Using views, how to render a block of father terms with a brief shortlist of child terms?

Question

I've a list of taxonomy terms with related subs as follows:

Father 1

• child 1.1
• child 1.2
• child 1.n

Father 2

• child 2.1
• child 2.2
• child 2.n

Father 3

• child 3.1
• child 3.2
• child 3.n

and so on.

I need to put a list of the father followed by the first 5 child elements in a block and put it into homepage.

Now the point is, that after lots of trying, I didn't find a solution about how I can do this.

The only thing that I managed was the selective display of the fathers, but I didn't reach the child in any way. I don't reach the father through a node, or his own term page, because I only need the taxonomy tree iterated in a block containing a list of unformatted columns.

I have already themed all but I'm still not capable of displaying the childs under the father term.

For short, here is a representation of what I'm looking for:

I'm going out of my head because of this, so any help will be greatly appreciated!

Answer 1

If you didn't find better solution you may create one view that will display parent term name and parent tid and second view that will display four children with a contextual filter by parent tid. And using template_preprocess_views_view_field insert view with terms children in the view with parents.

/**
 * Implements hook_preprocess_views_view_field().
 */
 function mymodule_preprocess_views_view_field(&$vars) {
   switch ($vars['view']->name) {
     case 'terms_parents':
       if ($vars['field']->options['id'] == 'tid') {
         $vars['output'] = views_embed_view('children_view', 'display', array($vars['output']));
       }
       break;
   }
}

Answer 2

Consider adding appropriate "relationships" to your view (think of a "join" in SQL).

If that doesn't help, consider enhancing your question by adding a screebprint of your current view setup (wher eyou can see fields, relatationships, etc).