v2 go-driver does not have bulk calls to save documents to graph collections present in v1

[scirahul]

I was using v1 go-driver and am trying to cutover to v2 go-driver. In v2 graph VertexCollection and EdgeCollection are not of Collection type, due to this I am unable to bulk add vertices or edges in a graph collection (possible earlier in v1 using collection.CreateDocuments() call)

Will there be a upcoming enhancement to fix this backward incompatibility?

Please let me know if there is a alternate way of achieving this.

Thanks!

[ajanikow]

Hello!

Overall, they share the same interfaces in V1. VertexCollection is an extension of Collection (as it should be).

Currently, in V2 you can use:

https://github.com/arangodb/go-driver/blob/master/v2/arangodb/database_collection.go#L35

You need to use the same name as in VertexCollection to get a collection object.

We will share Interfaces in the same way as in V1 in the next Release.

Best Regards,
Adam.

[enikon]

Hi,
The requested feature has been added:

// Create Vertex Collection
createVertResp, err := graph.CreateVertexCollection(ctx, vertexCollectionName, nil)
vertexCollection:= createVertResp.VertexCollection				

// Populate Vertex Collection
type DocVertex struct {
	Key   string `json:"_key,omitempty"`
	Value string `json:"value"`
}
verticesToAdd := []DocumentVertex{
	{
		Key:   "111",
		Value: "Value1",
	},
	{
		Key:   "222",
		Value: "Value2",
	},
	{
		Key:   "333",
		Value: "Value3",
	},
}
_, err = vertexCollection.CreateDocuments(ctx, verticesToAdd)

// Create Edges Collection
createEdgeResp, err := graph.CreateEdgeDefinition(ctx, edgeCollectionName, []string{vertexColumnName}, []string{vertexColumnName}, nil)
edgeCollection := createEdgeResp.Edge

// Populate Edges Collection
type DocEdge struct {
	From string `json:"_from"`
	To   string `json:"_to"`
}
verticesPath := vertexCollectionName+ "/"
edgesToAdd := []DocumentEdge{
	{
		From: verticesPath+ "111",
		To:   verticesPath + "222",
	},
	{
		From: verticesPath + "222",
		To:   verticesPath + "333",
	},
}
_, err = edgeCollection.CreateDocuments(ctx, edgesToAdd)

It is important to note that the SmartGraphs and the EnterpriseGraphs will not work correctly with the v1 document interface (Edge/VertedCollection.CreateDocuments) as they manage the Collections differently. In that case please use the dedicated CreateDocument method instead of the reenabled v1 graph collection interface.

Best regards