LiveTree Frequently Asked Questions

Why am I getting the following error: LiveTree error: could not get data from server: HTTP error: 500?

This means the data retrieval action on the server is having some kind of problem. Take a look at the Rails server’s console output, and you should see a line that looks like this:

    127.0.0.1 - - [20/Feb/2006:16:29:50 Pacific Standard Time] "GET /my_controller/tree_live_tree_data?item_id=1&depth=3 HTTP/1.1" 500 245

Copy-and-paste the part between GET and HTTP, with "localhost:3000" prepended, into your web browser’s address bar. For example, for the output line above, you would go to this URL:

    http://localhost:3000/my_controller/tree_live_tree_data?item_id=1&depth=3

Now you should be able to see a detailed error message from the server that will hopefully shed light on what is going on. Looking at your development.log may also help.

This assumes you are running Rails in development mode on port 3000 on your local workstation. You will have to adjust the URL in other conditions.

How do I display multiple trees without a root?

You need to give each tree a common parent in the database, and then use the hide_root_item parameter to LiveTree::LiveTreeHelper.live_tree in your view to hide that common parent.

In the future, there will be a way to do this without having a common parent in the database.