Show taxonomy children in parent

Question

I have a block view that only displays the taxonomy terms in a vocabulary. However I would like to have a link generated in that block with an "ALL" option. So I created a new taxonomy entry, which is the parent of all other terms.

However if I go to the taxonomy parent, the children aren't shown, only if the nodes are set to the parent value explicitly.

For example:

All (tid=1)
-Shirts (tid=2)
--Small (tid=3)
--Big (tid=4)
-Shoes (tid=5)

So if I were to go to http://mysite.com/taxonomy/term/1 I want it to show all nodes in terms 2 and 5 (would be ideally to have 3 and 4 show up also, but not mandatory).

I am using Drupal 7.x

Answer 1

Have you tried using taxonomy_get_children()?

Finds all children of a term ID.