How to Deep Copy Nodes and Connectors

Question

Hi!

I would like to ask if there is a way to deep copy a node or connector? Since it has many circular references it is not possible to make use of libraries like lodash, neither make a simple JSON.parse(JSON.stringify(event.element)).

For example: When listening to events like propertyChange or collectionChange, extract the <NodeModel | ConnectorModel>event.element or new values only and deep copy it, to send its data to store.

Thanks.
Regards
Camila

Aravind Ravi · Accepted Answer

Hi Camila,Yes, you can get the node and connectors from the diagram
using the diagram getNodeObject and getConnectorObject public API method and
get the deep cloned version of node and connector respectively to avoid the
circular reference error while stringify the node.  RegardsAravind Ravi

Camila BlancFick · Answer

Would this answer be similar http://www.syncfusion.com/forums/167629/serialization-of-node-and-connector?reply=SEfS8Z ?

If I get the node serialized to create a copy like:

propertyChange(event: IPropertyChangeEventArgs): void {
    const obj = event.element as NodeModel;
    const jsonData = JSON.stringify(this.diagram.getNodeObject(obj.id));

    console.log(jsonData);
  }

Would it be the right way?