know in what level I am using php function

[Martin Larsson]

hello,

In a hierarchical tree, I've been trying to find out what level I'm currently on.
in  particular if i'm on the last (lowest). is there a php function for this I havent found or so I need to use SQL to do this?

best regards

martin

[José Raddaoui]

Hi Martin,

Guessing you are talking about knowing that from a code perspective. There is a PHP method for that called `hasChildren()` on entities with nested set, it just checks the `rgt - lft` difference without hitting the database again. Here an example of its usage:

https://github.com/artefactual/atom/blob/qa/2.x/apps/qubit/modules/informationobject/actions/treeViewComponent.class.php#L50-L53

And its implementation on the information object entity:

https://github.com/artefactual/atom/blob/qa/2.x/lib/model/om/BaseInformationObject.php#L610-L613

Is that what you are looking for?

Best,

Radda.