how to create view that display just 2 level of taxonomy vocabulary

Question

i have a vocabulary that contain plus of 5 level descendant, i need to create the view to display the first 2 levels and grouping by the first one, i do this:

1. FIELDS: (Parent) Taxonomy term: Name - Taxonomy term: Name
2. FILTER CRITERIA: Taxonomy vocabulary: Machine name (= All Type Announce)
3. SORT CRITERIA: (Parent) Taxonomy term: Weight (asc)
4. RELATIONSHIPS: Taxonomy term: Parent term

and i get all list of taxonomy for this vocabulary grouping by parents, how to set only 2 levels?

Answer 1

It's simple. In fact, there is no need to add any relationship in the Views. Just create the taxonomy term view and add a filter criteria of Taxonomy term: Parent term. (see screenshot) Then set the value to be equal to ''. This will fetch you all the parent terms as they don't have any parent! ('')

Answer 2

You should be just fine by introducing 2 chained parent relationships. Setting the criterion where parent of the parent is NULL should work. Well, this is a purely UI way of doing that, which is a pro. The con is that queries with nested relations might become heavy at some point, therefore consider turning on Views cache when you deploy the site.