views argument, taxonomy term name, comma separated list

If someone provides a patch, it might.

The future is NOW (though not in terms of a patch):

http://drupal.org/node/54455#comment-239583

This issue is already implemented in Views 2. In order to use it:

1)enable the views provided taxonomy_term.
2) From all the existing arguments from the 'Arguments'.
3) Add 'Taxonomy: Term ID' argument with the following settings:
title = Content tagged with: %1
Validator =
Allow multiple terms per argument - Enabled.
4) Save the view.

On a side note having TQL module ported to D6 could be nice :)

The solution proposed in #5 didn't work for me so I wrote a patch.

I haded a new "argument type" in the "validator options" field in "Taxonomy term ID" argument. By selecting it, it is possible to have multiple term names in argument like .../Joe,Benny B.,Hakim/

The limitations are :

• There's no caching system
• I didn't test synonyms.
• It only works for comma separated names ('and' operator).

The patch add this to validate_argument function in views_plugin_argument_validate_taxonomy_term

      case 'converts':
        // This works only for terms separated by , 
        // TODO : Make it work for terms separated by +
        $tnames = $tnames_orig = drupal_explode_tags($argument);
        
        $placeholders = implode(', ', array_fill(0,count($tnames),"'%s'"));

        // Add $tnames at the end of $tnames because there's two sql where clauses
        foreach ($tnames as $value) {
          $tnames[] = $value;
        }

        // TODO : A caching system is missing
        // TODO : Test transform and synonyms
        if ($transform) {
          $result = db_query("SELECT replace(td.name, ' ', '-') key_name, td.* FROM {term_data} td LEFT JOIN {term_synonym} ts ON ts.tid = td.tid WHERE (replace(td.name, ' ', '-') in ($placeholders) OR replace(ts.name, ' ', '-') in ($placeholders))", $tnames);
        }
        else {
          $result = db_query("SELECT td.name key_name, td.* FROM {term_data} td LEFT JOIN {term_synonym} ts ON ts.tid = td.tid WHERE (td.name in ($placeholders) OR ts.name in ($placeholders))", $tnames);
        }
        
        $tids = array();
        
        while ($term = db_fetch_object($result)) {
          // TODO : Check this is relevant I'm not sure what it does
          if ($vids && empty($vids[$term->vid])) {
            return FALSE;
          }

          $tids[$term->key_name] = $term->tid;
        }

        $this->argument->argument = implode(',', array_unique($tids));
        $this->argument->validated_title = check_plain(implode(',',$tnames_orig));
        // If there's not the same number of tids than names in the original argument, we did not find a term.
        return ( count($tids) == count($tnames_orig) );

There is another issue about exactly this topic: #1248300: Contextual filters: Taxonomy filter validation using multiple term names
There a quite well written patch is added so mark this as duplicate. I'm sorry that this patch so basically got lost, but
it's indeed a problem how bigbigbig the queue is, and you even can't find out what all kind of patches are in.
Thanks for providing a patch anyway.