Some more fixes regarding custom id fields

lib/network/modules/Clustering.js

@@ -258,6 +258,8 @@ class ClusterEngine {
   */
   _createClusterEdges (childNodesObj, childEdgesObj, clusterNodeProperties, clusterEdgeProperties) {
     let edge, childNodeId, childNode, toId, fromId, otherNodeId;
+    let nodeIdField = this.body.data.nodes._fieldId;
+    let edgeIdField = this.body.data.edges._fieldId;
 
     // loop over all child nodes and their edges to find edges going out of the cluster
     // these edges will be replaced by clusterEdges.
@@ -279,13 +281,13 @@ class ClusterEngine {
           else {
             // set up the from and to.
             if (edge.toId == childNodeId) { // this is a double equals because ints and strings can be interchanged here.
-              toId = clusterNodeProperties.id;
+              toId = clusterNodeProperties[nodeIdField];
               fromId = edge.fromId;
               otherNodeId = fromId;
             }
             else {
               toId = edge.toId;
-              fromId = clusterNodeProperties.id;
+              fromId = clusterNodeProperties[nodeIdField];
               otherNodeId = toId;
             }
           }
@@ -310,7 +312,7 @@ class ClusterEngine {
       // set up the edge
       clonedOptions.from = createEdges[j].fromId;
       clonedOptions.to = createEdges[j].toId;
-      clonedOptions.id = 'clusterEdge:' + util.randomUUID();
+      clonedOptions[edgeIdField] = 'clusterEdge:' + util.randomUUID();
       //clonedOptions.id = '(cf: ' + createEdges[j].fromId + " to: " + createEdges[j].toId + ")" + Math.random();
 
       // create the edge and give a reference to the one it replaced.
@@ -351,6 +353,8 @@ class ClusterEngine {
   * @private
   */
   _cluster(childNodesObj, childEdgesObj, options, refreshData = true) {
+    let nodeIdField = this.body.data.nodes._fieldId;
+
     // kill condition: no children so can't cluster or only one node in the cluster, don't bother
     if (Object.keys(childNodesObj).length < 2) {return;}
 
@@ -395,8 +399,8 @@ class ClusterEngine {
     }
 
     // check if we have an unique id;
-    if (clusterNodeProperties.id === undefined) {clusterNodeProperties.id = 'cluster:' + util.randomUUID();}
-    let clusterId = clusterNodeProperties.id;
+    if (clusterNodeProperties[nodeIdField] === undefined) {clusterNodeProperties[nodeIdField] = 'cluster:' + util.randomUUID();}
+    let clusterId = clusterNodeProperties[nodeIdField];
 
     if (clusterNodeProperties.label === undefined) {
       clusterNodeProperties.label = 'cluster';
@@ -415,7 +419,7 @@ class ClusterEngine {
     }
 
     // force the ID to remain the same
-    clusterNodeProperties.id = clusterId;
+    clusterNodeProperties[nodeIdField] = clusterId;
 
     // create the clusterNode
     let clusterNode = this.body.functions.createNode(clusterNodeProperties, Cluster);
@@ -426,7 +430,7 @@ class ClusterEngine {
     clusterNode.clusterEdgeProperties = options.clusterEdgeProperties;
 
     // finally put the cluster node into global
-    this.body.nodes[clusterNodeProperties.id] = clusterNode;
+    this.body.nodes[clusterNodeProperties[nodeIdField]] = clusterNode;
 
     // create the new edges that will connect to the cluster, all self-referencing edges will be added to childEdgesObject here.
     this._createClusterEdges(childNodesObj, childEdgesObj, clusterNodeProperties, options.clusterEdgeProperties);
@@ -447,13 +451,13 @@ class ClusterEngine {
     // disable the childNodes
     for (let nodeId in childNodesObj) {
       if (childNodesObj.hasOwnProperty(nodeId)) {
-        this.clusteredNodes[nodeId] = {clusterId:clusterNodeProperties.id, node: this.body.nodes[nodeId]};
+        this.clusteredNodes[nodeId] = {clusterId:clusterNodeProperties[nodeIdField], node: this.body.nodes[nodeId]};
         this.body.nodes[nodeId].setOptions({hidden:true, physics:false});
       }
     }
 
     // set ID to undefined so no duplicates arise
-    clusterNodeProperties.id = undefined;
+    clusterNodeProperties[nodeIdField] = undefined;
 
     // wrap up
     if (refreshData === true) {

lib/network/modules/components/nodes/Cluster.js

@@ -4,8 +4,8 @@ import Node from '../Node'
  *
  */
 class Cluster extends Node {
-  constructor(options, body, imagelist, grouplist, globalOptions) {
-    super(options, body, imagelist, grouplist, globalOptions);
+  constructor(id, options, body, imagelist, grouplist, globalOptions) {
+    super(id, options, body, imagelist, grouplist, globalOptions);
 
     this.isCluster = true;
     this.containedNodes = {};