CypherQuery{
		{
			Statement: fmt.Sprintf("MATCH (c:Content {uuid: '%v'})-[rel]-(o) DELETE c, rel ", relationShipTransferContentUUID),
		},
		{
			Statement: fmt.Sprintf("MATCH (c:Content {uuid: '%v'}) DELETE c ", relationShipTransferContentUUID),
		},
	}

	err := db.CypherBatch(qs)
	assert.NoError(err)
}

func deleteAllViaService(db neoutils.CypherRunner, assert *assert.Assertions, annotationsRW annotations.Service) {
	_, err := annotationsRW.Delete(contentUUID)
	assert.Nil(err)

	qs := []*neoism.CypherQuery{
		{
			Statement: fmt.Sprintf("MATCH (c:Thing {uuid: '%v'})-[rel]-(o) DELETE c, rel ", contentUUID),
		},
		{
			Statement: fmt.Sprintf("MATCH (c:Thing {uuid: '%v'}) DELETE c ", contentUUID),
		},
	}

	err = db.CypherBatch(qs)
	assert.NoError(err)
}

func checkDbClean(db neoutils.CypherRunner, t *testing.T, uuidsToClean []string) {
	assert := assert.New(t)

	result := []struct {
		UUID string `json:"org.uuid"`
	}{}

	checkGraph := neoism.CypherQuery{
		Statement: `
			MATCH (org:Thing) WHERE org.uuid in {uuids} RETURN org.uuid
		`,
		Parameters: neoism.Props{
			"uuids": uuidsToClean,
		},
		Result: &result,
	}
	err := db.CypherBatch([]*neoism.CypherQuery{&checkGraph})
	assert.NoError(err)
	assert.Empty(result)
}

func writeClassifedByRelationship(db neoutils.CypherRunner, contentId string, conceptId string, lifecycle string, t *testing.T, assert *assert.Assertions) {

	var annotateQuery string
	var qs []*neoism.CypherQuery

	if lifecycle == "" {
		annotateQuery = `
                MERGE (content:Thing{uuid:{contentId}})
                MERGE (upp:Identifier:UPPIdentifier{value:{conceptId}})
                MERGE (upp)-[:IDENTIFIES]->(concept:Thing) ON CREATE SET concept.uuid = {conceptId}
                MERGE (content)-[pred:IS_CLASSIFIED_BY {platformVersion:'v1'}]->(concept)
          `
		qs = []*neoism.CypherQuery{
			{
				Statement:  annotateQuery,
				Parameters: neoism.Props{"contentId": contentId, "conceptId": conceptId},
			},
		}
	} else {
		annotateQuery = `
                MERGE (content:Thing{uuid:{contentId}})
                MERGE (upp:Identifier:UPPIdentifier{value:{conceptId}})
                MERGE (upp)-[:IDENTIFIES]->(concept:Thing) ON CREATE SET concept.uuid = {conceptId}
                MERGE (content)-[pred:IS_CLASSIFIED_BY {platformVersion:'v1', lifecycle: {lifecycle}}]->(concept)
          `
		qs = []*neoism.CypherQuery{
			{
				Statement:  annotateQuery,
				Parameters: neoism.Props{"contentId": contentId, "conceptId": conceptId, "lifecycle": lifecycle},
			},
		}

	}

	err := db.CypherBatch(qs)
	assert.NoError(err)
}