It might be easiest to use computed_field to store the appropriate range value on the node. Then override the views-exposed-form.tpl.php if you need the buttons to really be buttons. You could always get fancy with JS and CSS using radio buttons and better_exposed_filters auto-submit. Facets would work, but you would still need to use computed_field, I think Facet API only supports ranges for numeric and date fields.

Ted

On 8/21/2012 12:29 PM, toon severijns wrote:

Hello,

Could anybody help me with some advise on how to create a views filter (D7) containing buttons with alphabetical ranges (like "A-F", "G-L", "M-R", "S-Z", "All") filtering on the first letter of the nodes' title field?
I've seen a post on how to create an alphabetical index (http://drupal.org/node/641342) but i kind of need the letters grouped in ranges. Or is this something that's best done with search API/facets?

Any help would be greatly appreciated!

Best,

Toon