A simple undo

Oh no .. I shouldn’t have double-clicked 🙁

When I explore a graph, it always happens to me at some point. I double-click a node and oops …  my screen fills up with way more nodes than I anticipated. And since I’m almost always operating in autoComplete mode, that also includes all relationships connecting the newly loaded neighbours to the node I double-clicked.

Yes, I know, we have the default Neighbours panel that allows me to explore the graph in a controlled way by loading only selected neighbours. But well, sometimes you’re in a hurry and and a bit careless …

So I figured there must be a way to just go back one step and unload all nodes and relationships that result from a double-click.

IA_IO to the rescue 🙂

Fortunately, Graphileon has the IA_IO function that can help us. It can store any run-time variable and that is exactly what we need here: store the nodes and relationships that are present in the IA_NetworkView at the moment a nodeDoubleClick event is triggered.

The logic is quite simple (click on the picture below for an interactive diagram with the relevant functions and triggers)  :

  • Execute an IA_IO function upon the first nodeDoubleClick event that occurs, and ensure that it stays alive by setting stayAlive:session or stayAlive:dashboard . The IA_IO function has an _instance name, so we can reference it later.
  • Store the two arrays with nodes and relationships in the placeholders on the IA_IO function.
  • The undo functionality is implemented using a batch trigger, i.e. a  [:TRIGGER {type:'batch'}] relation from the IA_NetworkView to itself.  It retrieves the nodes and relations from the IA_IO function instance and sends them back to the IA_NetworkView  .


The video below shows the undo functionality in action.

Card image cap
Analysis of scenarios demo, installation script and explanation

A while ago, Tom posted a video called Analysis of scenarios in Graphileon. In this video he demonstrates a Graphileon application that takes a network and uses a graph algorithm to find a shortest path between two nodes. While this in itself is not very spectacular -it’s one of the reasons graph databases are used in … Continued

Card image cap
Query list demo application

So you have long list of custom Cypher queries that you want to run regularly against your graph data store? Some of them return tabulated output and others return networks? You don’t want to clutter your dashboard with too many buttons and want to economize the use of Function nodes? Here is a simple Graphileon solution that … Continued

Card image cap
Topic Extraction with MeaningCloud demo for your implementation

Following our article on topic extraction with MeaningCloud and Graphileon we had some users asking for instructions on how to build that application themselves. In this article we’ll describe the 2nd demo from that blog post, a Graphileon application which allows you add ‘Documents’ -pieces of text on a particular topic- which are then processed … Continued

Get started with the Personal Edition

The easiest way to get to know Graphileon is by using the Personal Edition. Build graphy applications and browse your graph stores in a way you never did before.