Re: How to get all children of a parent if parent_id field is null

May we assume that you are employing the Tree Behavior in this Section model?

If so, the parent_id would only be null for the top most parent... correct? Generally, when you use a tree or this kind, you must look at it like a collection? So the top most element describes the collection. So, you would always assume is had children and that is always has a parent... then test accordingly.

If not, then you have some more obvious errors in the code you provided... but before we get in to that... let's answer the Tree question.

Let me know.

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