SelectionDeleting Event is running when i double click on link

@chinenyem wrote:

Hello I created a SelectionDeleting Event, which is working. However when I double click on a link it says g is null. The double clicking on a link it totally seperate from the selectiondeleting function. Its as if when I call the following

var newnode = createNodeAndLink(link._dragData, fromnode, linkDataFrom, linkDataTo );

it errors out to g is null in the console. This function was working properly before I added my SelectionDeleting function. The code for the SelectionDeleting function is below: Just to reiterate SelectionDeleting function works. The createNodeAndLink works if the SelectionDeleting function is commented out.

myDiagram.selection.each(function(node) {
//general deletion of a node
if (node instanceof go.Node) {
data = node.data;
myDiagram.model.setDataProperty(data, 'status', 'deleted');
myDiagram.model.setDataProperty(data, 'visible', false);
console.log(myDiagram.selection.first().part);
checkGroupNode = myDiagram.selection.first().part.findNodesConnected();
console.log(checkGroupNode)
while (checkGroupNode.next()) {
if (checkGroupNode.value.data.type === "group_parent"){
myDiagram.model.setDataProperty(checkGroupNode.value.data, 'status', 'deleted');
myDiagram.model.setDataProperty(checkGroupNode.value.data, 'visible', false);
var partsGroup = checkGroupNode.value.memberParts;
while (partsGroup.next()){
myDiagram.model.setDataProperty(partsGroup.value.data, 'status', 'deleted');
myDiagram.model.setDataProperty(partsGroup.value.data, 'visible', false);
}
var linksConnectedGroup = checkGroupNode.value.findLinksConnected();
while (linksConnectedGroup.next()){
console.log(linksConnectedGroup.value.data)
savedLink = linksConnectedGroup.value;
}
}
}
}

                        //deletion of a group and its children
                         if (myDiagram.selection.first().part.data.type === 'group_parent') {
                            for (var it = myDiagram.nodes; it.next(); ) {
                                var n = it.value;  // n is now a Node or a Group
                                if (n.data.type === "link_item" && n.data.group === data.key ) {
                                   myDiagram.model.setDataProperty(n.data, 'status', 'deleted');
                                   myDiagram.model.setDataProperty(data, 'visible', false);
                                   var it = myDiagram.selection.first().part.findLinksConnected(), i= 0;
                                   while (it.next()) {
                                       i++
                                      var item = it.value, fromNode, toNode;
                                      if (i === 1){
                                          fromNode = item.data['to'];
                                      } else if (i === 2){
                                         toNode = item.data['from'];
                                      }
                                   }
                                   myDiagram.startTransaction("create Links");
                                   myDiagram.model.addLinkData({ from: fromNode, to: toNode });
                                   myDiagram.commitTransaction("create Links");
                                }
                            }
                        }


                        //deletion of links
                        if (myDiagram.selection.first().part.data.points){
                            //console.log(myDiagram.findLinkForData(myDiagram.selection.first().part.data).data)
                            var data = myDiagram.findLinkForData(myDiagram.selection.first().part.data).data,
                                fromNode = data['from'],
                                toNodeOld = data['to'],
                                nodeOld, finalToNode;
                            if (data['group_id'] !== 'undefined'){
                                 nodeOld = myDiagram.findNodeForKey(fromNode);
                                 //console.log(nodeOld.data['key'])
                            }else{
                                 nodeOld = myDiagram.findNodeForKey(toNodeOld);
                                 //console.log(nodeOld.data['key'])
                            }
                                var it = nodeOld.findLinksOutOf(), group, toNodeNew;
                                while (it.next()){
                                    toNodeNew = it.value.data['to'];
                                    if (it.value.data['group_id']){
                                         group = myDiagram.findNodeForKey(it.value.data['from']);
                                    }else if (it.value.data['group_id'] !== 'undefined') {
                                         group = myDiagram.findNodeForKey(it.value.data['to']);
                                    }
                                }

                                if (group.data.type ===  'group_parent'){
                                    //group status to deleted and visible to false
                                    myDiagram.model.setDataProperty(group.data, 'status', 'deleted');
                                    myDiagram.model.setDataProperty(group.data, 'visible', false);
                                    //nodes within group status to deleted and visible to false
                                    for (var it = myDiagram.nodes; it.next(); ) {
                                        var n = it.value;
                                        if (n.data.type === "link_item" && n.data.group === group.data.key ) {
                                            myDiagram.model.setDataProperty(n.data, 'status', 'deleted');
                                            myDiagram.model.setDataProperty(n.data, 'visible', false);
                                        }
                                    }
                                   myDiagram.startTransaction("create Links");
                                   myDiagram.model.addLinkData({ from: fromNode, to: toNodeNew });
                                   myDiagram.commitTransaction("create Links");
                                }

                            var keyGroup = group.data['key'];
                        }

                        if (keyGroup){
                            //console.log(group.data['key'])
                            var itGroupInto = group.findNodesInto(),
                                itGroupOut = group.findNodesOutOf(),
                                fromGroupNode,
                                toGroupNode;
                             while (itGroupInto.next()){
                               fromGroupNode = itGroupInto.value.data['key']
                               //console.log(itGroupInto.value.data['key'])
                             }
                             while (itGroupOut.next()){
                                toGroupNode = itGroupOut.value.data['key']
                               // console.log(itGroupOut.value.data['key'])
                             }
                              myDiagram.startTransaction("create Links");
                              myDiagram.model.addLinkData({ from: fromGroupNode, to: toGroupNode });
                              myDiagram.commitTransaction("create Links");
                              myDiagram.model.setDataProperty(group.data, 'status', 'deleted');
                              myDiagram.model.setDataProperty(group.data, 'visible', false);

                               for (var it = myDiagram.nodes.iterator; it.next(); ) {
                                      // console.log(it.value)
                                       if (it.value instanceof go.Node ) {
                                           if (it.value === group){
                                                savedNode = it.value;
                                            }
                                        }
                              }
                       }
                    });
                    if (typeof savedNode !== 'undefined'){
                        myDiagram.remove(savedNode)
                    }
                    if (typeof savedLink !== 'undefined'){
                        myDiagram.remove(savedLink)
                    }
                   // console.log(myDiagram.model.toJson())
                    e.cancel = false;
                    myDiagram.commitTransaction('change status');
                     e.cancel = false;
                myDiagram.commitTransaction("delete");
              }

Posts: 7

Participants: 2

Read full topic