You can create a views-exposed-form--[view_id].tpl.php file for that view. Replace the text box with the HTML of your choice.
Another possibility is to use taxonomy reference or list-type field, but you would have to write a hook_form_alter and associated functions to set the value of that field in a custom module. This would give you the radio buttons in the views filter with BEF.
Actually, scratch all that. Here's the best option: update to the very latest Views, and then you can specify "Grouped filters". This lets you predefine regexes for the original text field exposed filter:
Label: A-F, Operator: Regex, Value: ^[A-Fa-f]
Label: G-L, etc....
If you drop your computed field, this will make the query run a little slower (though you may not notice if it is not a lot of data). If instead you run this on the computed field, you can use the equals operator which will run faster (especially if you add an index to the table for your computed field).
Ted
On 8/22/2012 12:03 PM, toon severijns wrote:
Thanks a lot Ted!
I've followed your advise and i've got the computed field to work. I can't seem to bring out the computed field as radio buttons with better exposed filters though as it's a text field. Maybe facets could be a solution.
Best,
Toon
On Tue, Aug 21, 2012 at 9:35 PM, Ted <ted-drupalists@webfirst.com> wrote:
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